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Full text of "73 Magazine (December 2001)"

DECEMBER 2001 

ISSUE #493 

USA $3.95 

CANADA $4.95 




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S00000109389HR6* JUL76 ft £ 

JACK SPEER „,„ 1TtuTue 

BUCKHASTER PUBLISHING p 



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THE TEAM 

El Supremo & Founder 
Wayne Green W2NSD 1 

Associate Publisher 
F. I. Marion 

Executive Editor 
Jack Burnett 

Managing Editor 

Joyce Sawlelle m 

Technical Editor 
Lam/ Antonuk WB9RRT 

Contributing Culprits 
MikeBryceWB8VGE 
Jim Gray II 
Jack Heller KB7NO 
Chuck Houghton WB6IGP 
Andy MacAllister W5ACM 
Joe Moel! K0OV 
Steve Nowak KESYNyo 
Dr. RjckOlsenN6NR 

Advertising Sales 
Evelyn Garrison WS7A 
21704 S,E. 35th St. 
tssaquah WA98G29 
425-557-961 1 
Fax: 425-557 9612 

Circulation 
Frances Hyvarinen 

Data Entry & Other Stuff 

Norman Marion 

Business Office 

Editorial - Advertising - Circulation 

Feedback - Product Reviews 

73 Amateur Radio Today Magazine 

70 Hancock Rd. 

Peterborough NH 03458-1107 

603-924-0058 

Fax:603-924-fi613 

Reprints: S3 per ariirte 
Back issues: $5 each 

Printed in ihe USA 



DECEMBER 2001 

ISSUE #493 



Manuscripts: Contributions for 
possible publication are most 
welcome. Well do the best we can to 
return anything you request, but we 
assume no responsibility for loss 
or damage Payment for submitted 
articles will be made after publication 
Please submit both a disk and a 
hard copy of your article [IBM (ok) 
or Mac (preferred) formats)^ carefully 
checked o>awings and schematics, 
and the dearest, best focused and 
lighted photos you can manage. How 
to write for 73" guideiines are available 
on request- US crtizens, please 
include your Social Security number 
with submitted manuscripts so we can 
submit it to you know who, 



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17 



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23 



28 



30 



32 



36 



37 



38 



40 



THE NEW! 




Amateur 
Radio Today 



TABLE OF CONTENTS 



FEATURES 

Microwind to the Rescue! — WA8YKN 

Let the wind keep your emergency batteries charged. 

Subdivision Subterfuge — KD5IDU 

A Houston homeowner handles his hamming. 

IOTA — AS096 — VU2SB J 

That's St. Marys Island to you ... 

Bare Bones Battery Booster — NOG J 

A good project — as long as you understand the 
dangers and limitations. 

VOM Primer — W2GOM/7 

This overview is helpful for beginners and old-timers 

alike. 

Travels with Henryk — Part 1 — SM0JHF 

SMOJHF shares some photos — and the fun of hamming. 

Ye Olde Fishpole Vertical — HL1/N8HI 

Some things never change — thankfully. 

The Builders Dozen — AA2JZ 

Uncommon uses for common stuff. 

IC-706 Goes to Heil — W5RK 

How to mate your loom rig with an old Heil headset 

Helsinki or Buzz! — G3SWH 

No-frills tickets meant an instant junket to OH-iand 
for this G3, 



DEPARTMENTS 

42 Above & Beyond — WB6FGP 

49 Ad Index 

64 Barter n' Buy 

61 Calendar Events 

46 The Digital Port — KB7NO 

51 Hamsats — W5ACM 

54 Homing In — KOOV 

4 Never Say Die — W2NSD/1 

48 New Products 

53 On the Go — KE8YN/0 

60 Propagation — Gray 

45 QRP — WB8VGE 

1 QRX 

63 Radio Bookshop 



E-Mail 

design73 (aHiol.com 



Web Page 

www.waynegrccn.com 



REVIEW 



Beginner's PS Tester — WB9YBM. N9BRL 

This variable active load will do the trick. 



24 RF Inferno — K7GCO 

Meet the new Raibeam antennas. 



QRK . . . 



More Hams Among Sept. 11 
Missi ng 

Bill Ruth W3HRD was a veteran of two wars and 
spent nearly 30 years as a social studies teacher He 
has now been declared dead in the September 11th 
attack on the Pentagon. 



According to the Washington Post, Ruth was a 
retired Army Chief Warrant Officer who lived in Mount 
Airy, Maryland, On the evening of Sept. 10th, he had 
presided over his first meeting as commander of his 
local Veterans of Foreign Wars post. The following 
day. he was at work in the Pentagon when a jetliner 

Continued on page 6 



73 Amateur Radio Today (ISSN 1052-2522) is published monthly by 73 Magazine. 70 Hancock Rd., 
Peterborough NH 03458-1107 The entire contents ©2001 by 73 Magazine. No part of this publication may be 
reproduced without written permission of the publisher, which is not atl that difficult to get. The subscription 
rate is: one year S24_97 T two years $44,97; Canada: one year $34,2 1 T two years 557.75. including postage and 
7% GST. Foreign postage; Si 9 surface. S42 airmail additional per year, payable in US funds on a US bank. 
Second class postage is pafed at Peterborough, NH. and at additional mailing offices. Canadian second class 
mail registration #178101. Canadian GST registration #125393314. Microfilm edition: University Microfilm, Ann 
Arbor Ml 48106. POSTMASTER; Send address changes to 73 Amateur Radio Today, 70 Hancock Rd., 
Peterborough NH 03458-11 07, 73 Amateur Radio Today is owned by Shabromat Way Ltd, of Hancock NH, 




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Surviving Bioterror 

A couple of years ago, I 
was about the only one writ- 
ing about the bioterror ism 
threat. Now it's the cover 
story of Newsweek and Time, 
and in feature articles in For- 
tune, etc- The World Trade 
Center attack finally woke 
the media into its usual pack 
action. But, how about you, 
are you awake yet? 

Yes, the government has 
been asleep on lhis n too — 
despite a 1 993 federal study 
reporting that 250 pounds of 
aerosolized anthrax sprayed 
over D.C. could kill up to 
three million people. The fact 
is that America is almost to- 
tally ill-prepared to deal with 
such an assault. 

Bush's appointment of Tom 
Ridee as the anti terror czar, 
but then not giving hi in con- 
trol over the countert error ism 
budgets, gives him little real 
power With dozens of fed- 
eral bureaucracies, all fight- 
ing for more money, and do- 
ing their best not to commu- 
nicate with other agencies, 
it's the usual D.C. mess. We 
have the State DepariinenU 
Defense Department, Cus- 
toms, FBI, CIA, NSA t DIA, 
CDC, NIH> FEMA, FDA, 
and on through the alphabet, 
all protecting their turf. 

I hope you took time to 
watch the recent PBS series 
on the drug wan It demon- 
strated the incredibly stupid 
way Congress went about 
dealing with the drug prob- 
lem and the mess it's made — 
plus hundreds of billions of 
our tax money that's been to- 
tally wasted — not to mention 
thousands of lives. 



Alas, I suspect this may be 
a blueprint for the war on 
terrorism. 

To start at the beginning: 
Anthrax seems like one of an 
enemy's most likely weap- 
ons. It's easv to make and 
freeze-dry into a powder. It's 
easy to disburse. By mail — 
pouff! — you're infected, from 
crop planes, a hot air balloon, 
a drone aircraft, spray cans, 
the Empire State Building 
observation deck, and so on. 

Well, what about getting 
vaccinated against anthrax? 
Sure, once the company 
(Acambis) that's supposed to 
be making it gets the bugs out 
of their system. Once they're 
able to safely make the vac- 
cine, the first few million doses 
will go to the military and 
then government employees. 

Oh, yes, there's one more 
complication. The immuniza- 
tion requires six doses of vac- 
cine given over 18 months, 
followed by yearly boosters. 
There's no word yet on the 
"acceptable losses" due to ad- 
verse reactions to the vac- 
cine. We do know that many 
Gulf War veterans who got 
anthrax vaccinations had hella- 
cious long term reactions to 
it. This does not inspire con- 
fidence in the whole immuni- 
zation process. You'll have 
even less if you read Walene 
James' Immunization, The 
Reality Behind the Myth (see 
page 7 of my Wisdom Guide), 
or Harris Coulter's Vaccina- 
tion — Social Violence and 
Criminality — The Medical 
Assault on the American 
Brain. 

Now, the gritty-nitty — 
here's what you can — no, 
make that must — do. 



4 73 Amateur Radio Today * December 2001 



Since telephones are usu- 
ally the first service to fail in 
emergencies, and since our 
government has not estab- 
lished any national emergency 

communications alternative, 
it's going to be radio amateurs 
who will, as in all past serious 
emergencies, provide it. 

• If you don't have a ham 
license, for heaven's sake get 
one — just memorize a few 
Q&As, 

• Gel a handie-talkie and 
get trained on emergency pro- 
cedures over a local repeater. 

• Join the local radio club 
and help them set up a van 
that will be able to permit all 
of the mobile radio services 
to intercommunicate. Like fire, 
police, doctors, hospitals, am- 
bulances, sheriffs, the mili- 
tary, CB, CAR FBI, Secret 
Service, and so on. 

• Urge every inactive li- 
censed ham in your area to 
get on the stick. Look s em up 
on a Callbook ROM and call 
them. 

■ Keep a couple of gallons 
of silver colloid on hand, plus 
the ability to make a whole 
lot more. This is one of the 
most powerful antibiotics 
there is and it costs pennies to 
make. The anthrax death rate 
is around 90% for those with- 
out antibiotics, and within 
three days after the first 
symptoms of a fever and a 
cough appear. 

• However, the best protec- 
tion against any pathogen is a 
powerful immune system. Have 
you started rebuilding the 
damage you've been doing to 
yours yet? 

The Silver Bullet 

Shades of the Lone Ranger! 



Well, our medical -pharma- 
ceutical complex has done it 
to us again, I mean the over- 
use of antibiotics which has 
resulted in bacteria becoming 
resistant. 

Researchers estimate that 
around half of antibiotic pre- 
scriptions are unnecessary. 
Then we put 70% of the anti- 
biotics we produce into live- 
stock — and eat the antibi- 
otic-laced meat. All this en- 
courages the weak microbes 
to become stronger. The re- 
sult is that bacterial infec- 
tions, including tuberculosis, 
pneumonia, and meningitis, 
which used to be easily 
handicd with antibiotics, are 
becoming deadly. 

Which leaves us with silver 
colloid, to which microbes 
have been unable to adapt. 

With the increasing threat 
of biowarfare, it seems only 
prudent to have some silver 
colloid on hand. No prescript 
tion needed, and it's el cheapo 
to make, at a penny or two a 
gallon. 

But, do your homework. 
Read The Plague Makers by 
Dr. Jeffrey Fisher (page 22 in 
my Wisdom Guide), and then 
The Silver Micro-Bullet by 
Dr. Paul Farber{pagel8, ibid.). 
How do you make and use it? 
Read the Miller 73 article in 
the April 1997 issue. If you 
have been totally imprudent 
and don't have that issue, a 
reprint of the article is avail- 
able for $5 from Radio 
Bookshop — item #98, see 
page 63. 

You can read more about 
the antibiotic resistance mess 

Continued on page 8 




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continued from page I 

piloted by a suicide terrorist slammed into the 
building, 

In addition to a lover of ham radio. Bitl Ruth 
was described as an avid Redskins fan and a 
motorcyclist who enjoyed riding in Maryland's 
tolling hills. A Vietnam and Gulf War veteran, Ruth 
held a master's degree and taught for nearly three 
decades, most recently at John T. Baker Middle 
School in the town of Damascus, Maryland, 

In addition, the ARRL Letter reports that miss- 
ing are Rod Coppola KA2KET, 46. of NYC, who 
was the transmitter engineer on duly for Public 
Broadcasting station WNET, channel 13 at the 
time the attack occurred, Winston Grant 
KA2DRF, 59, of West Hempstead, NY- who was 
a computer technician with Empire Blue Cross/ 
Blue Shield, 

Neither man has been seen since the twin tow- 
ers collapsed after being hit by hijacked jetliners 
on September 11th, bringing to seven the num- 
ber of hams known to have been missing since 
that day. 

Thanks to Daily DX, Washington Post, ARRL 
and Henry Feinberg K2SSQ, via Newsline, Bill 
Pasternak WA6fTF r editor. 



Financial Assistance for 
Missing Engineers' 
Families 

The Portland Chapter of the Society of Broad- 
cast Engineers and the ARRL both report that a 
fund has been established to assist the families 
of broadcast engineers still missing at the col- 
lapsed World Trade Center Checks can be sent 
to the Ennes Educational Foundation Trust, c/o 
The Society of Broadcast Engineers, Inc., 9247 
N. Meridian St.. Suite 305 T Indianapolis. IN 46260. 
Please mark your envelope to the attention of 
the "Broadcast Engineer Relief Fund." 

Thanks to ARRL Portland SBE courtesy of 
Newsline, Bill Pasternak WA6ITF editor 



Indiana Hams 
at Ground Zero 



Ham radio operators from Indiana were among 
those who made the trek to New York City to aid in 
rescue efforts after the September 11th terrorist 
attack. Their job was communications. 

Thirty-six hours after the first airplane 
crashed into the World Trade Center, Indiana's 
Task Force One was standing at the ground 
zero. Among the 62 members of this elite 
search and rescue team were two Indianapolis 
amateur radio operators. 

Veteran firefighter Jim Curseaden KB92FF 
and Ed Elrod W9PTO made the 14-hour road 
trip to help with disaster efforts. Both men made 

6 73 Amateur Radio Today * December 2001 



up the communications arm of this search and 
rescue team, 

The moment they arrived, each man began 
setting up a UHF communications link from 
ground zero to their staging point severai miles 
away at the Javits Convention Center. Accord- 
ing to Jim Curseaden. getting UHF signals 
through the concrete canyon of New York City 
was a major challenge. 

Ed Elrod said they first installed a repeater on 
a nearby building and directed a yagi antenna at 
the mountain of rubble. The Javits Convention 
Center posed another radio obstacle. Hand-held 
radios could not reach the repeater 

To fix this problem, Elrod wired a up a remote 
base on the roof of the convention center. This 
new link made it possible to communicate with 
the Indiana Search and Rescue personnel above 
and below the World Trade Center rums. 

Ed Elrod's most inspirational moment came 
during his second trip out of the devastation. 

Alt week, hundreds of people had been lining 
the streets, cheering and showing signs of sup- 
port. When heavy rains began dousing New York, 
the crowds disappeared. He said the contrast 
was amazing. The streets were nearly empty: 
except for one lonely figure standing in the rain. 
It was an elderly woman, holding a sign that read: 
"Thank You." 

Thanks to Jack Parker W8ISH, via Newsline. 
BUI Pasternak WA6ITF. editor. 



CQ Contest Magazine SK; 
Ditto Hard -Cop y Logs 

CO Contest, a magazine devoted to the art of 
amateur radio contesting ceased publication with 
its October, 2001, issue. CO Contest had been 
published 10 times per year since 1996, 

CQ Communications President and Publisher 
Dick Ross K2MGA said that the move was *a 
purely business decision" and that subscriptions 
to the specialty magazine would be fulflllecj "on 
a dollar-for*dollar" basis with the company's 
flagship magazine, CQ Amateur Radio. 

Writing in the final issue, CO Contest Editor 
Bob Cox K3EST explained that "good business 
economics" dictated that CQ Communications 
could no longer continue to publish CO Contest 
He thanked the readers for their ideas, gener- 
osity, and loyalty." Cox also said he's working 
on developing an independent contest maga- 
zine on the World Wide Web, which would fulfill 
subscribers 1 terms if it is launched. 

In a separate "Message from the Publisher." 
Ross explained that approximately 5750,000 has 
been invested in CO Contest since its launch in 
1996, with cumulative losses exceeding 
S1 50.000. "As much as I love contesting," Ross 
said. It no longer makes sense from a business 
standpoint to continue to subsidize CQ Contest 



In the meantime, following the events of SepL 
11 . CQ has announced that all contest log sub- 
mittals will henceforth be accepted in E-mail for- 
mat only, and that there would be no guarantee 
that mailed entries would ever be opened. 

Thanks toCQ E-mailed press release, published 
reports. 



Ham Survivor at WTC 

A cause to rejoice amidst the chaos is the case 
of an amateur who worked in the World Trade 
Center. Rob Nail WV0S reports that his friend, 
Herman Belderok. Jr.. KBQEEB, managed to get 
out of his building just minutes before the struc* 
ture collapsed. Thankfully, Herman survived un- 
scathed, 

Thanks to WVQS. via Newsline, Bill Pasternak 
WA6ITF t editor. 



Where Have All 
the Amateurs Gone? 

Remember the old Kingston Trio folk tune, 
u Where Have AJI the Flowers Gone?" Well it's 
now over a year since restructuring, and observe 
ers of the Amateur Radio service are asking 
where all the hams have gone. The answer is that 
they are on the move with the rest of society. 

What growth ham radio is experiencing is fol- 
lowing population shifts, That's according to 
W5YI VEC Administrator Fred Maia, According 
to statistics Maia recently published, about 
682,000 people in the United States hold Ama- 
teur service licenses. Of these, just over 95,000 
are Extra class, 87.000 are Advanced, 137,000 
are Generals, and 320,000 are Technicians. Fi- 
nally. 42.000 hams continue to hold onto their 
Novice dass ficenses. 

Right now, more than half of all licensed hams 
in the US live in 10 of the 50 states, The states 
with the highest amateur populations are Cali- 
fornia, 1 02.000; Texas, with close to 42.000: and 
Florida, with almost 40.000. New York state is 
fourth with 32.275 hams. 

The four slates with the fewest hams are Wyo- 
ming with 1 t 615; South Dakota, with 1 .588; North 
Dakota, with 1562; and Delaware, with only 1389 
hams. 

But even these numbers are changing. Maia 
says thai even though they have relatively small 
ham populations, Utah, Wyoming, Nevada. 
Idaho. Arizona, and New Mexico had triple the 
ham radio population growth of other states. 
Texas, along with Oklahoma and Colorado, had 
double the ham growth of other states. 

And here's a twist. If you consider high popu- 
lation states with major cities like California, New 
York, and Illinois, they had no growth at all. In 
fact, Maia says some of those states actually 
suffered a net loss -n the number of hams. 












Why this is happening may have something 
to do with employment. Business trends are 
changing. Many high-tech companies wanting to 
reduce operating expenses are moving to iess 
populated areas. Where the companies go, so 
do the job seekers* with many high-tech workers 
likely being hams. 

Thanks to David Black KB4KCH t via Newsline, 
Bill Pasternak WA6lTF t editor. 



More Hams Upgrading, 
But Little New Blood 

A tot of hams are upgrading but there are few 
new people coming into the hobby. That was the 
bottom line as we passed the halfway point in 
the year 2001, 

According to a person who should know, in 
the last four years the United States Amateur 
Radio Sen/ice has grown at a rate of only 2,000 
additional hams annually. That's about three 
tenths of one percent per year and less than the 
United States Census Bureau's total projected 
percentage increase in the total population of the 
country. 

The person presenting the facts is Fred Maia 
W5Y! t who heads up the W5YI VEC and has 
been carefully evaluating trends in ham radio for 
over two decades. And what he has found is good 
reason for concern. 

According to Maia. four years ago, the total 
Amateur census stood at 674,000. It now stands 
at 682,000. But, says Maia, an additional 30,000 
amateurs are still listed in the FCC's database 
which includes those whose licenses have ex- 
pired, but who fail within the governments 2-year 
renewal grace period, That's the time when you 
cannot operate a station but can renew without 
taking an exam. 

Maia says that the FCC is now canceling about 
1 ,500 licenses every month that are not renewed 
within that grace period. He suspects that many 
are silent keys. 

The good news — if you can calf it that — is 
that hams upgraded their licenses in unprec- 
edented numbers. Maia believes that this was 
motivated by the FCC's restructuring of the 
United States Amateur Radio Service. With the 
reduction of the top Morse testing speed to 5 
wprn, most Technician Pius, General, and Ad- 
vanced class tickets upgraded simply because 
the 1 3 and 20 word per minute code exams were 
no longer required. As a result, and to the de- 
light of equipment suppliers, tens of thousands 
of potential high frequency operators have been 
added to the all-band rolls. By license class 
that's 20,000 new Extra class and 27,000 added 
Generals. 

But there is another side to the equation. As 
you might expect, the Novice, Technician Plus, 
and Advanced class — all of which have essen- 
tially been placed in limbo since restructuring — 
have seen comparable decreases in numbers. 
Advanced is down by about 15,000. The Tech 
Plus is down by 40,000 and there are 8,000 fewer 
Novices. The Tech Plus got a double-barrel hit 
since this license class is no longer being issued. 






Instead, the database of Technician Plus and 
Technician class have been lumped together in 
the FCC's database. Existing Tech Plus license 
holders are having their tickets renewed as Tech- 
nician even though they hold a 5 wpm code 
credit. This, says Maia, distorts the total of No- 
Code Technician class statistics since many 
Technician class holders do indeed hold Morse 
Code credit. 

There is some good news. Statistics show that 
about 1,600 new code-free Technician class 
hams are licensed for the first time each month. 
That's close to 19,000 annually. 



The first code-free Technician class tickets 
began appearing in the spring of 1991. Its now 
a decade later, and these licenses are just com- 
ing up for renewal. But, says Mata, it is very dif- 
ficult to determine from the FCC's licensing 
records the percentages of eligible Technician and 
Technician Plus operators that are renewing their 
licenses. 

According to Maia, whose VEC operation also 
handles license renewals — it appears as if many 
are not. Maia says that the Technician class has 

Continued on page 62 



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73 Amateur Radio Today * December 2001 7 



Neiier shv die 

continued from page 4 

in the May 2001 Scientific 
American. 



(Content Is King 

If youll peek over my 
shoulder into my crystal ball, 
which hasn't failed mo yet, 
you'll gel a good look at the 
future. Now, are you planning 
your life so as to take advan- 
tage of what's coming, or 
watching Seinfeld and Frasier 
reruns? 

Yes, the rush of Internet 
dot-coms was premature. The 
Internet is still in the hand- 
cranked party line telephone 
stage of growth. The Web in- 
frastructure Is still rickety, 
with aged servers and tele- 
phone line choke points for 
most subscribers. We're head- 
ing toward a time when the 
world is fiber-opt ieked and a 
movie can be fast-forward 
downloaded in seconds. You 
want to read a book? Szzzi, 
and you've £ol it downloaded 
for a buck. No printing, no 
distributors or bookstore in- 
ventories. Hey, no book pub- 
lisher — you've downloaded 
it from the author. 

Who needs Sony Music or 
Warner Brothers when a mu- 
sical group can sell direct to 
the end users via the Web? 
We'll download an hour of 
music in a couple of seconds 
and burn it into our own CD. 

This is not a good lime to 
make a long-term investment 
in any publishers or record 
companies. Just as Wal-Mart 
and the other discount chains 
have put most downtown stores 
out of business, we'll be see- 
ing the Web doing major sur- 
sierv on the whole merchandise 
distribution system. 

In a tew years (months?), I 
won't have to light the fast- 
talking salesmen at the dis- 
count camera stores to buy 
the new digital camera — III 
gel the lowest price from the 
manufacturer or the importer. 
Why should 1 drive an hour to 
Manchester or Nashua and 
deal with a sales clerk who 
knows almost nothing about 
the stuff he's selling when 1 
can go to the Nikon site and 
get any info I want, and then 

8 73 Amateur Radio Today • December 2001 



get the camera at a far lower 
price than Circuit City or Buy 
Right? 

We're still going to need 
the giant companies for hard- 
ware — it's in the content 
that small businesses and 
entrepreneurs will be king, 

Got you thinking yet? 

Okay, if that didn't get your 
gray cells jumping, let me 
jam a thinking cap over that 
square protuberance above your 
shoulders. 

Do you have any special 
interest that you know more 
about than 99*J of the public? 
It can be your work or a 
hobby* If you don't, it s s time 
to get a life. Step one is to get 
busy and outline a video pre- 
sentation which will help that 
99% learn more about your 
interest and why it's so inter- 
esting. Step two is to gel a 
digital video camera and 
computer editing system and 
start producing the video. All 
you need is a camera and an 
iMac system. I got mine a 
year ago and the whole w r orks 
then only cost 52,500, Since 
then prices have, as usual for 
electronics and computers, 
dropped. Let me know whai 
you find that works and I'll 
pass it along. 

It you love to fly kites, well 
get at it and show us how to do 
it and explain why it's so 
much fun and costs so little to 
enjoy. TU pay a buck anytime 
to download something like 
that. 

If you know how to make 
.uid fly ultralights, tell and show 
us. Or one of those Hying 
parachutes! 

We're heading into a world 
where content will be king 
and give you the Midas touch 

— if you are prepared. 
For all its problems, e-eom- 

merce is already a S34 billion 
business and growing at 35*5 
a year. Compare this to the 
traditional retail growth of 
4% to 5% per year! And this 
with the crude Web system 
we have to work with. 

What customers want is the 
ability to shop via the Internet 

— to see a video showing 
them the benefits and features 
of a product, and to be able to 
answer their questions. I want 
to see what the latest ham rig 
can do for me — what all that 



maze of knobs and buttons 

are for and how I'm going to 
have the time of my life 
twisting and pushing them. 

And then, if I can't stand 
for one more day not having. 
I w r ant it delivered pronto. 

And there's the big catch. 
America's infrastructure is 
seriously outdated. We're not 
2oino to be ordering Webvan- 
like groceries which can't get 
through the traffic jams- Or 
stuff coming by air to airports 
that are overloaded. When I 
tried to fly to California to 
give a talk to a ham club I 
only got as far as Chicago be- 
fore United Airlines gave up 
and sent me back to New 
Hampshire. I had to do my 
talk over the telephone. 

Our roads are cracking and 
potholes proliferating, our 
htidges crumbling, and our 
airports are desperately in 
need of more runways. Har- 
bors are silting up, landfills 
choking with old PCs, and 
our water is running dry. It's 
been 40 years since we've 
made a major infrastructure 
investment, and we're suffer- 
ing because of ii. The esti- 
mated cost? About $1.5 tril- 
lion, the same as the recent 
tax cut. With an estimated 
$20 trillion industry as the 
prize, it's time to give your 
politicians a hot fool. Try to 
get their minds off those fat 
envelopes of cash and vaca- 
tion trips from lobbyists, add 
onto the voters. 

In the meanw ? hilc, are you 
gelling ready lo get a piece o( 
the action? Hey. wake up. Fin 
talking to you. 

The competitive market for 
creative music, books, films, 
art, and so on will, I predict, 
precipitate an explosion of 
creativity. The hold the music 
and book publishers have 
over these industries will blow 
away when they can no longer 
prevent prospective customers 
from knowing about new r works. 
The big company control over 
distribution lo book and music 
stores will blow away. No 
more bookstores or music stones. 
One thing that is needed is 
a reliable source of informa- 
tion on what's good and what 
isn't. It was my providing this 
information via my CD Re- 
view magazine when CDs 



were first introduced that 
helped CDs become the fast* 
est growing consumer elec- 
tronics industry in history. 
We mercilessly reviewed new 
CD releases and we polled 
our readers on how much 
they liked the sound, perfor- 
mance and the music on the 
CDs they'd bought. The re- 
sult was a disaster for the ma- 
jor labels, with sales on inde- 
pendent labels going from 
4% of the market to 16%, a 
loss of billions for the majors, 
Someone ought to start a 
magazine and Web site for 
music and books available 
over the Web. It's a huge 
niche with the potential for 
making millions. You'd be 
able to dow nload reviews and 
raiings for the top-rated mu- 
sic of any kind that interests 
you for a dime. Ditto books. 
Or spend S20 for a year of 
Merciless Music Reviews 
magazine or Merciless Book 
Reviews magazine* 

It costs about $750,000 
these davs to yet a new mag a* 
zinc up and running — any- 
one interested? Having started 
a couple dozen successful 
magazines. 1 know the ropes 
and will be glad to help. 

Vaccines 

I've written about vaccines 
several times. I've even in- 
cluded a review of Walene 
James's hnmtmiztnion — The 
Rett tin Behind the Myth in 
my Wisdom Guide (p. 7). But 
the fact is that you are still al- 
lowing the medical/pharma- 
ceutical industry to vaccinate 
your children and you're bar- 
in n vour arm (or rear) when- 
ever a doctor says to. I know, 
it's too much trouble to do 
some reading and become in- 
formed — and Wayne \ a nut 
about the medical industry 
anyway. 

The June Acres U.S.A. had 
a most interesting article on 
vaccines. This monthly publi- 
cation ($27/yr.) is the best 
I've found to provide honest 
reporting on medical and (bod 
matters (call 800-355-5313 to 
subscribe). Where else would 
vou find out about Linda 
Fisher being nominated for 

Continued on page 62 











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216 East 10th Street 
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[thorn i I @ bioelectrif ier. com] 



Microwind to the Rescue! 

Let the wind keep your emergency batteries charged. 



Wind-powered generators have been around for a long time, but this unusual and 
efficient wind-powered generator is really something different 




inishing a project always brings 
two things — a sense of accom- 
plishment, and a pile of leftover 
parts. In this case, the project was a 
CNC-con trolled drilling machine for 
fabricating circuil boards. Among the 
leftover parts were various pipe ru- 
lings, some scraps of angle iron and 
several hefty stepper motors. 




Photo A. The Microwind generator. 

10 73 Amateur Radio Today * December 2001 



I hadn't really decided what to do 
with the leftovers until I noticed the 
trash one of the neighbors had carried 
to the curb. On top of the pile was a 
rather beat-up box fan. and since it was 
very windy, ihe fan was spinning so 
fast I couldn't see the blades. Some- 
where in the hack of my head where 
new projects begin, a light went on. If 

this thing spins so 
well in the wind, 
fitting it to one of 
the stepper motors 
could make a small 
wind neneraior. It 

S3 

could possihh gen- 
erate enough free 
energy" lo help 

keep my emergency 
batteries charged, 

especially in stormy 
weather when there 
is an abundance 
of wind and the 
solar panels are not 
producing anything. 
I carried the fan 
home with me, 
took it apart and 
removed the plas- 
tic blade assembly 
from the motor. 



The rest of the fan went back to the 
curb. 

Most small wind generators use DC 
motors to produce direct current. The 
problem is that small DC motors run at 
very high RPN1 and when used as a 
generator will not produce enough 
voltage to charge a battery until things 
are spinning much faster than a typical 
wind generator can safely turn. 

Unlike a DC motor, a stepper motor 
has a permanent-magnet rotor inside a 
wire-wound field. When the field 
windings are energized, the rotor 
"steps" to the next pole, making the 
stepper useful for critical positioning 
tasks. However, when the shaft of a 
stepper motor is rotated, it becomes an 
alternator, producing AC current. Most 
precision steppers are designed with a 
step angle of less than two degrees, so 
there are LOTS of poles. Since the 
low-speed performance of an alterna- 
tor increases with the number of poles, 
it follows that a stepper should work 
very well in a low-speed wind-driven 
configuration. 

To test this assumption I selected 
one of the larger stepper motors and 
clamped the mounting Range in the 
vise. Checking the six leads with an 
ohmmeter. I discovered that there were 






two separate windings, each with a 
center tap. I set the meter on AC 
VOLTS and connected il across one 
winding. To monitor the output fre- 
quency, I connected my old B&W fre- 
quency counter across the winding as 
well. Spinning the motor with a cordless 
electric drill produced over 40 wilts at 
375 Hz! With a center-tapped winding, 
this would he perfect for a simple full- 
wave rectifier. In addition, with an- 
other winding to generate a second 
phase, the output from a second recti- 
fier could he connected in parallel with 
the first, increasing the output current 

Attaching the blades 

The next step was to find a way to 
mount the fan hlades to the motor. The 
stepper motor has a 5/16" shaft. The 
fan hub I had scrounged from the trash 
heap was designed to fit on a 5/16" 
flatted shaft, however it wouldn't mount 
directly on the motor since the blade hub 
would not clear the motor flange. 

To solve this problem I took a 2'' 
long piece of 3/4" diameter aluminum 
bar stock and drilled a 1/4" diameter 
hole straight through from one end to 
the other. From one end, I tapped the 
hole with a 5/16"- IS thread. Turning 
the piece around, 1 bored it hallway 
through with a 5/16" drill On this end, 
1 also drilled in from the side with a 





Photo B* The emergency station: The ArgonauL HTsfor 2 meters and CB. a scanner. 4" 
television, all -band receiver and 600- watt inverter; all powered front a 12-voIf deep- 
cycle battery: The MicroMind keeps it charged and ready! 



Photo G The motor mount turns freely on 

the mast pivot. 



#36 drill and tapped the hole for a #6- 
32 set screw to hold it onto the motor 
shaft. 

I first mounted the extension to the 
motor shaft and tightened the set 
screw, I then drilled through the fan 
hub with the 5/16" drill, used a small 
round file to remove the flat side from 
die plastic bore and secured it to the 
extension with a 5/1 6" bolt and lock 
washer. Everything cleared, and it 
spun without any serious wobbles, so I 
took the motor/fan assemhly outside 
and stood in the driveway facing the 
wind. I was pleased when, on the next 
gust, the Ian started to spin .*. I had a 
Microwind generator! 

Mast and pivot bearing 

Now that I had a way to mount the 
blades onto the motor, I needed to find 
a way to mount the assembly up in the 
air. Checking through the pile of left- 
oxer parts, I found a piece of 3/4" wa- 
ter pipe and a matching floor flange. I 
also had a few 3/4" pipe nipples ft" 
long, and some short pieces oi 1/2" 
EMT electrical conduit. 

I slid the conduit down into the 3/4" 
pipe until about 8" was sticking out the 
end. It was a loose fit, so I dro\c a 
couple of small nails into the gap to 
lighten it up. Since I have a small 
welder I spot- welded the two pieces 
together. Then drove a 5/8" flat washer 
down over the conduit to rest on the 
pipe. (If you don't have a welder, 
steel-filled epoxy should work just 



fine.) The pipe, conduit and washer 
would verve as both the mast and ihe 
pivot bearing so that the Microwind 
generator could yaw 7 freely into the 
wind. I also cut a 1/2" wide ring off the 
end of the 3/4" pipe, which I drilled 
and tapped for a #6-32 set screw. This 
would become a retainer to prevent the 
generator from slipping off the end of 
the conduit. This is shown in detail in 

Fig. 1- 

Mounting the stepper motor 

I had a rail from an old bed frame l\l 




Photo /X Stepper motor and circuit board 
attached and wired, The cable passes 
down through the center of the masL 

73 Amateur Radio Today • December 2001 11 



■ ■ ■ 




Fig. L Microwitid generator assembly* 

scrounged from the trash, and it was 
made from 2" wide angle iron, I cut a 
4" long piece of ihis and drilled two 
1/4" holes in it lo fit the mounting 
flange of the stepper motor. If s impor- 
tant to keep the holes as close as pos- 
sible to the edge of the angle iron, so 
that when it's mounted, the motor will 
be as high as possible. 

1 threaded the ft" pipe nipple into the 
3/4" pipe flange. Turning the flange 
over so that the flat side was facing up, 
I clamped the angle iron motor mount 
lo the flange with locking pliers and 
spot-welded them together, A pair of 
1/4" bolts and nuts would work line 
for this, but since I had the welder out 
anyway, welding it was quicker; While 
I was at it, I found a small right-angle 
corner bracket and welded it onto the 



COLLAR MADE FROM 
3/4" PIPE DRILLED AND 
TAPPED FOR SET SCREW 



i 



WASHER 





Fig. 2. Mast and pivot assembly made from pipe and conduit 

scraps. 

12 73 Amateur Radio Today ■ December 2001 



other side of the 

flange, facing in the 
opposite direction. 
This would pro- 
vide a place to 
mount the small 
rectifier circuit 
board, making it 
possible to bring 
two wires down 
the mast instead 
of six. 

Putting it all 
together 

Clamping the mast pipe into the 
vise, I slipped the generator head as- 
sembly over the conduit pivot post. 
The conduit was a bit long, hitting the 
motor, so I used a tubing cutler to trim 
the pivot until, with the end of the pipe 
nipple resting on the 5/8" washer, there 
was just barely enough conduit above 
the flansc to mount the 1/2" wide re- 
iaintng collar. I also carefully de- 
burred the inside of the conduit so that 
i here would he no sharp edges to cut 
the wires. Once I was sure that every- 
thing fit and would rotate freely with- 
out binding, I took it apart and painted 
the generator head assemhlv. When the 
paint was dry, I rubbed a thick coat of 
grease on the pivot and re-assembled 
everything, Bolting the stepper motor, 
shaft extension and Ian blades onto the 

bead assembly, the 
Mierowind eenera- 
tor was starting to 
take shape, 

One tiling lack- 
ing 7 however, was 
a tail to keep it 
pointed into the 
wind. Once again, 
scrounging the junk 
pile, I found a 
section of light 
steel slotted "IT 
channel intended 
to mount adjust* 
able shelf brack- 
ets to the wall. I 
cut an 18" long 
piece and drilled 
two holes to clamp 
it to the generator 
head with a small 



1/2" EMT 
CONDUIT 



3/4" PIPE 



4 *U" boll and nuts. I cut a tail fin 
from a piece of plastic sign board 
and fastened it to the tail boom with 

#6-32 screws and nuts. Fig. 2 shows 
the assembly details for the Microwind 



generator. 



Electrical circuit: two-phase AC to 
DC 

With the mechanical assembly fin- 
ished, the next step was the electrical 
hookup to gel power out of the ma- 
chine. Bringing two-phase AC down 
the mast is not practical, since it 
would require six wires. A much bet- 
ter idea is to install a two-phase rec- 
tifier at the stepper motor and 
bringing the DC output down using 
only two wires. Fig. 3 shows the cir- 
cuit, which is actually two separate 
full-wave rectifiers with the outputs 
connected in parallel. I made a small 
circuit board to mount the rectifier di- 
odes and terminal blocks to make the 
connection simple. Fig. 4 shows the 
component layout, 

The circuit board was assembled, 
the flux cleaned from the soldered con- 
nections, and the board was heavily 
sprayed with clear urethane to seal it. 
(Put a piece of masking tape over the 
terminal blocks before you spray!) 

The circuit board was then mounted 
on a 3-1/2" x 4" piece of plywood us- 
ing small plastic standoff spacers and 
#4-40 screws and nuts. The plywood 
was also sealed with clear urethane. 
Once all the urethane was drv, I con- 

m 

nected the wires from the stepper mo- 
tor to the terminal block, and also used 
a piece of two-conductor cable about 
ten feet long to connect to the DC out- 
put block. Once everything was con- 
nected, the plywood with the circuit 
board attached was mounted on the 
small comer bracket behind the step- 
per motor. I fed the cable down 
through the center of the mast, and an- 
chored it to the stepper motor with a 
large nylon wire tie, positioning it 
carefully so that it passed straight 
through the center of the 1/2" conduit 
without touching the edges. Note that 
this is why it's necessary to mount the 
motor as high as possible - — to get 
room to pass the cable down through 
the mast. 



CT 



1N4004 
1N40O4 



B 




!> 



o + 



K 



? 



470 MFD 
35v 



RECTIFIED DC 
TO REGULATOR 



O — 



IN 4 00 4 

<H>H- 

IN4004 



STEPPER MOTOR 



Fig. 3. Stepper motor generates two-phase AC, which is rectified and filtered before 
bringing (he power down to the shack. 



Bringing the power down 
to the ground 

I've built several wind generators in 
sizes ranging from the Microwind up 
to machines with eight- foot rotors, and 
I have never needed to use slip rings 
and brushes at the top of the tower. To 
prevent wrapping the wires around the 
tower, I have always simply attached 
the wires at the top with a strain relief, 
and passed the wires down through the 
center of the mast. At the bottom of the 
mast, I let the wires hang straight 
down for twenty feet or so. The wires 
can't wrap around anything, and in the 
event that the wind does turn the gen- 
erator a complete 360 degrees , all that 
happens is that a single twist is put into 
the pair of wires. I installed a plug at 
the bottom of the tower, so that should 
the wires ever accumulate more than a 
turn or two, if s a simple matter to un- 
plug the wire, untwist it and plug it in 
again. This doesn't happen as often as 
you might think, since the wind tends 
to even out My biggest machine was 



up for a full year before we moved, 
and in that time I unplugged and un- 
twisted the wire exactly once. This is 
hardly worth the added complexity of 
brushes and slip rings. 

Once all the electrical connections 
were made and the circuit board was 
mounted, I sprayed another coat of 
urethane over everything, including 
the stepper motor. This would protect 
the connections, and also keep any wa- 
ter from seeping into the motor 
through the seams. I then cut a small 
piece of aluminum flashing and bent it 
into a "U"-shapcd cover, which I at- 
tached to the plywood with two 
screws. This covered the motor and 
electrical connections to protein them 
from direct exposure to the weather 

Once the urethane was dry, I carried 
the Microwind generator up onto the 
shop roof and used a pair of large hose 
clamps to attach the pipe mast to the 4" 
vent that came up through the roof 
from the bathroom. I connected the 
end of the two-conductor cable to a 




PHASE 1 
PHASE I 

PHASE I 

PHASfc - 

PHASE 
PHASE 2 



- A 

- B 

- CENTERTAP 

- CENTERTAP 

- A 

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Fig, 4. Component layout for the rectifier circuit board. 



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470 

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Fig. 5. The regulator prevents voltage peaks from datnaging equipment The LED lights 
when the voltage from the Microwind generator reaches 12 volts. 



section cut from an old 100-foot exten- 
sion cord, dropped it down ihe middle 
of the tower and brought the* other end 
into the shop. 

First tests: stormy weather! 



very next evening a strong 
weather front passed through our area, 
and as the temperature dropped, we also 
had some very strong, gusty winds. I 
hooked up a multi-meter in series with 
the positive lead and set it to measure 
current, then connected an analog 0-30 
volt DC voltmeter across the line. For a 
load, I found a hullet-shaped 1 2-volt 
trailer clearance light and connected this 
lo the line. 

To my surprise, the Microwind gen- 
erator picked up a strong gust and the 
trailer light started to glow brightly , T . it 
was producing quite a hit of power in the 
gusts, I watched the meters through the 
evening, and at the strongest peaks I was 
able to measure over 20 volts at 750 
milliamps. I measured 10 to 15 watts 
many times through the evening when- 
ever the wind picked up. 

Obviously, this is not enough to power 
your house, or even a good-sized light 
bulb, but it's plenty to trickle-charge a 
car battery used to 
operate an emer- 
gency ham station 
when the power 
grid Ls down. By 
comparison, a 10 
watt solar panel 
costs between SI (X) 
and SI 50, and it 
will not generate a 
single milliarnp at 
night, or when the 
sky is darkened by 
storm clouds. 



Regulator circuit 

It is not a good idea to connect the 
Microwind generator directly to a bat- 
tery used to power your emergency 
ham rig. Once the battery is hilly 
charged, the voltage in wind gusts 
could reach 25 volts or more, which 
could be bad news for any electronic 
equipment connected to it. Fig. 5 
shows a simple regulator circuit to 
clamp the voltage to 15 volts, a level 
that is safe for most electronics made 
to be powered from a 1 2- volt circuit. 
Also included in the circuit is an isola- 
tion diode to keep the 1 2-volt battery 
from discharging backwards through 
the circuit. This is always good prac- 
tice, especially when you have other 
sources of charging current, such as a 
solar array. I also included a zener di- 
ode and a small transistor, which acts 
as a voltage-controlled switch. When 
the voltage crosses the 1 2-volt thresh- 
old, the LED will light, indicating that 
the charging level has been reached. 
The circuit board component layout is 
shown in Fig. 6. Both the two-phase 
rectifier and the regulator boards are 
identical in size. The foil patterns for 
the boards are shown in Fig. 7. 



7fl 1 5 






01 '1 



- — ■ '^j 
-O 




- -— 






Fig, 6. Component layout for the regulator circuit hoard. 



14 73 Amateur Radio Today ■ December 2001 



1.950"^ 



1.950 



?3 





Fig, 7. Printed circuit board patterns for the rectifier and regulator. 



More is better! 

Since the Microwind project worked 
out well and 1 still had a few stepper 
motors left over, I located a few more 
junk fans and salvaged the blades, I 
now have three of these little machines 
spinning happih in the wind. One of 
the fans had a 1/2" shaft, so when I 
made the extension piece I chucked it 
in the lathe and turned one end down 
to 1/2" outside diameter after drilling, 
tapping and boring through the center 
I filed a flat on ii to lit into the fan 




Photo E~ The Microwind generator with 
blades attached. All it needs now is a tail 
to keep it pointed into the wind. 



hub and secured it with the 5/16" bolt. 
This particular fan blade had a large 
flat center hub, which was not very 
streamlined. In order to cut the wind 
loading, I found a white plastic funnel 
that closely matched the diameter of 
the hub and mounted it with four small 
sheet metal screws. 

The shop roof proved to be a less- 
than-ideal location for a wind genera- 
ton Located behind the house, the air 
swirled over the roof and down onto 
the shop in all sorts of eddies. The 
Microwind generator spent most of the 
time yawing back and forth, trying to 
track the shilling wind. I installed one 
of them on top of the 45 -foot tower be- 
side the shop, which is the proposed 
location for a large generator. This 
"next generation" wind machine will 
utilize an alterna- 
tor made by add- 
ing neodymium 
maenets to the ro- 
tor of a single- 
phase AC induc- 
tion motor. While 
Tin working on 
this project, the 
Microwind gen- 
erator is giving 
me information on 
the wind speeds 
and directions I 
can expect when 
it's big brother ar- 
rives on the site. 
So far, it's show- 
ing a dramatic 



difference between the high and low 
sites. A good rule of thumb is to locate 
anv wind generator 12 to 15 feet above 

J A— 

any nearby obstructions. 

The Microwind generator is a fun 
project and provides a good, simple in- 
troduction to wind technology. It's 

also an unusual and practical applica- 
tion for surplus stepper motors. More 
experiments in this area could be inter- 
esting,., the small plastic fan blades are 
not driving these steppers to the maxi- 
mum, so it might be worthwhile to 

build larger, more efficient blades, 

-i. 

possibly using a bicwle chain and 
sprockets to spin the stepper faster 
than the blades. There are also much 
larger stepper motors out there, and 
these do show up as surplus from 
time to time. In the past. I've worked 
with steppers that drew over six 
amps per winding. One of these 
could have some real potential for 
use as an alternator. 

For the radio amateur batteries are 
necessary to power the station in emer- 
gency conditions when the grid may 
be down. My emergence station is lo- 
cated in the basement, and consists of 
an elderly but functional Ten-Tec Ar- 
sonaut, handie-talkies for 2 meters and 
CB, a scanner, a small television and a 
portable all-band receiver All this is 
powered from a large marine battery, 
which also feeds a 600- watt inverter to 
provide 120 volts AC. A small relay 
brings the inverter on automatically 
when the power fails. Like many 
hams. I use a small solar panel to keep 




Photo E In a strong wind, the Microwind produced more power 
than expected! 

73 Amateur Radio Today • December 2001 15 




Photo G. This version spans a twse cone made from a plastic 
funnel. 



the backup haltery charged. The 
Micro wind generator is now adding 
wind power to the system. Wind and 
solar complement each other .„ when 
the weather socks in and there's very 
little solar power available, there is 
most often plenty of wind. Under those 
conditions, the Microwind generator 
really shines. 

Sources 

There is nothing sacred about ihe 

mechanical construction of the Micro- 
wind generator ... it evolved into the 
present Configuration because every 



single piece came 
either from my 
junk box or from 
the street corner 
during the local 
Spring Cleanup, 
All the materials, 
including the angle 
iron, pipe, con- 
duit and assorted 
nuts and bolts can 
be found new at 
your local hurd- 
ware store, but 
there's no reason 
not to adapt the 
design to ulili/c 
whatever materi- 
als you can find 
Ivine around. 

The one piece 
that requires some 
fabrication is the 
blade adapter. This 
can be made with hand tools if you're 
careful, since by drilling the piece 
straight through first, then burins it out 
halfway to lit the motor shaft, the two 
ends should be concentric. Still, if vou 
have a friend with a small lathe, this can 
be done more easily and accurately. 

Stepper motors 

The heart of this project is the step- 
per motor. The leftovers I used were 
NEMA 34- frame steppers made by 
Sanyo. The original source for these 
no longer lists them, bul I found a 
good supply when I visited Dean's 



Qty. 


Component 


Digi-Kcy 


Circuit Specialists 


RadioShack.com 


1 


Transistor 




PHP79? 


900-5369 


PN2222-ND 


\ 1 


Regulator 


LM340-15ND 


7815 


900-4504 


5 


Rectifier 


1N40G4GCT-ND 


1 N40D4 


9Q0-2B72 


1 


1 2V Zener 


1 N4742ACT-ND 


1N4742A 


900-3027 


2 


Capacitor 


P5168-MD 


CEM50-0470 


900-1324 


1 


Red LED 


LT1136-ND 


L934HD 


900-6086 


1 


47011 Resistor 


470XBK-ND 


RB470 


900-0371 


1 


1k Resistor 


1.00KXBK-ND 


RB100Q 


900^0379 


T 


3.3k Resistor 


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RG3.3K 


900-0702 


6 


Terminals 


ED1609-3MO 


N/A 


900-4110 


1 


Heal smk 


HS105-ND 


530-613 


910-3263 



Table L Paris list. 

1 6 73 Amateur Radio Today 



,'x 




1 







Photo H. High atop ihe tower* the 
Microwind generator charges the station 
batteries as storm clouds gather in the 

background. The tinx machine can survive 
and produce power in storms that would 
destroy a larger wind generator. 

Hobby CNC Web site. Dean has the 
same Sanyo motor I used, both new 
and used for $35 and $25 respectively. 
Order directly from Dean's Weh site 
[hilp://pla/a. v-wavc.com/deanc/] or 
write to him at Dean's Hobby CNC. 
I122M3I St.. Edmonton. AB. Canada 
T5M IC3. 

If you choose a different motor, be 
sure that it's a bipolar type. Larger, 
more powerful stepper motors are al- 
most always bipolar which means that 
there are two separate, center-tapped 
windings. Small steppers such as those 
used in printers and disk drives are of- 
ten unipolar, having a single winding 
with many taps. These would require a 
different recti Her design, and would in 
any case be too small to be useful as 
alternators. 

Electronic components 

The rectifier and regulator compo- 
nents are very common items available 
from any electronics supplier. I've in- 
cluded part numbers from Digi-Key, 
Circuit Specialists and Radioshaekxorn 
for reference. For some reason, Circuit 
Specialists does not carry the small 
stackable terminal blocks, but they 
have the best prices for everything else 

Continued on page 58 



December 2001 



John R. Endsley, Jr. KD5IDU 
5610 Cerritos Dr. 

Houston TX 77035-2534 
[kd5idu@msn,com] 



Subdivision Subterfuge 

Here s how a Houston homeowner handles his hamming. 



Antenna challenge on a small or difficult lot got you down? Check out this photo essay 
for some handy pointers. 



My solution is a manufactured 
vertical antenna that re 
quires no radials. a home- 
brewed support, and an electrical dis- 
charge system to protect the antenna 
and my rig. Although not a problem in 
our subdivision, it could have "stealth"' 
advantages where needed. As you can 



see, the ability to swing the antenna 
down provides easy tuning and service. 

The support is 10 fecL plus the 
antennas 20 feet Such an antenna is 
usually lop-loaded and gives excellent 
DX and sate [lite operation. My an- 
tenna is an MI-J-1 798 and is tuned for 
75/80 to 2 meters, as specified by the 




Photo A, The vertical antenna by our 
house. 



Photo B, This is the box which sets up 
broadcast or electrical discharge protection. 



manufacturer. I have also found it to be 
effective on 160 meters as well. The 
counterpoise is located at the top, A 
lop-quality SWR meter helps in getting 
good results. 

The antenna is grounded by a heavy 
single-strand copper wire, and may be 
cut off during transmission by an AC 




Photo C A/\ MFJ 'Guardkm Angel" surge 
protector. 

73 Amateur Radio Today « December 2001 17 




Photo D* Antenna swung down for sentce or installation. 




Photo & Switch fmtn (he transceiver to the dtunmy iotktaml the antenna. 





Photo F. Dummy load. 



Photo G* Base of antenna showing Imlun 
and loading coil assembly. 




Photo H> Coax under ground from the 
antenna support to the entry to die house. 




Photo L Coax connected to antenna base, 
18 73 Amateur Radio Today ■ December 2001 



Photo ./, Connection from antenna mast to ground. 




Photo K. Co£lx enters the house. 

CUtoft box. A shorting bar is in place where 
the fuse would he ifil were being use J with 
an AC unit. The station is protected by a 




Photo L KD5iDU*s station setup. 

discharge protector, available lmm dealers 
of Poly Phaser. MFJ, and others. 

There are several verticals thai can serve 
equally well. ( heck out 73 advertisers. 



I plan to replace my home-brew sup- 
port with a 25- to 37-foot crank-up 
Lower when ii becomes available later 
this year. 



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73 Amateur Radio Today • December 2001 19 



Srikanth Bhat VU2SBJ 
37 Ananth Nagar 
Manipal 576119 
India 

[vu2sbj@yahoo.com] 
[http;//www, vuiota.com] 



IOTA 



AS096 



That s St Mary s Island to you . . . 



St. Mary's Island (a constituent pari of the AS096 group of isles) is about 3 km from the 
coast of Malpe in the Udupi district The island is barren, without human inhabitants, 
shelter, or drinking water. About 400 meters by 150 meters in size, the small isle is 
often explored by tourists who visit it for a few hours, usually on weekends when few 
boats offer services from the Malpe coast. 



The boat takes about 25 minutes 
from the Malpe coast to the is 
land. Some boats cannot go all 
the way to the island, and tourists are 
transferred into a smaller boat that will 
go all the way Some other types of 
boats move all the way from the coast 
to the island 

Overnight stay on the island is re- 
stricted by the police authorities of 
the district, Beginning at about 0530 
UTC on Saturday. 5th May, 200 h the 



IOTA (Islands on the Air) station was 
up almost continuously till about 0030 
LTC on Monday, 7th May, 200 L With 

the ten operators who participated, this 
IOTA event operated four stations 
on phone and CW on various bands 
simultaneously. 

Amidst a lot of weather uncertain- 
ties, the IOTA to ASQ96, The St. 
Mary's Island, was a grand success. 
The total count of logged QSOs 
crossed 3,500 in the less than 40 hours 



of effective operating time. Logs are 

still beine sorted out and more stalls- 
tics will soon be available. It is our de- 
sire to QSL every QSO logged, A 
well -planned event by the Manipal and 
the Mangalore hams, the IOTA was the 
first of its kind for all operators who 
participated, Hoping WPC's approval 
will come in on time, which it eventu- 
ally did, other coordinating efforts be- 
gan just a few days prior to the 
scheduled date. 




Photo A. QM Prakash VU2JIX* operating one of the stations on 
AS096, Mur VU2M1T in the background, watches while VU2SBJ 
rakes a break lying on the floor. (Photo by VU2RDQ) 

20 73 Amateur Radio Today ■ December 2001 




Photo B, A view of one of the four stations on AS096. VU2J/X 
operating while SWL Nidhi lies down, (Photo by VU2RDQ) 




Photo C A view of the Diamond CP6 ver- 
tical antenna during sunset in the back- 
grmuul on .45096. (Photo by VU2RDQ) 



The team that took part included 
Manikani VU2JRO, Bhat VU2NJN, Sri 
VU2SBJ. Gopi VU2GPR and VU2MHC 
(MIT Ham Cluh. Manipa!) from Man- 
ipal: and Mur VU2MTT. Chets VU3DMP. 
Pai VU2PAI. Prakash VU2JIX, Rohit 
VU2RDQ. and Sukanya VU2RDJ from 
MangaJore. 

SWL Laxminidhi from Man- ipal and 
two others fn>m the Mangakwe Coast 
Guard also accompanied the team. 

These were the 4 stations we eventu- 
ally set up. 

STATION 1: HF 

RIG: Kenwood TS 850 S 
ANT: 3-element 5-hand yagi, 
Cushcraft MA5B (10/12/15/17/20) 
meters 

CABLE: RG-2 13 
MAST FOR ANT: 1 7 feet 
BATTERY: 1X0 Ah lead acid 
CHARGER: 35 VA solar panel 
SHELTER: Prc-erected hamboo frame 
with woven coconut leaves and tarpaulin. 

OPERATORS: VU2PAI. VU2MTT. 
VU3DMP VU2RDQ 

N.B.: The camp kitchen was also in 
the same shelter — now you know why 
there were so many operators in one 
place! The camp kitchen was operated 
byVU2RDL 

STATION 2: HF 

RIG: Yaesu FT757 

ANT1 : 10m 3-el home-brew yagi 



MAST1: 10 ft. GI pipe 

CABLE: RG-2 13 

ANT2: 15m 2-element home-brew 

yagi 

MAST2: 17 feel AL 

CABLE: RG-2 1 3 

TUNER: Home-brew 

BATTERY: 1 80 Ah lead acid 

CHARGER: 35 VA solar panel 

OPERATORS: VU3DMP. VU2MTT. 
VU2JIX. VU2RDQ 

SHELTER: Home-brew — tarpaulin 
tent with bamboo supports. 

STATION 3: HF 

RIG:IcomIC-751 

ANT1: Fritz 3-band (20/15/10) ver- 
tical antenna with mast in the water 

MAST: 1 2 feet aluminum 

CABLELRG-213 

ANT2: Home-brew G5RV allband 
horizontally supported on coconut 
trees 

CABLE2: RG-58 

TUNER: Home-brew 

BATTERY: 88 Ah lead acid 

CHARGER: 35 VA solar panel 

OPERATORS: VU2SBJ, VU2JRO, 
VU2NJN. VU2GPH. VU2J1X, VU2MTT, 
VU2PAL VU3DMP. VU2RDQ. VU2RDI 

SHELTER: Home-brew — tarpaulin 
tent with bamboo supports. 

STATION 4: HF 

RIG: Icom IO 725 
ANT: Diamond CP6 
MAST: 1 7 ft. aluminum 
CABLH: RG2I3 
BATTERY: 1 80 Ah lead acid 
CHARGER: 35 VA solar panel 
OPERATOR: VU2MTT 
SHELTER: Commercial dome tent 

Logistics 

This should give an idea of the enor- 
mous amount of luggage thai was car- 
ried. The 6 lead acid batteries (2 
extras) probably were the bulkiest 
items. A very useful sledge prepared 
by VU2RDQ was a boon to move the 
batteries, About 250 liters of drinking 
water, and another 50 liters for "other" 
purposes, came second in line in terms 
of bulk. Tarpaulins, bamboo staves for 
tents, aluminum masts, radio equip- 
ment, and antenna* came in next. Due 




Photo />. Unloading the stuff from the bout 
to the island, it took a good 40 minutes to 
get all the stuff out. (Photo by VU2RDQ) 



to indications of rain, adequate water 
proofing for equipment (worth our life 
for most of us), utensils for cooking, 
and food were the other components of 
the luggage that was carried. 

Rain and a flat tire delayed our start 
by about 60 minutes. Eventually, after 
a quick breakfast specially arranged by 
VU2NJN aL the wee hours of the 
morning at a hotel in Udupi, we 
reached Malpe and began unloading 
stuff from a mini truck and 3 other cars 
at about 7:45 a.m. (Saturday. 5th May). 

It took about 30 minutes to load the 
boat, and a similar amount of time to 
unload after about 25 minutes of travel 
in the sea. It was drizzling and the sky 
was dark, so you can imagine the un- 
certainty in our minds. Fortunately, it 
was not windy, The boat people refuse 
to travel if it is windy. 

After we landed on the island and 
unloaded all the stuff by using a hu- 
man chain, it took us about 4 hours to 
get most of the things in place and to 
set up 2 stations on the island. Fortu- 
nately it stopped raining. (Later the 
temperature went up to as high as 42 




Photo E, Setting up the Cushcraft MA5B 
for one of the stations. Seen in the picture 
are (left id right) VU2PAI, VU2JRO (face 
not seen I VU2NJN. VU2MTT (on the 
chair), VU2JIX, SWL Nidhi. (Photo by 
VU2RDQ) 

73 Amateur Radio Today ■ December 2001 21 




-.? 




Photo R A vb 1 of the AS096. St. Mary's Island. This picture was 
used on the QSL card, too. (Photo by VU2SBJ) 



Photo a The entire AS096 team. Left to right: VU2MTT, 
VU2PAL VU3DMP VU2JIX, SWL Nidhi. VU2NJN, VU2SBJ, 
VU2GPH, VU2JRO, VU2RDJ, VU2RDQ. (Photo by self-timer) 



degrees C) We were the only people 
on the island then* 

The third and the fourth station came 
up subsequently. A very useful lip 
from K2KW encouraged us to install 
ai least one vertical with the mast right 
in the sea water You have got to see to 
believe how dramatically it improves 
the performance of the antenna. It was 
comparable to that of the other beams 
that were erected. For more details on 



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Tel & Fax: 44 1297 62 56 90 




i : 







the special performance of verticals in 
sail water, visit [http://www.k2kw, 

com/k5k/dxcomp.htm]_ 
The propagation condition from St. 

Mary's Island was moderate overall 

with solar flux showing 165 points on 

Saturday and 160 points on Sunday. 

The peak was showing a downtrend in 

the coming days. 
Ten meters was good on 5lh May during 

the 12:00Z to 15;00Z with a huge pilcup, 

usually from Eu- 
rope, There were 
stations from N, 
America, S, Am- 
erica, JA T VKs 
coming through 
pretty welL The 
condition on 15 
meters was ex- 
ceptionally good 
and the pileup 
from Europe was 
tremendous dur- 
ing 17:00Z to 
20:00Z. Also, some 
stations from N. 
Anieri ca/S. Am- 
erica were strong 
on 15 meters. The 
20/17/12 meter 
band was not en- 
couratzins on 5th 
May, but we could 
log maximum sta- 
tions during the 
peak lime on 12 
meters on 6th 
May, 20 meters 
improved on 6th 
May with stations 
from Europe, N. 




America, S, America coming through 
pretty well 17 meters was quite mod- 
erate. We did our best to log maximum 
QSOs with optimum band propagation 
and minimum operating time. 

We stopped operations early in the 
morning on the 7th (Monday), The 
specially hired boat was to pick us up 
at 7 a.m. It arrived dot on time. We 
were almost done with disassembling 
all the stations and the other stuff. It*s 
amazing how much less time it takes 
to pull down a station as compared to 
setting it up! It took us less than 90 
minutes to get all the stuff back to one 
place. We reached the shore of Malpe 
at about 9 a.m. A promisingly busy day 
at work for each of us looked certain. 
Nevertheless, it was worth every 
minute of the fun we had on AS096. 

The small effort to publicize the 
IOTA event on the Web paid off well. 
Though the event was confirmed just a 
few days prior to the event after 
WPC's letters came in, the good re- 
sponse on the band made all efforts to- 
wards our maiden IOTA very 
worthwhile. 



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22 73 Amateur Radio Today ■ December 2001 



George E. Johnson NOGJ 
21 Main St. 
Agenda KS 66930 



Bare Bones Battery Booster 

A good project — as long as you understand the dangers and limitations. 



Back in the mid-1970s, I came across a circuit lor a very simple constant current 
charger which was a capacitor in scries with one side of the AC power line to a bridge 
rectifier with the output of the bridge going to the battery terminals. The capacitor 
value limited the AC current by its reactance value. I made mine to pass around 40 mA. 
I used it for several years without an isolation transformer. They are not cheap. 



F% ceently I decided lo change the 
r design a little and not only 
,m.make it sale but also give four 
differ en l current outputs lor batter ies 
with different ampere-hour ratings. A 
ten percent charge rate is standard and 
will not damage a battery if left on 
charge for over 1 2 hours, 

I had all the parts on hand in my 
junk box supply. There are just a few 
parts needed and it is a good project to 
do in your spare time. You can make 
your own layout and customize it to 



\our needs, One neat thing about this 
charger is that you can short the output 
leads and the current will still be lim- 
ited. I used a surplus 0-150 mA meter 
mounted on the project box to show 
the actual current. You don't need the 
meter, but you should mount a couple 
of test lead jacks on the box to use 
your VOM current function lo watch 
the current when trying different ca- 
pacitors. Leave the output shorted while 
testing capacitors. After selection, you 
may replace the VOM with a jumper if 



desired. Also, you may want lo add a 

power switch and an indicator light. 

The battery voltage under charge is 
not important as long as il is under 20 
volts. The charging current is impor- 
tant The charger output voltage drops 
to the battery level during charge un- 
less the battery has an open cell, in 
which case no current will How, Open 
circuit voltage is about 25 volts. Use 
Mylar capacitors with a voltage rating 
of at least 200 volts DC Have fun. 
NOG J, 



£> 




. 



t 



0.33uF 



O 



0.47uF 

I 



O- 



l 



1.0uF 



"I.OuF 



f 



f 



30mA 



T1 



9 



55mA 



100mA 



30mA 




12. 6 VAC 



12 6VAC 



0-1 50mA 





EVEN THOUGH THEY WERE MARKED 1uF. 
THE VALUES WERE NOT THE SAME. 



T1 IS RADIO SHACK 273-1 366A 
DIODE BRIDGE IS 276-1152 



Fig. I. Battery booster circuit. 



>> 



BAT 



>> 



73 Amateur Radio Today * December 2001 23 



73 Review 



Ken Glanzer K7GCO 
202 S. 124th 

Seattle WA 98168 



RF Inferno 

Meet the new Raibeani antennas. 






It '$ the beam of the future and it can he on your tower today. This amazing new design 
is the development of Chuck Smith WA7RAI, who "just wanted to he competitive while 
DXing from a small city lot. " 



Dick Adeock W4GL was the earli- 
est pioneer of this, in ihe lale 
*4()s. wiih a 3-clemenl all-driven array 
that he advertised in QST for one 
month. Robert Marline/ W6PU was a 
pioneer in 1980 wilh dual-driven quads. 
which he introduced lo the amateur ra- 
dio community via an article in the 



December 1983 issue of CQ. He is still 
using this beam and it has no competi- 
tion. Al Latin K3ZO followed up about 
a year later wilh an article in CQ, try- 
ing to prove W6PU wrong, and 
couldn't. K3ZO is a contest winner 
wilh his version. Antenna Mart has a 
version of this quad also. All driven 




Photo A. The 2x2 -element and 5-elemeni Raiheams came neatly wrapped in one box. 
One 2-etemem is unwrapped. The hag of hardware and fools I added are shown. These 
were assembled and installed in one afternoon. 

24 73 Amateur Radio Today • December 2001 



elements up to about three or four and 
then "parasitic elements/' appear to be 
the siate-of-the-ari. Even jusi two 
driven elements kick a lot of butt. 

What makes this design so different? 
The typical yagi has a single dipole 
driven element (DK) that accepts 
power from ihe feed I inc. A di pole's 
free space pattern is donut-shaped with 
a gain of approximately 2.2 dB as ref- 
erenced lo a theoretical isotropic source 
Uhis gain is expressed as dBiK Thus 
2.2 dBi is generally accepted as a dB 
reference tor all antennas where their 
gain is expressed as lIBlL In the case of 
the yagi, the driven element excites 
one or more parasitic elements, i.e.. re- 
flector and/or director(s), that change 
the doiuit pattern into a cardioid pat- 
tern, wilh its main lobe extending for- 
ward and a null towards the rear (the 
difference between these two extremes 
is expressed as the front to back ratio. 
F/B). Parasitic elements, to be effec- 
tive, musl be a certain length and spac- 
ing — the specifics being dependent 
upon their function. Yagis have been 
the standard beam antenna for years, 
but they must rely solely on parasitic 
elements that absorb and re-radiate 
RF energy, to affect and reinforce the 






radiation of enenjv from the DE in the 
desired manner. Yagis <and quads), do 
a great job bin all parasitic arrays of 
this type have limitations regarding 
maximum gain and best possible pat- 
tern, not to mention that their maxi- 
mum gain and best F/B cannot occur 
simultaneously, The reflector and di- 
rectors are "parasites on RF welfare/' 
hence the name "parasitics." 

A phased 2-element beam called the 
"*ZL Special" was featured in a series 
of articles in the NZART (New Zea- 
land Association of Radio Transmit- 
ters J publication, Break //j, in the late 
1940s. This beam was constructed us- 
ing lubular folded dipole elements at a 
spacing of 0. 1 25 wavelength, and de- 
spile numerous phasing line varia- 
tions, it remained somewhat quirk v 
and difficult to match to a feedline. 
Despite these difficulties, one of the 
versions worked quite well — actually, 
very well. I played with thai myself in 
1953. Obtaining the proper current 
distribution by employing a phasing 
line of the right length and impedance 
can be a very tricky procedure — and 
successful results have evaded many 
who tried. A Swiss ham later devel- 
oped a somewhat successful plumber's 
delight version of it known as the 
"HB9CV/' 

In the 19KIX Chuck, after using and 
studying the ZL Special, began devel- 
oping his own improvements which 
utilized closer-than-normal element 
spacing, increased phasing line de- 
lay, and a means lo properly termi- 
nate the phase/delay line into each 
element. Since the impedance of both 
elements are fairly low due to their 
high degree of mutual coupling, the 
current flowing in them is quile high. 
Chuck soon developed a unique ele- 
ment bracket designed specifically to 
reduce high-current losses. 

The Raibeam's driven element spac- 
ing is about 0J wavelength, which is 
much closer than the typical 0.125 
wavelength or greater that is generally 
used with I SO degree phased elements. 
Al this closer spacing, and higher de- 
gree of coupling, the driven elements 
can become — under certain sets of con- 
ditions — critically coupled, a state in 
which their currents become equal in 




Photo B* The 6m 5-element Raibeam above the 2x2 phase-stacked vertically polarized 
Rai beams* 



amplitude. Chuck has a patent on this 
unique design as it uses this critical 
coupling to an advantage, resulting in 

increased gain and a better overall 
pattern (excellent F/B). 

Upon realizing that he had also de- 
veloped an ideal "engine" for a re- 
flectories* beam. Chuck soon married 
hi% design to parasitic directors. In 1995, 
he formed a companv called Raibeam 
and then started selling mon- oband 
beams for HF and 6m. h wasn't long 
before he discovered the best way to 
interlace the drivers, and thus his [ri- 
band and dual-band beams were born. 
The 2-element tribander weighs 36 
pounds and the dual-bander weighs 2N 
pounds. Rai- beam has up to 4 ele- 
ments on 20-1 Om. The 2 driven ele- 
ments/ "gain cell," as I call it. have an 



RF running siart with gain and F/B be- 
fore directors are added for more gain 
and the F/B is retained This is not so 
with a yagi DE, where its dipole verti- 
cal pattern is a circle with "0" gain. 

After hearing a lot of good things 
about these beams. I decided to see for 
myself if there was anything to it. 1 
should mention that I was also eager to 
experiment with stacking the 2-element 
ones. And, yes, I did pay lull price for 
them, and on a retirement income as 

well. 

All 3-6m beams came neatly 
wrapped in plastic wrap. After check- 
ing the packing lists for missing parts 
(there were none), their assembly was 
easy and straightforward. I was able 
to assemble all three beams in one 
afternoon. Their light weight allowed 
73 Amateur Radio Today * December 2001 25 





Photo C 2-element 6m Raibeam. Both elements are driven, have very good patterns, 
u eigh just 3 pounds each. 

me to install the beams all by myself in platform on the lower that allows me to 
a very short Lime, although I do have do antenna work very quickly. Having 
the advantage of a very useful wooden close to 60 years of tower experience 

does tend to help 
— hi! 

There were no 
compromises in 
the quality of the 
materials and con- 
struction of all 
three beams de- 
spite their case of 
assembly. I was 
impressed to see 
that an element 
tubing thickness 
of 0-058" was 
also used for the 
0.625 " diameter 
tips* The boom-to- 
element mounts are 
machined from 
thick aluminum 
flats that clamp 
on the boom, then 
secured with hoih 
a clamping bolt 
and pointed set 
screws. Each ele- 
ment sits in a 

Photo 0. 5- over 2-elemeru 6m Raibeams with I/2-\vave vertical finel > millctl sati " 

on top used as a listening antenna. These two beams can he se- "* e ant * ls S^u^u 

lected individually or both together in phase. Various con- by lw0 bolls. 

figurations are being fried to obtain different angles of radiation in- Tubing clamps are 

tin hhurfi\ or phased together, or differences in polarization to create used at the tele- 

different angles of radiation to compensate for polarization shift. scoped tubing 
26 73 Amateur Radio Today ■ December 2001 



joints (all hardware is stainless steel), 
and a thick aluminum mast-to-boom 
plate is included. Conductive grease is 
also supplied for the element joints to 
prevent corrosion, and for coaling the 
threads of the stainless steel bolts. 
nuts, hose clamps, and U-bolts to pre- 
vent seizing. It's obvious that these 
beams were designed to lake a lot of 
ice loading, very strong wind, and 
should he able to stay up for a long 
time without the need of maintenance. 

The 5-eIement 6m beam is on a 
23.5-ft. boom (1.125 wavelength), and 
from on-air tests. 1 have concluded 
that its pattern is sharper than the 
7 -element I once had with a 0.15 
wavelength longer boom. Thai caught my 
immediate attention! I found it some- 
times necessity to ask exactly where a 
local 6m station was located, If I were 
just 30 degrees off, Fd lose them in the 
noise. I use speeded up prop pitch mo- 
tors as rotators to turn mv beams, and 
the sudden signal strength change ei- 
ther way was dramatic. One station ob- 
served the sudden increase when I 
spun the beam on him and said 
"WOW! It was just like you'd sud- 
denly moved down the street from 
me.* 1 With my previous 5-element 6m 
yagi — on a 1 6- ft. boom — I didn't 
have this effect at alL I can now hear 
differences in band noise as I rotate the 
beam, which I didn't hear before. It's 
not unusual to get 40-60 dB over S-9 
reports in Seattle with just 100 W now. 

The 2 -element Raibeam weighs just 
3 pounds and is on a 2.1 -ft. boom, 
making them ideal for limited installa- 
tions, I have both of the 2-element 
6m beams vertiealh pulan/ed, and 
slacked in phase on a horizontal fiber- 
glass boom 10 feel below the 5-cle- 
ment horizontal beam. The short boom 
2-element beams need only about 1/2- 
wave spacing for a 2.9 dB (maximum) 
additional stacking gain. 

Vertically polarized beams will 
generally give a lower angle of radia- 
tion than a horizontal one at the same 
height, but I wanted to determine if the 
wide horizontal pattern, typical of 2- 
e lenient beams, would perhaps he ben- 
eficial by filling the holes or areas not 
covered by the various It the angles 
typical of a single horizontal antenna 



thai is several wavelengths above 
ground. 

Another reason I wished to experi- 
ment with the 2x2 vertical array is that 
I have heard stations using horizon- 
tally stacked vertically polarized 
beams on 6m where the user claimed 
great success with them. Since they 
didn't have a horizontal reference 
beam, it couldn't be determined if a 
real advantage (or disadvantage) over 
a horizontally polarized beam at the 
same height did exist. 

Another big advantage when 
switching to the vertically polarized 
beams is often the reduction of QSB 
due to polarization shift You are at 
the mercy of it with only one polar- 
ization. This concept is applicable on 
1.8-445 MHz and few use it — I 
sure do, 

1 have been able to run a few com- 
parison tests, but so far, I've seen too 
few and no long openings to really 
come up with any real definitive data. 
Preliminary results suggest that the 
vertically polarized 2v2 array appears 
to have similar receive abilities when 
compared to the horizontal 5-element 
beam, but the horizontal 5-element 
beam was superior on transmit most 
of the time so far, more than the gain 
difference. Further tests may provide 
enough information to verify this phe- 
nomenon and perhaps find an explana- 
tion as to why this may be so, 1 will be 
using higher-gain beams vertically 
polarized. 

In conclusion, the Raiheam's gain. 
F/B, and front-to-side ratios are very 
good. Maximum gain and F/B are I 
never obtained simultaneously with 
yagis and quads, but there is ample 
evidence to suggest, that with the 
Raiheam's critically coupled driven el- 
ements, this is not only possible, it is 
more than likely the case. The 5-ele- 
ment 6m Raibeam has the best gain 
and F/B/Side of any antenna I've ever 
used in over 60 years of using 
beams. I found that with only 100 W 
I have a lot of "RF clout." If and 
when I didn't get a station on the 
first call, I would check and see if it 
was pointed at them, and in most 
cases, it wasn't. 



When the hand was open, there 
would be a lot of other local stations 
working the opening before and after 
me — which is normal. But what 
wasn't normal was when the band was 
about dead — I could still be working 
the weak stations, but no other local 
stations would be calling them. This 
happens routinely which implies that 
the other locals just aren't hearing 
them. Surprisingly, I have ;ilsn 
worked scatter — over the Cascade 
Mountains into Yakima — KC7FFK. 
When a friend calls you on the phone 
to verify that you are really in con- 
tact with a station — and not faking 
it — it is a tip-off of very good antenna 
performance! 

I can certainly believe Raiheam's 
claim of higher gain and lower noise 
reception. The matching arms are "DC 
shorts" across the feedpoints, which is 
not the case with a gamma and its se- 
ries capacitor. There is nothing that 
will get a sally old antenna man more 
excited than a new design thai has 
features and performance that the 

others don't! 

1 highly recommend this superb line 
of antennas [Raibeam, 5658 W. Alice, 
Glendale AZ 85302; 1 (800) 530- 
1913], 

If you'd like to know more about 
them, check out their excellent Web 
site at [http://www.raibeam.com], 

One photo shows the 6m 5-element 
Raibeam above the 2x2 phase-stacked 
vertically polarized Raibeams. I can 
select either or both in phase. On top is 
a 1/2- wave vertical antenna I use for 
monitoring the call frequencies of 



50.110, 50.125 MHz* and beacon ac- 
tivity. A "monitoring antenna" is even 
more of a necessity using beams with 
very good F/B/Side on any band. In 
the near future, I plan on experiment- 
ing with slacked halos on top for 
monitoring also. 

Get a Raibeam and create your own 
^bragging rights"! 



Say you saw it in 73! 



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73 Amateur Hadio Today ■ December 2001 27 



Parker R, Cope W2GOM/7 
8040 E, Tranquil Blvd. 
Prescott Valley AZ 86314 
[pamaco@mwaz.com] 



VOM Primer 

This overview is helpful for beginners and old-timers alike. 



The VOM, volt-ohm-milliammeter, is the workhorse of the electronic workbench. How 
it works and why it works isn 't important as long as it works. But the how and why are 
important if we are to know its limitations. 



he galvanometer is the core of 
the instrument. Its the thing 
that indicate vs hat's being 
measured. The galvanometer's opera- 
lion depends on the forces applied to 
conductors in a magnetic field. In the 
usual form, a coil of wire with a 
pointer attached is suspended in a 
magnetic field and a current is estab- 
lished in the coil: The forces thus pro- 
duced on the coil deflect it from its 
position of rest and the amount of de- 
flection serves as a measure of the cur- 
rent in the coil. This is the operating 
principle of the d'Arsonval galvanom- 
eter (named after the French physicist, 
Arsene d'Arsonval) used in the mea- 
surement of small currents, as well as 
most voltmeters and ohmmeters* 

Meters are rated by the current 
needed to produce their lull scale de- 
flection. For example, a 1 mA meter will 
have full scale deflection when the 
current in the meter is I mA; a 50 |iA 
meter will have full scale deflection 
when the current in the meter is 50 \iA. 
The basic meter is a coil placed in 
the field of a permanent magnet. The 
coil is held at rest with a small spring 
and a needle is attached to the coil to 
sweep the needle across the meter face 

28 73 Amateur Radio Today • December 2001 



to indicate the current in the coil. The 
coil is free to rotate in the magnetic 
field. 

The magnetic field can he disturbed 
by nearby magnets or even magnetic 
material and affect the readings. Most 
meters, but not all, are shielded to iso- 
late them from their surroundings. 

There are many ways to abuse a 
meter: Mechanical shocks can dislodge 
the coil from its hearings, Strong over- 
loads can bend the needle at the peg. 
Meiers with hent needles are not un- 
common. I have seen meters that have 
been overloaded until the coil's insula- 
tion has smoked. The faces are Uien 
tan with black numbers. 

Most meters have a short across 
their terminals when they are not in 
use. The short across the meter damps 
out the effects of sudden movement of 
the meter If the coil is moved with re- 
spect to the magnet, a current is in- 
duced in the coil and a counterforce is 
produced. The short is not intended to 
protect against stray voltages that might 
be encountered. 

An unknown meter can be mechani- 
cally tested by rotating it in the plane 
of the meter face. If the needle moves, 
the coil (form) is in its bearings, and if 



it returns to rest immediately, the coil 
is probably intact. Of course this kind 
of test doesn't tell anvthimi about the 
electrical condition of the meter, only 
the mechanical. 

Two characteristics of a basic meter 
are the resistance of the coil and the 
current required for full scale deflec- 
tion. As you might guess, the resis- 
tance of the movement differs for 
different sensitivities. Typically the 
voltage across the coil is either 25 mV 
or 50 mV. Most 1 mA movements are 
about 25 or 30 ohms. More sensitive 
movements have a resistance in the 
range of 1,000 or 2,000 ohms. The 
current is the critical factor 

To make an ammeter requires a 
shunt across the basic meter. For this, 

the meter's resistance R must be 

in 

known. If it is required to increase the 
full scale deflection from 1 mA to 10 
mA, a 9 mA shunt must be placed 
across the meter The voltage across 
the meter and across the shunt is R x I . , 
The current in the shunt is R x I TRs. 

m is 

The ratio of the shunt resistance to 
meter resistance is R /R = I /I . A 30- 
ohm R and a 1 mA movement needs a 

in 

3.33311 shunt to increase the full scale 
deflection to 10mA. 



Rm 




AA/V 



Eunk _=. 





I -Eunk 



Rm 



(a) 



Runk 





l = E 



Runk 



(b) 



Fig. L (a) A current meter can measure voltage, (b) A current 
meter can measure resistance. 



The unavoidable voltage drop across 
the meter is a limitation in very low 
current or very sensitive measurements. 
Usually we ignore the voltage drop 
across the current meter and ignore the 
few millivolts dropped across the meter. 
Bui the limitation should he recognized 
and evaluated for the particular case, 

To make a voltmeter, a multiplier re- 
sistance is placed in series with the 
movement to limit the current A mul- 
tiplier resistance of 3k would limit the 
current from a 3-voll source to 1 mA, 
A multiplier resistance of 60k would 
limit the current from a 3-volt source 
to 50 |iA, The sensitivity of a voltme- 
ter is often expressed in terms of ohms 
per volt. 

The ohms per volt is just the recipro- 
cal of the full scale meter current. A 
voltmeter with a 1 mA movement has 
a sensitivity of Ik ohms per volt and 
on a 3- volt scale loads the circuit un- 
der test with 3k. A 50 \iA movement 
has a sensitivity of 20k ohms per volt 
and a 3-volt scale loads the circuit with 
60k- Most voltmeters indicate the 
ohms per volt on the face of the meter. 
We often ignore the loading imposed 
by the voltmeter, but the extra loading 
can upset a high impedance circuit. 
The meter's sensitivity indicates the 
loading that can be expected. For ex- 
ample, a 20k ohms per volt meter on 
the 100-volt scale loads the circuit 
with 2 megohms, but on the 3-volt 
scale the loading is 60k. 



White the meter 
indicates current 
the scale can be 
calibrated in any- 
thing from VUs to 
inches of water. So 
don't be put off 
by the scale; the 
meter works the 
same. It measures 
a current. 

To make an 
ohmmeter requires 
a current meter 
and a known volt- 
age of some sort; 
a single dry cell 
of 1.5 volts is fine 
for lower resis- 
tances, but 9- volt 
or even 30-voli 
batteries are used in some instruments. 
The voltage is applied to the unknown 
resistor and the current measured. The 
unknown resistance is E/I A . „ 

indicated 

Since the ohmmetcr's battery volt- 
age changes with use and lime, a ze- 
roing pot is included to set the full 
scale deflection. The pot is adjusted 
so the meter indicates full scale when 
the leads are shorted (the unknown 
resistance is zero). 

Most VOMs also read AC volts. To 

Continued on page 59 



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73 Amateur Radio Today • December 2001 29 



Francis (Frank) Kelson HL1/N8HI 

PSC 450 Box 826 

APO AP 96206 

USA 

[qrpdx @ korea.com] 



Ye Olde Fishpole Vertical 

Some things never change — thankfully* 



Recently I have noticed the quest for portable antennas among our QRPers, and I remember 
the many times when I was in a situation where a sky wire couldn't be tolerated. 



Over the years I have used small 
portable antennas, mini loops, 
helieoids. and hotel room win- 
dow frames. All worked for me reason- 
ably well, hut I notice the trend these 
days is more for hiking into the hidden 
valleys, mountains, and personal 
Shangri-Lu's. 

I've been an amateur radio operator 
tor a number of vears now, and I've 

m 

experimented with helieoids. end fed 
dipoles. and Vertical Radiating Di- 
poles (VRI)i. which I have found 




Photo A. Frank in the Sierra Nevadas* working DX with a simple 
portable vertical. 

32 73 Amateur Radio Today * December 2001 



worked quite good from earth ground. 
but not from on top of buildings, I fig- 
ured that I could come up with a small 
package that should perform reason- 
ably well under the above conditions, 

1 knew that an antenna requires ca- 
pacitance and inductance. From the 
formulas contained within the ARtiL 
Handbook I also knew that it wouldn't 
lake very much to accomplish an ex- 
tremely small antenna whose weight 
would be ideal for backpacking. Expe- 
rience gained by the use of fiberglass 

components — 
fishing poles — 
for rot utable di- 
poles and two-el- 
ement beams made 
me yank out my 
irusly old note- 
book, and peruse 
through the hun- 
dreds of schemat- 
ics and antenna 
designs that I 
have* 

Suddenly my at- 
tention was fo- 
cused on a mini 
20-meter iwo~elc- 
ment beam. It was 
quite efficient. 



although the beam pattern was quite 
narrow, making the use of a rotator a 
necessity. Once the other station's sig- 
nal was peaked up. it was no problem 
making a contact with 1 through 5 watts 
of RF power. 

I also realized that I stumbled upon 
this design by first constructing one el- 
ement and making it resonate to my 
frequency of choice, before making 
the other three elements. Armed with 
that data, it didn't take me but a few 
minutes to construct a vertical that 
could be collapsed down to a 28-inch 
package, and weighed in at just a few 
ounces. 

This is one that could be used from a 
canoe or rowboat, held up by elainps, 
and with the radials running around 
the gunnels. Don't forget the Jolly 
Roger. Or from a hotel balcony, and — 
yes — from the fender of your vehicle 
if thai is how you are backpacking. 
One that wouldn't attract the attention 
of the local Park Ranger, who more 
than likely will be thumbing through 
his handbook looking for a clause that 
mentions something about potential 
lightning hazards. You could even slip 
this antenna into a PVC tube with a 
mock wooden TV antenna at the top. 



Tor oid Z 5Uh T50-6 Yellow 
25T#22EnCW 



Ajtfama 



wire 



^ 



68^/2' 



# 



50-1/4' 



L Bracket w/BNC Coaxal Isolator 

;cc text 

51G8XX 



J 



CM 



*3C 



60^3/4 M 



Coil Option 

5X5Ti 
— <-UUU— 



^ — Fly Rod 



Metal or Plastic hose damp 



50- 1/4 " 



32T #22 insulated wire on a 7/8" 
dam form 4 * lopg wound for 3 5' 



h Braclcet 

fL J\ 

2" wide 



2 5' long 



O/ 



« 



liit a 1/4' slot eater side, brad to 
conform to the fly rod handle 



Fig. L Simple QRP vertical. 

and use it as a vertical dipole. Don't 
forgei to silver-paini the tiny UHF TV 
antenna. 

The fly rod that i now have has been 
painted with camouflage green paint, 
and a good coat of varnish for a special 
application. It is now almost invisible 
in the bush. 

The schematic shows that the an- 
tenna wire uses a fly rod to maintain 
its integrity. Simple fly rods that are 1 1 
or 12 feet in length are rather cheap 
these days. Deviating from the norm of 
using air core coils, I used a simple 
ring core, which fits on the rod's frame 
rather nicely, and is quite small and 
easy to slide off for removal when you 
fold up the fly rod. When winding a 
ring core, make sure that you wind it 



lor only 80% of the ring; if that is not 
feasible, then you would have lo go to 
the next larger core, or use a smaller* 
diameter wire. Right! If there are any 
doubts about these devices, please re* 
fer to Chapter 6 of the ARRL Hand- 
book and scroll down for the area of 
interest. 

I used the yeUow core series since I 
have them on hand. Generally these are 
not ideal for wideband applications, but 
they are suitable for our needs in the 
area of from 2 to 50 MHz, with the 6 
material being more temperature-stable. 

If anything, I hope that this will stimu- 
late your interest for further research 
and experimentation. There is no telling 

Continued on page 34 



(Using the vertical without radials 



ClFJCType250Pf 



Hose clamp 



Wire element 




Alligator clip see text 



L Bracket 



BNC Connector 



- Coax to Isolator 
see text 



Fig. 2, Using QRP vertical without radials. 



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73 Amateur Radio Today • December 2001 33 



Ye Olde Fishpole Vertical 

continued from page 33 

what you may come up with, and I will 
be looking forward to your articles. 

An option for an airwound coil is 
also provided. You can accomplish this 
by using PVC pipe 4" long by 7/8" di- 
ameter. Close-wind 32 turns of #24 in- 
sulated audio wire for 3.5 inches, 
approximating 5 jiH; shim or glue into 
place. The coil wire and element wire 
in this case can be one continuous 
piece. 

Constructing these antennas indoors 
is fine T but adjust them outdoors. Go 
out in the yard or to a city park, and 
prune for resonance. Make sure that you 
are not above a sewer pipe, or beneath 
power lines. 



The lengths indicated in the sche- 
matics may put you well below 14 
MHz, perhaps more like 13 or so. Just 
prune the lip 1/4 inch at a time, and 
you will find that your resonance point 
will simply pin the analyzer meter 
clear down to zero. Don't cut any ex- 
cess from the fly rod — you may want 
to try something else later. 

Make sure that you make an isolator 
out of the coax. This is done by curling 
a six-inch diameter coil composed of 6 
turns at the base of the antenna, and 
tie-wrapping it in place. This will iso- 
late the line from the antenna. This is 
very important* especially when using 
from a balcony or permanent site- 

I usually don't snip any wire, I just 
curl it up into a small ball, and tape or 
rubber band it in place. Rule of thumb 



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with all antennas: The higher up in the 
clear, the elements will be longer. 
Closer to ground or metal the shorter 
the elements will be. 

You will find that tuning under the 
most severe conditions, like on a bal- 
cony surrounded by a metal railing, 
and being close to a wall, will make 
the resonance points of the elements 
shorter. The tip, around 44 inches, and 
the radial, 158 inches. So when em- 
barking on a field trip less all the close 
density factors, then you will tune it up 
for resonance for its particular envi- 
ronment. That's why I say don't cut 
the elements, just roll Ihem up, or just 
tune for resonance in the field, and 
leave the elements for that type of 
situation, 

I mated the handle of the pole with a 
3-foot piece of PVC pipe, and ex* 
tended the radials out in GP fashion, 
using plastic tent stakes to hold them 
in place. Another alternative is to use a 
small camera tripod. I prefer to use a 
metal stake in the bottom of the PVC 
so that it can be forced into the earth, 
usually at about a 30-degree angle 
with the tip of the fly rod pointed in 
the direction of choice. It seems to me 
that an end (Ire is accomplished with 
these little antennas, that is, when the 
radials are placed 180 degrees from 
the tilt, and my first contact like this, 
as I recall, was a contact between 
Hawaii, and Seoul, Korea with only 
5 watts. 

On one model I used a car whip an- 
tenna for the tip element, but of course 
on a heavier model fly rod that permit- 
ted me to adjust the length of the whip 
for resonance, and even allowed tun- 
ing up to 15 meters. Radio Shack now 
has these in a 72-inch length. Wish that 
I had a couple of them while experi- 
menting for my helicoid article back in 
May '94 for 73. This method also can 
be prearranged with the wire element, 
by marking a spot on the fly rod, sim- 
ply coiling the wire up with two fin- 
gers, and holding it in place with a 
rubber band. Yes! Coiling the wire up 
nulls out the last resonance point, and 
permits selecting another resonant 
point — no need to snip! 

If the acquisition of a fly rod is a 
problem, just tie a piece of fishing line 



34 73 Amateur Radio Today * December 2001 



on ihc tip, and hoist it up on a bush. 
Till the bottom end for a direction, and 
be sure that it is not so high as to per* 
mil the proper placement of the radials 
on the ground or on stakes. 

Portable operations arc mainly being 
at the right place at the right time* te- 
nacity, and the ability to listen through 
the noise level for those elusive dis- 
tance stations, which will bring you 
your fair share of the prize, My old 
logs are full of contacts with stations 
using weak signal applications and 
ham sticks, window frames, or a wine 
thrown out the window- 
Using the vertical without radials 

CI is a receiver variable capacitor. 
Fig. 2, The one that 1 used was 250Pf, 
about 2 inches long by 1 1/4 inch wide, 
I mounted it within a pill bottle, then 
attached two short leads with alligator 
clips on them. One goes to the cap's 
hot side, and the other goes to the cap's 
ground side. The pill bottle containing 
the variable cap can he held in place 
with a plastic hose clamp. 

The antenna is placed in it's area for 
operation. With the long radials, deter- 
mine the tip end element of the fly rod 
for resonance. When resonance is ac- 
complished disconnect the long radi- 
als, and connect the alligator clip from 
the ground side to the L bracket radial 
ground screw. Now connect the hot 
end of the cap with ihe clip to perhaps 
a radiator, balustrade roof ladder, or 
even a vehicle ground. 



Part 


Description 


Ugrttweight fly rod 


At teast 1 1 feet long 


Toroidal core 


Yellow, T50-6 


Dual insulated audio cable 


20 feet #24 


Enamel wire 


2 feet #22 


Option air core coil 


4* x 7/a 1 PVC 


Connector 


BNC or PL-259 


Mini coax, part of haiun 


25 feet RG-6X 


Angle bracket aJuminum 


Scrap, cut to schematic 
specs 


Vanaflte receiver-^ype 

capacitor 


250 pF. see text 


Knob 


For capacitor 


Alligator dips 


2 each 


Patience & tenacity 


1 gallon 



Table L Parts list. 



You could start from scratch by just 
connecting CI to a ground, and by re- 
ducing tip length, and CI adjustment to 
obtain a resonance point, but the method 
in the paragraph above is much easier. 

This will eliminate the lengthy radi- 
als on the apartment floor, or tor any 
semi permanent location. 



I used a 4 foot length of insulated 
wire to connect to a 20 foot spiral 
stairwell. Connect the rig end of the 
coax to an MFJ analyzer, then adjust 
CI for a good healthy dip, then per- 
haps a slight adjustment of CI when 

Cortiinu&d on page 59 



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73 Amateur Radio Today • December 2001 35 



Carl Herbert AA2JZ 
43 South Plank Rd. 
Newburgh NY 12550 
[chcraft97@aol.com] 



The Builder's Dozen 

Uncommon uses for common stuff, 



During my tenure as a u ham operator/builder," I've been able to construct many 
projects, some of which would have required expensive shop tools, equipment, etc., 
which I don't have and haven f t the resources to buy. By using the common objects 
surrounding all of us, we can usually "make do" without many devices and yet accomplish 
our desired goal. 



Here are a "Builder's Dozen" I 
have used throughout the 
years. Have you ever tried any 
of them? Or, do you have any other 
ones to send me? 

1. While shopping with my XYL, I 
carae across "plastic shoe shipping 
rods,' 1 used to hold the shape of the 
shoes during shipment, These are abut 
10" long with a 2 1f bend on one end. 
One is in each shoe. Removing the 
bend portion leaves a long round rod, 
easily scored with a razor knife. Roll 
the rod alonj: a flat surface while put- 
ling pressure on die knife. Snap the rod 
at the score. 1 use these as "spacers." 

2. "A/IT boxes, used to shift data 
from one printer to another, make great 
project boxes. Some are plastic and are 
easily drilled and cuL while others are 
metal and require a new face and rear 
plate but are entirely usable for small 
projects. The price is usually very af- 
fordable at hamfests and Ilea markets. 

3. Emery boards, used for trimming 
finger nails, are an excellent device for 
removing enamel coaling from fine 
wire used to wind toroids and trans- 
formers, When the end of the emery 
board becomes too smooth to be ef- 
fective, trim the end with shears and 
continue use. 
36 73 Amateur Radio Today • December 2001 



4, Juice straws, from the little pack- 
ages of 'lunch box" style drinks, make 
an ideal "bobbin" for fine enamel- 
coated wire used to wind toroids and 
transformers. Cut the straw to about 
2", and notch both ends to form a 
"vee" to hold the wire. Wind the wire 
on the length of the straw using the 
notches to hold the wire. Pass the en- 
tire "bobbin" through the toroid and 
unwind as necessary. 

5, Coffee pot plastic. When I needed 
a source for clear or smoked plastic for 
a project (ace. I came across a broken 
coffee maker headed for the trash. The 
clear "water tank" provided a good 
source of tough, clear plastic which 
was easily cut to size, durable, and not 
scratched from use. 

6. Speaker cloth to cover small units 
can be substituted with black felt (or 
your choice of color). Squares of fell 
can be purchased at the local sewing/ 
cloth store for pennies. 

7. Speaker grilles, the screen mate- 
rial used to cover the speaker hole, can 
be created from the bottom panel of 
VHS players, etc., thai have ventila- 
tion holes stamped in them. Carefully 
measure and cut to size. Drill and paint 
to match the equipment. 



8. Damaged paint on enclosures can 
be effectively covered using shelf con- 
tact paper This product is sold in 
many stores in the housewares depart- 
ment, and comes in many colors in- 
cluding clean Cut the product 
oversized, peel the protective backing 
and apply to the cabinet. Trim excess 
material for a finished appearance. 

9. For a more permanent fix, use 
"metal tone" spray paint sold in most 
hardware stores. This paint dries with 
a "dimpled" texture and is great for 
covering a multitude of sins. It looks 
good too! 

10. Need a "ground plane" of larger- 
than-normal size? Go to the craft store 
and purchase a roll of ^Maid-o-Metaf 1 
copper tooling foil for about !sl0. Us- 
ing contact cement, a disposable 
brush, and a suitable backing material 
(I used an old legal-size clipboard), 
adhere the copper to the backing. Roll 
the copper on the backing (1 used a re- 
cently emptied glass beverage boltle) 
to remove bubbles, etc. The foil roll is 
36" by 12", so there's lots of material 
left over for future projects. This much 
cheaper than purchased circuit board 
slock of the same size. 

Continued on page 59 



Ozzie Levin W5RK 

780 W. Bay Area Blvd. #1335 

Webster TX 77598 



IC-706 Goes to Heil 

How to mate your Icom rig with cm old Heil headset 



After winning an Icom 706 MKH at a recent hamfest, I decided now was the time to 
go mobile. 



Tfc ^'ou ming the rig in my Nissan 

I % / I Allima proved to be quite a 
-X. T A problem. Car manufacturers 
certainly don't design the interior for 
mounting transceivers. After much 
frustration, and arguments with the 
XYL, the location was finalized. Now, 
mounting the antenna and running the 
coax and power leads caused a few 
headaches, but finally everything was 
in place. 

A handheld mic doesn't lend itself 
very well to mobile operation, though. 
It's strictly a no-no as far as safety is 
concerned. I happened to have an old 
Heil headset — it would he ideal for 
operating VOX, However, since 
Icom uses electret microphone input, 
I had to figure out how to use my old 
headset. 

After checking out the mic circuit, 
I decided to build a small pre amp to 
drive the mic input, The voltage for 
the preamp is supplied from ihe mic 
connections of the Icom. It works so 
well that I decided to let others know 
how to use their Heil mics on the 
706, 

This circuit can he used with any 
other transceiver that uses the same 
type of input. 



HEIL MIC C1 

+ 



D> 



3.3uF 
TANTALUM 

R2 
120K 




f 



^ PIN 6 



Q1 
2N2222 



R1 

560 

OHMS 



706 MIC 
INPUT 



C2 
1uF 



^-PIN5 



(a) 
U2 









56 











































\ 



(b) 



Fig. L (a) Preamp using NPN transistor ami associated parts, (b) Rear view. 8-pin mic 
connect or comes as an accessory. 

73 Amateur Radio Today * December 2001 37 



Phil Whitchurch G3SWH 

21 Dickensons Grove 

Congresbury 

Bristol 

BS49 5HQ 

United Kingdom 



Helsinki or Buzz! 

No-frills tickets meant an instant junket to OH-landfor this G3< 



For our Spring break this year, Jan and I decided to visit Helsinki. Part of the reason for 
the choice was that the "no frills" airline Buzz was offering two round-trip tickets for a 
total of £102, including taxes! The downside of this was that it meant Hying from 
Sta nsted, which is about a 2.5-hour drive from home. This is the same as the flight time! 



An exchange of E-mails with 
my good friend Jorma OH2KI 
led to a reservation in the cii\ - 
center Helka Hotel and the offer of 
transport to and from the airport. It 
was not my intention to play radio at 
all during our visit, bin maybe to meet 
up with a lew of the local Finnish 
hams for a drink or a meal and to enjoy 
a few days sightseeing around the city. 



Also included was a possible day's trip 

across the Gulf of (inland to Tallinn, 
the capital of Estonia. 

We left home on the morning of Sat- 
urday 2 1 st April and dropped in at Pol- 
lers Bar to see my sometime partner in 
crime Jim G3RTE. for a cup of coffee 
and to drop off three large boxes of 
QSL cards for him to deliver to the 
RSGB bureau. The flight from 




Photo A, Left to ritfu: Jorum 0H2KI; author Phil G3SWH; Jan. G3SWH's XYL; 

Hans OH2EA. 

38 73 Amateur Radio Today • December 2001 



[ Stansicd was a few minutes late, but 
Jorma was waiting for us at the Vantaa 
Airport arrivals gate. He then whisked 
us off to the Helka Hotel to deposit our 
luggage and then for a whistle stop 
lour of the city center, including a 
couple of much needed local beers, 

Jorma was unable to join us for din- 
ner that evening, so we found a restau- 
rant and enjoyed an excellent howl of 
mushroom soup followed by red deer 
en croute. washed down with a bottle 
of good red wine. 

Next morning. Jan wanted to go to 
visit the house of Gallen-Kallela. the 
national artist of Finland, This is situ- 
ated some distance to the west of the 
city center and Jorma didn't know 
how to get there by road, so we had to 
get advice from the hotel, who said 
"take the number 4 tram to the end of 
its route and then follow the signs for a 
couple of kilometers/' Having once 
got hopelessly lost on the Parts Metro. 
I am always a bit suspicious of public 
transport systems in strange cities, but 
we found the number 4 tram route 
without any difficulty and paid our 
fare. It wasn l until we began to see on 
our right-hand side buildings that we 
had already passed on our left-hand 



side that 1 realized that we had actually 
reached the end of the tram route and 
started the return journey. We hopped 
off smartly and began to look for the 
signs to the Gallen-Kallela Museum. 
Nothing! This was a residential district 
and there were very few passershy to 
ask — and those didn't speak English. 
Fortunately, it was a beautiful sunny 
day, although the residue of the previ- 
ous day's snow on the ground made it 
cold. After a long walk following the 
many vaguely waved arms indicating 
"that direction; 1 we eventually found 
the museum and collapsed in dire need 
of a cup of coffee. 

After an hour or so looking around 
the museum, we followed the lake- 
shore back to the spot where we 
should have got off the tram, and 
found an ice cream stall doing a roar- 
ing trade. There's something particu- 
larly delicious about mango-flavored 




Photo B* The author with 
Palace. 



ice cream! We then caught the tram 
back to the city center and a late lunch. 
That evening, Jorma had arranged for 
us to meet up with Hans OH2EA and 
himself for a drink in the hotel bar. 
Hans is another ex-marine radio opera- 
tor and we swapped many stories of our 
lives and experiences at sea. Unfortu- 
nately, Hans had a prior engagement and 
was not able to join us for dinner, so 
Jorma, Jan, and I went off to a very 
pleasant Chinese restaurant for a meal 
together, over w : hich we discussed the 
possibility of a trip to Tallinn the follow- 
ing day. After dinner, we made a visit to 
the Nordic Jet Line ferry company's ter- 
minal and looked at the schedules. Our 
best option was to take a fast catamaran, 
which covered the 60-kilometer trip in 
one hour forty minutes and gave us six 
hours in Tallinn, before returning in the 
late afternoon. Strangely, the return fare 
increased if you wanted to stay longer! 

Jorma then sud- 
denly asked, "Do 
you know Velio 
ES1QD?" I re- 
plied, "I think I 
have worked him 
from just about 
every DX location 
where I have op- 
erated/' Jorma im- 
mediately pulled 
out his mobile 
phone and called 
Velio, who readily 
agreed to meet us 
at the terry termi- 
nal in Tallinn and 
show us around 
the city. 

A taxi got us to 
the ferry terminal 
in good time. The 
weather was very 
cloudy and it was 
quite foggy dur- 
ing the voyage. 
Luckily, just be- 
fore our arrival, 
the sun came out 
and it was another 
beautiful day. Velio 
was easily identi- 
fiable by the large 
"ESIQD" callsign 



Velio ES1QD outside (he Kadriorg 



badge on his chest. He took us off to 
sec the Kadriorg Palace, which is a 
few kilometers outside the city and 
was built in the early 18th century by 
the Russian tsar Peter the Great. Ap- 
parently Peter himself actually laid 
three bricks! Velio works as an engi- 
neer for the local state broadcasting 
authority and explained that he had to 
go to work for a short time, so he took 
us to meet his son Tomas and ex- 
plained that Tomas would look after us 
in his absence. Both Tomas and Velio 
speak excellent English. 

The old town of Tallinn is situated 
on a hill in the heart of the city and is 
medieval in origin with narrow, 
cobbled streets. Severely neglected 
during the time of the Soviet occupa- 
tion, much good-quality restoration 
has been completed and the town is 
well on its way to becoming one of 
the architectural gems of Europe, 

After a w f histle stop tour of the 
town, Tomas took us to an excellent 
restaurant for lunch before we headed 
back towards the ferry terminal, 
where we were able to say our fare- 
wells to Velio before the trip back to 
Helsinki, 

Neither Hans nor Jorma were able to 
join us for dinner again that evening, 
but we arranged for Jorma to pick us 
up at the hotel the following evening 
to take us back to the airport. We found 
an excellent steak house for dinner, 
where an Estonian student served us! 
It was then back to the hotel bar for a 
nightcap. 

Our last day was spent walking 
around the city center just seeing the 
sights, including a 15-minute ferry 
trip to the Soumeniinna fortress, dat- 
ing from 1748, and built on six is- 
lands in front of the city. Again, the 
weather was kind to us and although 
it was cold, only about 5 degrees C, 
it was sufficiently bright and sunny 
for us to sit in a pavement cafe and 
drink beer. 

Jorma collected us in the late after- 
noon as arranged, and the trip home 
was completely uneventful. Even the 
M25 ran smoothly, although it did 
start to rain as we entered the Bristol 
areal « 

73 Amateur Radio Today * December 2001 39 



Klaus Spies WB9YBM 

815 Woodland Heights Blvd. 

StreamwoodlL60107 



Rolf E. Spies N9BRL 

8502 N. Oketo Ave. 

Nilesll_60714 



Beginner's PS Tester 

This variable active load will do the trick 



You've just been told you've got a humming noise on your transmissions. Maybe 
you Ve even noticed a milder version of that on receive. Is your transceiver developing 
a problem, or is the filtering on your power supply failing? Here's an easy way to find out. 



w 



ere all I ;i miliar with the 
amplification capabilities 
of transistors: Turn it on a 



the collector turns on a lot. We use it 
every day in the amplifiers in our ra- 
dios. Here, we're applying this concept 



little by feeding the base junction, and to a more basic principle. By applying a 



vendor 


Fax 


Telephone 


Web Site 


Address 


Allied Electronics 


Various 


(300) 433-7500 


alliedelec.com 


7410 Pebble Dr., Ft. Worth TX 76119 


DC Electronics 


(602)994-1707 


(602) 945-7736 


dckiLs.com 


POB 3203. Scott sdale AZ 95271 


Dlgi-Key Electronics 


(218) 68 1-3380 


(218)6SV6674 


digi-key.com 


701 Brooks Ave S.. TTiief River Falls MN 
56701 


Jameco Electronics 


(650) 592-2503 


(800)531-4242 


jamecocom 


1355 Shoreway Rd . Belmont CA 94002 


Mouser Electronics 


(SI 71 483*6399 


(BOO) 346-^873 


rnouser.carn 


958 N Mam St .. Mansfteld TX 76063 


Newark Electronics 
i 


(800) 71S-1908 


Various 


newark.com 


Vanous 


Tn-Slale Electronics 

1 


{600)255-0526 


£647)255-0600 


Not specified 


200 W NW Highway, Ml Prospect IL 
60056 



Table /. Sources list. 



little voltage to the base through PI in 
Fig. 1, the transistor starts to conduct. 
Instead ol usinsz the transistors i;ain 
to amplify RE though, we're using it 
to load an external power supply. 

Before discussing actual operation, 
here are a few design considerations 
for our circuit. If we're going to test 
small to moderately sized power sup- 
plies, the I -ampere transformer, recti- 
fier, meter, and connectors available at 
Radio Shack will suffice. If you're go- 
ing to test bigger supplies, then I rec- 
ommend investigating heavier-duty 
components available through parts 
dealers like Diiri-Ke\. Tri-Stale Elec- 
ironic v Jameco, or Newark (my favor- 
ite four, but I'm sure thai there are 



51 



n 



^n, 



m 



1 



m 

IfltDGC Rcciinc* 




pi >^ — v* 



Ol 



TC*T POINT 
CGSClLOSCOPn 



Sl^PLT UHOCa test 



Fig* L Active had. RolfE. Spies N9BRL had the original idea for this circuit, while son Klaus WB9YBM built the prototype. 
40 73 Amateur Radio Today * December 2001 



others out there). Either way, though, 
the power transistor at Radio Shack 
(typically used for television sets, 
power supplies, and stereo equipment) 
will work. Be sure to heat-sink every- 
thing well — in this application, things 
will get warm! 

I built my active load in a metal box 
— in this case, not to protect the inner 



workings from stray RF (as is the con- 
cern of my other projects), but rather 
for safely. We're dealing with 110 
volts, and a grounded metal box is still 
the best protection between my fingers 
OUTside the box and the voltages 
INside the box! Also, as I said, in this 
application things will get warm. 
Metal enclosures can still not only 



Part 


Part Numbers 


DigMCey 


Radio Shicli 


Trl-State 


Allied 
Electronics 


Jameco 
Electronics 


DC Electronics 


Tranafomwr 


HM52EX12.6V 
2.5A) 


2731 511 B 
(12,6V 3A) 


23V255 
(12V 1A) 


227-0103 
(12V 4 A} 


29225 (12V 
2A) 


41FG010(12 6V 
1A) 


HM521 (12.6V 
4A) 


273-1 3S2A 
(12.6V 12A) 


23V415 
(12V 2.0 A) 


227-0104 
(12V 8A) 


102120 
(12V 4 A) 


41FGD20(12.6V 
2A) 


HMS22 (12.6V 
6A) 






2270144 
(12V 16A) 




41 FG030 (12.6V 
3A) 


HM523 (126V 
8A) 






KMS24 (12.6V 
IDA) 


Meter 


N/A 


22-414 (500mA) 


20-1116 

(0-aAj 


225-4110 
(0-5A) 


WA 


N/A 






20-1117 
(0-1 0A) 


22*4112 
(0-t0A) 








229-4114 
(0-20AJ 


22&4116 
(0-30AJ 


PI 


Call 


271-265 (25 otim 
3W) 


P-20 


Call 


CaJ 


Calt 




271-1716 (50K 
1/2W) 










Jacks 


CBB104-ND 


274-638 


602 


607-1132 


WA 


N/A 


Transistor 


Call 


276-2041 


Call 


Call 


36324 (4A) 


2N3715(10A) 


■ 








40151 (8 A) 


2N3716(10A) 


38306 00 A) 


2N3055(15A} 




2N3771 <3A) 


2N3772<3A> 


Power cord 


Q106^NO 


61-2653 


17534 


None found 


173809 


LE~2 


Power switch 


CKN1004-ND 


275-634 


SShQOO 


870-91 18 


76523 


5W1D4 


Case 


See catalog 


270-2S3O 


W-2F 


None 

su ruble 

found 


None 

suitable 

found 


MW10 


Screws, 6-32 


H355-ND 


64-3012 


F-504 


None found 


42446 


632-375 


Nuts, 6-32 


H220-ND 


64-3018 


F-55Q 


None found 


42420 


6HN 


Washers 
(lock) 


H24r>ND 


64-3022 


MW-412 


None found 


106669 


62C 


Ground lug 


N/A 


64-3030 


M-111S-06 


839-2381 


N/A 


7312 


Bridge 
rectifier 


Simitar to 

Radio Shack 

— see catalog 


276-3146 (4A) 


Similar to 
Radio 

Shack — 
see catalog 


Similar to 

Radio Shack 

— see 

catalog 


Similar to 

Radio Shack 

— see 

catalog 


Similar to RadJo 

Shack — see 

catalog 


276-1 1B1 (6A) 


276-1 185 (25A) 



withstand but dissipate heat better than 
the other options out there. 
. In actual operation, always be sure 
to start the potentiometer in the posi- 
tion that will turn the transistor off. 
This will avoid unexpected surprises. 
Also, I included a second set of jacks, 
or test points, that I could hook an os- 
cilloscope to. This will allow me to 
monitor the purity of the DC of the 
power supply being tested, as I slowly 
increase the conduction of the active 
load. If you don't have an oscilloscope 
available, don't despair! There is an- 
other way to test for hum, and that's 
with an audio amplifier similar to the 
one discussed on page 26 of the No- 
vember 1999 issue of 73. Be sure your 
audio amplifier works properly (Le., 
doesn't have hum of its own). Then, 
with a series capacitor in use (you 
don't want to feed DC into the input of 
your amplifier, so check to see if you 
need a series capacitor or if one is al- 
ready built-in), hook up to the test 
points on the active load. Crank the 
volume on your audio amp, and if you 
don't hear a hum, your power supply is 
(at least close to) fine! 



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to 
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RC 1000V $259.9$ / RC-1 009129. 95 

Micro Computer Concepts 

9949 Gum Jtmm Ave 
New Port Richey, FL 34953 

727-376*6575 10 AIW-10 PM 

e-mail n9ou@ufcos.nut 
htt|K//mcc»utm in fun -com 

73 Amateur Radio Today • December 2001 41 



Hboue & Bevond 



IB 



VHF 'and Above Operation 



Chuck Houghton WB6IGP 

San Diego Microwave Group 

6345 Badger Lake Ave. 

San Diego CA 92119 

[Clhough @ paebellcom] 



The Channel Master 11.7 to 12.2 GHz LNB: 

Conversion to 10.368 GHz 



This month, lets cover finding a gem in the swapmeet circles and making a silk purse out of this 
sow's ear. During one of these adventures at my local swapmeet, I noticed some very interesting 
shapes in a large box On further inspection, they turned out to be microwave dish 
downconverters from a Channel Master satellite converter system. 



Now. this box was not an apple crate, 
but rather a big box full of antenna 
feeds, converters, and shrouds of plastic that 
covered the converters. There seemed 10 be 
little interest in these items, as no one else 
even came over while 1 was digging in to 
verify just what treasures lay inside. This 
box was about the size of a small refrigera- 
tor cut in half, about 3 feet cubed. Digging 
into the material. I determined that there 
were quite a number of downconverters of 
several different types in this box. From all 
observation, it looked like these conveners 
had been collected from service calls or 
were units removed from customers who 
were changing to other TV satellite or cable 
TV services. 

Well thinking about the possible use for 
these items brought many ideas into play. 
The first consideration is the price one has 
to pay to bring this decision into fruition. 
Docs it warrant a single purchase for ex- 
perimentation, or does a hulk-buy scenario 
lake effect? The premise of this thinking is 
that if one costs several dollars, do they gel 
cheaper in unit price if the whole box is 
bought"? 

A cheap per-unit cost certainly has ben- 
efits, especially if yon can use all of the 
material. Also, you have to consider the test- 
ing to determine the good-to-bad ratio — 
how much proves to be good or whether all 
units are bad and junk. 

These and many other thoughts 20 
through your head prior to asking the price 
from the seller Just don't ask, "What do you 
want lor this goldmine of microwave mate- 
rial 1 " A simpler qucr\ would be "How 
muehT for one item. Get a feel for the range 
of price negotiations first before going over 

42 73 Amateur Radio Today * December 2001 



the edge and paying too much for some | 
untested devices, It's worth a try if you are 
interested in the lot of material and still be- 
ing a pari of the approved haggling at 
swapmeets. Haggling can be just as much 
fun as getting some treasure. 

Well, in this instance I bought the whole 
box of plastic shrouds, converters, and an- 
tenna dish feeds for a modest to stiff price. 
At least it was a price I could walk awa\ 
with knowing that if all items were defec- 
tive, I would not take a bath in this deal* It's 
like playing poker: You have to pay to learn 
how 10 play the game. Just don't pay too 
much to learn how to play the game at 
swapmeets. 

Going through the items at home, I re- 
moved the plastic shrouds and they became 
recycled material. The antenna dish feeds 
were cast aluminum. My grandchildren and 
I sorted out the aluminum from the plastic 
and I gave them the scrap metal price paid 
for the metal, 88 pounds of cast aluminum 
at 5 cents a pound, li was enough for each 
of them to get a Pokemon card set for their 
collection (my contribution), and a few dol- 
lars each for their piggy banks. A profitable 
event for the grandkids. I got the scrap re- 
moved and recovered the 1 1.7 to 12.2 GH* 
microwave do w neon verier, and we had a 
aood time with something for all of us. 

The materials recovered were the 
waveguide flange input connector and an 
"F* coax jack on the output. In actual op- 
eration. the converters are the units seen at 
the focus of a small microwave dish an- 
tenna, usually obscured by a plastic cover 
to give weather protection. What happens 
inside electronically is the same for all uniis. 
the only design differences being several RF 



stages (ranging from 2 to 4), the number of 
elements in the RF fillers, and how 
descretely the units are constructed. By that, 
I mean are they individual parts or a great 
big monolithic chip that is unconvertible to 
other applications? 

Well, all the units T picked up were dis- 
crete. The circuitry inside was the same 
except for the number of stages, types of 
RF filters, and the mixer and IF types of the 
amplifiers. 

The circuitry flow soes like this: The con- 
verier converts 1 1 .7 to 12.2 GH/. a 500 MHz 
TV band of microwave from a satellite as 
received and amplified by the dish antenna, 
further amplified hy the internal RF ampli- 
fier stages, and delivered to an internal 
mixer to convert down to an IF frequency 
of something in the I to L5 GHz frequency 
range. To allow great operation these am- 
plifiers are constructed to have a very low- 
noise figure, in the 0.8 to 1.4 dB range — 
to say the least, that is HOT! A great per- 
former! This signal is now f amplified some 
30 dBd h\ the di>h antenna, and another 50 
to 60 dB to the IF output is then connected 
by a section of coax cable to the top of your 
TV set. The converter on top of your TV set 
converts the incoming 1 to 1,5 GH/ input to 
standard TV channels for reception. 

Now. with a basketful of converters, I 
found large gray ones, small black units, a 
small number of white plastic-covered units, 
and a large number of small beige units. All 
the different-colored untLs look alike except 
for physical si/e. The gray units w ere about 
6 inches long and looked to be the oldest 
design type. The while plastic units were 
smaller and were sealed with a polling com- 
pound, making opening difficult. The black 




Photo A. The converter unit with the cover off. The RF housing 
plate is hollowed out, making small chambers for each part of the 
microwave circuitry to isolate parts of the circuit fmm other fjarts. 




Photo B, SMA connection and RF hoard parts placement. 



units were very high -tech internally and 
easy to open: Just remove the "F 1 connec- 
tor nut on the rear of the unil ami push 
against the F" connector holding the case 
and the waveguide end, as it will pop out ol 
the cover assembly. The beige units were 
opened last, and they proved to be the best 
of the batch: smallest in size, simple to open, 
and having very high-tech construction, 
with some very interesting circuitry yet to 
be discovered. 

See Photo A for a photo of the unit 
opened. Depicted are the convener unit less 
coven with the LO oscillator module and 
its cover hold-down plate. "*F" connector, 
and a spare cover shield housing for the RF 
amplifier circuitry, As you can see, the RF 
housing plate is hollowed out. making small 
chambers for each part of the microwave 
circuitry to isolate one pan of the circuit 
from another. This prevents what is called 
crosstalk from one pan of a circuit to an- 
other ensuring that the flow o\' amplifica- 
tion is as it should be and not a product of 
oscillations or feedback. 

Now, what can be done to use these de- 
vices, as I am not going into satellite TV 
reception? Well, the base unit with some 
modification can be converted into a great 
low-noise dish feed amplifier for connec- 
tion to a waveguide switch, or antenna di- 
rectly. This would make full use of the RF 
LNA amplifier's low noise figure, allow- 
ing the RF amplifier to detect very weak 
signals in die 10 GH/ amateur band after 
conversion. Benefits are low cost, easy 
modification, and low cost again, as if you 
mess up the conversion you can obtain an- 
other and give it a go again. With all the 
satellite systems being replaced and con- 
sumers upgrading systems everyday, there 
should be plenty of these units available at 
your local ilea markets and swap meets. 



The conversion and unit 
description 

The LNB pro amp input is a waveguide 
input, multistage minimum loss connection 
to the microwave antenna system. This al- 
lows for a very low noise front end as close 
as you can get to the antenna. This conver- 
sion from satellite LNB operation to ama- 
teur 10 GHz operation is quite easy. The 
benefits are many. First, the amplifier is 
pretested as a unit, with its internal DRO 
1.0 source mixing the 11.7 to 12.2 GHz 
down to the I to 1.5 GH/ input to a con- 
vener located on your TV set for normal 
reception. These units operate with DC and 
IF (1 to 1.5 GHz) sharing (lie same coax 
from the LNB to this converter input The 
voltage requirements are any voltage from 
+ 10 to about +24 volts. It normally shares 
the coax cable to the LNB coax center, posi- 
tive and negative on the coax braid. There 
is diode polarity protection and a 7808 volt- 
age regulator internal* Typical system noise 
figure is 0.8 to 1.2 dB. 

Modification is quite easy. Remove the 
yellow cover by removing the type + *F' con- 
nector nut. Slight pressure on the "F* con- 
nector will push out the LNB from the 
yellow case. On one side of the LNB there 
is a module that looks like a TTL crystal 
oscillator with a meial side cover hftM ■" 
place by two screws. Remove the two 
screws from the metal plate over the oscil- 
lator module. Then remove the five screws 
holding down the top cover over the micro- 
wave amp part of the LNB. Unsolder two 
pins connected to the PC board from the 
oscillator module, one on top and one on 
the underside of the LNB. This will remove 
the DRO microwave oscillator and mixer 
assembly. It is not required in the conver- 
sion. Notice that on the underside of the top 



metal cover plate there are two arches where 
two lop pins of the DRO connect to the 
upper PC board where the LNA circuitry 
resides. 

At the spot v\hcre you unsoldered the 
DRO oscillator ion the beige unit, this mod- 
ule looks like a metal TTL oscillator 4-ptn 
CHIP like metal can), on the top PC board 
RF circuitry, is where an SMA connector 
will he attached. At this poim (SMA con- 
nector connection) and the output of die 2nd 
stage amplifier there is a filter that is DC- 
isolated from ihe last stage amplifier and 
the point where the SMA connector con- 
nects (same place where you unsoldered the 
DRO oscillator/mixer). Remove all of the 
filter elements except a center width of cop- 
per on the PC board, for a new trace same 
width as filler traces. Cut away a suitable 
opening in this line to insert a I to 2 pF 
microwave chip capacitor to provide DC 
isolation between the last amp stage and the 
output, 

The SMA connector can be mounted on 
a metal plate the same si/e as the one re- 
moved that held the DRO oscillator in place 
originally. Use the same mounting screw 
holes to mount this plate and attach a 2-ltolc 
SMA connector being very careful to be 
accurate in positioning ihe connector on the 
strip-tine circuit board trace. Allow clear- 
ance for the top cover with its arch, which 
should give clearance for the SMA pin to 
go under the cover plate hole. If need be, 
file awav additional clearance in the under- 
side shield plate for the LNA ? s SMA con- 
nee tor clearance to prevent shorting to 
ground. Another method of mounting the 
SMA connector is to solder the center pin 
directly on the output trace and push up the 
2-holc connector to the flat surface on the 
LNA body to uel as close as possible to ihe 

73 Amateur Radio Today • December 2001 43 





Photo C Full side view of the Channel Master LNB. 



Photo IX The shop. 



housing side. Solder the center SMA pin on 
the output trace that connects to the 1-2 pF 
chip capacitor See Photo B for SMA con- 
nection and RF hoard location parts placement 
information, 

Now, solder the ground part of the SMA 
connector to the ground foil on the edge of 
the PC board. Do not oversolder, as you 
need clearance for the shield cover to fn 
allowing the arch to clear the SMA center 
pin and still provide rigid mounting for the 
SMA connector. It's not as rigid as the 
mounting plate scheme, but it's an alterna- 
tive to use in your modification options. 
Last* remove the type "F* output connector 
and replace it with a feedthrough capacitor 



of miniature size, and solder to the trace 
where the "F* connector was unsoldered. 
This will now be the new +12 volt DC 
power for the modified LNA, The 
waveguide input flange is WR-75 and will 
fit up to WR-90 waveguide switches by 
drilling out the four mounting holes through 
the back of the flange mount on the LNA 
and cutting away the outside edge to allow 
a screw to fit the pattern of the WR-90 
flange. The 4 bolts will hold the mismatched 
waveguide fittings together with little 
trouble. It has been shown that as link as 
two screws will hold the LNA lo a WR-90 
waveguide fitting with great rigidity. 
Here is a full side view of the Channel 



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44 73 Amateur Radio Today • December 2001 



Master LNB (Photo C) depicting the DRO 
removed along w ith a second top cover plate 
and DRO mounting plate and coax U F* con- 
nector. The "F" connector is removed and 
replaced with a feedthrough capacitor lo 
bring DC only to the connection previously 
soldered to the "F" connector: mounting of 
the feedthrough cap is not critical. The DRO 
oscillator was removed in this picture, hut 
where the top left pin of the DRO module 
is soldered to on the top LNA part of the 
PC board* it is replaced with the center pin 
of the SMA connector. 

Fig- 1 is a short version of a reverse-en- 
gineered schematic of the beige downcoo- 
vertcr. As you can sec from the schematic, 
the DRO module we described was of great 
interest. It was discovered that not only was 
there an internal microwave DRO -type os- 
cillator, but the RF mixer and II" preampli- 
fier at 1 lo 2 GHz range were also co-located 
inside this module as well. Quite high-tech 
to say the least. This fact made the conver- 
sion easy, as the remaining circuitry was the 
power supply and microwave RF circuits. 
These were the ideal remaining compo- 
nents, as the DRO. mixer, and IF were not 
needed in trying to make a great 10 GHz 
LNA for amateur microwave use. By the 
way, no conversion for frequency operation 
at the lower 10 GHz seemed to be needed 
— just the removal of the output filler and 
replacing it w ith a 1 to 2 pF microwave chip 
capacitor was required 

This mod was the result of several ama- 
teurs pooling efforts and making this project 
work, Ed W60YJ, Pete W6DX.L Kerry 
Nfrl/W, and 1 are all members of the San 
Diego Microwave Group, Recently, a quan- 
tity o\ these LNB amplifiers, along with 
several other types of slight Is different 

Continued on page 59 



QRP 






Low Power Operation 



Mike Bryce WB8V6E 

SunlJght Energy Systems 

955 Manchester Ave, SW 

North Lawrence OH 44666 

[prosolar @ sssnet.com] 



QRP-pourri 



I had planned to have some receiver troubleshooting tips this month. But instead we will look 
at another project. I got started in getting the project done when working a keyer for Field Day. 
Alter a few months of Heathkit QRP radios, why not wrap things up with a look at the Heathkit 
1-1410 kever? 



Of all the products Heathkit made, it 
seems kind of strange that they only 
made three versions of a CW keyer. The first 
was i he rather funky HD-10 keyer. It had 
micros witches for the paddle contacts. It did 
not have a "fine" feel to die key. It did work, 
and Heath sold zillions of them. The HD- 
It) was designed primarily for the SB and 
HW tube-based gear that used grid-blocked 
keying. 

The next keyer. the H D- 1 4 1 0. is a ripped 
off version of the Ten-Tec KR5 kever. The 

- 

electronics and key paddle are mounted in 
a slimline case. 

The Heathkit HD- 1410 iambic keyer is a 
very popular unit. Many of these are still in 
use today. Although the keying paddles are 
not by any means a Brown Brothers' key 
paddle, they're not too bad! 

The HD-1410 features a built-in power 
supply and adjustable sideione.The sidetone 
pitch is also adjustable, although you must 
open the case to access this control. The HD- 
1410 will operate on either 12 VDC or 1 10 
VAC. What's nice about the 1 1 AC supply 
is the detectable power cord. If you warn to 
use the HD-1410 during Field Day, you 
don* l need to bring along the AC power 
cord, 

The output is fully solid state. The HD- 
141 will key either grid-block- or cathode- 
keyed transmitters. There's a jack for a 
straight key, too, although I don't know why 
you would use one w r ith the keyer. 

By pulling out the speed control, the HD- 
1410 will kev the transmitter That's a great 
feature for tuning the antenna tuner. There 
K a second knob on the front panel that con- 
trols the volume of the sidetone. And, like 1 
said, a PC board-mounted trimmer controls 
sidetone pitch. . 

AH of this is housed in a small wrap- 
around case that matches the "SB'" line of 



Heathkit equipment — in particular, the SB- 
Wand the HX- 1681 transmitter, HR- 1680 
receiver. Heath did not change the color of 
the keyer to match the HW-9 or HW-99 
transceivers. The HD-1410 continued with 
the Heathkit two-tone green paint job. 

Since the HD-1410 is fully solid state, 
a ;:ood place to start looking for trouble 
is the power supply. If the HD-1410 works 
on an external battery but not on AC 7 
check the 110 AC fuse and the power 
transformer. On the other hand, if the 
keyer seems dead, but the red power lamp 
comes on, check Q8 and D7. With a DVM 
cheek the voltage on the collector of Q8. 
It should be ut least 10 volts. The output, 
on the emitter should be at least 5 volts. 
If the emitter is over five volts, then Q8 
is shorted. If the output on the emitter is 
zero, then suspect Q8 or D7. Diode D7 
biases the driver transistor on. The TTL 
IC chips in the HD-1410 require +5 volts 
to operate. Too much or too low of volt- 
age will cause the HD-1410 to fail. 

A common problem is a shorted or open 
output transistor. You can easily check this 
by turning up the sidetone volume. If the 
sidetone follows the keying, then the keyer 
is working, but the output keying transis- 
tors have failed. Check Q5, Q6 and Q7. 
Also, check diodes D4 and D5. These parts 
fail if you try to key a transmitter the HD- 
1410 cannot handle. 

I did mention thai the HD-14 10 would 
key a cathode- keyed radio. That* s true, but 
you can't key an Ebnac AF-67 with one. 
There are limits on the keying current the 
output keying transistors can handle. 

To gel the HD-1410 to key most solid 
state transmitters, remove D5 and R27 and 
replace these with jumper wires. This will 
allow the HD- 14 10 to pull the keying line to 
ground. You'll need u> do this modification if 



you want to use the HD-1410 with your Ten- 
Tec Argonaut transceiver. 

T ve found that IC3 can go bad and cause a 
string of either dots or dashes to be produced. 
Also check TC 5. 

IC5 also drives the sidetone oscillator. 
Transistor Q3 takes the output from IC5 and 
drives the speaker. 

After years of use, the paddles may need 
to be removed and cleaned. To remove the 
paddles, pull off the black plastic covers. 
Then, remove the speed and sidetone vol- 
ume controls. Unsolder the wires from the 
pilot light. You can then pull dow n the front 
panel. There are a few screws holding the 
paddle assembly on the PC board, After re- 
moving the hardware, the paddles can be 
removed. Clean the contacts with a strip of 
typing paper. You can clean the contacts 
without taking the paddles apart or remov- 
ing them from the case. 

The Heathkit SA-5010 keyer 

This keyer is a drastic departure from the 
HD-I4I0 keyer. The SA-5010 is a micro- 
processor-based electronic keyer. The SA- 
5010 will key either grid-block or pull the 
key line to ground. Again, there's a limit to 
how much current the output transistor will 
handle. 

Housed in a two-piece plastic clamshell 
case that's really hard to reassemble, the SA- 
5010 came in two different paint jobs. You 
could get one to match the SB* 104 line or 
one to match the HW-9. 

The microprocessor was custom-made 
for Heath. Finding a replacement would be 
next to impossible. So, if the micro is 
cooked, vou're cooked. However, Fve never 
come across one with a bad CPU, Most of 
the time, the output switching transistors 



Continued on page 59 
73 Amateur Radio Today • December 2001 45 



The Digithl Port 



Jack Heller KB7NO 

P.O. Box 1792 

Carson City NV 89702-1792 

[KB7NO@ worldnetatt-net] 



Hams Make Good Use of High-Tech 



This month, I want to touch on several areas that prove interesting on discovery. First, there 
are several new wrinkles in the MixW software. Those of you who are using the program and 
keeping up with the releases will think this is dated material because of the warp-speed 
development combined with the time lag due to publication schedule. 



But for rhe rest of you. the following is 
iioing to sound much like wav far-out 
tech, And that is exactly how it impressed 
me as 1 came across these developments. 

New stuff in MixW 2 

II" vou have looked around a bit, you 
have discovered software to roll-your- 
own QSL cards. I have a few of those very 
line programs on the hack burner of this 
computer and simply never devoted 
enough (anv ) time to them so 1 could send 
out modern cards thai do not include the 
option of AM mode along with a few other 
thoughts from antiquity. 



So, what would vou think if vou could 
simply select a QSO from your tog, double- 
click a utility, and have a card ready to print? 
That is available in the Release 10 of MixW 
2 that I am currently usins. Absolutely 
amazed me. 

1 knew there was something of this na- 
ture available according to a few posts on 
the MixW reflector. I printed out the sev- 
eral pages of new \> items from the MixW 
download page and read the info on the card 
utility a few times. It was only about two 
short paragraphs and. for some reason, the 
brevity intimidated me. It just couldn't be 
this easy — had to be a catch. 





Jack in Carson City. NV 
To radio : W9LR B iff New Berlin, Wtf 



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Fig. L Just a couple of clicks! This Is s-o-a-o easy. Select the QSO from the MixW 2 log, 
double-click the file (see text} in the MixW folder and this prints on your Microsoft Word 
pane. And it looks better than this it you limply prim it ?o some card stock and mad a off. 
For some reason, the resolution went down the tube when I ran this into the clipboard 
and massaged it in the graphics program. But it does serve the purpose; you get a custom 
QSL print you will not be ashamed of and IT IS FREE. Always counts in my (pocket) 
booL fj you are using the latest version ofWord t the instructions say you can do a bit of 
customizing. The above print is as it comes from the box. This was the first experiment. 
Simply closed my eyes and shot from the hip. 

46 73 Amateur Radio Today • December 2001 



But I took a deep breath and followed the 

simple directions which started w ith double- 
clicking the MixW QSL card lest.doc which 
resides in the MixW folder. Being a .doc 
file means i I will open in Microsoft Word. 
Not bad. I use the earliest version of Word 
for Windows w hich is Word 6 and was origi- 
nally written for Windows 3.L so this is a 
good test. 

It works. The test document is a card al- 
ready made up for UU9JDR as an example. 
Things didn't work at first because it is nec- 
essary to have MixW 2 up and running, but 
that is easy. The sample card is quite like 
the one in the screenshot this month, with 
different input, and is very easily duplicated 
with your own callsign and inlb. 

The part thai makes this so overwhelm- 
ingly simple is the process is just two steps. 
Wffli MixW 2 and Word up and running, you 
first select the log entry for which you want 
the card printed. Second, using Explorer, go 
u> your folder where MixW resides and double 
click the file MixW QSL card lest.doc. That's 
il nothing more. Your cuMum card a^embfes 
itself in the Word display 

Next. I printed a couple of cards for re- 
cent contacts and sent them out via E-mail 
as attached Piles, During the process. I real- 
ized there is a percentage of hams who will 
not be able to open these files because they 
will not have the correct software, 1 think 
most of the later WordPerfect software will 
open such files but I hate to send stuff that 
looks suspicious on the receiver's end. 

The real point is it will be a simple project 
to print sonic ol these and send them through 
the old fashioned mail system. As a matter 
of fact, by the lime you read this. 1 would 
not be surprised if some of you ha^e not 
already received a card like this from some- 
one else. It looks like something that could 
really catch on. 



Just as a further experiment. I did a 
lookup tor a QSO i n the MixW log thai was 
earlier history and the card print system 
worked just fine from the info in the lookup 
result window, That makes certain si illations 
easier to manage. 

For instance, ai this time MixW 2 does 
not allow a scroll feature in the log so you 
could select an entry directly for this card 
print process. I have seen a rumor ihat that 
feature may surface from the pile of things- 
to-do sometime soon. But that is not a hin- 
drance to making these cards. 

As I looked further into the minimal docu- 
mentation I found field edjdne available if 

s. 

I were using the latest version of Word for 
Windows. This does not seem to be an ab- 
solute necessity, but perhaps the bundled 
software with the new computer has some- 
thing in Microsoft Works that will lend a 
hand for a little tweaking. 

How about an atlas? 

- 

Another feature that works extremely 
easilv is the interface to the DxAtlas soft- 
uare which can be downloaded from 
[www.dxatlas.com]. If you go to the MixW 

Web site, you can download the file 
[Mix2Dx Atlas 1, zip]. With those two files 
\ou will he surprised how easily you can 
display a world map that gives you beam 
headings along with sunrise-sunset indica- 
tor and other useful information for your 
DX hunting. 

Simply install the software per the in- 
structions, then when you are running 
MixW2 and Dx Atlas along with the 
Mix2DxAtlas utility, you simply double- 
click the callsign in the receive field as you 
make ready to make the contact and the 
DxAtlas program will display the location 
< »f the other station and when you point your 
cursor to the location the beam heading is 
calculated for you. Can't get any easier, 
plus, it is fun to do. 

I shouldn't admit how some of these big- 
kid toys fascinate me. I can sit and sec the 
calls on the monitor and, instead of trying 
to work them. I will start clicking on them so 
I can watch the programs strut their stuff. To 
be fair, I should mention DxAtlas is shareware 
and the demo copy is good for 30 days. 

This kind of automation is making me 
entirely too lazy (and very addicted) for my 
own good. Here I have assembled a group 
of software on a simple old slow computer 
that works most every popular digital mode 
in use by active hams. Plus, it accesses my 
CD with ham addresses automatically, pops 
up previous contacts and now it simulta- 
neously shows me where the other station 
is and how to head the antenna. 




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Fig, 2. DxAtlas in action. This is the flat world view of the world atlas, Also available is 
an azimuihal layout with your station located in the middle and the rest of the world re- 
volving around you. Your choice — you can change it instantly hack and forth. The over- 
all size of the panel can he reduced to fit along side your MixW display or you can have 
them overlap. This view is shown over top and completely covering the MixW 2 display. 
If you do it this way, yott can switch hack and forth with the task bar buttons at the bot- 
tom. The KB7NO location is indicated by the antenna planted to the left of the W7 in the 
western U.S. When I double-clicked the PJ2 station in the receive pane in MixW, an an- 
tenna showed in the very northern pan of South America, liy moving the cursor w that 
point and clicking the mouse the program calculated beam headings and distances in the 
info box above the task bar. This was taken about 2 p.m. local time and you can spot the 
location of the sun by the bright {yellow) spot about L500 miles SWofthe home QTH* 
You can see the sunrise-sunset indicator covering Europe* Africa, and most of Asia- 
There are several options for lookup on prefixes, countries, cities, etc., I did not wish to 
confuse the display with clutter. DxAtlas integrates nicely with MixW 2 with the patch shown 
by the button at the right of the task bar (MLx2Dx) that can be downloaded five. See text. 



Then when I get all through with the 
contact, all that is necessary to produce 
a QSL card are a few simple clicks, A 
few more automated procedures and the 
station will be illegal: there won't he 
any need for a human at the controls. It 
will wake itself up in the middle of the 
night and start making contacts. Too 
much . . . 

There is more. I haven't mentioned 
the automatic lookups you can effect 
with MixW via Internet databases. 
Mostly T have not mentioned this be- 
cause 1 cannot demonstrate this on this 
limited old computer. 

And there are another couple of items 
to make ham life more fun and less threat- 
ening that have to do with automatic an- 
tenna selection and heading. These are 
also covered in the material on the MixW 
Web site. And, due to lack of equipment 
in that category, I have not covered these 
subjects for you. 



Upgrading the shack — again 

But there is an area that I am trying to 
come up to speed. I think my wife was be- 
ginning to think I was about to break her 
new computer as ( was having to rely more 
and more on it to test some of the new and 
improved software dial keeps coming down 
the pike. So she caught me in a moment of 
weakness and insisted it was time to get a 
new computer. 

I have it sitting on the floor just outside 
the door to the shack at this time. As soon 
as I get this article off in the mail that will 
be the next major shack project. I tried to 
get enough bells and whistles to be able to 
do all that might be deemed necessary for 
hookups and speed. More on that as I 
progress. 

I did manage to purchase the largest 
monitor 1 could afford. It is still one size 

Continued on page 50 
73 Amateur Radio Today • December 2001 47 



New Products 



Alinco Introduces DJ-X3 Scanning 

Receiver — Compact Design Features 

"Hidden" Speaker 

Alinco is announcing the release and FCC 
Type-acceptance of its new DJ-X3 scanning re- 
ceiver, a compact unii that can receive from 100 
kHz lo 1.3 GH/ in AM a\k1 wide or narrow FM 
modes. Announcement of the new unit was made 
by Craig Cola of ATOC Amateur Distributing. 
which distributes Alinco products to dealers in 
the USA and Canada, 

* The DJ-X3 has a ven distinctive design that 
places the speaker hehind the display. Audio is 
heard from ports on either side of the display 
window, The compact unit easily fits in a shirt 
__ or jacket pocket The DJ-X3 features 700 memory 
channels 1 1 1) banks of 70 channels L is powered h\ a rechargeable 
Ni-MH batten and also comes with a dry cell (3 X AA} batten, 
pack. The triple conversion IF stage provides excellent reception, 

• The DJ-X3 can reproduce I M stereo when optional stereo 
headphones are connected lo die unit. The operator also has four 
selectable antenna choices: an internal AM bar antenna, a short- 
wave bar antenna, the earphone cable may be used as an an- 
tenna, or die SMA whip antenna lerminal can be activated. The 
unit is supplied with a removable whip antenna but an externa) an- 
tenna can also be connected to the SMA port. An attenuator func- 
tion is available to reduce very strong signals. The receiver also has 
a "bug" detector, useful in searching for hidden transmitters. 

• The DJ-X3 has three operating profiles, VFO, Preset AM, 
FM and TV frequencies and ilie Memory mode. The operator 
can make manual selections or scan in any of those modes. In 
the memory scan mode, the operator can choose one specified 
bank, certain banks can be linked for scanning or one can choose to 
scan all banks. There are 20 program and memory scan options. 

• The DJ-X3 is capable of tuning in user- tie fined steps of 5, 
6.25, 8,33, 10, 12.5, 15. 20, 25, 30. 50 and 100 kHz, The unit 
also has an AUTO step mode that selects the appropriate step 
for the band currently in use. 

■ The illuminated display is large and easy to read. In addition 
to frequency information, it will also show the operating mode, 
memory channel, battery strength, signal strength, and a num- 
ber of other user-selected operating parameters. A charger, belt 
clip and strap are also included. The DJ-X3 can also "clone" to 
other DJ-X3 units, sharing its programmed parameters through 
a wire connection, 

'The DJ-X3 is an exciting new addition to our growing line 
of receivers." said Mr. Cola. It is a great performer in a com- 
pact package. Along with the DJ-X200Q, DJ-X2, and the DJ- 
X10, Alinco now offers the monitoring enthusiast a wide range 
of choices in receivers in different price ranges." 

The DJ-X3 is expected to be available in stores soon. MSRP 
is $302.95, Accessories for the unit, such as extra batten packs, 
are also available. Dealers are free lo set their own prices and 
often sell at prices below the MSRR 

Disclaimer: Specifications subject to change without notice 
or obligation. 

Formore information, contact Evelyn Garrison WS7Aat (425) 
557-961 L 




Special Christmas Key 

In celebration of the season, 
Morse Express has commis- 
sioned a special telegraph key 
which will double nicely as a 

Christmas tree ornament. 

The Morse Express Christ- 
mas key is a fully operational 
miniature key, hand-machined 
from solid brass and plated in 
gold. It measures a liny 1-3/4 
in. by 15/16 in, at the base and 
weighs a mere 2 oz. 

Designed by Marshall Hmm 
N1FN, the Christmas key was a 
challenge for European key 
maker Llaves Telcgraphicas 
Artisauas. All the usual adjust- 
ments (trunnion bearing tension, 
lever spring tension, and contact 
spacing) are available by means 
of gold-plated screws and match- 
ing lock nuts, and the indented 



knob is very comfortable in use* 
All of the machining and assem- 
bly processes were done by hand. 

The resulL according to Emm, 
is "a pretty little key that will 
make an excellent Christmas tree 
decoration or stocking staffer, 
but is also eminendy usable lor 
sending code. It's the smallest 
key we sell, and one of the small- 
est we've ever seen, so it will he 
very handy for QRP portable 
operations. It will also add some- 
thing special to Straight Key 
Night" 

The base of each kev is en- 
graved with the Morse Express 
logo and "Christmas 2001," 
This is a limited edition of 200 
keys, and each bears an engraved 
serial number on the base. 

The Morse Express Christmas 
Ke> is $49,95, plus s/h, and is 
available only from Morse Ex- 
press. Photos and more informa- 
tion are available on the Morse 
Express Web site at fwww. 
MorseX.com], where you will 
also find secure ordering facili- 
ties. Call (800) 238-820? toll- 
free to order by phone, or (303) 
752-3382 for more information. 



PkTerm '99 Version 1.5 Now Out 

Creative Services Software has now released version L5 \4 
PkTerm "<M. which supports the hot new digital mode P5K-3 1 as 
well as the AGW Packet Engine. 

All of the features of PkTerm 1.5 except for one are available 
as a free update if you don't have the PK-232/PSK-31 hardware 
interlace, or if you purchased PkTerm '99 after May 15. 2001 . If 
you do own the interface, and purchased PkTerm "99 before May 
15, then the update is $29.95 for everything. 

For further information, contact Creative Services Software, 
503 West Slate St., Suite 4, Muscle Shoals AL 35661 ; (256 ) 38 1 - 
6100: Lwww.cssincorp.com], 



A GREAT gift idea for your ham friend(s) 

is a subscription to 73 Magazine ... only $24.97! 

Cali 800-274-7373 or write to 70 Hancock Rd., 

Peterborough NH 03458 

There's still time to get a subscription for your favorite ham 

for Christmas, Just mention this ad when you call your order 

in, and we'll send you the latest issue to put under the tree! 



48 73 Amateur Radio Today * December 2001 



Rduertisers" Index 



i 



R.S.# page 

»« I J I L- --J . l ■. ■■ > j 1.1..J1.J1..JLJ i ■ j ■ j u t a * j ha \_J" V ■_ 
/"\l L I fclfc/U ni . i | p rliri 1 ■»■ t *+*,-* 1 | i + h ■ J P ■« *■ *■ \r |P • " 

• All Electronics Corp 14 

• AnvCom, Ine . 31 

16 Astron Corporation.. 2 

• ATOC Amateur 

Distributing LLC CV2 

• ATOC Amateur 

Distributing LLC CV4 

• Bilal Company 33 

168 Buckmaster Publishing ..... 27 

56 Buckmaster Publishing 33 



R.S.# page 

99 Communication Concepts 34 
• Communications 

Electronics, Inc. .. 5 

10 Communications 

Specialists, inc 35 

Creative Services 

Software, Inc. ................ 29 

13 Doppler Systems „. .♦ 22 

• Fair Radio Sates .., 13 

193 GGTE 57 

• Ham Ambassadors 19 



Ham Mall 



■ -i + i r-4 r i! r - - h ■■ ■ 



34 



fl.s.# page 

Hamtronies, Inc. „..„.„...,„.,.. 9 

42 Isotron 33 

• Michigan Radio 49 

160 Micro Computer Concepts 41 

193 Morse Tutor Gold 57 

• Omega Sales 29 

• Omega Sales 33 

• Omega Sales .., 62 

PeetBros ,..35 

• Radio Book Shop 22 

• Radio Book Shop ■. 27 

• Radio Book Shop 41 



R.S.# 



page 

Radio Book Shop 48 

Radio Book Shop 49 

Radio Book Shop , 58 

Radio Book Shop . . 63 

Radio Book Shop 64 

34 Ramsey Electronics ,.. 3 

£54 Ross Distributing 13 

* Scrambling News 29 



SGC 



■ + I + FI + I + I-J*-' 



.. 7 



Universal Radio 27 

W5YI Group 13 

Yaesu CV3 



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73 Amateur Radio Today • December 2001 49 



The Digital Port 

continued from page 47 

down from the one that would have required 
a crow bar lo gel it through the door lo the 

shack. There was a $500 difference to go 
from 1 9 to 22 inches, so I only have to move 
one of the shelves to get it in here. Speak- 
ing of large, I doubt if the box the 19-inch 
monitor came in would have made it 
through the door without a squeeze. 



By measurement, the available surface 
area on the 19-inch monitor is approxi- 
mately 75 to 80 percent greater than the 1 5- 
inch. I think that will suffice to arrange the 
pictures for ease of viewing. Will let you 
know. 

Just a little side note. Just a day or so 
after the purchase of the new machine, the 
XYL and I were passing a counter display 
in an office supply and I spotted one of 
those real treasures. Actually, the display 



Source for 


Web address (URL): 


Mix W Sound card program for PSK31 , flTTY, new 
modes, MTTY. FSK31, more 


http://tav.kiev.ua - nick. mixw2,' 
www. ny bb. nei/~ jafi ej imvmfxwp age htm 


FREE MMHam site — MMTTY — MMSSTV ' 


www. ge odties, com/m mha msoft/ 


FREE VK7AAB — SSTV-PAL— PSK-PAL 


h LtpJ/user s. orl gJ n . n eLau/- erac/ 


Much ham into w/SSi~V downloads 


www. conkne L com/-fcb 1 h> r i ndex him 


TrueTTY — Sound card fTTTY w- PSK31 


www d* soft com mhrtty.him 


Pasokoo SSTV programs A hardware 


www.urtranetcom.' -sstv j lite html 


PSK31 — Free — and much PSK into 


http: ■ .• amlel . t» . ehu . eapsk3 T . htmt 


Interface for digital - rigs to computers 


www. westmou ntainradio.com/R 1 Gblast e r hi m 


Soundcard interface info — Includes Alinco 


www. p ac ketradl o.com/psk3 1 . htm 


Interface info for DIY digital hams 


www, qsL n &V wm2u/inte rf ace . h tml 


WinWarWef info and DXLab Suite 


www qsi . net/ win warbler 


MFSK-retaled lech info — how H wonts 


www qsl ne& : zHQfHj/ 


Throb — New — lots of info 


wwwi&ear Ireeserve . co:ufc/ 
www.btfntefnet.com -g3vfp 


Download Logger, also Zakanaka 


http; U www.qsl . net/kc4e4o/ 


PSKGNR - Front end for PSK31 


www. al- vA 1 1 1 ams, conVwdSgn r/'pskgn r. htm 


Dig! Pan — PSK31 — easy to use 


http Mm e mb e rs . h om e . com/htell e r/digi pan/ 


TAPR — Lois of info 


www.tapr.org 


TNC to radio wiring help 


http ://rreeweb pdq net medcalf zlx. 


ChromaPlX and QiromaSound DSP software 


www.5Htcofipixels.com 


Creative Services SW Muffimode w/PSK 


http: .www cs&ncorp com products htm 


Timewave DSP & A£A (prev.) products 


www, lime wave . com 


Auto tuner and other kits 


www.ldgelectronlcs.com 


XPWare — TNC software with sample DL 


www, g oodn at. com/-gj oh nson/ 


flCKRtty Windows program with free DL 


http://www rckrtty,de/ 


HF serial modem plans & RTTY & Factor 


http //home att net/- k7szV 


SV2AGW free WSnK programs 


www raag org index! htm 


Source for BayPac BP-2M & APRS 


www tigenronics.com 1 


Intl visual Communications Assn, — nonprof tl 
Org dedicated to SSTV 


wwwmintf spring .com/- sstv/ 


Hellschreiber & MT63 & WIFSK16 (Stream) 


http://ii8bly.sy son line it 


Ham Scop© — multimode w/ MFSK16 


http :// j sers . m e I atop . com/- g hansen/ 


YPLog shareware log — rig control — free demo 


www. nu cle us . comM ieloV 


Win Link 2000 System rrrlo 


wwwwinliTik.org/k4qjtf 


Airmail — free program to use WnLJnk 2000 


www ahmail2000 com/ 



Table 1. The Infamous Chart ... updated monthly, 
50 73 Amateur Radio Today * December 2001 



was covered with glass to keep strangers 
with grubby little paws from touching. 
Inside the glass display case were a few 

honest-to-goodness fountain pens. We man- 
aged lo gel permission for me to hold one 
in my hand. They have changed the design 
a bit over the years. There is no exposed 
lever to aid in filling. The inside seemed 
empty and I asked where the bladder was. 

Trying to either suppress a smirk or not 
let on she did not know what I meant, the 
girl behind the counter went and retrieved 
the innards of the mechanism from ihe back 
room and showed me a plastic cylinder with 
a twist mechanism on the end. Twist the 
knob with the pen immersed in the ink bottle 
and it draws ink into die cylinder. 

The point of all this is that after the XYL 
became certain this was the find of the day 
and I should have one, she mentioned the 
fact thai with such a fine writing instrument 
as this I mighi not really need thai new com- 
puter alter alL 1 lold her the computer was 
still necessary; but the pen would become 
nearly indispensable if the printer failed. 
Plus, the pen has a lifetime warranty — the 
life of the owner, not the pen. fry to match 
that w r ilh the computer or the printer. 

More on DxLabs 

Last month's article is quickly becoming 
outdated as ihe work continues on the 
DxLahs projects. I did a bit of a no-no as I 
sent that article off. The lime had gotlen in 

very short supply due to technical difficul- 
ties with the previous Internet connection 
and getting the new setup going. Not very 
good excuses, but I notified Dave AA6YQ, 
after the mailing and included the text of 
the article he was not aware I was writing. 

Needless lo say, this resulted in an unin* 
tended surprise to the author of the fine soft- 
wane I wrote about. Dave was gracious and 
offered a few corrections and since that time 
I discovered he is involved in another great 
all-encompassing software project. 

He is not only heading toward more 
modes than what the current PSK31 
Win Warbler software offers* but is also about 
to embark on a project to expand past the Icom 
line of rig control. By the lime this reaches 
print, you may be able to find support for 
the Yaesu rigs on the Win Warbler Web site 
and I can only guess how much more. 

There are a lot of projects being initialed 
by the fertile minds of some of our leading 
ham oriented software folks. T really like 
what Dave lias done and i> tiling It would 
seem that doing all this work without ask- 
ing for any pay in return should cause the 

Continued on page 61 



Hrmsrts 



Amateur Radio Via Satellites 



Andrew C. Mac All isle r W5ACM 

14714 Knights Way Dr. 

Houston TX 77083-5640 



Updates 



If you missed last month's issue of 73, find a copy! The issue was packed with feature articles 
about the amateur-radio satellites. All of the authors involved are experts on many facets of 

spnce communications. The November 2001 issue will be a useful tool for satellite enthusiasts, 
and not just a one-month curiosity. Check it out! 



New hamsats in orbit: On September 
30th. four satellites were launched 
from the Kodiak Island launch complex in 
Alaska on a single Lockheed-Martin 
Athena- 1 rocket. The satellites included 
PCsau SAPPHIRE. Starshine 3, and 
PicoSat. Three of the four satellites were 
designed to use VHF and UHF amateur-ra- 
dio frequencies. The orbits are polar LEO 
(Low Earth Orbit) from 500 to 800 km. 

PCsat 

PCsat is the result of a U.S. Naval Acad- 
emy project for students pursuing an aero- 
space major. The goal was to provide 
students with a hands-on experience in sat- 
ellite design and operations. Funding was 
provided by the U,S, Naval Academy, and 
a granl from the Boeing Corporation. The 
launch was secured through the Department 
of Defense Space Test Program in coopera- 
tion with NASA. Even before the success- 
ful launch, the project had achieved its goal 
of designing and building a viable space* 
craft. Bob Bruninga WB4 APR pro\ ided an 
excellent article about the program and its 
operation in the November 73. 

The mission of PCsat is to provide mo- 
bile and handheld digital communications 
for amaieur-radio satellite operators using 
APRS (Automatic Position Reporting Sys- 
tem). APRS has become more than just an- 
other use for packet radio. For many hams, 
packet has simply been a means to get on 
APRS. Those who have used APRS know 
that it is a lot more than a solution looking 
for a problem. It has become an easy and 
entertaining way to track the locations o\' 
friends, balloons, boats, planes, and just 
about anything that can carry a transceiver, 
TNC (Terminal Node Controller), and GPS 
(Global Positioning System) receiver. Now 
we have a satellite to relay this data to and 



from remote locations* not to mention the 
short-message feature that allows users to 
send and receive brief communications 
alone with latitude and longitude location 
data. Although Bob WB4 APR had originally 
anticipated a two- week checkout after launch 
before the satellite would be released for 
general use, it only look a few days to test 
all svs terns and declare PCsat readv to so. 
For detailed and current satellite informa- 
tion see [http://web.usna. navy.mil/ 
-bruninga/pcsat.hlml]. 

SAPPHIRE 

SAPPHIRE is the first Satellite Quick 
Research Tesibed (SQUIRT) satellite and 
the second to fly, OPAL was the second sat- 
ellite of the SQUIRT series, but the first to 
fly, The name SAPPHIRE stands for 
Stanford Audio- Phonic Photographic 
InfraRed Experiment, The SAPPHIRE 
project was started tn 1994 and was ready 
for launch in 1998. But now. three years 
later. SAPPHIRE is finally in orbit. The sat* 
ellite was developed by the Stanford Space 
Systems Development Laboratory to allow 
graduate students to gain experience in 
satellite design and construction. 

SAPPHIRE carries three main experi- 
ments. The primary pay load is a group of 
Tunneling Horizon Detectors. They are a 
new generation of infrared sensors that have 
been micromachined to lit in a chip and 
operate at room temperature. The digital 
camera experiment uses a Logitech digital 
camera called the Fniomun Plus. It can take 
and store 32 pictures in JPG format for 
transmission to ground stations. The third 
experiment is called Digitalker. It simply 
converts a text string to voice output for 
transmission via the 70cm FM transmitter. 
More information about SAPPHIRE can be 
found on the Internet at [http:// 



sludenis.cec.wustl.edu/-sapphire/ 
sysovervicw.html]. 

Starshine 3 

Project Starshine is a program developed 
by Gil Moore of Monument, Colorado, to 

encourage and involve younger students in 
satellites. Each Starshine satellite is covered 
w ith small round mirrors like a disco balL 
Mirror kits are sent to school groups that 
wish to participate. The mirrors need to be 
ground, polished and returned for installa- 
tion on the satellite. After launch the stu- 
dents learn about satellite orbits, and on 
appropriate passes, get a chance to see sun- 
light reflect from the satellite's mirrored 
surface. Starshine 3 is the third spacecraft 
in the series, but the second to achieve or- 
bit, Starshine 2 is ready and wailing for 
launch on STS- 108 later this year. 
Starshine 3 is a 37- inch-diameter hollow 



Satellite 


Downlink 


Uplink 




PCsat 


145 825 


435 250 


1200 or 
9600 baud 
AX 25 FM 

mobile 


145 825 


145.S2S 


1200 baud 

AX 25 

APRS FM 

HT 


144.390 




1200 baud 
AX 25 
APRS 
special 

broadcast 


SAPPHIRE 


437 100 


145945 


1200 baud 
AX2S FM* 


Starshine 3 


145825 




9G0O baud 

AX.25 FM 

data 


'SAPPHIRE is also capable of synlhesized voice 

downlink. 



Tabic I. New hamsat frequencies iMHzh 
73 Amateur Radio Today • December 2001 51 




Photo A. PCsat. SAPPHIRE, and Starshine- J all were on hoard the first orbital launch 
from Kadiak Island* Alaska. (NASA Photo} 



aluminum sphere covered with 1 .500 mirrors, 
31 laser retrore flee tors, and seven solar-cell 
clusters. There is also a %00-baud packet 
telemetry system on 145.825 MHz to send 
back data about the system \s power status 
and the satellite's spin rale. Data hursts are 
typically sent once or twice a minute via a 
1 ,25-watt FM transmitter to a pair of quar- 
ter-wave monopole antennas. Later 
Starshine satellites will incorporate spin-up 
and spin-down systems. Hams are encour- 
aged to collect telemetry from Starshine 3 
and forward it via a radio data collection 
Web site [http://www,cpulation. com/ 
starshine]. The main mailing address is 
Project Starshine, 3855 Siena Vista Road, 

52 73 Amateur Radio Today • December 200 



Monument CO SOI 32. More information 
about the past, current and future programs 



can be found at [http://www.azineL.com/ 
starshine/]. 

PicoSat 

The final passenger on the flight was 
PicoSaL This small satellite wa* built by the 
same group that has provided so many 
UoSATs over the years. Surrey Satellite 
Technology, Ltd., at the University of Sur- 
rey in Guildford, England. The satellite was 
built under contract with the U.S. Air Force 
to test four experiments, including an RF 
beacon, GPS Ionospheric Sounding Pay- 
load, a Polymer Battery, and an Ultra-Quiet 
Stabilization Platform. There are no ama- 
teur-radio-f "requency transmitters on board, 
Check [http://www.sstl.co.uk] for more on 
projects from the folks who brought you the 
highly popular UoSATs. 

Athena 

All of these satellites went lo orbit on a 
Lockheed-Martin Alhena-1 booster from the 
commercial Kodiak launch complex on 
Kodiak Island off the south coast of Alaska. 
This was the third launch from the Alaska 
Aerospace Development Corporation's new 
27-acre complex, but the first for an orbital 
mission dubbed Kodiak Stan The Alhena-1 
is a three-stage rocket specifically designed 
for sending payloads that weigh 3.300 
pounds (1,500 kgj or more to low orbits. 
The launcher for this flight was originally 
slated to carry the Vegetation Canopy Lidar 
satellite, but due to schedule slips, and the fact 
that the satellite has grown loo lai^e for an 
Alhena-L our hamsats and PicoSat got a ride. 

The flight was broadcast via NASA-Se- 
lect TV, During the wait for launch and vari- 
ous countdown holds, viewers got to see 
some of the beautiful sights on Kodiak Is- 
land, including wild horses milling around 
one of the tracking antennas, buffalo graz- 
ing neaibv. flocks of birds, and even whales 
off the coast. The NASA broadcast also car- 
ried footage of the integration of the satellites 
and the launcher preparations. For details 
about the Kodiak Launch Complex, go to 
[http://www.akaerospace.com], 



W3ADQ-1 1 >BEACQN,SGATE:T#71 2, 162,1 63,052,213,21 3,1 11 1 1 1 1 1 ,001 1,1 



K87AD08>BEACGN,W3ADG-1 ":SYSTOP TEST NO users please. Wait till users authorized. 



W3ADO-1>APRS3Default LT3 



W3ADO-1 >BEACON,SGATE:T#713 T 1 59.066, 139.044,21 3,11 1 1 1 1 10,0000,1 



W3ADO-1>BEACON,SGATE:T#71 5. 108, 102,067,232,2 13,1 1111111 ,0010,1 
W3ADO-l>APRS2;Defaurt LT2 



W3ADO-1>BEACON,SGATE;T#719 1 110.103,089.1 58.21 3.11 11 11 11.0010,1 



W3ADQ-1>BEACON,SGATE:US Naval Academy Prototype Comm Sat. PCsal(A) 



Table!, A small sample of packet data received from PC sat on its first day in orbit. 



On the Go 

Mobile, Portable and Emergency Operation 



Steve Nowak KE8YN/0 

16717 Hickory St. 

Omaha NE 681 30-1529 

[keSyn @ netzero.net] 



How Do You Communicate? 



Ham radio operators often think of themselves as great communicators, and in some ways we 
are excellent. In other ways, such as when talking to nonhams about the hobby, we may have 
difficulty in getting our message across. 



There's a famous comedy sketch in 
which a character announces lhat he's 
a ham radio operator with "friends all over 
the world — all over the world. I pause) But 
none around here." We all laugh at the joke, 
because there is an element of truth to it. 
Some of us do better when in contact with 
another ham thousands of miles awav than 



when talking with some people only a few 
feet away. Of course, it could he argued thai 
the majority of our contacts arc not really 
communication in the true sense of the 
word. If your average QSO consists of two 
callsigns and "live-nine," it cannot be com- 
pared to a true conversation. However, I 
believe that most of us are rag-ehewers at 
heart and enjoy the communications aspect 
of the hobby as much as the technical side. 
One of the most important contacts we can 
ever make is with someone who might have 
an interest in the hobby. Unfortunately, 
while some hams are very skilled at this, 
some of us could use a little coaching. 

We need to have a steady stream of new 
hams in the hobbv or else we can bid a fond 
farewell to the hobby itself. Without a sig- 
nificant presence, w r e hams are going to lose 
our most important resource — our frequen- 
cies. The reality is such that being elite does 
not justify access to a rare commodity thai 
is in high demand. A small number of hams 
who are highly skilled technically expert. 
and dedicated to the hobby do not carry the 
clout of a larse number of hams of what- 
ever caliber Whether we like it or not. that 
is a fact Therefore, it is in our very own 
selfish best interests to sincerely invite in 
as many potential hams as we can. 

There are a lot of people who could be 
interested in the hobby, if we effectively 
communicated its benefits. The problem is 
that many people don't know ii even exists. 
Some are not aware of the hobby at all, 
while others think that this went out with 



Morse Code and the big bands. Ham radio 
is one of the best-kept secrets around. We 
need to let people know ham radio exists 
and that the> just might enjoy themselves. 

Kids are naturals for ham radio today, just 
like w hen 1 was a kid. The difference is that 
they have a lot more options, and like most 
logical people are going to seek the path that 
provides the most benefit with ihe least in- 
vestment. It's not a "dumbing down" as 
much as common sense. W T hv should any- 
one work twice as hard for the same out- 
come? If my goal is to talk to people all 
over the world, 1 can do that by ham radio 
or by the Internet. If I w ant to talk to friends 
at the other end of the amusement park, I 
can use a two-meter HT, a cell phone, or a 
Family Radio Service radio. Which is 
easier? 

Rule Number One: Focus on the benefits 
of the hobby. With my interest in emergency 



communications, I find it important that in 
a pinch, ham radio is the best chance to 
maintain communications. No other option 
exists in some situations. Other people have 
different benefits to focus on. Interested in 
space? Ham radio can communicate with 
the International Space Station and has its 
own satellites. Enjoy model rocketry or ra- 
dio-controlled aircraft? Ham radio can be 
your telemetry or video downlink as well 
a\ your control frequency. 

Rule Number Two: When speaking to 
someone about ham radio, don't try to im- 
press them w ith your trials and tribulations. 
How many people do we scare off with our 
dissertation about the difficulty of the li- 
cense exam? Do you truly believe that most 
folks who have a potential interest in the 
hobby wouldnT be able to pass the exam 

Continued on page 62 




Photo A. Kids today can be as attracted ro ham radio as we were, but we have to compete 
with the Internet and other technology to catch their aire tit ion. 

73 Amateur Radio Today * December 2001 53 



Homing in 

Radio Direction Finding 



Joe Moet! RE, KO0V 
P.O. Box 2508 
Fullerton CA 92837 
[Homingin@ao1-corn 

[http://www.homingin,com| 



ARDF Championships, Part 1 : 

Triumph in the Land of Enchantment 



Just over a year ago, "Homing In" announced the search for a local radio club to host the first- 
ever national on- foot radio direction finding (RDF) championships in the USA. Ink on the last 
copy of the press run was barely dry when Albuquerque Amateur Radio Club (AARC) answered 
the call its members were eager to put on this historic event. 



License plates in New Mexico proudly 
proclaim that it's the Land or Enchain- 
ment. From July 3 1 to August 4, it was the 
land of international-rules competitive RDF. 
also called foxhunting* foxtailin^, radio- 
orienteering, and ARDF. Anyone, with or 
without a ham license, was welcome to en- 
ter the First USA ARDF Championships by 
paying the registration fee and traveling to 
Albuquerque. 

Perhaps AARC's leaders didn't fully un- 
derstand what they were signing up for, but 



they were definitely up to the cask. Following 
the suggestions in my site-search article J they 
arranged for housing, local transportation, 
hunt venues, maps, medals, and the endless 
other details of a well-run radiosporis event. I 
have much more to say about die fine people 
thai made it a rousing success, but first let's 
focus on the competitors and how they fared, 

A cross-section of America 

We sought entrants from every part of the 



country and widi every ARDF skill level, 
from beginner lo expert. In the end, ten 
states from coast to coast and border to bor- 
der were represented. Although there was 
no formal teaming among the stateside hunt- 
ers, some of them had trained together and 
put on local practice sessions for each other, 
California sent the greatest number. The 
most experienced was Marvin Johnston 
KE6HTS from Santa Barbara. He had been 
on Team USA for the ARDF World Cham- 
pionships (WCs) in 1998 in Hungary 2 and 





■ 






■■■■ 



a 






Photo A. Scott Moore KF6IKO of Santa Barbara is not having a 
good clay on the 2m hlffii t hut lie will go on to win a silver medal 

on 80m. 

54 73 Amateur Radio Today * December 2001 




Photo R„ Sixteen-year-old Jay Thompson W6JAY accepts gold 
medals for both 80m and 2m from AARC president Mike Eaton 
KSMJR 




Photo G Wearing his skirted "Flying Nun " 
hai. Slew Shannonhouse from Georgia fol- 
lows a wash toward the finish corridor 

2000 in China. 3 A strong promoter of ARDF 
in his home town, KE6HTS encouraged two 
local newcomers. Scott Moore KF6IKO 
(Photo A) and Dave Jacobs K9KBX, to 
make the trip, and he helped iheni with train- 
ing. Two other veterans of the China WCs 
were Jay Thompson W6J AY < Photo B I and 
his father Richard WA6NOL who arrived by 
train from Santa Ana, California. Jay, who 
turned 16 just before the Albuquerque events* 
was this year's youngest competitor 

Scot Barth KAnllDZ and Rick Barrett 
K I (il >K F arc members of the San Gabriel 




Photo E. As photographers and tuners 
stand at the ready, Byon Garrabrani 
N6BG of Las Vegas NV heads up the corri- 
dor to the 2m finish line. 



Valley Radio Club 
near Los Angeles. 
Although this was 
their first out-of- 
state event, they 
were experienced 
foxhumers, having 
already won trophies 
at on-foot hunts of 

arrl Southwestern 

Division conven- 
tions and the West 
Coast VHF/UHF 
Conference, 

The next-largest 
regional group came 
from the Peachtrec 
State, where the 
Georgia Orienteer- 
ing Club (GAOC) 
has been including 

radio-orienteering 

in its activities for a 

couple of years under the leadership of Sam 

Smith N4MAP. Other GAOC members in 

Albuquerque were Kevin Haywood 

N4MGB, Steve Shannonhouse (Photo C), 

and Bill Farrell. 

Traveling south from the Denver area 
were Larry Benko W0QE, Dave 
D'Epagnier K0QE, and Larry Noble 
N0NDM. Despite being newcomers, all 
were quick learners and good athletes. From 
the Cincinnati area came Dick Arnett 
WB4SUV (Photo D) and Bob Frey 
WA6EZV. Both had been to the China WCs 
and had trained hard for success in 2001. 

Four localities with active ARDF pro- 
grams were represented by "one-man 
teams." Dale Hunt WB6BYU of Yamhill 
Oregon, was most experienced of the four, 
having competed at the WCs in Hungary, 
served on the International Jury at the WCs 
in China, and organized the 1999 Interna- 
tional Amateur Radio Union (IARU) Region 
2 Championships in Portland, near his 
home. 4 Harley Leach KI7XF attended the 
China WCs and is putting on foxhunts at 
Montana Stale University in Rozeman, 
where he was professor of engineering for 
many years. Charles Scharlau NZ0I repre- 
sented the Piedmont area of North Carolina, 
where he has been promoting foxhunting 
since moving there from Seattle, Byon 
GafTabrantN6BG (Photo Ej won fuxiailing 
trophies in southern California in the mid- 
"90s and is now putting on events in Las 
Vegas, Nevada, following his recent move. 

The remaining three stateside entrants 
learned ARDF by competing against cham- 
pions in other countries. They were eager 
to teach and share their knowledge and 




Photo IX Dick Arnett WB4SUV of Erkmger AT catches his breath 
after a gold medal-winning run. After losing his glasses on the 

championship course in China last year, he got a band to keep 

them firmly on his head this time. 

•■f * 



experience. Gyuri Nagi HA3PA/KF6YKN 
(Photo F) and Csaba Tiszttarto are Hungar- 
ian citizens with USA resident status, living 
on the cast coast w hile in iJiis country. Both 
competed on Team USA in the WCs of 1998 
and 20(H). Hiroshi "Yob" Izuta JF1RPZ7 
KG6CEH was a national ARDF champion for 
19js" and 1993 in his native Japan. He raw 
resides in Sunnyvale, California. 

It's traditional for foreign hams to com- 
pete in national championships as visitors* 

Continued on page 56 




Photo E Gyuri Nagi HA3PA/KF6 YKN t who 

trained in Hungary, had the best times of 
all in the t ISA -only standings. 

73 Amateur Radio Today ■ December 2001 55 




Photo G. Marvin Johnston KE6HTS of Santa Barbara (right) put on a tri-tip beef barbe- 
cue after the practice session around Fenton Lake, Kevin Haywood N4MGB (left) of 
Georgia Orienteering Club captured a bronze medal three days later. 



Homing In 

continued from page 55 

so the invitation went oui to every coun- 
try in Lhc world with ARDF programs. 
Registrations came in from Australia, 
China, Mongolia, and Ukraine. They will 
be featured in an upcoming "Homing In." 

Prepare for a monsoon 

Early arrivcrs were treated to full-fledged 
practice sessions on hoih two- and eighty- 
meter bandit hosted by [he tour participants 
from Georgia Orienteering Club. This took 
place Monday. July 30, at Fenton Lake State 
Park, near Seven Springs, The site, at 7 J40 
feet above sea level, included a 25-aere lake 




with a dam and downstream river, surrounded 
by sEeep hills and canyon walls dial went up 
to the 8,400 feet elevation. According to Kevin 
Haywood N4MGB, "Each GAOC member 
took off m a different direction with one of 
the transmitters and walked up the slope as 
far as our lungs would carry us/' 



RDF was tricky at Fenton Lake, particu- 
larly on two meters as signals echoed and 
scattered off the canyon walls- The steep 
hills made the course physically difficult, 
not to mention the swarms of twin-engine 
mosquitos that nearly carried me away- I 
found out later that this was a backup loca- 
tion for the championships in case the pri- 
mary location could not be used. Its good 
that didn't happen! 

Afterwards, every one enj< >y ed a Santa Bar- 
hara style tri-tip beef barbecue supper cour- 
tesy of Marvin Johnston KE6HTS. who had 
been marinating the Iri-iips in a cooler for 
three days on the way to Albuquerque i Photo 
G), Others provided salads and fixings to 
complete the meal 

July and August is "monsoon season" in 
New Mexico. Warm moist air masses come 
in from the south, meet the mountains, and 
trigger thunderstorms almost every after- 
noon. This day was no exception, and after 
a couple of brief showers during the 80- 
meier hunt, a real gully- washer broke out 
just as the barbecue ended 

Next day. most of the competitors 
checked into dorm rooms at the University 
of New Mexico (UNM > campus near down- 
town Albuquerque. They ate there, loo, at a 
facility that could hardly be called a "dorm 
cafeteria," It was actually a full-lledued hnnl 
court wiUi a variety of hot and cold selec- 
tions for every meal, serving all you want 
to eat, 




Photo H. This whimsical AARC logo was an 

die front cf competitor and staff T* shirts. 

56 73 Amateur Radio Today * December 2001 



Photo L April Moell (right) sounds the horn to start Charles Scharlau NZ0I deft) and 
Scot Earth KA6UDZon die 80m hunt. Scon drew #7 in the start lottery, putting him in die 
first starting position an 2m and the last on 80m. 



Medal 



2m winners 



80m winners 



M19 f 4 foxes 



Gold Jay Thompson W6JAY Jay Thompson W6JAY 



M21 , 5 foxes 

Gold Gyuri Nagi KF6YKN 
Silver Sam Smith N4MAP 
Bronze Hiroshi Izuta KG6CEH 

M40 f 4 foxes 

Gold Dale Hunt WB6BYU 
Silver Charles Scharlau N20I 
Bronze Kevin Haywood N4MGB 

M50, 4 foxes 

Gold Dick Arnett WB4SUV 
Silver Larry Benko W0QE 
Bronze Robert Frey WA6EZV 

M60, 3 foxes 

Gold Harley Leach KI7XF 



Gyuri Nagi KF6YKN 
Dave D'Epagnier K0QE 
Richard Barrett KE6DKF 



Dale Hunt WB6BYU 
Scott Moore KF6IKO 

Charles Scharlau NZ0I 



Dick Arnett WB45UV 
Robert Frey WA6EZV 
Larry Benko W0QE 



Harley Leach KI7XF 



Table /* USA-only standings and medal winners by category. 



Wednesday. August 1, was a Full day of 
organization, instruction, and practic'e on the 
campus, li began with the opening ceremo- 
nies, self-introductions, starting-order lot- 
tery, and a presentation from the U,S. Forest 
Service about its ''Leave No Trace" pro- 
gram. Next, A ARC's Event Chair, Jerry 
Boyd VVB8 WFK, thoroughly explained the 
rules. The mosl significant departure from 
standard IARU rules was an increase of the 
maximum allowable time on each hunt to 
three hours. This gave first-timers a greater 
chance of success. It also partially compen- 
sated for the high altitude and anticipated 
hot, dry weather, 

AARC decided to use the new age/gen- 
der categories that had been proposed and 
debated by IARU officials in Europe and 
Asia, but had not yet been officially ap- 
proved. The new categories for males, based 
on the competitors' ages on January I, are 
M19 (19 and younger), M40 (40 and older), 
M50 (50 and older), M60 (60 and older), 
and M21 (intended for ages 20-39, but OK 
for any male ). IARU also is considering four 
new divisions for females, but unfortunately 
no YLs entered these championships. 



Sam Smith N4MAP of Georgia 
Orienteering Club then stepped up to cover 
all aspects of orienteering maps and forest 
navigation techniques, followed by Dale 
Hunt WB6BYU with a talk about ARDF 
course strategy. These presentations were 
primarily forihe newcomers, some of whom 
had never participated in a full-course 
ARDF event and had no idea what terms 
like "cairn," "spur," and "reentrant" mean. 

Everyone received a T-shirt with the 
event's unique "UFO** logo (blue for com- 
petitors, red for staff, see Photo H). Hydra- 
tion backpacks and whistles were passed out 
to all, for health and safety in the forest. 
Competitors were told what to do in case 
they got hurt or lost, to summon help from 
the New Mexico Search and Rescue Team. 

The rest of Wednesday afternoon was for 
training and equipment checkout, with 
plenty of 80m and 2m transmitters on the 
air throughout the UNM campus. Everyone 
wondered if the signal reflections and bear- 
ing aberrations caused by campus buildings 
were more severe than those they would en- 
counter in the forest After that it was time 
for a hearty dinner and a good night's resL 






Where are we going? 

Buses boarded promptly at 0800 Th um- 
day. Rumors had been flying that the 2m 
hunt would be in the Sandia T San Pedro, or 
Sangrc de Cristo Mountains, but instead the 
bus went 35 miles southeast of the city to 
Man/ano Mountain State Park, It parked 
near the finish line, then AARC members 
drove a few hunters at a time down a nar- 
row din road to the starting point where 
the bus could not have gone. Scott 
Stevenson KC5VVB and his crew of vol- 
unteers were ready to send them off, two 
from different age divisions u? a time, into 
the woods at five-minute intervals corre- 
sponding with the start of Fox #1 (MOE) 
transmissions (Photo I). While they waited, 
there was plenty of water and snacks* 

After receiving their 11x1 7-inch maps 
just before start time, hunters discovered 
that the staning line was at the north end of 
the hunt area and the finish tine was to the 
east. They would have to optimize their 
routes to find their required foxes along the 
way from start to finish. 

IARU rules prohibit hunters from iurn- 
ing on their receivers until they are at the 
end of the stan corridor, out of sight of the 
hunters still waiting to start. Some stayed 
at the end of the corridor for a full 5-fox 
transmission cycle, taking careful bearings 
on every required transmitter and plotting 
them on their maps. Others immediately ran 
off toward Fox #1. 

The two-meter hunt area encompassed 
about 880 acres of forest, with ponderosa 
pine, pinon, and alligator juniper. Partici- 
pants in last year's WCs in China agreed 



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73 Amateur Radio Today ■ December 2001 57 



lhai \ cgc'iiiiiun in Muii/uno Mountain Park 
was much less dense, making cross-coun- 
try running easier, but not loo easy. The 
weather was belter this year, too. The direct 
sun was quite warm* but clouds increased 
as the hum went on. 

Altitude, which ranged from 7,250 to 
7,840 feet, was the greatest running chal- 
lenge for many hunters. The mosquitoes 
weren't out in force, but the forest floor had 
boulders in many places, making it impor- 
tant for hunters to mind their footing. The 
straight- line course length, from start to all 
five foxes and then to the finish, was just 
under five kilometers. 

Mike Eaton K5MJE (AARC president! 
and another volunteer crew awaited the 
hunters as they ran through the corridor 
10 the finish line. Boy Scouts at the en- 
trance of the corridor used Family Radio 
Service (FRS) radios to alert the finish 
line staff and photographers when runners 
approached. The last finisher came in just 
as the afternoon's thunderstorm began 
soaking the finish shelter area* A special- 
event HF station < K5T) was ready, hut no 
one wanted to operate it with lightning 
nearby. 

The bus route was exactly the same on 
Friday for the 80- meter hunt, because that 
hunt ended in the same place. However, 
the start was 1 .4 mi les southwest of the two- 
meter start. The 80m hunt area was about 
the same size and directly south of the 2m 
zone. The starling line was at the western 
high point, so it was all downhill for the 
competitors if ihey chose the correct 
route. 

As they picked up their SOm maps, every 
hunter was planning how to do belter than 
the day before. For some, it was their first 
SOm hum and they were using borrowed 
receivers. For others, it was an opportunity 
to try out their just-completed home-brew 
80m ARDF sets. 

Sure enough, everything went more 
smoothly, both for the organizers and the 
hunters. Almost every performance was 
better, even though the course length was 
10 per cent longer than on two meters. The 
hum was over before the afternoon rains 
came, except for one lost competitor that 
I'll tell you about next time. 

The closing banquet on Friday evening, 
organized and presided over by Brian 
Mileshosky N5ZGT, included an excellent 
Mexican food bullet, the traditional token 
gift exchange, speeches of thanks, raffle 
prizes, lots of photos, and, of course, the 
medals. Afterwards, it was lime to go pack 
the suitcases for departure by train, plane, 
and highway the next morning. 

58 73 Amateur Radio Today * December 2001 



The winners are ... 

Experience in his native Hungary and at 
the last two ARDF WCs paid off for Gyuri 
Nagi HA3PA/KF6YKN, who had the best 
performance by a stateside competitor on 
both bands. Although he could have com- 
peted in M40 division, he chose M21, re- 
quiring him to find all five foxes. His lime 
was under 54 minutes on 2m and under 50 
minutes on 80m. Close behind him on 80m 
was newcomer Dave D'Epagnier K0QE 
with less than 63 minutes. On 2m, Sam 
Smith N4MAP was next with less than 68 
minutes. All medalists in M2I had times 
under 99 minutes* 

In M40 division. Dale Hunt WB6BYU 
cruised to a gold medal by finding his re- 
quired four foxes tn less than 83 minutes 
on both bands. Newcomer Charles Scharlau 
NZOI had excellent under-two-hour times 
on both bands. But the big surprise in M40 
was Scon Moore KF6TKO. who found no 
2m transmitters on Thursday and then went 
on to take silver on 80m by finding all four 
in less than 86 minutes. 

In M50. the gold winner both days was 
Dick Amett WB4SUV, He found his 4 foxes 
in less than 69 minutes on 2m and 82 min- 
utes on SOm. The 2-day battle for runner- 
up was between Larry Benko W0QE and 
Bob Frey WA6EZV. Each went home with 
a silver and a bronze. 

The youngest competitor (Jay Thompson 
W6JAY) and the oldest (Harley Leach 
KT7XF) were in categories by themselves, 
(Even though he was actually 59 at the lime, 
Harley was in M60 because "division age" 
is the age on your birthday in the competi- 
tion year.) Each had excellent performances 
and each took home gold medals, Harley 
found his required 3 foxes in less than an hour 
each day. The complete list of all medalists in 
the USA-only standings is in Table 1, 

Thafs all for this month, but there's lois 
more to tell about the first USA ARDF 
Championships. Conic back next month for 
more stories from New Mexico. The spot- 
light will be on the foreign visitors, the or- 
ganizers, and the informal competition 
among the cities. Meanwhile, start planning 
on-foot or mobile transmitter hunts in your 
home tow r n. I welcome your RDF stories 
and photos, which should be sent to the 
postal or E-mail addresses at the beginning 
of this article. 

Footnotes 

I. MoelL Joe, "Homing In: USA 
Foxhunting Championships 2001 — Let's 
Stan Planning Now" 73 Magazine. October 
2000, 



2. Moell, Joe, "Homing In: A Banner Year 

— More to Come," 73 Magazine, January 
1999. 

3. Moell, Joe, "Homing In: A New Mil- 
lennium for Foxhunting." 73 Magazine, 
January 2001. 

4. Moell. Joe, "Homing In: City of Roses 

— and Foxes/* 73 Magazine, October 
1999. 



Microwind to the Rescue! 

continued front page 16 

on the list. All three of these suppliers 
can be found on the Web, or you can 
order by phone. The contact informa- 
tion for these suppliers is: 

DIGI-KEY 
1-800-344-4539 
[hltp;//w ww,digikey.coni] 

CIRCUIT SPECIALISTS 

1-800-528-14)7 

lhup;//w ww. web-lronics.com/] 

RADIOSHACK.COM 

1-800^42-7221 
[http://www.radioshack.com] 

While there's no reason why the cir- 
cuits could not be built on small pieces 
of perfboard, the printed circuit boards 
make it simpler, avoiding any hand- 
wiring, I can provide a set of two bare 
circuit boards, etched and drilled, for 
$5 plus $1 for postage. Send check or 
money orders to: 

THOMAS MILLER 
216 East 10th Street 
Ashland OH 44805 

If there is enough interest, I will 
consider offering a kit of circuit 
boards, electronic components and the 
blade adapter. Keep an eye on my Web 
site [hup://www.bioelectrifiencom] for 
updates and additional information on 
this and many other projects. 



Back Issues 

of 
73 Magazine 

Only $5.00 Each! 

Call 800-274-7373 



VOM Primer 

continued from page 29 

read AC volts requires convening 
the AC into DC and I hen reading the 
DC in the usual way. A half-wave 
rectifier is used to convert ihe AC to 
DC, Half wave rectification pro- 
duces a DC (average) voltage that is 
0.3183 x E^. The meter face is 
marked to indicate the RMS voltage, 
which is 0,7071 x E t . The AC 
meter reads average and indicates 
RMS Measuring complex wave 
shapes can lead lo confusing read- 
ings unless the shape is known. If the 
AC frequency is very low, the meter 
will follow the voltage or current and 
not indicate the average. 

Most meters arc calibrated with 60 
Hz. Al low voltages, the forward volt- 
age drop across the rectifier is signifi- 
cant, and a separate low AC voltage 
scale added to the meter. 

Frequencies above high audio are 
not usually measured with a VOM 
because the capacitance of the 
meter's circuits is lossy or unpredict- 
able and the equivalent multiplier is 
unknown. 

To summarize the limitations of a 
VOM: The ideal current meter has 
zero resistance and drops no voltage, A 
real- world current meter has some re- 
sistance and drops a little voltage, usu- 
ally on the order ol' 25 mV or 50 mV 
The ideal voltmeter has an infinite re- 
sistance and does nol load the circuit, 
A real-world voltmeter loads the cir- 
cuit under test. The loading is a func- 
tion of the voltage scale used and the 
sensitivity of the meter The loading 
provided by a voltmeter is given as 
ohms per volt. 

The AC voltmeter function reads the 
average of the AC and indicates RMS. 
The AC voltage is assumed to be a 60 
Hz sinusoid. Voltages of audio fre- 
quencies can be read with unspecified 
aecuraev. The circuit under lest is still 
loaded bv the meter. 

The VOM is a most useful instru- 
ment, It is rugged but not bulletproof: 
They can be abused lo the detriment of 
the meter In fact, the VOM is prob- 
ably the most used instrument on the 
bench, and no bench should be without 
one — despite its limitations. 



Ye Olde Fishpole Vertical 

continued from page 35 

the coax is connected hack on the 
rig. 

If you don't have an antenna ana- 
lyzen you will have lo go through the 
purgatory of reducing power and 
checking and rechecking the SWR. 

I also obtained good results by using 
the metal frame of a door and an air 
conditioner metal frame mount. 

There will definitely be variations to 
the tuning, depending on the inherent 
density values surrounding your area of 
installation, In some cases a larger value 
capacitor may be required. M> capacitor 
value turned out to be 1 25 Pf under a va- 
riety of different applications. II the in- 
stallation is to be permanent, then measure 
the caps value and replace with a goxxi 
fixed mica capacitor for a smaller foot print. 
Follow the simple rules in resonating an 
antenna, and I am sure that it will work 
quite as well for you as it has for me. 

I am sure that this antenna will give 
you more ideas for other ventures, and 
I hope to be reading about them. 

Although this antenna has heen 
tested at 40 watts. I recommend that it 
be used for QRP only. 

I used approximately 25 feet of mini 
RG-8X coax cable for my installa- 
tions, but RG-58 could also he used. 
Although it has more capacitance per 
foot, I am sure that you could get it to 
resonate. Experiment! The MFJ SWR 
analyzer would be a great assist for the 
initial setup. Have fun! Get outdo(>rs 
willi your favorite hobby! 



The Builder's Dozen 

continued from page 36 

11. Vernier gear drives can be cre- 
ated from VHS tape player deck gear- 
ing. Use heavy perfboard as a 
sandwich to hold the gearing. The 
plastic spacers described abo\ e can be 
cut to form the necessary corner spac- 
ers and bearings. While nol a light pro- 
fessional unit, it has been m sen ice for 
several years now and works as it did 
w hen new. 

12, Storage boxes, the ones sold at 
ihe craft store for storage of thread on 
small paper squares, make ideal units 



for keeping resistors, caps, etc., sorted 
and ready for use. They're about 8' 1 by 
1 2" and are divided into compartments 
for easy sorting of parts. The price on 
these is about $2, and sometimes they 
can he found on sale for half that, 
Mark the outside of the box with the 
contents for easy identification. 

And there you have a Builder's 
Dozen" of helpful hints for a more 
successful project. Keep building! 
There's no end to the pride and sense 
of accomplishment achieved when you 
create your own projects! 



Abode & Beyond 

continued from page 44 
configurations, were obtained: these \\ ill be 

s- 

made available lo other amateurs. We make 
these devices available for those who can- 
not find units at their own local swap meets. 
The beige LNB. tested and ready lo con- 
vert, is available for $20 postpaid from the 
author. Please direct any question on this 
and any other items to Chuck WB6IGP at 
[clhough@pachelf.net]. 



QRP 

continued [mm page 45 

either open up or short circuit. Lucky for 
us, they're just cheap bipolar transistors. 

Opening the SA-50I0 is easy: There arc 
four screws holding the bottom plate on. The 
top and bottom halves come apart. On the 
bottom plate, a 7805 regulator is mounted 
with a connecting cable leading to ihe main 
PC board. This cable must be unplugged 
before the two halves can come apart. Once 
apart, there is one more cable that needs to 
be messed with. Thais the one dial goes to 
ihe keypad. There is another smaller PC 
board ihat holds the LED. This guy always 
seems lo gel in the way. 

The keying transistors are mounted on the 
lop right-hand side of the PC board. There 
you will also find the bridge rectifier made 
up of four diodes. These diodes provide ihe 
SA-5010 with the ability to operate on ei- 
ther AC or DC power. The SA-5010 is nol 
polarm -sensitive either. These diodes will 
always select the proper polarity and send 
it the necessar\ circuits. 

Putting the SA-5010 back together re- 
quires several more hands than most of us 

Continued on page 61 

73 Amateur Radio Today • December 2001 59 



Propagation 



■ 



Jim Gray II 

210 E. Chateau Circle 

Payson AZ 85541 

[akd hc2pi lot @ yahoo.com] 



DXers, Rejoice! 



December should offer DXers some of the best conditions of the year, as daytime signal absorption 
and atmospheric noise both decline to seasonal minimums in the northern hemisphere. Activity 
on the sun is also expected to moderate somewhat, leaving plenty of opportunity to exchange 
"season's greetings" with stations worldwide. 






s shown on ihe calendar, eighteen days should bring us at 
least Fair (F) propagation conditions — the best days being 
the J 1th to 1 3th and 25th to 27th, when solar activity is projected 
to be very low. Of course, there will be some disturbed periods, 
and the whole week from the 2nd through 8th looks particularly 
dismal Other "critical" dates are the 1 4th, 17th, 19th, 23rd T 28th, 
and 3 i st so expect moderate flares, coronal mass ejections (CMEs), 
and associated high flux values on those days. As always, geomag- 
netic effects may follow some eruptions within 72 hours, so be 
sure to monitor WWV for any developments, 

Last month, I mentioned that we would look at the methods and 
pitfalls of propagation forecasting. Unfortunately, due to various 
constraints, this discussion will have to wait until a future issue. 
However, to set you to pondering the first subject of my intended 
discourse, let me pose a question: What does the latitude of your 
station have to do with the propagation and quality of the HF signals 
that you send or receive? 

Band-by-Band Summary 
1 0-1 2 Meters 

Worldwide openings will occur from sunrise to just after sunset. 
Europe, the Middle East, and Africa will be best before noon. Cen- 
tral and South America should remain open from midmorning 
through late afternoon, with some noontime fading. The Pacific 
and Asia should open from noon through early evening. Expect 
skip to be 1,000-2,000 miles. 







December 2001 






SUN 


MON 


TUE 


WED 


THU 


FRI 


SAT 














1 G 


2 F-P 


3 P 


4 P 


5 F^P 


6 F 


7 F-P 


8 F 


9 F-G 


10 F-G 


11 G 


12 VG 


13 VG 


14P 


15 F-G 


16F-G 


17 F-P 


18 F 


19 F-P 


20 F-G 


21 F-G 


22 G 


23 F-P 


24 F 


25 G 


26 VG 


27 VG 


28 F-P 


29 F 


30 F-G 















EASTERN UNiTED STATES TO: 


GVT- OO 0?. 04 t» 08 10 1? 1 4 16 te: :20. g£ 


Gem rar 
America 


1S (40) 


30 (40) 


20 (40) 


(40) 


i"" 1 '"- 1 1 


(20--C) 


(15) 20 


10-20 


10(20) 


10-17 


1 (20) 


(10) 20 


Amenta 


(15) 20 


2d (40) 


20(40) 


20 (40) 


X 


X 


l.1!5-20) 


X 


m 


i10(15) 


10 (20) 


(10) 20 


Western 
Europe 


40 


-C 


40 


40 


(401 


X 


(10-20) 


1 (20) 


OO) 20 


(1 5-20) 


(20) 


(20-40) 


Rftufrwm 
'Africa 


120-40) 


140) 


X 


X 


X 


X 


X 


(10-12) 


10 (17) 


'(12) 17 


(1S-2D) 


20 






Eastern 
Europe 


(40> 


(40) 


X 


y 


(20) 


X 


(10-20) 


(10)20 


<20} 


X 


X 


X 


: Middle 
East 


(40) 


140) 


X 


X 


X 


X 


(10) 


(10-1 5] 


1 5 (20) 


20 


(20) 


(20) 


Indian 


X 


X 


X 


X 


X 


X 






X 


X 


X 


(£0) 


Pakistan 


X 


(15-20) 


Far East/ 
.Japan 


(1 5) 20 


20 


(20j 


(20) 


X 


X 


(20} 


X 


X 


X 


X 


(10-20) 


iSoirtheast 
Asia 


(16-20) 


X 


X 


X 


X 


X 


X 


(10-20) 


(io-t6) 


X 


X 


X 


[Australia 


(10'1/J 


(15-201 


X 


X 


(20) 


(30-40) 


(20-40) 


(10) SC 


(10-20) 


X 


(HO) 


(10-15) 


Alaska 


15-17 


20-30 


K 


x 


X 


20-30 


20-30 


15-17 


I i 1 ■■ 


>: 


X 


15-17 


Hawaii 


(10) IS 


(20) 


20 


(20) 


20(40) 


40 


(20-40) 


m\ 


(15-20] 


X 


im 


10(15} 


VvasLBm 
USA 


00)40 


(15) 40 


20-40 


(20) 40 


40 


40 


40 


(2O40) 


(10-20) 


10-20 


10-20 


10-20 


CENTRAL UNITED STATES TO: 


Carrtral 
America 


(15)20 


20(40) 


{20) 40 


(20)40 


(20) 40 


■10 


(40) 


(10}20 


10-20 


10-15 


10 (20} 


15-20 


5Q<jm 
A-n-fir--. 


(is) an 


20 


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20 (40) 


(20) 


X 


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>■■>• 


10 


10(20) 


(10) 20 


Weste rr 


(40) 


40 


40 


(40) 


X 

i- 


X 


(20) 


(15) 20 


(10} 15 


(15)20 


(201 


X 


Southern 
Africa 


£0 


!^v. 


* 


X 


X 


X 


X 


X 


(10-15) 


(TO) 15 


15(20) 


20 


Eastern 


X 


(40> 


X. 


X 


X 


K 


X 


(10) so 


(10-20) 


X 


X 


n 


fv'iad a 


X 


(40) 


(20) 


M* 


X 


X 


X 


(10-15) 


(10-15) 


(20) 


20 


(20) 


India/ 
Pak i ; ;::; • 


X 


(15) 


X 


X 

i 


* 


X 


(20) 


X 


(15} 


X 


X 


X 


Japan 


X 


X 


(20} 


20 


(20-40) 


(40) 


(20) 


20 


(15-20) 


X 


15 


(15) 


■Southeast 
Asia 


X 


X 


K 


X 


(20) 


(20) 


20 


(15-20) 


(15) 


X 


(15) 


X 


; Australia 


{10) 15 


15 


(15-20) 


20 


20 (40) 


20-40 


20 (40) 


(20) 


X 


X 


x 


(10-15) 


; Alaska 


15-17 


15-17 


t, 


X 


x 


(40) 


(40) 


20 


20 


X 


X 


X 


Hawaii 


110) 15 


(15-20) 


20 


20 


(40) 


(20-40) 


20 (40) 


X 


(IS) 


(IS) 115) 


(10) 15 


WESTERN UNITED STATES TO: 


Central 
America 


(30-40) 


40 


40 


40 


(40) 


X 


(20) 


(10)20 


T0(20j 


10 (20) 


(10) 20 


(J5}20 


sau?h 
America 


1 7 (40} 


(201 


X 


X 


V. 


x 


X 


('5] 


12(20) 


10-20 


10-20 


12 (40) 


West&rf, 
Europe 


X 


X 


(40) 


(20) 


(20) 


* 


f20) 


(10-20) 


(10) 20 


(20) 


X 


X 


Southern 
Africa 


{20) 


X 


X 


X 


X 


X 


X 


X 


(10) 


(15) 


15 (£0) 


(15)20 


l-sstern, 
Europe 


x 


X 


X 


X 


% 


* 


X 


X. 


X 


jjj 


; x "- 


X 


Middte 
East 


J 20 


(40) 


(ao» 


20 


20 


;2iv, 


X 


(T&) 


{10| 15 


(10-15) 


(20| 


(20) 


India/ 
Parian 


(15-20) 


X 


X 


X 


X 


* 


K 


(20) 


x- 


X 


X 


X 


Fa" bast/ 
Japan 


(10)20 


(15-20) 


X 


X 


(40) 


40 


(40) 


X 


% 


X 


(10-20) 


10-20 


Southeast 

A?. 3 


f151 


{20) 


X 


X 


x 


X 


x 


(20) 


(1i)20 


(20) 


(10-15) 


10-15 


AU^FLLlill 


i 10-15} 


(1S-2Q) 


X 


X 


X 


(20-40) 


{?fl-4ty 


i-l.i 


(15-20) 


15 


(10-15) 


10 


Alaska 


10-15 


X 


V 


20-30 


20-ao 


20-30 


20-40 


X 


20 


15 


X 


15-17 


Hawaii 


(15) 20 


(1 5) 20 


20 


■.:*'.:: 


(40) 


40 


(20-40) 


(T5) 20 


15(20J 


(10-15) 


10(15) 


(10* 15 


Eastern 
USA 


(10) 40 
i 


.(15)40 


20-40 


(20) 40 


40 


40 


(20-40)! 


(10-20) 


10-20 


10-20 


10-20 


10-20 
























' 



Table L Band, time, country chart. Plain numerals indicate 
hands which should be workable on Fair to Good (F-G) and Good (G) 
days. Numbers in parentheses indicate hands usually workable on Good 
(G) days only, Dual numbers indicate that the intervening bands 
should also be usable- When one number appears in parentheses, 
that end of the range will probably be open on Good (G) days only 



60 73 Amateur Radio Today * December 2001 






Calendar euents 



Listings are free of charge as space permits. Please send us your Calendar Event two months in 
advance of the issue you want it to appear in. For example, if you want it to appear in the 
March issue, we should receive it by December 31. Provide a clear, concise summary of the es- 
sen tial details a bou t your Calendar Even L 



JAN 19 

ST. JOSEPH, MO The 12th annual Northwest 
Missouri Winter Hamfest, co-sponsored by the 
Missouri Valley ARC and the Ray-Clay ARC, 
will be held 8 a.irr-3 p.m. at the Ramada Inn 
in St Joseph MO. The motel is located at I-29 
and Frederick Ave. (Exit 47 on I-29}. Special 
room rates are offered for hamfest participants. 
Talk-in on 146.85 and 444.925. VE exams, 
major exhibitors and flea market all indoors. 
Free parking. Advance tickets $2 each or 3 lor 
$5; at the door, $3 each or 2 for $5. Pre- 
registration requests received after January 
6th will be held at the door. Swap tables $10 
each for the first two tables. Commercial 



exhibitors are welcome, write for details: 
Northwest Missouri Winter Hamfest, c/o Meal 
WB0HNO or Carlene KA0IKS Makawski, 
3704 Meadowoak Ln., St. Joseph MO 64503, 
E-mail [nem3238@ccp.com]; or tef (816) 279- 
3406. 

JAN 20 

HAZEL PARK, Ml The Hazel Park ARCs 36th 
Annual Swap & Shop will be held at the Hazel 
Park High School, 23400 Hughes St., Hazel 
Park Ml, 8 a.m -2 p.m. General admission is 
S5 in advance or at the door. Plenty of free 
parking. Tables $14, Reservations for tables 
must be received with a check. No reservations 



by phone. Talk-in on 1 46.64 (-), the DART rptr. 
For info about the swap, tickets, or table 
reservations, mail to HPARC, P.O. Box 368, 
Hazel Park Mf 48030. 

SPECIAL EVENTS, ETC. 

DEC 14, 15 

BETHLEHEM, IN The Clark County ARC will 
operate W9WWI 1500Z December 14th- 
2200Z December 15th, in celebration of the 
Christmas season. Operation will be on 
General 75, 40, and 20 meters. QSL with an 
SASE for a certificate to CCARC, 1805 E 8th 
St., Jeffersonvflie fN 47130, 



15-17 Meters 

Openings can be found from sunrise to 
mid-evening on good days. The best times 
will generally be a bit after the peaks for 1 
and 1 2 meters, but the bands should remain 
active until about 9 p.m. local. Skip will be 
shorter, though, at only 1 ,000 miles or so, 

20 Meters 

Around-the-clock activity can be found 
here. Expect peaks just after sunrise. From 
late afternoon to early evening, and just 
before midnight. Central and South America 
should be workable at all hours except sun- 
rise. Skip will average 500-1,000 miles 
during the day and 1,500-2,000 mites at 
night. 

30-40 Meters 

These bands will usually be open between 
7 p.m. and 7 a.m. local time. Europe and 
the Near East will be best before midnight 
while the Far East and the Pacific will be 
best after 12 a.m. The Americas should be 
open atl night long. Expect short-skip to be 
from 1,000-2,000 miles. 

80-160 Meters 

December is a good month for these 
bands, given the long northern nights and few 
tropical disturbances. The greatest storm ac- 
tivity will occur in the South Pacific, so most 



static will occur on paths across thai area. 
The strongest signals are likely to be from 
Europe, Africa, and the Middle East be- 
tween sunset and midnight. Short-skip 
will typically fall between 1,500 and 
2,000 miles, Until next time, 73 and 
Happy Holidays! Jim Gray, [akdhc2 
pilot@yahoo.com]. 



QRP 

continued from page 59 

are equipped with. Just plug the various 
circuit boards back into their jacks. Then 
squeeze the two halves together and, with 
a bit of luck, it will all fit, I've found that 
it takes about a half a dozen tries before 
you get everything hack together tike it 
should be. 

HW-8 modifications 

We're still looking for more modifi- 
cations to the Heathkit QRP series. No 
matter how simple or complex, if you 
have a modification or a fix for a prob- 
lem with any of the radios, please pass 
it on to me. 

And, by the time this gets to print, 1*11 
have uploaded PC board layout and cir- 
cuits for the HD-1410 keyer on my Web 
site. Check them out at: [http://w f ww 
theheathkitshop.com] . 



The Digital Port 

contmued from page 50 

development wheels to slow to a crawl. But 
the work keeps going and, if anything, the 
tempo increases. It takes a mighty amount 
of brainpower to continue to push forward 
on these diverse fronts as much as Dave 
does. 

Ham bands are busy 

As this is being written, it is one of the 
hottest August months T can recall. It hit the 
hundred mark just 30 miles down the road 
from here yesterday. I like to stay inside 
during that kind of weather And I get lazy 
and like to play with the radio. 

Usually, this time of year seems to lack 
for radio activity a bunch of the time, but 
this year is giving plenty of action, I am 
seeing plenty of foreign callsigns on the 
monitor. Sometimes they are not direct, but 
at least they are being worked by someone 
in a better spot for the propagation. 

Other times, these signals are dropping 
in here just as well as they might in the early 
parts of Spring. 1 think some of this is be- 
cause the popularity of the digital modes is 
keeping hams involved, and when that hap- 
pens someone is on the air at the right time to 
take advantage of unpredictable openings. 

What I am saying concerns activity. It 

Continued on page 62 
73 Amateur Radio Today * December 2001 61 



The Digitrl Part 

continued from page 61 

doesn't have to be digital, or a certain band 
or mode. What matters is thai there are 
enough stations on the air and listening to 
make some of those thrilling contacts to 

IS? 

remote regions and faraway places. 

That beine said, we can iiet back to the 
fact that digital modes are causing a real stir 
in the ham ranks and a great percentage of 
the fun is to be had because of the new 
modes we discuss here. Keep it up, guys! 

One final note, I just received my first 
Digital Port-related E-mail due to an article 
in the September issue. Now I know that 
the new E-mail address is out there and 
working. Always glad lo hear from you 
folks in ham radio land. 

If you have questions or comments about 
this column. E-mail me at TKB7NQ 
@ worldnct.ail.neL] . I will gladly share what 
I know or find a resource for you. For now; 
73, Jack KB7NO. 



On the Go 

continued from page 53 

with proper preparation? Also, don't take 
offense if people confuse ham radio with 
CEL Sure, there's a world of difference, but 
to many people, "Ten-four good buddy *" 
doesn't sound significantly different than 
*'Roger and thanks for the Cue-so " 

Rule Number Three: Focus on the com- 
munity that encompasses ham radio and 
how supportive it is. There are classes to 
help people prepare for their first exam or 
an upgrade. If you prefer to study alone, 



there are "Elmers" who will be happy to 
answer a question or explain a concept, 
Maybe someone would enjoy being part of 
the Field Day group or the hamfest com- 
mittee. Get two hams together at a restau- 
rant on a regular basis and soon it'll be a 
small crowd enjoying the camaraderie. 

Rule Number Four: Let people know how 
much ham radio helps out the neighborhood 
and the community. When people think of 
a disaster, they may automatically think of 
such organizations as the Red Cross or Sal- 
vation Army. These agencies depend upon 
hams to help them in their relief effort If you 
live in an area that is subject to bad weather, 
you know how important Sky Warn is to the 
weather service. Hams' role in public service 
covers everything from the Christmas Parade 
to support at college football games. 

Rule Number Five: It's a hobby. It's sup- 
posed to be fun. Most of us want to share 
the fun with others we like, so focus on how 
much fun you've had with the hobby. Fo- 
cus on the fun you've had recently, not back 
in the good old days. 

Now, don't just sit there: Go talk to 
somebody about how great a hobby this 
is! If you help someone become a ham. 
let me know. If you've been thinking of 
becoming a ham and this helps make up 
your mind, let me know that, I can't wait 
to hear from vou. 




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QRH 

continued from page 7 

increased by about 20,000 since April 1 5th of 2000. 
At the same time, the total number of combined 
Technician and Technician Plus operators has 

declined. Also, the 
number of Novice 
class license holders 
has been deteriorating 
steadily since 1991, 
when the No Code 
Technician became 
the entry level license 
of choice. There were 
95,000 Novice license 
holders on February 1 , 
1 991 . Maia says that 
today there are only 
42,000, a decrease of 
60 percent. 

On the surface, it 
would appear that 
there is a significant 
net loss of hams who 
held telegraphy skills, 
but Maia says that this 
too may be inaccurate, 
since many Techni- 
cians do indeed have 
their 5 wpm Morse 



rating, as mentioned above. But they are now 
lumped in an FCC database that uses the term 
Technician to describe them all, In fact, this 
alone renders the term No Code Tech as being 
obsolete. 

And here's the real kicker. Reducing the Morse 
testing speed to 5 wpm has not accounted for 
any significant numbers of new applicants for 
ham radio licenses. What it has done is to moti- 
vate existing hams to upgrade to get new privi- 
leges, but that's about it, The bottom line is that 
the number of amateurs in each license class 
has merely been rearranged. 

Maia's conclusion? Amateur Radio is not grow- 
ing in relation to the growth of the nations popu- 
lation. He says that reduction of the Morse speed 
to 5 wpm and fewer license classes has had no 
discernible impact on growth in the United States 
Amateur Radio Service- Or at least none so far. 

Thanks to David Black KB4KCH and the W5YI 
Report, via Newsline, Bill Pasternak WABITg 
editor. 



Neuer shy die 

continued from page 8 

the position of deputy administrator at 
the EPA? Linda, now an executive with 
Monsanto, had worked for the EPA for 
10 years before heading Monsanlo's 
Washington lobbying office. Back at the 
EPA in a top position, she'll be making 
bioteeh food decisions which can affect 
us all. 

Anyway, here are some quotes from 
the vaccine article. 

"The grandson of Congressman Daniel 
Burton, of Indiana, was vaccinated for 
nine different diseases in one day. Be- 
fore i he vaccines he had been a healthy 
child. Now he suffers from autism/' 

"Autism has an onset before 30 
months ol' age. There has been a dra- 
matic increase in this (psychiatric) disor- 
der throughout the United States during 
the last six years. Statistics in Ohio show 
a 6,822 percent increase of this disease 
over that period of time. California has 
experienced a similar explosion in the 
number of new cases of autistic children. 
Nationally, we have had a 26 percent 
increase per year;" 

"Mercury is used as a preservative in 
many vaccines. With those nine vaccines, 
Congressman Burton's grandson was in- 
jected with 41 times the considered safe 
level of mercury in one day. Mercury poi- 
soning alone has been linked to autism, 
other learning difficulties, and emotional 
disorders. Children under 2 years of age 
do not produce enough bile to remove the 
mercury, so it deposits in their brains, the 
kidneys, and in other vital organs, For 
many persons this heavy metal is never 
eliminated from the bod v." 

Heard enough? 



62 73 Amateur Radio Today * December 2001 







Here are some of mv books which 

w 

can change your life (if you'll let 
'em h If the idea of beinj; healthy, 
wealth) and wise interests you, start 
rending. Yes* you can be all that, but 
only when you know the secrets 
which I've spent a lifetime uncover- 
ing* 

• Wayne 

The Secret Guide to Health: Yes. 

there really is a secret 10 regaining your 
health and adding 30 to 60 years of 
hcallhy living to your life. The answer is 
simple, but it means making some se- 
rious lifestyle changes. Will you be ski- 
ing the slopes of Aspen with me w hen 
you're 90 or doddering amund a nurc- 
ing horne?Or pushing updaisiev ' No, 1" m 
no l selling any health products, but I 
can help you cure yourself of cancer* 
heart trouble, or any other illness. Get 
lliis new, 2001 expanded edition 
U56p), $10(#05) 

The Secret Guide to Wealth Just as 
with health, you'll find thai you have 
been brainwashed by "the system" into 
a pattern of life that will keep you from 
ever making much mone\ and having 
the freedom to travel and do what you 
want. I explain how anyone can gel a 
dream job with no college, no resume, 
and even without any experience. I 
explain how you can get someone to 
happily pay you to learn what you need 
to know to start your own husiness, $5 
(#03) 

The Secret Guide to Wisdom: This 
is a review of around a hundred books 
thai will boggle your mind and help 
you change your life. No, I don 4 1 sell 
these hooks. They 7 ' re on a wide range of 
subjects and will help to make you a 
sen interesting person. Wan 11 you see 
some of the gems you've missed read- 
ing. You'll have plenty of fascinating stuff 
to talk about on the air. $5 (#02 1 
The Bioelecirifier Handbook: This 
explains how to build or buy ($155) a 
little electrical gadget that can help 
clean your blood of any vims, microbe, 
parasite, fungus or yeast. The process 
was discovered by scientists at the 
Albert Einstein College of Medicine, 
quickly patented, and hushed up. It's cur- 
ing AIDS, hepatitis C and a bunch of 
other serious Illnesses. Ifs working 
miracles! The circuit can be buili for 
under $20 from the instructions in the 
book. $10 (#01) 

My WWII Submarine Adventures: 
Yes, I spent from 1 943- 1 945 on a sub- 
marine, right in the middle of the war 
with Japan. We almost got sunk several 
nines, and tw ice I was in the right place 
at the right time to save the boat. 
What's it really like to be depth 
charged? And what's the daily life 
aboard a submarine like? How about 



the Amelia Earhart inside story ?If 
you're near Mobile, please visit the 
Drum. $5 (#10) 
Wayne's Caribbean Adventures My 

super budget travel stories - where I 
visit the haniN and Ncuba dive most of 
the islands of the Caribbean. You'll 
love the special Uai fare which let me 
visit II countries in 21 days, diving 
all bill one of i tic islands, Guadeloupe, 
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Cold Fusion Overview: This is both 
a brief history of cold fusion, which I 
predict will be one of the largesi in- 
dustries in the world in the 2 1st cen- 
tury, plus a simple explanation of how 
and why it works. This new field is 
going to generate a whole new bunch 
of billionaires, just as ihe personal 
computer industry did. S5 i #20) 
Cold Fusion Journal: They laughed 
when I predicted the PC industry 
growth in 1975, PCs are now die third 
laigesi industry in the world. The cold 
fusion ground llnor is still wide open, 
but then thai might mean giving up 
watching ball games. Sample: $10 (#22) 
Julian Schwinger: A Nobel Laureate's 
talk about said fusion — confirming its 
validity, $2 (#24) 

Dowsing* Yes, dowsing really does 
work. 1 explain bow and why it works, 
opening a huge new area for scientific 
research with profound effects for hu- 
manity. 52 ( -H4 > 

Improving State Government: Here 
are 24 ways that state governments can 
cut expenses enormously, uhile pro- 
viding far better service. I explain how 
any government bureau or department 
can be gotten to cut it* s expenses by at 
least 50% in three years and do tt co- 
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ogy, the State can make it possible to 
provide all needed services without 
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Ihe book, run for your legislature, and 
let's get busy making this country work 
like its founders wanted it to. Don* l 
leave this for "someone else" to do, S5 
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Mankind** Extinction Predictions: If 
any one of the experts who have writ- 
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catastrophe u hieh will virtually wipe 
most of us out are right, we're in 
trouble. 1 explain the various disaster 
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the poles will soon shift (as they have 
several times in the past), wiping out 97% 
of mankind. Okay, so he*s made a long 
string of past iucky guesses. The worsi 
pan of these predictions is the accu- 
racy record of some of the experts 
like Hapgood. Einstein, Snow, Noone, 
Felix, Stricter. S5t#31> 
Moondnggle After reading Renews 
book. \A\.\ Mooned America, I read 
everything 1 could find on our Moon 
landings, I watched the NASA vid- 
eos, looked carefully at the photos, 
read the astronaut's biographies, and 
talked with readers who worked for 



NASA. This book cites 45 good rea- 
sons I believe the whole Apollo pro- 
gram had to have been faked 55 (#32) 
Classical Music Guide A lis* of 100 
CDs which will provide you with an 
outstanding collection of the finest 
classical music ever written. Thi-> i^ 
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stress. Classical music also raises 
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wait'U you hear some of Gotsehalk's fabu- 
lous music! $5 (#33) 
The Radar Coverup: Is police ratkn 
dangerous? Ross Adey K6UI, a world 
authority, confirms the dangers of ra- 
dio and magnetic fields, including our 
HTs and cell phones. S3 (#341 
Three Gatto Talks V prize-winning 
teacher explains what's wrong with 
American schools and why our kids are 
not being educated, Why are Swedish 
youngsters, w ho start school at 7 years 
of age, leaving our kids in the dust * 
Our kids are intentionally being 
dumbed down by our school system 
— the least effective and most expen- 
sive in the world, $5 (#35) 
Aspartame: a.k.a, NturaSweet, the 
stuff in diet drinks, etc.* can cause all 
kinds of serious health problems. Mul- 
tiple sclerosis, for one. Read all about 
it two pamphlets lor a kick. I#3S) 
$1 Million Sales Video: The secret of 
how you can generate an extra mil- 
lion dollars in sales just by usim: PR Thi* 
will be one of the best investments \ on 
or your business w ill e ver make. 540 (152) 
Reprints of My Editorials from ?$* 
\fery few things in this world are as we've 
been taught, and as they appear. I blow 
the vvhisde on ihe scams around us, *»ueh 
as the health care, our school system*, our 
money. the drug war, a college education, 
sugar, the food giants, < jut unhealthy food, 
fluorides, RMF 7 s. NutraSweeU eft* 

1996 Editorials: 120 pages, 100 choice 
editorials, SlfM #72) 

1 997 F d it or ia Is : 1 4 tf f u n - packed pages . 
216 editorials. S 10 r#74) 

1998 Editorials: 168 pages that'll give 
you lots of controversial things to talk 
about on the air S 10 1 #75) 

1999 Editorials: 132 pages of ideas, 
book reviews, health, education, and 



anything else I think you ought to 
know about. 510 l#76) 
2000 Editorials: 76 pages (thinner 
magazine as a result of our slowly dy- 
ing hobby) 55 (#77) 
Silver Wire: With two 5-Ur pieces of 
heavy pure silver wire + three 9V bat- 
teries you can make a thousand dol- 
lars worth of silver colloid. What do 
you do with it? It does what the antibi- 
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Use it to get rid of germs on food, for 
skin fungus, warts, and even to drink, 
Read some books on the uses of silver 
colloid ifs like niagie. $15 (#80) 
Silver Colloid Reprint, April 91 article 
on a silver colloid maker, hi sit >ry. and how 
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Colloid Kit Three 9V battery clips, 2 
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and instructions enabling you lo in- 
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73 Writer's Guide: lis easy, fun, can 
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Cold Fusion Six-Pack: Six Cold Fu- 
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up to speed. $20 (#19) 
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makes an air-light case Ihal NASA 
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will convince even you. $30 (#90) 
Last Skeptic of Science: This is 
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bunch of accepted scientific beliefs - 
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Dark Moon Video; 222-iiiinuie expose 
nailing NASA with their own photos. 
If you've watched the NASA films of 
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you wondered at their weird gait. 
Waif I ] you see it speeded up. It looks 
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They catch NASA in dozens of give- 
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Box 41ft, HunLO ck NH 03449 



.x 



Name 



Call 



Ad dress 



City-State-Zip 

the number* tit Uw bracken or cop; : » J ci 4rk the boots you waia Add $3 xfh per total 

order in US i%5 priority uuilJ. $6 Can + S10 foreign , 

Order total: US$. Pboae (for CC ordain . 



Mi /Visa for order* over $10. f 



Expire 



www.*iytttgreen com * phone outers: 603425-474T * tax. 6Q3-3ft-33Q5 • w2nid#iol.Dam 
3 Yes! Putmedawti Jbriyarof ZJ Joronly $25<a flat). Caiuda USS31 Ffccetgn US$44 by 

D I need some indmirul iLrengtli stress reduction *0 fend me your Adventures In Mu\ic CD catalog 
Allow 4 week* for delivery except roceigu. though *c try to gel most orders liwpped in a day or two 
Your e-maiJ addrwv . , 



73 Amateur Radio Today • December 2001 63 



Barter 'n' Buy 



r 



Turn your old ham and computer gear into cash now. Sure, you can wait for a hamfest to try and dump it but you know you'll get a far more 

realistic price if you have it out where 100,000 active ham potential buyers can see it, rather than the few hundred local hams who come by 

a flea market table. Check your attic, garage, cellar and closet shelves and get cash for your ham and computer gear before it's too old to 

sell. You know you're not going to use it again, so why leave it for your widow to throw out? That stuff isn't getting any younger! 

The 73 Flea Market Barter rV Buy, costs you peanuts (almost) — comes to 35 cents a word for individual (noncommercial!) ads and S1 00 

a word for commercial ads Don't plan on telling a long story. Use abbreviations, cram it in. But be honest. There are plenty of hams who love 

to fix things, so if it doesn't work, say so. 

Malce your list count the words, including your call, address and phone number. Include a check or your credit card number and expiration. 

If you're placing a commercial ad T include an additional phone number, separate from your ad. 

This is a monthly magazine, not a daily newspaper, so figure a couple months before the action starts; then be prepared. If you get too many 

calls, you priced It low. If you don't get many calls, too high. 

So gel busy. Blow the dust off, check everything out, make sure it still works right and maybe you can help make a ham newcomer or retired 

old tinner happy with that rig you're not using now, Or you might get busy on your computer and put together a list of small gear/parts to send 

to those interested? 

Send your ads and payment to: 73 Magazine, Barter 'rf Buy, 70 Hancock Rch, Peterborough NH 03458 and get set for the 
phone calls. The deadline for the February 2002 classified ad section is December l(X 2001 . 



220 MHz Award; see W9CYT on WWW.QRZ. 
COM for information, BNB645 

K8CX HAM GALLERY [http: hamgallery.com], 

BNB620 

TELEGRAPH COLLECTORS PRICE GUIDE; 
250 pictures/prices. $12 postpaid. ARTIFAX 
BOOKS Box 88. Maynard MA 01754. Telegraph 
Museum: !http:/toltp,com]. BNB 1 1 3 

New miniature oscillator modules are now avail- 
able ... all under S20 ... plus our great reference 
book is still for sale. Write to RMT Engineering, 
6863 Buff ham Road, Seville OH 44273 or see 
our Web site at [www.ohio.net/-rtormet/ 
index.html/]. BNB640 

RF TRANSISTORS TUBES 2SC2879 r 2SC1 971 , 
2SC1972.MRF247,MRF455 1 MB8719,2SC1307, 
2SC2029, MRF454. 2SC3133 r 4CX250B, 12DQ6, 
6KG6A, etc. WESTGATE r 1-800-213-4563. 

BNB6000 

METHOD TO LEARN MORSE CODE FAST AND 
WITHOUT HANGUPS Johan N3RF Send $1 00 
& SASE. SVANHOLM RESEARCH LABORATO- 
RIES, PC Box 81 , Washington DC 20044 USA. 

BNB421 

Cash for Collins: Buy any Collins Equipment, 
Leo KJ6HL Tel./FAX (310) 670-6969, [radiOleoO 
earthiink.net]. BNB425 

Browse our Web site and check out the 
"Monthly Special" TDL Technology, Inc. [www. 
atianet.com/tdl]. BNB500 



MAHLON LOOMtS. INVENTOR OF RADIO, by 

Thomas Appleby (copyright 1967), Second print- 
ing available from JOHAN K + V. SVANHOLM 
N3RF H SVANHOLM RESEARCH LABORATO- 
RIES, P.O. Box 81 , Washington DC 20044. Please 
send $25,00 donation with $5.00 for S&H, 

BNB420 

Ham Radio Repair, Quality workmanship. All 
Brands, Fast Service. Affordable Electronics 
7110 E. Thomas Rd., Scottsdale. AZ 85251. Call 
430-970-0963 or E-mail [HAM SERVICE® AOL 
COM]. BNS427 

64 73 Amateur Radio Today • December 2001 



SATELLITE TV — Large selection of items at 
reasonable prices. We specialize in Big Dish 
TVRO C & Ku Band equipment. Check us out at 
[www.daveswebshop.com]. BNB646 

HEATHKIT COMPANY is selltng photocopfes of 
most Heathkit manuals. Only authorized source 
for copyright manuals. Phone: (616) 925-5899. 
8-4 ET. BNB964 

"MORSE CODE DECIPHERED" Simple, el- 
egant, inexpensive, comprehensive, logical, easy! 
E-mail [judlind ©earthlinlcnetl, BNB428 

Electricity. Magnetism, Gravity, The Big Bang. 
New explanation of basic forces of nature in this 91 * 
page book covering early scientific theories and ex- 
ploring latest controversial conclusions on their re- 
lationship to a unified field theory. To order, send 
check or money order for $1 6,95 to: American Sci- 
ence Innovations, RO> Box 155, Clarington OH 
43915, Web site for other products [http://www, 
asi_2000, com], BNB100 

COLLOIDAL SILVER GENERATOR! Why buy a 
"box of batteries* for hundreds of dollars? Current 
regulated. AC powered, fully assembled with #12 
AWG silver electrodes. 574.50, Same, but DC pow- 
ered. S54.50. Add $2.50 shipping. Thomas Miller. 
216 East 10tti St., Ashland OH 44805. Web ad- 
d ress [www. b i oe lect ri fierce m ] . B N B34 2 

COLD FUSION! - FUEL CELL! - ELECTRIC BI- 
CYCLE! Each educational kit: (Basic - $99.95, De- 
luxe - S1 99.95. Information - $995., CATALOG - 
$5.00. ELECTRIC AUTOMOBILE BOOK - $19,95. 
KAYLOR-KiT. POB 1550ST Boukier Creek CA 
95006^1550, (831) 338-2300. BNB128 

ANTENNA SCIENCE: Why do antennas radiate 
electromagnetic waves? Learn tor yourself from 
this enlightening paper by MAX RESEARCH. 
Gain an understanding of the radiation mecha- 
nism of antennas! Written In a clear style for radio 
hobbyists, inquisitive amateurs and experimenters, 
$4.95 ... pprj. Order from MAX RESEARCH, P.O. 
Box 1306. East Northporl NY 11731, 

BNB426 

DWM COMMUNICATIONS - Neat stuff! SASE 
brings catalog! POB 87-BB. Hanover Ml 49241 . 

BNB641 



Exotic 2002 Caribbean Hamboree ■■ Join us in 
meeting with Caribbean hams* visiting interest- 
ing Georgetown, Guyana, operating from great 
OX location, March 29-31/02. For information 
contact KK4WW, 8R1WD or [www.public.usit. 
net/dlarsen]. BNBS40 



To place your ad in 

73 Magazine 

call 

Evelyn Garrison 

1-425-557-9611 



UNITED STATES POSlAl. SERVICE™ Statement dOptmtify Manife- 
BfBt, ami Circulation i Kctjntrrtl by .l^t'-KC H>85ji I ■ ftiMii-jn*rRTlite:73 
\nijtk"jr R*diQ Into) ■ j > PubTieauon N 22 1 1 » filing Date 10- 

1)1-01 (4 1 tauc Frequent?; Monthly <5j So of i»tim Published Annuity. 
H ir> \ i u i ii 4I Sutncriptim Prwtr.SZ4.97 i 7> Cum? kv Mm\ tu$ Addresi. 70 
Hancock K«a1 hrteroomuffrt Hillsborough Cij , Nil IW4UH JO? ($ Com- 
plete *tUrm «rf Headquarter* or General friiinnt Off*;? of puhltiber 
Primer i 70 Hancock Roud. Peterborough. NH 0i45I HOT i!h hull N urn 
jtvl Cimplew Mailing AJdrrwct of rHiBalaj . E*i tw, nut Mmiipnt &*nw. 
m Crrtn .'« Hanencfc Raid, PevtfrHwfh. NH <R4Mf. Wayne Green. 
70 Hancock few! Pettrten ngj a. NH 03451: roy« Smidfc. 70 Hancock 
Roatl Pwrtumgh, NH 0345* I JO) Owner Sfcaferutttt Way Ud, PO Bom 
60. Hatuct. NH C-Ui'i-. Wayne Green. PO ftm 60 HmcocL NH ■ W* 

t ttaldmf t Peneni m Mn of Tool Araoms of Bund* Mutti-agea. « 

Othe* SenirMci: None 1 12 1 (Fur completKm by nraproirt cttmu*Lnm&\ 
■ 1 * r PuH*cam*) Name- 7 \ Amateur Kacbo Today' i 14 » t«*oe Uuc fur Cnen- 
U!t:n Din Beta* May 2001 tl5j t-\um and Nature at CirraUtniv. Avtt- 
t#e Ni* Cuntes Each tarn Duraur Fkecectoe 1 2 Mouth*. Acuul Na. C ijpiev 
of Sihf k lue Publiffaed Nearest id King Our o i Twil No. Cunin (Net 
Pre» Kuni I I.W4: 11^41 ib; Paid and/iw n^temed CinrulaiuK) -lit Paid/ 
Hcqbevlffl Huluck-Ciitinily Mail SabKnpioni, Slulcd on Fan 154 1. < In- 
clude idvcrtiwr'i proof and excliatiftf vapits.) ia477. 1(1,001 i2> Paul (n- 
LnuHly SulmcrirMioi» Stated on Form 3541 E>: ill Sale* Through Deilen 
and Carncrs. Sircvl Vrndors. Couoier Sulea* anil iMvtt Noo USPS Pud 1>i»- 
inliuU4iti x<tl. Utt \ 4 1 other Clatbei hCitted Through ihr USPS L00; 100 W) 
Ti«tJ I'j i kv'tfuested Ofculaliiin (Sum ni l^lh \2). £& uxl i4>] 

1 1 .469; I0/J4I (djr-reeDHtribotiODby Mail rSuinfiLcv ('umpHmqjuaiy. and 
I.Uliff Pf0*J i \ t Qulfiidc-CuuTuy as Siaifd im r-onn Q4 1 [); f) \7\ In-Couuty 
fll Staled nil From 1*41 R <3p Dtlier CllLsi«?^ MmIlsI Tlii'iuigh Uw USPS 
230] MO im l-'n-c DibinhuiKiii Ouisidc Hit- Mini iCjitIlts nr ( Hlirr M«mi}Ul 
ii (l i Ti.mil Free Diwrlliulloil (Sum nf iSti mul 1 5 p) 250: L^il i^i IVHwl Dlstri- 
hm Inn i S urn i > r 1 S t and 1 5 H .7 i 9: 1 1 , 1 9 1 (hj Copies Nm Di Kiri hu I ati 275 ; 
4?2 li h Tot*! (Sutfl tit' £5g and 15b, i 11*994; Ll^O CJj Percent I'aitl ainl/iir Rc- 
que*lrd Clrtulalhin i I5c.'l5g x 100) 98^-; W*(16j TWi SuiUffneilt nf Owner- 
slii|i will Ke priiititl in (he Decemher 0| i$su?ui tin- nuhl Icatiea ( t?> Signature 
and Title nf Ldtinr. HuhJi^hiT, Huaiiuss Mhjulilt. it < *wiu,t l-rjaite* Kyvtuineii, 
Busnim Manager D.m- ! " '- "I I certify Uui ill mttrmuinin tuin^hrd ou 
rhu Inmi ii true and complete I traders usd duL ouvuijl- ula» lumialia false 
i t ^ni lilcading bsfcniMUi k\ on this form or who amht rnutefial or JaforaiaiuHi te- 
k|ue**cd on the form may be subject to cnnuhal lanmon ruufw/iffjt fi*fi and 
imfitiicumenn andror civil urttwre ilndtmfihf tm( prwJi,,- 



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Distributed in North America by ATOC Amateur Distributing LLC 

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Sptofica&ons subject re charge MttoU notice or ofaigafion Periorraoce specifications onty apply to 
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