another way to join the fun on 47 Sunspot Predictions for 1980

176 Pages·2009·46.99 MB·English

42 CB-t0-10 FM Continued 82 Working with FETs
- another way to join the fun on part III : the so urce fol lower
-e
29.6 WB2EQG · WA2SUTINNN,ZVB
47 Sunspot Predictions for 1980 66 rr:::::;;jjI Microcomputers and Your Satellite
~
- whither propagation? ..... WA3NKP Station
- part 11 : ground station antenna
50 An End to Dials and Meters?
bearings WB8DQT
- nope . . . but di screte LEOs make an in-
teresting substitute Staff 92 rr::::iiI Design Practical PLl and Timer
~
Circuits
54 The Paper, the Stalion, and the Man
- program generates stand ard Rand
-a brief history of the New York Times
C values for 567s and 555s. . .. N2RG
rad io stations W3CFC
96 rr::::iiI DUPECALl ... for Your Next Co ntest
63 QRP from Canton Island
1m
- let your SWTP do the duping
- proving all things are possible
.......................... K4TSY
. . . . . .. . . . . . . . . . . . . . . . . . .. . . . KH6GB
103 Add 'Em Up: An IC-22S Programmer
66 In Search o f Power line Interference
- select a frequency by adding the set-
- how to fi nd it and get it stopped
tings of three switc hes AA4RM
...... ...................... W4PZV
106 The Oscilloscope Survival Course
70 Hard Copy from your Xite. Terminal
-the finer points of scope usage
-when a video display isn't quite
· McClellan
enough WSSBL
114 6m Fun with the FT-625RO
72 Excavation Litigation
-six is hot, so why not? W60lF
- don't dig a hole without your lawye r
....... ....... .... . ........... Hechl 116 Albert and his Momentous Theories
- a layman's look at Einstein. . . . . Lutus
74 Noise Rejector II
- an exciting sequel. WB6ZYK 134 Go-Carl
-wheels fo r your test equ ipment
76 Trouble-Free ID Timer
· W4MEA
- fo r repeaters WA8HE8
78 So You Want to Build a Beacon?
- here's how K9EID
Never Say Oie- 4, Looking West-18, OX - 20, Awards- 28, Contests- 30, Microcom
puter Interfacing - 32, New Products- 34, Lellers- 35, Leaky Lines- 36, Ham Help- 36,
o 39, 151, 152, 154, RTTY Loop- 39, Dealer Oirectory-102, FCC-112, OSCAR Orbits
153, Revie~-1 53, Correclions-1 54, Social Evenfs -1 55, Propagation-1 77, 1980 Inter
national SSTV Conlesl- 177
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BC-2 Desk Battery Ch" rger 31.00
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BP-4 Extra Battery P"ck
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LC·3 l eather Case
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Ship me all indicated on above chart.
o o o
Check Money Order D MC VISA
s _
Enclosed is
Expiration Date
C"rd Number
,
xtets 52/52 I I - -+,I - ,I I
__________________ Address _
Name
State- _ Zip _
City
- - - - - - - - -- -cc- -,,---,---,-----,-,-----,-cc:=-:c-=---------------
Signature
Info
Manuscripts
CorlI"Dut,onl ,n the form 01 manu
scripts wl\h d....'ng. sr.dlot pl'oQlc>
g••ph, 'fa """'" .ne and w,n be eon· W2NSD/i
side«td fOf poss.ble publicatIOn. W.
can .""..... no ...potI1o,l)ohly 'or ~
or damage to . ny maI8l'1", PI....
enelose • stamped, selt·edd'eued
ltflvelo(le . ,11. each lubm._. Pay NEVER SAY DIE
1TIltf\\ IOf the use 01 .ny unsolle"'"
mater.,1 ...,11 be ~ upon aee.ep.
I. nce. " II eontntluhonl should be di·
'ected to ,"'- 73 «Iilorlsl ollie,".
editorial by Wayne Green
-_ to Wrote 10( 73" gutde!i.....'.
Iv.ilable upon request
Editorial Offices.
Pine St...,
ASIA FLEW watches , nr -us , TVs, TV around the world in 1959, back
Petflfborough NH 03<t58
cameras, and VTAs, II you are when seoul was a large village
Phone: [phone]ot-387. Next OCtober, if you can get
Advert ising Officesl away, you should goon the IEEE able to come back without some more than a city. Today it
gadgets, you are better than I stretches for miles and has a big
tour 01 Asia. You'll love it.
Pine Street
am. We brought back a Sanyo shopping district, complete with
Peterborough NH QJ.t~ Sherry and I went in 1979 and
Phone 6OJ..924-7138. 924·71;W midget TV/radiO/clock, a mu. several department stores.
it frustrates me to have that
steer calculator, and a calcu Sgt. Charles Milhans WA7QYI
much fun without getting others
Circulation Offices,
lator watch exactly like the /HL9UN took off several days to
to enjoy it with me. How would
P"'O Sireet SeikO, but at about halt the $275 show Sherry and me around
you like to get a ham license in
Pel,,'DofOUgtl NH 030'5011
Seiko price. Korea. He's there with the rather
PIlooe, 603-924·7296 Korea and get on the air as a DX
The hams on Guam are dying sizeable U.S. contingent. My
station for a while? How would
Subscription Bctes
to meet you and set up one hell ham ticket had been arranged
you like to meet the only ham on
In tile Ul\I1l1d Stal•• and Pone,.ions; Taiwan, Tim Chen BV2A? Or get of a party. So are the hams in ahead of time and was quickly
One Ye.. (12 1,IUHf$18 00
Hawaii . , . so you can get some issued by the U.S. Amateur
together with most of the active
Two Ve••• (24 ,n"'l) S30.00
Three Year. (38 "sun) 1.45.00 hams in Hong Kong for a din "rest" on the way back. The Radio Operations Director, Ma·
L,'etime subscription $240.00 whole tour was under $2000 per jar Smith. Charlie then got us
ner .. . and some operating? A
erec
Elsewhere_ visit to the hundreds 01 person, which is very reason together with Mike Wengert
trootce stores in Tokyo'S Aki able considering that they put HM00M, an American living In
Canada- add $2,00 per y... unless
paid w,th U.S. currency. habara section is something on a lot of free dinner part ies Seoul as a civilian. Mike is a
and entertainments. If we can Korean-speaking radio corn
you will see nowhere else on
All other lo,eign_one yea. only
$26.00 payable in U.S, currency Earth, get about 20 hams to go on the mentator who runs a weekly ta
lhrough a U S. ban~, ~Surface ma,11 The tour was set up to coin next trip, I think we can work up dio program telling the Koreans
To subscribe, cide with electronic shows in hamfests In at least seven coun about the reactions of the rest
tries. Game? of the world to events In Korea.
renew or change Taipei, Osaka or Tokyo, Seoul,
Mike and Charlie took us all
and Hong Kong. These shows
on address.
HL9WG over town, interpreting lor us
have the latest in consumer
W"la 10 13 Alagu ina. SUbsel,pt,on
where needed and introducing
electronics, including some The hams In Korea made my
Dapa.lmanl, PO Bo_ 931, Fa.ming.
us to the marvelous Korean
dala NY 11737. Fa. 'ana",als and ham gear, plenty of mtcroccm visit there unforgettable. I'd
changu 01 add'n a, includa me ad· food. I'd heard a lot about kim
puters, calculators, digital stopped off there on a flight
d"n labei I.om YO!.l' most .ltCent
chee, a fermented cabbage,
inue 01 73. For g,1t aubac'iphons, in·
elude yO!.l' name and aOd'na as weli which is served with almost
as those 01 g,1t 'ltC,p,enta, Poal·
every Korean meal. Not being a
masl• •. Send lo,m ' 3!>79 10 73
AlallaUne. Subscropl,on Se.v.c••• big fermented lood fan, I ap
1',0, Bo. 931, Fa.mlngoa'e NY 11737.
proached it with hesitation. It
was great! It had some of the
Subscription
tang you get with hard cider
problem or IlUDQUAITIIS UlIlTID UTK*$ (OMMI,,/
which is fermented.
UlmD STATES fOICB, IOIU 'PO IJU01
question, The most exciting part of the
visit to Korea was the trip to put
Wrola to 73 Magu m• . SUOS<:"DIIOn CERTIFICATE OF AUTHORIZATION
Depar1menl. PO Bo_ ~1, Fa.m,ng. my foot into North Korea. I'm a
dale NY 11737, Please include an ad· FOR AMATEUR RADIO STATION
collector of countries visited, SO
d'es. laDeI.
I hate to make a trip without aoc
13 Magu m. ItSSN 0098-901011$pub n;, ,, .. _. ...... . _
hshed monlhlyby 73, Inc" P"'e Street, ing at least one more country,
__ .... ..,. .. c .. e-r
Doof, _ _
Pele'tlO'ough NH O~S8 Secof1(l
c .. _ _ .. _ _ even if it is only a step over the
class PO$t~ ,. """dat PetflfDo<ough
- - -
NH ll3ol58 and .t add'llonal ma,lIng .. .. .A·~T .-u.,. --,_ .. __ border. In this case, Charlie had
ol/ten Copyrlglll ICl 19E!O by 73. Inc. ..
been talking with Chris wen
All '!gllls.eserved No par1 01 Ill,s
puDl1C811()fl may be .ep"ntell 0<ollle<· strom HL9KL.. one of the Swe
"'sa 'ep<oduced ...,11lOu1..."n.... "". ... - dish team minding the South
m,s$lOfl I.om tile puDl,si>e<.lII,c.ol<lm ,
Korean border at Panmunjom,
Ed,I,Ofl - Un,ve's'ty lIIoc.ololm, Ann
Arbo< 111148106 and had made arrangements for
us to come up and visit.
W2NSDI1 became HL9WG in Korea,courtesy of the UN Command. Charlie, Sherry, and I started
4
TRIO-KENWOOD COMMUNICATIONS INC.
1111 WEST WALNUT / COM PTON. CA 90 220
N e w 2 - m e t e r d i r e c t i o n .
A compact transceiver with F M / S S B / C W plus ...
T R - 9 0 0 0 • Extended frequency coverage ... 143.9000 • CW sroetc ne
148,9999 MHz
nrne
• Automat ic selection of AGC constant
• Five memories:
with MODE switch (slow for SSB and fast
M1 - M4 .,.tor Simple x or + 600 kHz repeater
for CW)
Kenwood's done it againl Now, it's the exciting offset
TR-9000 2-meter all-mode transceiver .. .cern MS. ,.for nonstandard offset tmerncnaes Improved power module for reliable and stable
>
plete with a host of new features. Combining transmit and receive frequency Independently) linear RF output
the convenience of FM with long-distance SSB
• Scan of entire band automatic busy stop • Selectable power outputs , . 10 W (H1l/1 W
and CW in a very compact, very affordable
and free scan (LOW)
package, the TR-9000 is the answer for any
serious Amateur Operatorl Versatile? You bet! • SSB/CW search , sweeps over selectable • Mobile mounting bracket easy to mount.
Because of its compactness. the TA·9000 is 9 9 ·kHz bandw idth segments. l or easy with qurck -releese levers
ideal 'or mobile installation. Add on it s ' ixed morutonnq
station accessories and it becomes the obvious • LED Indicators .. ON AIR. BUSY, and VFO
• UP/DOWN rmceopoone (standard)
choice for your ham shackl
sounds wIth each frequency step
TR·9000 FEATURES: • Accessory terminals on rear panel. KEY.
• NOise blanker .. ehrnmates pulse-type noise BACKUP DC,STBY,EXT SP,DC, TONE INPUT.
• FM. USB. LSB, and CW ... en popular modes
on 5SB and CW
and ANT
• Compact size .. only 6 11/16 inches wide X
• Low-noise, dual-gate MOSFET and two-stage
See your Authorized Kenwood Dealer now for
2 21132 inches high X 9 7/32 inches deep
monolithic crystal filter for improved receiver
details on the TA-90OD ., the new direction In
front-end characteristics eu-
• Digital dual VFOs .. ,with selectable tu ning z-meter mode transceivers!
steps of 100 Hz, S kttz. and 10 kHz. conve
• AIT (receiver incremental tunmg) for SSB and
nient tor each mode of operation
CW ... etrecuve even on memory channels
• Digital frequency display ... five, four Ofthree NOTE: Price. speclflcallons sub/eel fO change
dIgitS. depending on selected tuning step • AF gam control wlfhouf »cnce and ob/lgahon
Sublect to FCC "Pproval
MATQtING ACCESSORIES FOR AXED-STATION
OPERATION:
• PS-20 power supply
• SP-120 external speaker
• 80-9 System Base ...with power switch, SENDI
RECEIVE switch lor CW operation, backup
power supply for memory retention (8C-1
backup power adaptor may also be used for
this application), and headphone jack
all bring those glasses with
croucno eyebrows and big nos
Staff
es ... and everyone wear those
while visiting the place. That
ought to drive them crazy . .. or
at least crazier.
EDITOP./PUOLlSHU\ We had a very nice lunch with
Wayne Green W.2NSO/t
Chris and the Swedish peace
Ell£CUTIVE YKE P"H IDEMT
Sherry Smythe keeping staff. It's much like a ut
COp-POllAn COtHI'.OLLEP. tie country club up there . .. with
A'an Thulande'
the exception that things could
ASSISTANTPUblISHER
Jell'ey Delray WB8BTH go to hell at any moment. After
AOMIIlISTP;ATIVE ASSIST"'"'
lunch, I sat down and made a
DoUy Gibson
few contacts with Chris's rig.
MAHAGIHG [ 011011
John Buroett Since someone had just been
ASSISTANT MAM....GIHG kidnapped from our side the
[OIfO"
night before, it was exciting to
Susan Philbrick
HEWS EDITOR walk along the border on a
Gene Smarte WB6TQVI1
wooded path, hoping that this
EDITOP.IAL ASStSTANn Just after talking with W2NSDI1 Irom Seoul, using my HL9WG ceu.
would stay a peaceful visit.
Elisabeth Blackmore
Richard Phenix this photo was snapped. Next 10 me is Namil Kim HM1HJ, seated is
On our first night in Korea,
PRODUCTION MANAGER Mike Wengert HMOOM. our new importer lor Instant Software in
sen
NOllI WB1ARP Sherry and I attended a dinner
Korea. and on the right is Hea-Soo Ree HM 1BO, the president 01 the
ASSISTANT PP,OOOCTlON arranged by the tour . .. adinner
Korean Amateur Radio League. 10:15 at night there is 9:15 am Ihe
MAHAGE"
show at the Sheraton Walkerhill
Robin Sloan
same day back home.
" P,TDEPAP.TMEHT Hotel. The dinner was fine, but
Steve Baldwin
the show was crummy ... not
Bob Drew
out early in the morning on a bus at us, the intent being to have
Bruce Hedin quite up to Gong Show talent.
Kenneth Jackson
and arrived at the demilitarized movies of us waving and imme
The next night, we had another
Michael Murphy
Dian Owens zone (DMZ) after an hour or so of diately call for a meeti ng be
tour dinner and then went to
Nancy Salmon
bussing from one small village cause our waves were conslo
Patrice Scribner visit Charlie, where I got on the
John While
to another. It was a bit sabering ereo as obscene gestures and
air and worked a bunch of Ws.
llOOK PUbLICATIONS
when we signed the agreement thus a breaking of the peace
Jim Perry The next night we went to see
that the U.S. would no longer be agreement. Without waving, we
BOOKPP,OOUCTIOIl
Mike. The head of the Korean
Emily Gibbs responsible for us as we entered went into the building, and, with
Chris Brown N1AUI Amateur Radio League (KARL),
the zone. the North Koreans watching ev
PP.ttolliNG Hea-Soo Ree HM1BO, came
Gary Steinbach, Mgr. Chris took us all around the ery move and filming, we wal ked
over and visited, as did the
PIIOTQGIU.PHY
border area, showing us the about twenty feet into North
Bill Heydolph KARL Supervisor, Namil Kim
rece Cluff meeting building. which is right Korea . . . snapped some pic
HM1HJ. I got on the air for a
Terrie Ande,son
on the border, with the North Ko tures as proof _. . and hastily
TYPEUTTltoIG while using Mike's rig and made
reans taking pictures of us every went back into the South Kore
Barbara LaW
quite a few stateside contacts
Sara Bedell
inch of the way. They had tele· an half of the building. Country
Rhonda Clapper ... the best one being with
Sandie Gunseth scopic cameras for slides and number 91 for me. Whew!
W2NSD, my home station at 73
llOOKKEEP(1I movies. We'd been warned not What I'd like to do next time is
Knud Keller KV4GGI1 MagaZine, operated by Jeff
to wave back when they waved have a bunch of hams along and
D"TA EHrllY DeTray, the Assistant Publisher.
Cathy DeSilva
No sooner were we getting
WIISCIIIPTIOH
e _ ..
SALESMAHAGEII _ ~ used to modern day Seoul than
"
Deb'a Boudrleau
we were on the plane for Osaka
CIP.CULATIOH MAHAG(P'
and a second electronics show.
Harold Stephens
AUISTAHT CIP.CUl ArlOH The Japanese didn't have as
MAHAGEP.S
many incredibly loud hl-f ex
Donna Taylor
Judy Waterman
hibits as the show in Korea;
CIP.CUlATIOH
however, it was a much larger
Pauline Johnstone
show ... spread out in three big
IllJlK SAl U MAHAGEk
Ginnie Bouaneau buildings. One was devoted
SHIPPIHG
mostly to parts and equipment
Mark Dendy
Bill Barry modules and the other two were
P.(C(PTlOHIST
consumer electronics, Including
Doni Ja",ls
quite a number of rnrcrocc mcut
"S)()(IATES
,
ers. The state of the art has pro
Robelt Baker WB2GFE
Sang",r Green
gressed in the last year in color
Dave Ingram K4TWJ
Larry Kahaner WB2NEL home TV cameras. I was partie
Joe xasser GJZCZ
ularly interested in that because
Bill Pasternak WA61TF
John Sctruhz W4FA
I'd like to update my theory
Peter Stark K20AW
audio tapes with video . .. in cot
COMPUTER PRQGRAMMIM<;
Richard Dykema All 01the main roads in Korea have these underpasses. The idea is OL
ADVUl,JIStHG
that should North Korea invade the country, explosives in the sup' They had some food booths
Aiine Coulu. Mgt.
Kevin Rushalko port columns would blow Ihem away, leaving tne roads completely at the show, sowe lunched there
Nancy Ciampa
blocked by the debris from above them. This reminded me a bit 01 and then caught our tour bus for
Marcia Stone
Louise Holdsworth
the rails which are designed to spring up out 01 the roads (via radio a visit to the big shrine at Osaka.
Jerry Merrifield
Lori Mugford control} in Switzerland should they be invaded. These are on eu A couple of rolls of film later, we
Aita Rivard
mountain roads and would mosl effectively stop tanks and other were bussed back to downtown
traffic. so we could see the department
6

,
Japan Airlines gets you ready lor the world of chopsticks on your Here I am shaking hands with Yasushi Oshima, the mayor of Osaka,
way to Asia. Here's Sherry getting practice with some noodles. during my recent visit to that city, That's the key to the city hanging
around my neck . , , that and 100 yen got me a ride on the subway.
The mayor was most gracious, and, in addition 10 the key, he laid a
beautiful photo book about Osaka on me. His aide turned oul 10 be
JE3DTA.
C11IlCULnR11511
A Japanese subway train is remarkably like those in our country . . .
with a few exceptions. First, they are incredibly clean. Even the
'racks are clean, with no papers or cans thrown down there. Second,
they are filled with Japanese . . . and the ads are all in Japanese. A
It isn't very prepossessing . . . just a carved wooden sign over the en
ride is charged by the distance, much like the London Underground,
trywa y. Upstairs are the offices ot the China Radio Association, with
with short distances costing about 50¢ and longer about double
all but one at the membership being not licensed. The Association
that.
publishes a quarterly magazine, with articles in the most recent
issue covering saleillte business systems, sunspots, Skylab, the
stores. Whoops! There's a Mc
radio and radar facilities at thelf new inlernational airport, the
Donald's! I found a number 01
Marisat satellite system, working ability at computers, bIomedical
YOKOTA
our lour group inside paCifying
instrumentation, and radio amateur activities.
Big Mac attacks. I tested the hoI
(;O",pur~-9 fudge sundae ... just like the
Shire. At that time we look them out for di nner we toos a taxi 10
ones in Nashua, New Hamp
up to the 73 MagaZine repeater the downtown area, lirst going
shire ... not very good.
CLUS
site on some snowmobiles, to the department stores for
Thai evening, Mr. and Mrs.
courtesy 01 Chuck Martin of some shopping (and money
Inoue (the president of learn)
Tufts Electronics. Changing). The restaurants all
picked Sherry and me up lor din
Prices are stifl in Japan il you have very lifelike orester models
ner. Naturally, they knew a
don't know your way around. I of the foods in their windows,
wonderful restaurant and we
made the serious error of having complete with prices.We looked
had what was beyond a doubt
breakfast in the hotel (lntema over at least a hundred restau
the finest Japanese dinner 01
!ional) the first day in Osaka. It rants before settli ng on a
our lives. Tempura, Kobe steak,
was not only crappy, it was $8.25 Chinese restaurant. It was right
the works. We enjoyed having a
VOKOT N lor just one breakfast. That was across the street from a Baskin
chance to talk again, it having
a small glass of undrinkable tnt Robbins and next door to anoth
"'''0 Sf' 80328
been several years since they
ter orange juice, one over-easy er McDonald's. The food was
had visited me in New Hamp-
egg which was hard as a carp, fine and the prices moderate , . .
There are enough Americans with microcomputers to have notiust a and a thick slice of COld toast. particu larly for Japan,Wedecid·
computer club, but a very active one. They hold meetings weekly and Ugh. ad to brave the subway system
fIelded nearly a hundred for my talk. When we decided to venture to get back to the hotel ... and
8

,
Three bowls of dinner being cooked at one time on large Mongolian Like I said, in China you usually have about a dozen to a table, with
barbeque slave. You pick. out the meat you want, frozen and sliced a lazy Susan in the middle of the table. This is kept full of food, with
thin, add vegetables like you would at a salad bar, put on some flol many meals running to over a dozen different courses. Urp. These
sauces, and they cook the whole worKS in about one-half minute. people were par! of our tour group . . . Bob Chen at right, our tour
voo'utove it. leader.
had no problem. It is easy to use, seeing the electronics show the turned out to be a ham. the second day.
being well marked, using the next morning and then went to After the key ceremony, we Busy? Right after breakfast
French metro system 01 signs. see the mayor 01 Osaka. He went back to the hotel and had we went to the electronics
It's exciting to try something presented me with a key 10 the lunch at a nearby American-type show. You know, they are mak
new like that. city plus a gorgeous book of restaurantl had one more meet ing a lot of electronic equipment
We spent a little more l ime photos of Osaka. His assistant ing with a Japanese group want in Taiwan these days. The city,
ing an exclusive license for our like Seoul, had grown up ln.
Apple programs lor Japan. I credibly since my visit in 1959.
bought two cups of coffee and Mopeds and motorcycles by the
one small cake ... and the hotel tens of thousands .. . chaos.
bill was far more than for the They had some digital watches
lunch around the corner. Oh, that got me to thinking again
well, this can happen to you in about importing ... though the
New York, too. I guess they ship Otron watches I'd seen in Seoul
television sets to the U.S. at a seemed to have a couple more
loss and make up for it with their functions. I'd checked over the
hotel restaurants. held a few months earlier at the
Right after lunch, we got on a Premium Show in New York and
bus and headed for the airport opted for Otron at that time
. .. and Taipei. I was looking for ... and had never been dis
ward to seeing Tim Chen BV2A. appointed. It was very handy on
I'd contacted him from Seoul on this trip because it had two time
20m and gotten his phone num zones at the push 01 a button
ber. The tour schedule was too . .. alarm, s topwa tch ... all
busy the first day in -Otuna" to those nice functions. But would
see Tim, but we did get together hams want to spend S50 for a
Ever eat a Mongolian? Very good taste . . . when barbequed. The
spelling in Hong Kong is not a strong suit. Alas, even in China they have topless entertainment.
10