73 Amateur Radio Today – June 1983
Issue Contents:
D’Arsonval Dossier
– How these meters work and how to make them work for you is no mystery. Discover the inner machinations of the D’Arsonval movement for yourself …… W1OLP 20
Save Money on Used Meters
– Does it work or doesn’t it? This simple tester spots real hamfest bargains …… W3QOM 19
Live From Across America-it’s Field Day!
– The Corpus Christi Amateur Radio Club had helicopter TV coverage of its activities. Club member WB4EMI unveils the secret behind their success …… WB4EMI 22
Construct the Cyclops Dip Meter
– W4ATE’s unique single-coil design captured an Honorable Mention in 73’s Home-brew II Contest. Now you can build this award-winning circuit for yourself …… W4ATE 26
Be the First on Your Block with a 2-meter Dipole
– A few safety pins some wire and a little rod stock will make a portable antenna perfect for the traveling ham …… W9HD 30
Two Meters for the Price of One
– The oft-ignored shunt principle will turn an everyday junk-box meter into a surprising supermeter. The key is a piece of solder …… KB2JN 34
Strangle QRM with Your TS-830s
– Simple filter modifications will help your Kenwood choke out Interference KA2R gives you the lowdown on how to do it …… KA2R 36
Smart Meters: The New Movement
– Turn your passive meters into active error-correction systems. W4RNL’s innovative circuits make it a snap …… W4RNL 42
A QSL Assembly Line of Your Very Own
– The problem: a stack of QSL cards as high as Mt. Everest. The solution: a program that will make your TRS-80 climb the mountain …… WB8JEY 48
Get Accurate with the Digital-grid Power Meter
– Your final input power is instantly accessible with this easy add-on …… N1II 50
Diary of a Partially-sighted Ham
– Eyesight is not a black and white issue. Here are some tips for hams in the grey area …… WA6CNN 54
Hot-spot Metering-automatically!
– Here are money-saving designs that will let one meter do the work of several. Keep in control and keep your change too …… W4RNL 56
Build the Weather-grabber
– Don’t know why there’s no sun up in the sky? With this simple converter you can listen to National Weather Service forecasts on your 2-meter rig and find out …… N1II 84
Kill Power-line Interference
– You don’t have to be a big-game hunter to find the source of that annoying noise. All you need 1s your rig and your good hamming habits …… K3UK 92
73 Amateur Radio Today – June 1983
