73 Amateur Radio Today – July 1985
Issue Contents:
Faces of Dayton ’85
…… KW1O WB8BTH 8
ICOM’s Extended Play
– Ten minutes with a Phillips screwdriver gives your IC-751 transmit capability from .1 to 30 MHz! …… KS4B 12
America’s Dream Array
– Twenty-seven dishes in a twenty-one-mile pattern make for some serious DXing at the National Radio Astronomy Observatory. Galactic DXCC anyone? …… AJ0N 18
WARC for the FT-101E
– Here’s how to join the fun on our new 12-meter band. And you’ll be ready for 18 MHz too! …… ZS2RH 22
The Dayton Downlink
– Optimizing your OSCAR downlink system can be frustrating. Use this easy method to measure your improvements and know just when to stop …… W9JD/8
The 30-meter-plus Receiver
– Explore the world of 10 MHz with a solid-state receiver you’ve built yourself! We’ve come a long way since oatmeal boxes and cats’ whiskers …… N4EY 30
The Incredible Inducto-gauge
– Measure coils with impunity! Better yet measure them with this weekend project: a do-it-yourself inductance meter …… Ketchledge 34
The Peerless Power Pack
– Simplicity is the key to this rugged 12-volt 5-amp supply. If you’re looking for quick energy here’s the answer …… KO2G 38
What You See Is Where You’re At
– Tired of guessing your frequency? Resolve your problem to 100 Hz with this add-on digital display …… WA8YKN 40
There and Back Again
– Add band-scanning to your TS-930s for under $20 …… KC7O 44
Home-brew the Blockbuster
– In a heroic effort WB2WIK has created the ultimate 6-meter amplifier. Its single 4-1000A delivers over 2 kW with only 20 Watts in. The power supply alone weighs 120 pounds. When this monster talks people listen! …… WB2WK 50
Broken Ox Blues
– The grid-dip oscillator is a stellar performer but missing coils can mean big headaches. Avoid frustration by winding your own …… W7RXV 56
73 Amateur Radio Today – July 1985
