73 Amateur Radio Today – July 1991
Issue Contents:
Micro ATV Transmitter
– Can the Dick Tracy video wristwatch be far away? …… KC6CCC 9
Tropo Time Is Now!
– Talk thousands of miles on the VHF/uHF bands …… WB6NOA 14
Antennas by the Yard
– HT antennas that realty measure up! …… WA6TLK 22
The Megaloop
– Perfect for megalomaniacs …… W1GV 29
Lightning Protection
– Want some peace of mind? …… NU1A 32
The Flight of STS-37
– The first “all-ham” crew …… KC4YER 34
Software for the Ham Shack Part III
– Useful calculations you can program yourself! …… WA4BLC 42
The VOR-2 Video Operated Relay
– Control your ATV repeater with this versatile circuit …… WA3USG 26
SSTV with the Robot 1200C Scan Converter and the Martin Emmerson EPROM Version 4.0
– Add exciting new features to the Robot …… WA3USG 46
The ATV-3 Downconverter
– Tune in to ATV with this economical kit …… AH2AR/8 50
73 Amateur Radio Today – July 1991
