73 Amateur Radio Today – July 1983
Issue Contents:
You Can Build This Code Trainer
– More than a mere code-practice oscillator this CPU-controlled trainer features burned-in practice groups Flick a switch and you have a keyer …… K7ZOV 12
The True Story Behind Heard Island
– Fighting bad weather shady ship owners and bad press the HlDXA expedition forged its way to the DXer’s dream. But getting there was only half the battle …… VK9NL 20
More Stable Than a Rock
– An Honorable Mention winner in 73’s Home-brew II Contest this 10-mHz generator is a sure cure for the drifting frequency blues …… DJ3NW 32
Build the Billboard Keyboard Keyer
– Get perfectly-tuned CW without a buffer. Then join the crowd at 60+ wpm …… KD7S 44
Construct the Lead-foot Key
– If you like your CW In the fast lane you’ll love this key And it is guaranteed not to slip any speed …… W5JQE 48
The $2 Infinite-memory Keyer
-take a break Your cassette recorder will send any message for you …… W0XI 50
Apple Morse and You
– Simple software and cheap hardware make for a great CW keyboard recipe Just add one operator …… AF2M 54
Micro McElroy
– Is Pet BASIC fast enough for solid CW copy? You bet-and this program will work miracles with a sloppy fist …… VK3BHM 56
QRP Keyer for Misers
– Get machine-perfect code with this keyboard. All it costs is 30 mW and a few dollars…… VE7DHD 58
The Easy FIFO Keyboard
– First in first out means you type as fast as you want to. It will send at the speed you set…… N7BH 64
Down-under Depth Sounder
– Get your feet wet with this Australian construction project We promise that you won’t get In over your head …… Harleck Dawson 82
The ROM-less RAM-less CQ Sender
– Automatic CW can be yours for the price of a few diodes. And you can reprogram without spending a dime …… VU2VIZ 90
Yasme and the Call of Abu Ail
– It was just a speck in the Red Sea but it created pileups as big as a mountain …… W6KC W6QL 94
73 Amateur Radio Today – July 1983
