73 Amateur Radio Today – November 1991
Issue Contents:
Voice ID on a Chip
– Throw your voice with this versatile Circuit …… WB8ELK 11
Portable Frequency Counters
– Versatile test equipment that you can really count on …… WB6NOA 15
Half-wave Gain Antenna
– For 450 MHz handie talkies …… AD5X 26
The Heli-hat Antenna
– An 18-inch wonder for 10-17 meters …… KB4ZGC 32
Showdown in Portland
– Discover the thrill of radiosporting …… K0OV 38
Microprocessor Repeater Controller Part II
– This month the audio board …… WB3ESS 44
A Simple 10-meter Sideband Amplifier
– Give your QRP rig a boost …… NZ5G 52
The Kenwood TS-850S
– A versatile HF transceiver with a digital difference …… N2GE 18
The Startek International Model 3500 Frequency Counter
– Speed accuracy and ease in a shirt-pocket unit …… WB9RRT 30
The Solarcon A-99 Antenna
– A very economical vertical for 10-17 meters! …… WA4BLC 36
73 Amateur Radio Today – November 1991
