73 Amateur Radio Today – March 1992 Issue
Issue Contents:
Build a GaAsFET Preamp Sequencer
– Mast-mount your preamp for maximum performance …… WZ1V 8
Simple Pulsed Crystal Signal Source
– Find the right frequency …… KA1MJP 14
An ATV Downconverter with a Difference
– Keep FM voice repeaters out of your picture …… W9NTP 22
Using RS-12
– Work the world with this unique satellite …… G3IOR 32
40/80 Meter Wave Ryder
– A QRP tube transmitter powered by 12 volts DC …… KI5AZ 40
A Remote Field Strength Meter
– An accurate system for measuring radiated power …… W2IMB 44
The Lappack
– Extended portable power for your laptop computer …… W5VBO 52
DigiMax D1200 Frequency Counter
– Great performance at a budget price …… KA1MDA 18
The JPS NF-60 DSP Notch Filter
– Get rid of multiple carriers with the push of a button …… WA4BLC 36
73 Amateur Radio Today – March 1992 Issue
