73 Amateur Radio Today – February 1994
Issue Contents:
VHF Meteor Scatter Propagation
– Bounce your signal beyond the horizon …… WB2WIK/6 10
Using the World’s Most Accurate Frequency Standard Part 2
– Building a digital phase comparator …… K9EUI 18
Computer Control for Your Direct Digital Synthesis (DDS) VFO
– Free yourself of the hassles of generating an accurate and stable sinusoidal signal-and more! …… VE1ABC 26
ASCII-to-morse-code Interface
– Let your keyboard do the work …… KD1JV 36
Standardize Your Microphone Connectors
– A one-plug-fits-all solution you can easily build …… WB9YBM 44
Folding Three-element 2 Meter Quad
– Finds fox folds fits in trunk …… WX8G 46
The Kenwood TH-28A
– 2 meter hand-held transceiver …… WB2WIK/6 52
The XPERTEK DVMS/1+
– Digital voice mail system for repeaters …… WA4TEM 56
73 Amateur Radio Today – February 1994