Improving a Ground Tuning Unit – using binary coded inductance and capacitance

There are 10 types of people in this world; those who understand binary notation and those who don't. Some years ago I experimented with using a Ground Tuning Unit (GTU a.k.a. Artificial Ground) to replace radials/counterpoises on my field expedient vertical antennas. A GTU is simply a series L-C tuned circuit with a current sensor … Continue reading Improving a Ground Tuning Unit – using binary coded inductance and capacitance →

“The Other Half”

I have a real problem with using vertical antennas when operating field portable. And I mean quarter-wave vertical antennas. You see they need "the other half"; a ground plane, radials, or counterpoise and without "the other half" they just aren't going to work. So here's the rub (as Shakespeare would undoubtedly have commented had he … Continue reading “The Other Half” →