If there’s anything about amateur radio that has more witchcraft in it than the design and implementation of antennas, we don’t know what it would be. On the face of it, hanging out a chunk of wire ...

Recently I acquired a Yamaha T-80 tuner. This tuner was manufactured in the mid 1980’s, probably in 1985 from what I can tell. I proceeded to put the unit in my system and connected it to a standard ...

The need for what’s called antenna tuning—either by adjusting the antenna itself or via a matching circuit between power-amplifier output and the antenna—is almost as old as wireless itself. Even in ...