Ham Radio . Magnum Experimentum
Antennas, experiments, engineering and other articles of interest to radio folks.
So what do the Dallas Cowboys, Digital Television over the air broadcasts, my wife and the Hex Beam have in common…
You’re probably thinking…
“Man… John has lost it. He’s blogged one post too far… On Halloween afternoon too…”
Hang with me for a moment.
The MFJ Analyzer products make easy work of tuning a coaxial quarter wave stub.
Two NMO through-hole antenna mount parts, the Laird MBO and MABO, were prototyped to help down select the choice of 3/8″ or 3/4″ hole. The opinions of engineers, machinists and others were obtained.
Described is a simple limit switch system for control of a tower’s DC powered elevation system.