Coaxial Stubs or how to reduce interference from other nearby transmitters.
A quick search of 1/4 wave stubs for passing or blocking a frequency will return tons of videos and websites. I’m the station trustee for the Sangamon Valley Radio Club…
Antennas
1/2 Wave Dipole Lengths
A 1/2 wavelength dipole is one of the simplest antennas you can build and install. Some wire (it can even be scrap/salvage) a few insulators, rope, and a feedline. These…
C-Pole Antenna
Just an attempt at preserving the calculator for C-Pole antennas. The C-Pole is a relatively easy to construct monoband vertical antenna. It can be supported on a pole or hung…
My HF Verticals
10m 9:1 End fed Vertical I was looking for an easy to setup antenna when I ran across the Rybakov 806 Vertical. See the article, revisiting the Rybakov 806, A…