Idea: Multiplayer Split-Screen Console Gaming

In the days before online multiplayer video games, people used to get together around a single television and play split-screen multiplayer games. If one wanted to play these old multiplayer...

Portable Hitch-mounted Antenna Mast

As a weekend project a couple weeks ago, I built a 20 foot portable antenna mast that will mount on my pickup’s hitch receiver. Today I decided to do a...

Secure Voice Using AFSK Modulation

One of the things that finally prompted me to get an amateur radio license was some experiments I was doing with secure voice. There are many commercial systems that exist...