One truly cool site is the KiwiSDR map site. As the name suggests, this link takes you to a world map of clickable KiwiSDR ...

One of amateur radio’s many interests comes in portable operation, taking your radio to an out of the way place, usually a summit, and working the world using only what can be carried in. Often this ...

We think of radio navigation and direction finding as something fairly modern. However, it might surprise you that direction finding is nearly as old as radio itself. In 1888, Heinrich Hertz noted ...