Software-defined radios are great tools for the amateur radio operator, allowing visualization of large swaths of spectrum and letting hams quickly home in on faint signals with the click of a mouse.

Awhile back I described the RF toolkit I carry around with my laptop. Since I wrote that article, I’ve had a chance to test some new devices. This month I’ll look at the latest Hauppauge ATSC USB ...

There was a time when experimenting with software defined radio (SDR) was exotic. But thanks to cheap USB-based hardware, this technology is now accessible to anyone. While it is fun to play with the ...