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.

SDRplay, the Wakefield software defined radio specialist, has upgraded its RSP1 entry level SDR receiver with an expanded and improved version called the RSP1A. “Since launching the RSP1, we have ...

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 ...