Three or four years ago I got into SDR receivers. I don't own a Perseus, but I do own and use an Airspy HF+ Discovery, an SDRPlay RSP1a,...

The Outstanding Passive Loop Antenna by Airspy Airspy, the maker of the HF+ Discovery SDR receiver, also makes the YouLoop, the passive, so-...

North American Broadcast Mapping Tool & Database We are proud to announce the launch of the latest edition RDMW-2024 Medium Wave Pattern...

Many of you may be familiar with the HF+ Discovery, Airspy's excellent, highly sensitive, high dynamic range, software-defined radio. I ...

The Portable Greyline Map has been updated to version 1.9.1 2024. Look for the download at the upper right of this page. Knowing where there...