Airpsy YouLoop passive antenna review on VLF & LF with an HF+ Discovery and SDR# during storms!

In response to a user comment about the Airspy YouLoop performance on LF & VLF, I performed a real world test on a stormy night in Europe. Plenty of submarine communications were taking place! Previous Airspy YouLoop review can be found at Please note that the YouLoop requires an HDR receiver such as the Airspy HF Discovery Software Defined Radio used in this video. Stations were ID’d using several websites, including https://