I started this by just hunting around for creepy shortwave signals using public WebSDR, KiwiSDR, and OpenWebRX receivers. That meant I didn’t need my own expensive transceiver, a license, or an ...

In this handout photo provided by NASA, an MDI image shows giant sunspots 486 and 488. Credit: NASA via Getty Images Beyond their love of radio, amateur radio operators and shortwave radio ...

If you are a regular shortwave radio listener, the synchronized beats might be etched in your mind. This is the shortwave time signal from CHU, operated by the National Research Council of Canada. As ...