WSPR Explained: How to Get Started With One-Way Ham Radio

This site may earn affiliate commissions from the links on this page. Terms of use. Last Tuesday at 1744 UTC (1:44 PM EDT) UR3RM, a ham radio station in Ukraine blindly sent out a message on 7040.138 kHz.  It was automated. It was text. Maybe someone would hear it. Maybe not. The “maybe not” part […]