Where you hear about "numbers stations" here is what they are talking about. This video is of a hybrid station with the voice sending the message preamble and the data (sounds like a modem) sending the message.
The Perseus is a wonderful SDR receiver which captures this stuff real good.
Ham Radio/SW DXing. Get involved! Let's take back America's Radio Waves! What's going on in ham radio in America...
Moderator: Super Moderators
2 posts • Page 1 of 1