You’ve learned how to use your SDR, you know things are out there to listen too, how about listening to things that are more interesting than to men talking to each other about the weather. Number stations have been around for a long time, learn what they *MIGHT* be, what they probably were used for and where they are at in the spectrum of wireless communication. Possibly listen to one or two and have a new adventure in the airwaves.

Speaker: Mike Guthrie