Last week we asked the readers what their geeky hobbies were, many responded including amateur radio enthusiasts. If you’re looking for something interesting and radio-related check out the mysterious shortwave number stations.
Photo by Nate Steiner.
MakeUseOf shares an introductory guide to the mysterious number stations–shortwave radio stations operated from around the world that simply broadcast sequences of numbers. For years they were rumored to be involved in international espionage practices until such communication featured prominently in a criminal trial.
A large community of radio enthusiasts has sprung up around the numbers station including The Conet Project, Numbers & Oddities, and SpyNumbers. Hit up the link below for more information about the stations and additional resources.