Cryptic messages have been broadcast on what has been dubbed "doomsday radio", a shortwave station in Russia that has been active since the Cold War. The mysterious radio station UVB-76, thought to be ...

An amateur radio operator believes mysterious radio broadcasts could be instructions being sent to CIA agents in Iran. When 47-year-old Roberto, from Milan, switched on his shortwave radio on Tuesday, ...

If you know much about radios and espionage, you’ve probably encountered number stations. These are mysterious stations that read out groups of numbers or otherwise encoded messages ...