Numbers stations are mysterious, unsettling, and one of the strangest things you'll ever hear. They're shortwave radio stations that send coded messages to undercover spies all over the world—an odd ...

The author is chairman of Digital Radio Mondiale. Analog shortwave will celebrate about 100 years of existence in 2028 when many hope 5G will have been properly defined, tested and applied, though ...

Surprise! Shortwave radio as a broadcast medium is holding its own, despite the intrusion of the internet, transmission cutbacks by major broadcasters such as the BBC World Service and Voice of ...

Somewhere on a lonely mountaintop on a starry night, or maybe in an apartment on a bustling city block, someone is channeling the whole world onto a mobile device. It's not a phone; it's a shortwave ...

Shortwave radio has a charm all its own: part history, part mystery, and a whole lot of tech nostalgia. The Hallicrafters S-53A is a prime example of mid-century engineering, but when you get your ...

Russia's eerie "Doomsday Radio" whirred back into life for the first time in months on Monday - sparking wild speculation as a result. The UVB-76 shortwave station, which typically transmits nothing ...

This is one of the coolest things I’ve learned recently: Foreign intelligence agencies still use good ol’ radio to share top secrets. Even with all the powerful tech at their fingertips, radio use in ...

MIAMI (CBSMiami) - A massive shortwave radio antenna sits in a cow pasture north of Lake Okeechobee in Central Florida. "We have 14, 100,000-watt transmitters and 23 antennas beaming to all parts of ...

[Mikrowave1] had a Unelco shortwave receiver as a kid. This was a typical simple radio for the 1960s using germanium and silicon transistors. It also had plug-in coils you had to insert into sockets ...

Add Yahoo as a preferred source to see more of our stories on Google. Numbers stations are a mysterious phenomenon of shortwave radio dating back to the Cold War. The radio signals are secret messages ...