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 ...

Sure, you can now listen to the major shortwave stations on your computer via the Internet, but what about when you are traveling or camping or just want to get away from the computer? You can turn to ...

The author is chairman of the High Frequency Coordination Conference, which is a non-governmental, non-profit association that manages and coordinates global databases of international shortwave ...

Saying it has received strong public support, the grassroots crowdfunding campaign Shortwaves for Freedom this week announced additional shortwave radio broadcasts to Russia, Belarus, Ukraine and ...

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 ...

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 ...

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 ...

[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 ...