The Halfloop encryption algorithm used by the US military and NATO to protect shortwave radios contains serious IT security ...

With the audio signal fed to HDSDR, [Aniss] was able to pick up a shortwave radio broadcaster. While this is by no means a high-performance receiver, building an SDR on a breadboard is still a ...

A QSL Card from Radio Moscow probably got many 14-year-olds on government watch lists. (Public domain) Between World War II and Y2K, shortwave listening was quite an education. With a simple ...

Radio transmission in the 1.7-30 MHz frequency range worldwide. Like AM radio, shortwave signals reflect back from the ionosphere and follow the curvature of the earth. As a result, shortwave (SW ...

This is KDDI Corp.’s Yamata Transmitting Station, the nation’s only facility broadcasting shortwave radio programs to overseas listeners. The station started broadcasts on Jan. 1, 1941.

Join hosts Emily Kwong and Regina Barber for science on a different wavelength. If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed.

Shortwave radio is often used by the military, emergency services and industries that require extremely robust long-distance communication without external infrastructure. But the half-loop ...

Since World War One, numbers stations have been transmitting coded messages to spies around the world using shortwave radio. And they're still transmitting right now. We're going to listen to a few in ...

A festive auroral display may be put on for a lucky few when coronal mass ejections hit Earth on Christmas Eve and Christmas Day.

A shortwave radio service that would keep members of the Canadian Armed Forces in touch with news and entertainment from home during the Second World War became a reality with the signing of an ...

Powerful eruptions from the sun are likely to interact with Earth's atmosphere on New Year's Eve, causing auroras in some ...