Shortwave radio signals (3-30MHz) are highly susceptible to interference from power adapters, fluorescent or LED light ...

[David Prutchi] has just shared his incredible work on making his own shortwave ultraviolet viewers for imaging entirely outside of the normal visible spectrum – in other words, seeing the truly ...

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 ...

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 ...

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.

In the last few years, the interest in listening to Deutsche Welle radio broadcasts via shortwave has decreased rapidly in North America. As a result Deutsche Welle decided to cease shortwave ...