Using cheap RTL-SDR dongles and Python, [Eric Urban] was able to compare the performance of two shortwave/HF antennas ... a popular digital ham radio mode, which allowed [Eric] to automate ...

The whole world can be reached with a unique short-wave antenna from Austria. It could be blown up as early as Thursday.

The steel towers are arranged in such a way that 18 transmission antennas cover 360 degrees ... shorter travel distances than shortwaves. Shortwave radio broadcasting was particularly valued ...

This new shortwave radio antenna, recently developed, is now installed at Glendale Airport to concentrate radio waves for the aid of airplane pilots and ground attendants with whom they ...

With the push to having most of a radio receiver as part of a PC ... [OM0ET] suggests adding selectivity in the antenna or adding an extra board to use as a bandpass filter.

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 ...

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 ...