After getting his hands on this relic [Gregory Charvat] manage to hack it, converting the receiver into a transceiver. It may be old, but the R-390A is nothing to scoff at. It’s abilities ...
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 ...
Shortwave radios were the primary means for people ... s surrender by Emperor Hirohito was transmitted from here to military personnel on overseas battlefronts. When it was completed in 1940 ...