Surprise! Shortwave radio as a broadcast medium is holding its own, despite the intrusion of the internet, transmission cutbacks by major broadcasters such as the BBC World Service and Voice of ...
Does it make sense to resume shortwave (SW) radio broadcasts to Russia and Ukraine, decades after international SW broadcasters cut back their services and people turned to the internet for ...
Early radio receivers worked on a principle called Tuned Radio frequency (TRF), patented in 1916. They weren’t very easy to use, requiring each stage to be tuned to the same frequency (until ganged ...
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