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Radio Propagation


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D-Region Absorption
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Created by PA4RM

An article by two well-known radio amateurs, “Tuning Electrically Short Antennas for Field Operation,” appeared in Microwave Journal. Authored by QEX Editor Kai Siwiak, KE4PT, and award-winning researcher Ulrich Rohde, N1UL, the article points out that both Amateur Radio and military applications exist for 20-W battery-powered radios equipped with whip antennas. “In general, the whip antenna wh...

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