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Radio Propagation


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D-Region Absorption
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Created by PA4RM

The Maritime Radio Historical Society (MRHS) “Night of Nights” event on July 12 (July 13 UTC) will mark the 20th anniversary of the day when the commercial stations that once populated the HF bands ended CW service, leading to the founding of the MRHS.

While shore stations KPH, KFS, and K6KPH are on the air each Saturday, every available transmitter at the Bolinas, California, site is brought on...

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