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Radio Propagation


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D-Region Absorption
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Created by PA4RM

Despite mid-summer conditions, at least seven US listeners, most of them radio amateurs, were able to copy the 17.2-kHz signal from the SAQ Alexanderson Alternator at the World Heritage Grimeton Radio Station in Sweden. The July 5 transmission from the vintage electro-mechanical transmitter commemorated the annual Alexanderson Day. All told, more than 600 reception reports [report updated on 20...

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