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Radio Propagation


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D-Region Absorption
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Created by PA4RM

Les W. Barclay, G3HTF, of Chelmsford, England, a radio wave propagation expert and academic who was well known in International Telecommunication Union (ITU) circles, died on July 31. He was 85.

“Les was Chairman of ITU-R Working Party 3L from 2012 until 2016, and provided key input into the technical discussions for World Radiocommunication Conference 2015 that resulted in the international 60-...

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