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Radio Propagation


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D-Region Absorption
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Created by PA4RM

AMSAT has announced its 50th Anniversary Awards Program, to help celebrate 50 years of keeping Amateur Radio in space. Satellite and HF contacts can help participants to earn one of these awards:

  • 50th Anniversary AMSAT OSCAR Satellite Communications Achievement Award
  • 50th Anniversary AMSAT Satellite Friends of 50 Award
  • AMSAT on HF 50th Anniversary Award

The 50th anniversary AMSAT OSCAR Satellite ...

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