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Radio Propagation


Solar X-rays:
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Geomagnetic field:
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D-Region Absorption
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Created by PA4RM

In a message to Amateur Radio on the International Space Station (ARISS) team members, sponsors, and educational institutions, ARISS International President Frank Bauer, KA3HDO, outlined how ARISS is transforming its activities as a result of the COVID-19 pandemic.

“Our primary objective in these challenging times is to protect all students, faculty, astronauts, and our volunteer team in all we...

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