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Radio Propagation


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D-Region Absorption
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Created by PA4RM

You can make contacts through amateur radio satellites, and even with the International Space Station, using equipment you probably own right now! All it takes is the right information, which you’ll find in ARRL’s new book Amateur Radio Satellites for Beginners.

Dozens of spacecraft are in orbit just waiting for your signals, and more are being launched every year. This book is your guide to a w...

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