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Radio Propagation


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D-Region Absorption
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Created by PA4RM

ARES volunteers in Hawaii took the opportunity of the 2019 Simulated Emergency Test (SET) on October 6 (UTC) to test Winlink radio messaging to the US mainland, using the KH6YY (KH6J) contest station on O’ahu. One of the premier contest stations in the middle of the Pacific Ocean, KH6YY offers a commanding propagation path over an expanse of saltwater.

“You have to start with digital modes somew...

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