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Radio Propagation


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D-Region Absorption
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Created by PA4RM

Although the last and shortest day of Dayton Hamvention is usually the least crowded, the ARRL Expo had early visitors making their rounds, particularly for books.

In the morning, Riley Hollingsworth, K4ZDH, presented a forum on ARRL’s new Volunteer Monitor Program. A well-known former FCC employee, Hollingsworth explained how the program came to be at request from the FCC and stressed the impor...

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