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Radio Propagation


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D-Region Absorption
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Created by PA4RM

The first day of Dayton Hamvention 2019 began with prompt crowds streaming in as soon as doors opened. ARRL Expo was one area that drew fair attention, with the addition of a booth for the new ARRL and Dayton Hamvention Mobile Event App. Available for free download, the app provides maps of the entire fairgrounds, booth layouts in every building, schedules of forums and presentations, and other...

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