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Radio Propagation


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

For the first time in its 68-year history, Dayton Hamvention® will not take place, due to concerns about the coronavirus outbreak. ARRL understands that many members will miss going to Hamvention, which is always an occasion to catch up with friends, explore new products, and connect with ARRL via our Expo in the exhibit area. While we can’t be together in Dayton in 2020, ARRL has put together ...

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