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Radio Propagation


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D-Region Absorption
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Created by PA4RM

ARRL Headquarters is closed Thursday and Friday, November 28 and 29, for the Thanksgiving holiday. The ARRL Letter and ARRL Audio News will not be produced this week. The next editions will be on December 5 and 6, respectively.

There will be no W1AW bulletins or code practice transmissions on Thursday and Friday.

We wish everyone a safe and enjoyable Thanksgiving. ARRL

Headquarters will reopen on ...

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