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Radio Propagation


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

Following the direction of the ARRL Board of Directors, ARRL has incorporated changes to the rules for all ARRL-sponsored contests and DXCC, prohibiting automated contacts. These changes also apply to the Worked All States (including Triple Play and 5-Band WAS), VHF/UHF Century Club, and Fred Fish, W5FF, Memorial awards. The changes are effective immediately.

A resolution at the July ARRL Board ...

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