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Radio Propagation


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

Father’s Day is Sunday, June 21. If you’re looking for the perfect gift, we invite you to shop at AmazonSmile and choose American Radio Relay League Inc. (ARRL) as your charity of choice. With every purchase you make at AmazonSmile, Amazon will make a contribution that will help to extend ARRL’s reach in public service, advocacy, education, technology, and membership. So far in 2020, ARRL has r...

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