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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

In 2017, Category 4 Hurricane Harvey left the region of Texas where Assistant Scoutmaster Scott deMasi, KC5NKW, lived under water. With roads flooded, bridges washed away, and cellular service and power out, deMasi said it soon became clear that his Scout troop’s emergency preparedness plan wasn’t designed for a storm of this magnitude. It was frustrating, deMasi says, to discover he couldn’t r...

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