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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

Members of the San Antonio Radio Club (SARC) are celebrating the centennial of the club’s founding. Initially known as the Bexar County Radio Association, SARC became an ARRL affiliated club in 1920. SARC is doing several different things to commemorate its Centennial.

SARC kicked off its centennial at its annual ham convention in greater San Antonio, this year called “Centennial Radio Fiesta.” ...

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