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Radio Propagation


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

ARRL Exam Review for Ham Radio™ has been updated in advance of the release of the ninth edition of The ARRL General Class License Manual for Ham Radio. ARRL Exam Review is a free online resource for use with current editions of ARRL License Manuals. The service can be accessed via a web browser, and uses the official examination question pools to construct chapter-by-chapter reviews. Upon compl...

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