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arrl.org
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
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Ham RadioWebsite
Explore websites about Ham Radio, their features, categories, alternatives and technical profiles.
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hamstudy.org
Free ham radio flash cards, practice tests, and question pools as well as introduction to ham radio and explanations for questions.