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Edition - ARRL
Apr 30, 2013 ... Many problems of interest to amateur radio operators in- volve considerably more computation than is practical on a non-programable calculator. Learn More
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Contest Update Issue - ARRL
Apr 13, 2011 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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