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www.arrl.org
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| | | | The Amateur Radio Relay League publishes daily updates on the world of ham radio, including feature articles, columns, and news about emergency communications, technology and contesting. | |
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briancallahan.net
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techcollectivesea.com
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| | | | Since its invention in the latter part of the 19th century, the radio has taken many different forms, each of which serves a distinct purpose. You should be aware of the following facts. Radios are frequently categorized according to their intended use and function. AM, FM, shortwave, longwave, satellite, Ham, DAB, walkie-talkies, and HD radio [...] | |
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vom-krieg.blogspot.com
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