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Bob Bruninga, WB4APR, Takes APRS Underground

A

ARRL

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Nov 15, 2008
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Bob Bruninga, WB4APR, led a group of radio amateurs earlier this month to Mammoth Cave -- the world’s longest known cave system -- at Mammoth Cave National Park in Kentucky to test how the Automatic Packet Reporting System (APRS) can be used as a means to extend radio communications underground. “When used underground, VHF and UHF radios can only work within a few hundred feet of each other and...





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  • @ BJ radionut:

    June VHF

    The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
    www.arrl.org www.arrl.org
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    +1
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