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Post Info TOPIC: CQD
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CQD
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CQD, transmitted in Morse code as - · - · - - · - - · · is one of the first distress signals adopted for radio use. It was announced on January 7, 1904, by "Circular 57" of the Marconi International Marine Communication Company, and became effective, beginning February 1, 1904 for Marconi installations.
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