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The distress signal CQD originated from the signal CQ, expressing "seeking you," or "all stations." The signal CQ was commonly used among wireless operators -- and land-based telegraphers before ...
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Here’s What SOS Really Means and Where the Term Came FromBest known for its appearances in desert-island cartoons, maritime movies and earworms by ABBA and Rihanna, the word SOS has been used as a code for emergency distress signals since 1905.
Most simply, SOS is the standard Morse code distress signal, which reads like this: ". . . - - - . . ." As such, the three ...
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