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Originally Posted by MuscleBob.Buffpants
@ Cdr Gibbs,
Sorry but SOS has no meaning. It was decided at a conference in Berlin (1906) to replace the distress signal at the time (CQD - CQ is a normal morse/radio preface, D was for distress and quite difficult to transmit i.e. - · - · / - - · - / - · · ) with a new code that would not be mistaken for another call while being easy to transmit on a morse key. ...---... was chosen (ref Wikipedia).
Bob
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Exactly. It was chosen for the operators, and to prevent ambiguity.
I was never a radioman, but it was a field that came up from time to time.