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"HFguy" wrote in message news:hM67g.1131$Zf3.73@trndny01... Grimly Curmudgeon wrote: I fully agree that in some conditions a Morse tone will get through where voice is an unintelligble mush, if heard at all, but apart from prisoners tapping out messages on pipes its days as an *essential* comms tool are pretty much over. How do you send Morse code by tapping on a pipe when all you can send is a 'dit'? By changing the spacing of the taps. taptaptap tap tap tap taptaptap |
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