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Author Topic: When did double dash = get officially introduced?  (Read 1494 times)
AA4PB
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« Reply #15 on: March 22, 2010, 10:56:24 AM »

There's a reference to the double-dash (as a separator between parts of a message) in the Mlitary Signal Corps Manual dated 1918 so it was in use at least that far back.
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W9KEY
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« Reply #16 on: April 04, 2010, 06:04:13 AM »

a double hyphen *is* a dash in old typewriter /writing / grammar protocol... is it not?   Since the ham literature going back nearly 100 years calls it "Break (double dash)"  it seems to me it was a paragraph separator written down as a double dash (or dash) when copying telegraph transmissions.  

I wonder it grew out of using BK so much that it became short hand?  in other words: dah dih dih dih   dah dih dah  (BK) got shortkeyed into dah dih dih dih dah (its present existence which is sometimes written down as BT)
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N2EY
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« Reply #17 on: April 05, 2010, 03:07:42 PM »

I wonder it grew out of using BK so much that it became short hand?

I don't think so!

"BK" means "break", and in typical QSK operation means "it's your turn/go ahead". (QSK has been around a long time).

73 de Jim, N2EY
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