[CW] List of prosigns

[D.J.J. Ring, Jr.]

AA as a procedure sign (prosign) sent as one signal came from American
Morse where it meant the character "comma" or ",".

The interesting one for me was BT which was from Western Union for "Begin
Text" and what I always thought was "HERE" which fits the use but it's
actually "HAND READY." That is, have your hand ready to write (or type.)

Prosign AR is cross or plus sign (+). And is used for "End of Message" or
infrequently for addition sign, with minus sign being hyphen (-),
multiplication (X) and division (/) slant sign.

I think HR and BT were explained in Allied Communications Procedures (ACP)
book, maybe ACP 113 Radiotelegraph Procedures.

73

David N1EA
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/cw/attachments/20190724/95817eb4/attachment.html>