![]() I have also worked hams using the letter “I” sent twice as in “I I” to indicate an error but I don’t know where that came from. In practical use, I think that the ? became the error indicator. ![]() In the military we learned to use a question mark to indicate you were going to repeat something whether it was due to a sending error or you just had to repeat something. This is shorter, and therefore more efficient than the other error indications that have been mentioned. I believe this is an abbreviated form of the eight dits. I put this out for comments on the CWOps mailing list and got the following responses:įor many years I’ve been using II (I-space-I) to indicate a sending error. That’s generally what I do.Īnother reason that I don’t like using the question mark is that I heard that the question mark was used to indicate that an operator was going to repeat some important information. For example, some guys will send a slow series of three or four dits. Not many hams use this prosign, but rather some variation of it. ![]() ITU-R M.1677-1 International Morse code (10/2009) specifies a prosign of (HH, or eight dits in a row) to denote that an operator has made an error. I have never liked this operating practice personally. Our instructor asks that if you make an error sending that you send a ? followed by the failed word and the rest of the message. A friend of mine who has just started the CWOps CW Academy Level 2 class emailed me the other day:
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