Hi, I think you are only going to be able to get opinion here for what it is worth. I've been a ham for over 30 years with CW being my main and favorite operating mode. I would say that, easily, 99.99% of hams wouldn't know an "=" sign if they heard one or of course use it. Every ham operator will know and use and so if I were making a decoder, that is what I would display. As for punctuation, a period, comma, and question mark are all I ever hear used, I don't even know the others. As for the pro signs, I looked at the list on the link you sent and I've heard and used all of them except for . I'm unfamiliar with that one. I think Wikipedia is showing you accurate information but I'm telling you real world. Good luck on your project. FJ From: "Peter P." Reply-To: "Microcontroller discussion list - Public." To: piclist@mit.edu Subject: [OT] Morse signs (punctuation and prosigns) Date: Tue, 24 Apr 2007 10:16:51 +0000 (UTC) Hi all, I am confused. There are about as many interpretations for prosigns and punctuation as there are resources describing this subject. What is THE standard ? E.g. even Wikipedia (which is not supposed to be authoritative acc. to academia) has clashes between prosigns and punctuation. E.g.: See '=' and '' on: http://en.wikipedia.org/wiki/Morse_code http://en.wikipedia.org/wiki/Prosigns_for_Morse_Code So, what is the authoritative version ? (I am working on the decoder and these inconsistencies drive me crazy). tia, Peter P. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist _________________________________________________________________ Exercise your brain! Try Flexicon. http://games.msn.com/en/flexicon/default.htm?icid=flexicon_hmemailtaglineapril07 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist