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1. [RTTY] Why 45.45 baud? (score: 1): Author: Dennis <egan.dennis88@gmail.com>; Date: Tue, 15 Apr 2014 14:49:32 -0400; Where did the 45.45 baud rate come from? Some antiquated mechanical usage, or? Dennis W1UE _______________________________________________ RTTY mailing list RTTY@contesting.com http://lists.contestin; /archives//html/RTTY/2014-04/msg00107.html (6,204 bytes)
2. Re: [RTTY] Why 45.45 baud? (score: 1): Author: Kai <k.siwiak@ieee.org>; Date: Tue, 15 Apr 2014 15:14:33 -0400; Dennis, Great question! See the second installment of RTTY articles by Irvin Hoff, K8DKC, "Operating the Teleprinter", QST, Feb 1965, pp 29-35. He wrote 13 articles in QST in 1965-66 on all aspects o; /archives//html/RTTY/2014-04/msg00109.html (7,655 bytes)
3. Re: [RTTY] Why 45.45 baud? (score: 1): Author: Peter Laws <plaws@plaws.net>; Date: Tue, 15 Apr 2014 15:51:49 -0500; Can't say as I'll read them all but I pulled this one from the archive and it's pretty interesting. About to read about USOS ... -- Peter Laws | N5UWY | plaws plaws net | Travel by Train! ___________; /archives//html/RTTY/2014-04/msg00112.html (7,681 bytes)
4. Re: [RTTY] Why 45.45 baud? (score: 1): Author: Kai <k.siwiak@ieee.org>; Date: Tue, 15 Apr 2014 18:03:27 -0400; Peter, Hoff, K8DKC, also includes snippets about FCC regs regarding RTTY. You can follow why we are where we are with the FCC. I learned RTTY in the last 5 years from that series, this reflector, and; /archives//html/RTTY/2014-04/msg00115.html (8,455 bytes)
5. Re: [RTTY] Why 45.45 baud? (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Wed, 16 Apr 2014 05:00:18 -0500; I always thought that the reason 45.45 was used in North America was because that is what the commercial land line used. The machines when sold as surplus were then used for amateur radio RTTY. QED 4; /archives//html/RTTY/2014-04/msg00117.html (10,138 bytes)
6. Re: [RTTY] Why 45.45 baud? (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Wed, 16 Apr 2014 10:11:35 -0400; I should point out that many amateurs today actually use send at 45 baud due to the serial ports used for radio FSK keying being in many cases unable to send at 45.45 baud (22mS bit length). It is no; /archives//html/RTTY/2014-04/msg00119.html (12,695 bytes)

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