[RTTY] Anyone using only 1 stop bit?

aflowers at frontiernet.net aflowers at frontiernet.net
Thu May 9 09:06:25 EDT 2013


 
Out of curiosity, is anyone transmitting only one stop bit in RTTY (i.e., "5-N-1").  EXTFSK from MMTTY appears to be fixed at 1.5 stop bits (I think), and many of the modems are transmitting either 1.5 or 2 stop bits. the AFSK software out there seems to default to 1.5 as well.  I haven't seen anyone sending one stop bit that I can recall, but I haven't done a systematic survey.  I imagine some of the Baudot-supporting UARTS might default to 5N1, but I'm not sure.
 
For the curious, 2Tone will show the stop-bit duration of the signal it is receiving in the bottom status bar (22ms = 1 bit at 45baud).  If you print your TX audio in 2Tone it will show you what stop bit duration that you are *really* sending.  
 
Thanks,
 
Andy K0SM/2


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