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   comp.misc      General topics about computers not cover      21,759 messages   

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   Message 20,266 of 21,759   
   Scott Dorsey to cgibbs@kltpzyxm.invalid   
   Re: the early teletype   
   18 Nov 24 09:01:47   
   
   XPost: alt.folklore.computers   
   From: kludge@panix.com   
      
   Charlie Gibbs   wrote:   
   >On 2024-11-14, Lawrence D'Oliveiro  wrote:   
   >   
   >> You could hear such signals quite frequently on short-wave radio -- a   
   >> rapid series of tones alternating between two pitches -- much faster than   
   >> Morse code.   
   >   
   >Original Teletype machines ran at 45.45 baud.  The later standard   
   >was ASCII at 110 baud (150 baud for a model 37 Teletype).   
      
   RTTY can still be heard on the amateur radio bands at various baud   
   rates and shifts based upon the current band conditions.  It is quite   
   possible to copy 110 baud RTTY by ear and an old friend of mine could   
   do so.  It's dying out though because the modern digital modes have   
   much better performance under marginal conditions.   
   --scott   
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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