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   ENGLISH_TUTOR      English Tutoring for Students of the Eng      4,347 messages   

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   Message 3,614 of 4,347   
   Alexander Koryagin to Anton Shepelev   
   73! Morse telegraph ;)   
   05 Mar 21 08:07:16   
   
   MSGID: 2:221/6.0 6041ca8e   
   REPLY: 2:221/6.0 6040ef2e   
   PID: SmapiNNTPd/Linux/IPv6 1.3 20210227   
   CHRS: LATIN-1 2   
   TZUTC: 0200   
   TID: hpt/lnx 1.9.0-cur 2021-02-17   
   Hi, Anton Shepelev! -> Alexander Koryagin   
   I read your message from 04.03.2021 17:31   
      
    AK>> When you write a Morse text you need three sym-bols -- the third   
    AK>> symbol is needed to divide letters from each other. It is a   
    AK>> ternary code. In binary code it is not necessary because every   
    AK>> byte has 8 bits.   
      
    AS> I did not realise it. I thought that decyphering did not requier   
    AS> character separators.   
      
   Without a special signal all the Morse dots/dashes will merge into a   
   continuous stream. So, a pause in Morse code is also a signal. We have short   
   beep, long beep, and a long pause.   
      
   Just for fun, we can invent a coding system using pause signals. For instance,   
      
   A short beep - is a separator   
      
   Between separators can be:   
   one second pause implies 1   
   two seconds pause implies 2   
   three seconds pause implies 3   
   ....   
   nine seconds pause implies 9   
   ten seconds pause implies 0   
      
   And we have very a silent variant of "Morse" code for digits transfer. ;-)   
      
    AS> See also:   
    AS> Is Morse Code binary, ternary or quinary?   
      
    AS> https://cs.stackexchange.com/questions/39920/is-morse-code-   
   inary-ternary-or-quinary   
      
   IMHO it is writen too much there on a simple subject.   
      
      
   Bye, Anton!   
   Alexander Koryagin   
   english_tutor 2021   
      
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