[GreenKeys] Printing punched tape on my model 15 is FIXED!!!
Nico de Jong
nico at farumdata.dk
Tue Apr 26 06:17:31 EDT 2011
> Derek Cohn/WB0TUA wrote:
>> 2) Don House pointed out that the "fox box" generates a CR-LF-LTRS at
>> the end of each line and that my TD must not be sending the LTRS
>> correctly and the LTRS is required to seat the carriage properly.
>
> I recall that Telex operators were always trained to end lines with CR
> LF LTRS LTRS LTRS. ie Three letter shifts.
>
That is correct, more or less. Most of us (Telegraph Office, Dutch PTT, The
Hague), sent CR, LF, CR, LTRS, LTRS, but all for the same reason : to give
the printbasket (or whatever syxtem was used) time to return to its home
position.
This gives me the opportunity to mention ZCZC NNNN, which some of you have
trouble using correctly.
ZCZC was used in the start of the tape/telegram-, and NNNN at the end. This
is because this makes it very easy to see where a telegram stops, and the
next starts, as NNNN gives 4x2 holes in the center of the tape. Z gives the
two outmost holes, and C the 3 holes in the center. This gives a very
distrinctive pattern.
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