Related to the earlier question about amateur radio ASCII,
there was also the occasion when the 60wpm limit was lifted
and 100 wpm Baudot was allowed.  This too never became popular
because only the guys who had Model 28 machines could use it,
and because the shorter bit length (13 ms. versus 22 ms.)
was more sensitive to errors, both from increased bandwidth
and from multipath propagation.  I believe Navy MARS made some
use of 100 wpm RTTY.


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