On Jan 16, 2012, at 11:42 PM, Bill Turner wrote:
> If Ed sends 599 CA and it gets garbled so it prints 599 CO, the other
> guy sees it's a valid state name and will copy it correctly but the
> information is wrong.
This particular example is probably [sic] not a good choice, Bill :-).
4 out of the 5 Baudot bits of an "A" would have to flip themselves to produce
an "O." A single "CA" printing as "CO" is going to be quite rare.
Threshold biasing from QRM that is on one side of the RTTY signal will not
likely produce the CA-to-CO error either, since both A and O have the same
Hamming weight.
On the other hand, "CA" turning into "VA" requires only a single bit change.
73
Chen, W7AY
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