--- In digitalradio@yahoogroups.com, Mark Milburn <markk...@...> wrote:

> Yes, there are a LOT of repeats when the bands are poor.  Signal
strength is not the only criteria.  I don't have a technical
background to explain it or even understand it, but there are plenty
of days when a signal of S7 will be solid copy..and other days when it
will not. 

Part of the problem is that at 300 baud the bit length is only
3.3 milliseconds.  You can have multipath echoes that smear the
short bits even when signals are strong.  (That's one reason why
110 baud ASCII never caught on with hams, and even 75 baud Baudot
can be dicey.)


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