Mark:

I saw your piclist post regarding "Software Modem" issues.

Could you point me in the direction of information on how to demodulate
an MSK signal at 200 baud.  [the Coast Guard sends correction
information
for the Global Positioning System (GPS) via Longwave radio at 100 or 200
baud.
I am located far from the beacon transmiter and would like to use a
scheme
that is more efficient that using an FSK demodulator.

Thanks,
Brooke Clarke, N6GCE