Date: 2014-03-01 20:36:05 +0000 (Sat, 01 Mar 2014)
AFSK demodulator improvements
The bandpass filter that filters out the AFSK signal have been improved for
better demodulation. It is now a linear phase FIR filter designed using the
Parks-McClellan (Remez) algorithm. The previously used IIR filter caused
inter symbol interference and phase distorsion.
The correlator filter order was lowered one step which improved demodulation
The synchronizer error tracking gain was lowered to half its value.
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