[Elecraft] K2 DSP/Crystal Bandpass Alignment for PSK31

[Bill Strong]

I am trying to align my 250 hz crystal filter with a 200 hz DSP filter in the
middle of the passband of my 2500 hz SSB filter for the purpose of
transmitting and receiving PSK-31 in the middle of the 2500 hz filter
bandpass.

I have succeeded in moving the crystal filter by changing the bfo setting.
It is centered at 1400 in the 2500 bandpass. When I try to narrow the S4 SSB
DSP filter it will only narrow to 1000hz spread from 600Hz to 1600 Hz in the
bandpass. It seems that the CW DSP filter goes down to 200Hz. I tried the
RTTY/DATA mode but was not able to make any sense of what the filters
relationship would be when I tried changing the settings.

Any help would be apprciated.

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