I've been succsessful in interfacing the New England QRP club NESCAF filter
kit
in place of the hard to find CW audio filter board in my Analog Argosy.
I also have the accessory 500 Hz crystal filter installed.
In the course of testing, I can see that the bandpass of the crystal filter
is
up around 1000 Hz or so.
I want to shift the BFO down to get the filter passband down closer to 750
Hz.
I'm trying to wrap my head around doing this since the SSB Gen board
alignment
is performed in TX mode per the manual. Also the actual frequencies for SB-N
and
SB-R are not listed.
Anyone have any ideas for shifting the accessory filter passband down
without
skewing the SSB performance?
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