Audio filtering (DSP or otherwise) is no substitute for a reasonably narrow IF filter. If you
want to operate CW on the FT-817 I suggest the 500 HZ IF filter. From what I have seen
the BHI DSP doesn't work all that great on CW. If you are looking for DSP noise reduction
for SSB and CW I recommend that you visit the West Mountain Radio site and look at the
external CLRDSP or DSPspeaker (same DSP functionality for both). Both are external audio DSP
solutions but seem to work well (I have a CLRDSP on my birthday wish-list) and because
they are external they can be used on another rig, if you have one.
P.S. I suggest you listen to the sample files that West Mountain has on their website .. it features audio recordings along with the same audio (SSB and CW signals) pumped through
the CLRDSP as well a couple of their competitors audio DSP solutions.
I'm planning on getting an FT 817 with accessories.
Can the BHI DSP unit be used with headphones? Can it be used for CW or
is it for SSB only?
Is it worth getting the DSP AND the filters?