Hi, George,
>
> Is this what you are referring to? Or do you want to be able to hear
> only the "single (no hyphen) signal" that you are working or listening
> to, all others being excluded?
The latter. Strictly the latter.
>
> If the former, I have found that filter bandwidth has little to do
> with"the other side." Any good filter should have adequate rejection
> for that task almost without regard to its passband width.
Tell that to an FT-817 with only the stock SSB filter. (Yuck!)
>
> If the latter, then I can appreciate your desire to use the narrowest
> possible filter. I frequently use 50 and 100 Hz IF DSP filters on my
> PRO when the going gets really rough! <:}
That's exactly what I mean, and I am referring to both SSB and CW. I
consider a narrow SSB filter to be the best QRM fighting tool on SSB and
a 250Hz or narrower filter to be a must for me on CW. Narrower is
better provided it doesn't ring or become impossibly hollow sounding.
72/73,
Caity
KU4QD
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