FWIW I hear the difference as the 250Hz kicks in as I change the bandwidth
from 300Hz down to 250Hz, the difference is (I think) less DSP noise - maybe
Lyle can explain. It's not a problem at all.
For SSB I have the 1.8kHz and that really is a great filter, I was listening
on 40m a few hours ago with 1.6kHz bandwidth - very, very good.
I agree about 1kHz for tuning about on CW.
Simon Brown, HB9DRV
----- Original Message -----
From: "Vic K2VCO" <[EMAIL PROTECTED]>
For regular SSB work, the standard 2.7 kHz filter should be fine. The jury
is still out on whether the 8-pole 2.8 is worth the extra money.
For CW, you should have the 500 or 400 (same caveat about the more
expensive 8-pole version).
I have found the 1 kHz filter very useful for CW, because I like to listen
with a wider bandwidth.
Probably only serious digital guys need the 250. Remember that you can
narrow the bandwidth with the DSP, and the filters are only used to
protect the DSP from signals greater than about S9+30.
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