[Elecraft] Recommended K3/100 filters
Simon Brown (HB9DRV)
simon at hb9drv.ch
Mon Dec 10 12:29:48 EST 2007
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" <vic at rakefet.com>
>
> 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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