[Elecraft] K3: Choosing which filters to buy

[DOUGLAS ZWIEBEL]

Shane:

With respect to a CW filter...

If you are a "casual" cw op (or plan to be), then I would not get any
"cw" filter.  The 2.7kc roofing filter is already narrower than 99% of
everything else available out there (for a roofing filter).

As for the final BW, use the DSP and you can crank it down to 50hz
(really, really narrow!).  It works really well too.

I am an AVID cw op and I use the 500hz filter (5 pole) because 99% of
my operating is DX Contesting.  Outside of contest, I think that you
would be hard pressed to find a situation (outside of Europe on 40m or
low band DX pileups) where you would "need" a narrow CW roofing
filter.

If you simply "must have" a cw filter, I would suggest either the 500
or 400.  You already know which one I use.

de Doug KR2Q