That is a lot of filters ...
2) Unless you are in very heavy QRM/pile-up situations the
roofing filter does not provide a lot of "value added"
since the final bandwidth is determined by the DSP. The
1 KHz filters add little benefit vs. the 1.8 KHz or 1.5
KHz filters.
I would disagree regarding the value or benefit of the 1 KHz filter.
Originally I had, for CW, 1800, 500 & 200 filters. Since I normally set the
width to 700 Hz for normal non contest CW operating, it seemed that I was
having problems with loud signals within about 900 to 1800 HZ hitting the AGC.
So when a 1000 HZ filter became available to trade for my 1800 HZ filter I
jumped on it and have not looked back!
Last year in CQ WW CW I have had a chance to sit down on 20 meters with a K3
with 400 & 250 HZ filters. I was very happy to switch radios back to my K3
with 1000, 500 and 200 HZ filters.
To my ears the 500 & 200 filters were a definite advantage sorting out the
weaker European signals in between the loud east coast U.S. stations.
This was not at all a scientific test - just how it sounded to me!
Both K3s were using the same firmware.
And I really think if I had purchased a K3 with no roofing filters, like I've
seen suggested, I would have most likely sold the K3 and gone back to a K2!
Just my thoughts.
73 Hank K8DD
--
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