[Elecraft] Filter Selection Approach

[.k8dd.]

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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