[Elecraft] K3: narrow filter

[K4IA at aol.com]

There are two levels of filtering going  on.  

The DSP (software) filtering is independent of the crystal  roofing 
(hardware) filtering.  You set the roofing filters to automatically  kick in to 
match what you dial for the DSP.  You have to tell the radio  what filters you 
have installed and when you want them to kick in.  It is  all in the menus.  
I have mine set up so the 500 hz roofing filter kicks in  when I reduce the 
DSP to 600 hz.  

Sounds to me like you don't have  the filters coordinated.

Buck
k4ia
k3# 101

In a message  dated 7/14/2010 10:45:38 A.M. Eastern Daylight Time, 
cx6vm.jorge at adinet.com.uy  writes:
Hello,



I have in my K3, in both MAIN and SUB this  filters:



KFL3A-400  400 Hz, narrow 8-pole   filter

KFL3A-1.8K  1.8 kHz, 8-pole filter



When I  reduce “width”, I notice that it went down to 200 in CW. This is
true?  



So that´s means I don´t need the KFL3A-250  250 Hz, narrow  8-pole  filter 
to
narrow less than  400Hz?



73,

Jorge

CX6VM/CW5W

K3  #4077





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