[Elecraft] 6 KHZ FILTER

[K4PI.Mike Greenway]

I recently got a K3S with a 6 Khz filter.  Previously had just a 2.8 for 
DATA which would go to 3.20 Width and 2.60 Freq Center.  With the 2.8 
deselected in the Config menu and only the the 6 KHz selected for Data I 
can still only go to 3.20 Khz Width and 2.60 width.  On AM I can go to 5 
Khz Width and 1.70 Freq Center.  Why am it not able to do more width 
with the 6 Khz in DATA mode?  I want a wider filter in DATA than the 
2.8.  Appears the 6 Khz only helps me in AM. Am I missing something here 
or the K3 just does not allow wider width in DATA.  Any thoughts 
appreciated.  73 Mike K4PI