[Elecraft] K2 / 100 - SSB Filters

David Wilburn dave.wilburn at verizon.net
Wed Nov 28 14:29:40 EST 2007


I participated in a couple of contests lately with my K2/100, and I was
amazed how I could drill down and isolate CW signals with the
combinations of xfil/afil's (KDSP2).  It was VERY rare that a
combination of FLx/CFx didn't make the problem go away completely.  In
those cases it diminished it enough that I could ignore it.

In the SS SSB contest, working through the FLx filters did not seem to
have much impact against strong adjacent signals. Does this mean I need
to go back through and re-visit the filter alignment for the SSB stages?
I imagine that in some cases, with the size of noisy amps the SSB'ers
use, nothing with help.  Current settings are;
FL1-OP1
FL2-2.00
FL3-1.80

Will going through the filter alignment for SSB help with this?  Is
there a setting in there (can't recall) that steepens the skirt?  Will
tweaking the afil/SFx filter settings help any?
-- 

David Wilburn
k4dgw at k4dgw.com
K4DGW
K2 S/N 5982




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