[Elecraft] K3 filter options

Dave Hachadorian k6ll at arrl.net
Mon Jan 3 15:27:11 EST 2011


>On the 1st i have: Main rx: 2.7 / 2.1 & 400hz for cw

Those are pretty good choices.  I have settled on 2.7, 1.8, and 
250.

I "told" the K3 that the 1.8 was 2.1, so the 1.8 switches in at 
dsp bw = 2.1.    Just normalize, then use only HI CUT until FL2 
switches in.  The 1.8 sounds great that way on SSB. You can go 
much lower with HI CUT if QRM is heavy.

I "told" the K3 that the 250 was 400, so the 250 switches in at 
dsp bw = 400.  The 250 works great for CW and RTTY.  On RTTY, 
even with dsp bw = 300,  you get a nice symmetrical 
FFT/waterfall, with no visible attenuation at the mark or space 
frequency.


Dave Hachadorian, K6LL
Yuma, AZ











































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