[K3] [Elecraft] FLx GN Adding Db gain

Ken_ke2n ke2n at cs.com
Tue Nov 11 10:22:32 EST 2008




FLx GN

I've bought a 400hz  eight pole CW filter. Although the manual recommends
1-2 db for a setting, I see that the adjustment can be higher. What setting
are most CW operator using? 
<unquote>

I measured the gain change going from 450 Hz to 400 HZ (where the rig
changes from the 2.8 filter to the 400 Hz filter) by turning the AGC off and
using WSJT v 4 signal power measurement function.

I got 6-7 dB less signal through the narrow filter .. it was very obvious to
my ear.

Anyway, I found the menu option for filter gain and put in 6 dB for the 
narrow filter and 0 dB for the wider filter and now the transition across
the 450- to 400 Hz bandwidth is very seamless. I am happy.

The 2 dB number is bogus, in my opinion/experience.

Ken
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