Re: FLx GN Adding Db gain
Posted by
KK7P on
Nov 11, 2008; 3:33pm
URL: http://elecraft.85.s1.nabble.com/FLx-GN-Adding-Db-gain-tp1330201p1485534.html
> 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.
You can also use the AFV/dBV function in the radio to directly measure
the filter insertion loss.
I won't give you a step by step procedure. That is left as an exercise
for you.
I will suggest that AGC ought to be OFF, the signal you tune in ought to
be steady with a good SNR, and that the K3 has an internal oscillator
around 49.380 MHz.
Enjoy!
73,
Lyle KK7P
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