[K3] [Elecraft] FLx GN Adding Db gain

[ni0c]

K3NA wrote:
"I've looked at three 400 Hz filters to date and values do vary from 
filter to filter; one of mine required 6 dB gain.  Other 8-pole filter 
bandwidths also vary a bit as well.

Just measure all the filters in the radio and true up the gains.  Don't 
need to worry about what the actually gain numbers are, as long as they 
can be goosed up to a uniform level."


I have the 500 Hz 5-pole, 400 Hz 8-pole, and 200 Hz 5-pole filters
and "trued up" the gains by ear and came up with 2dB, 6dB, and 
8 DB respectively.  This ability to adjust the gain in one dB 
increments to compensate for filter insertion loss is a wonderful
feature of the K3.  BTW, the 400 Hz 8-pole is my favorite CW
filter.  

73,
Chuck Guenther  NI0C

K2/10 s/n 5853
K3/100 s/n 1061



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