[Elecraft] K3 filter gain

lyle johnson kk7p at wavecable.com
Sat Sep 24 12:05:54 EDT 2011


Hello Kjeld!

Increasing the filter gain value does not make the K3 
receiver more sensitive, nor does it compromise dynamic 
range.

The purpose of allowing adjustment of the filter gain 
parameter for each installed roofing filter is to 
*balance* the signal level prior to the AGC detector. 
 Then, if you change roofing filters as you adjust 
selectivity, the audio level or S Meter reading won't 
suddenly change.

73,

Lyle KK7P

> 
> The K3 manual has some recommended values for filter 
> gain....
> My reason for considering higher values is of course to 
> hear weaker signals.


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