[Elecraft] K3 gain changes with filter selection

[N3XX]

Look in the manual on page 46 - "Filter Loss Compensation".
Following the procedure there should get them equalized for you.

73,
Tim - N3XX

----- Original Message ----- 
From: "Richard Haendel" <rhaendel at Q.com>
To: <elecraft at mailman.qth.net>
Sent: Saturday, May 22, 2010 4:28 PM
Subject: [Elecraft] K3 gain changes with filter selection


>I have a K3 with three filters, 2.7 KHz (FL1) , 400 Hz(FL2)  and 200 Hz ( 
>FL3) .  When I reduce the bandwidth from 4.0 KHz, the radio performs as 
>expected EXCEPT when the the different filter switches in. When I reduce 
>the bandwidth and it switches from FL1 to FL2, the receiver gain goes up at 
>least 12 dB. Whe I further reduce the bandwidth and the radio switches frm 
>FL2 to FL3,  the gain reduces to that of FL1.  Filter gains are set at 0 
>dB, 1 dB and 3 dB for FL1 thru FL3.  This happens in USB as well as CW. 
>When I use FL2, I need to turn down the RF gain. What's happning?
>
> Rich W3ACO
>
> .
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