[Elecraft] K3 gain changes with filter selection

[Dick Dievendorff]

Are the filter offsets correct?

Duck, K6KR

Sent from my iPhone

On May 22, 2010, at 1:28 PM, "Richard Haendel" <rhaendel at Q.com> wrote:

> 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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