[Elecraft] CW Mush

Wes wes_n7ws at triconet.org
Thu Jul 2 20:09:23 EDT 2020


Please explain to me where this non-linearity is generated. If 1 volt of RF 
(really I-F) gain reduction causes 10 dB of gain reduction, prey tell what 
difference does it make if the 1 volt is generated by an AGC circuit or a manual 
control?  Either way, *all* signals are reduced 10 dB. What's non-linear about that?

Wes  N7WS

On 7/2/2020 3:18 PM, David Gilbert wrote:
>
>
> What are your AGC settings?  I have a K3 with the new synths and I use almost 
> the least AGC possible ... THR = 12 and SLP = 000.
>
> AGC creates non-linearity, the non-linearity is most pronounced at the signal 
> level where it kicks in, and non-linearity creates mixing.  Do the math for 
> the sum and difference frequencies when you have multiple signals very close 
> to each other within the receive passband.
>
> 73,
> Dave  AB7E



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