[Elecraft] CW Mush

[Ted Edwards W3TB]

This is VERY interesting.
I have never even thought much about AGC in my 8-year old K3, so I did that
just now.
I changed the THR to 12 and the SLP tp 003.  Will watch for the difference.
I am really a CW operator here.

Thanks for the good wisdom!

On Thu, Jul 2, 2020 at 7:10 PM Wes <wes_n7ws at triconet.org> wrote:

> 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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-- 
73 de Ted Edwards, W3TB and GØPWW

and thinking about operating CW:
"Do today what others won't,
so you can do tomorrow what others can't."