[Elecraft] K3 Receiver mush

[Cady, Fred]

Perhaps what I should have said is that the slope of the gain curve for a given value of SLP changes as THR gets higher.  See the curve at http://www.ke7x.com/home/miscellaneous-k3-information/agc-4-51

As you can see, when THR is 20, the curve for SLP=15, SLP=7, and SLP=0 are virtually identical.  For lower THR levels, you can see the affect of different SLP values.


Cheers,

Fred



________________________________
From: Elecraft <elecraft-bounces at mailman.qth.net> on behalf of ab2tc <ab2tc at arrl.net>
Sent: Wednesday, February 22, 2017 8:59 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 Receiver mush

Hi Fred,

I think that's fairly easy to explain. *Below* threshold the AGC does not
act at all so the SLP settings *should* have no effect. It comes into effect
as soon as signal rises above threshold.

AB2 TC - Knut


Cady, Fred-2 wrote
> Thanks Ian I was about to point out those AGC data but you beat me to it.
>
> To emphasize the comments on SLP a bit, SLP = 0 gives you the best
> discrimination between signals of different strength ABOVE the THR level.
> When working a pileup I want that.  Setting SLP=15  is a flat slope and
> makes signals of different level sound the same.  You might want that for
> general rag chewing.  However, since version 4.51, higher THR levels also
> affect SLP.  For high THR, SLP=0 and SLP=15 are virtually the same. Alan
> explained that once but I'm not sure why that is so.
>
>
> BTW, it is easy to make macros to switch between different THR/SLP values
> for different operating conditions.
>
>
> Cheers,
>
> Fred KE7X
>
>
> For all KE7X books (and other information) see
> www.ke7x.com<http://www.ke7x.com&gt<http://www.ke7x.com<http://www.ke7x.com&gt>;.
>
>
> snip>





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