[Elecraft] great article on AGC by Fred Cady

[Andrew Faber]

Ian,
At P49Y, I also like to use SLP=0 for pileups, because then one can "ride" 
the RF Gain control to try to differentiate signals within a pileup. On the 
other hand, for casual operation, it is easier on your ears to use higher 
values of SLP in order to make the volume of signals more constant.  This 
also works better in a contest for the second radio if it is used for S&P on 
another band.
73, andy ae6y p49y

-----Original Message----- 
From: Cady, Fred
Sent: Wednesday, November 16, 2016 3:19 PM
To: glcazzola at alice.it ; elecraft at mailman.qth.net
Subject: Re: [Elecraft] great article on AGC by Fred Cady


Hi Ian,

Most of my operating has been contesting and dealing with pileups.  I want 
to have the most discrimination or differences between different strength 
signals in the pile up.  And it would also like the radio to be as linear as 
possible.  So I would normally use a high threshold and SLP=0 (oddly, that 
is the steepest slope) so that loud signals sound loud and weak signals 
weak.  On the other hand, for rag chewing in a you might want all signals to 
sound pretty much alike.  Then choosing a low thr and slope=15 will flatten 
out the signals.


Don has some great ideas on setting AGC in his article, especially regarding 
noise.  It is easy to hear (and see) if  you have the THR set too low and 
noise is activating the AGC.  Tune to a noisy band and then start cranking 
THR down.  When you get too low you can easily hear the noise level 
decrease.  If you set up the dBV measurement you can actually measure the 
reduction in audio level.


73,

Fred KE7X

________________________________
From: Elecraft <elecraft-bounces at mailman.qth.net> on behalf of Don Wilhelm 
<donwilh at embarqmail.com>
Sent: Monday, November 14, 2016 4:16 PM
To: glcazzola at alice.it; elecraft at mailman.qth.net
Subject: Re: [Elecraft] great article on AGC by Fred Cady

Ian,

You might also want to look at the information on my website
www.w3fpr.com<http://www.w3fpr.com> - Article on "Noisy K3" for more 
information about how to
adjust your AGC parameters for your particular tastes and band conditions.

73,
Don W3FPR

On 11/14/2016 5:19 PM, glcazzola at alice.it wrote:
> Fred, I have seen your great article on AGC version 4.51 on your web 
> page.I hadnt seen it before, my mistake.Now I have understood better how 
> it work, THR and SLP, on K3/K3S.But, sorry, I repeat the question: what 
> is/are the setting/settings that you prefer?For CW dx-ing and CW 
> ragchewing, expecially.Thanks Ian IK4EWX
>
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