[Elecraft] K3: AGC Adjustment

[Don Wilhelm]

Olli,

I don't think it is so difficult that one needs "AGC for dummies".  If 
you want every signal to have about the same audio level, then set the 
slope to a higher number, but if you want to hear that a strong signal 
is louder than a weaker signal by ear (without looking at the S-meter), 
then go for a smaller numbered slope.  That is what Jack Smith's charts 
indicate - and I have set my slope to 2 since that setting is close to 
the AGC response on the K2 which I liked.

The threshold is set so the AGC will not be active on weak signals - the 
lower the number, the lower the AGC action will start - set too low, the 
AGC can become active on band noise and will de-sense the receiver even 
though there are no signals present.  How much band noise is present 
will depend on atmospheric conditions, local QRN, and your antenna.

The beauty of the K3 is that it allows you to change the AGC behavior.  
If you are not of a mind to study the effect of various setting, I 
believe you would just leave it set at the defaults until you are ready 
to investigate the possibilities and learn about them - that is what 
defaults are all about IMHO.

73,
Don W3FPR

Olli Tuppurainen wrote:
> I have found so many different adjustment parameters for AGC in K3 that I
> would apperciate " AGC settings for dummies " type of instructions.  :)
>
> I previously owned IC-756PRO3 which can be used as reference of well
> functioning AGC among DSP radios. Very pleasant experience.
>
> Olli
> OH6CT
>   
>