[Elecraft] [K3} AGC White Paper

Fred Jensen k6dgw at foothill.net
Mon Mar 6 15:13:22 EST 2017


I think about it as follows:

THR: The signal level at which AGC action begins.  Lower number = lower 
signal level where AGC begins.

SLP: Wayne is an EE and I'll bet he views SLP as the degree of gain 
compression in the AGC system.  Thus, higher SLP values mean a higher 
amount of "compression" [and more flat] curve after threshold.

I'm a math dude, not an EE, and I view "slope" as the first derivative 
of the AGC gain function ... which is unfortunately exactly backwards to 
the way it really works.  I get around this by assuming "SLP" is a 
really weird acronym for COMPRESSION and not for SLOPE.

Maybe that will help you.

73,

Fred K6DGW
Sparks NV
Washoe County DM09dn

On 3/5/2017 11:29 PM, Erik Basilier wrote:
> I don't know about others, but I tend to forget the
> direction of parameters such as AGC "slope". Do I want to increase or
> decrease the number to achieve my intended result?



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