Re: Three Recordings

Posted by pd0psb on
URL: http://elecraft.85.s1.nabble.com/Three-Recordings-tp4264831p4266401.html

Clear Don,

I was referring to this particular wav file, where the AGC threshold is clearly set low and interacting quite strongly with the noisefloor.

But ofcourse, not sure yet if I picked the right file :-)

73'
Paul
PD0PSB


 

Don Wilhelm-4 wrote

Paul,

The K3 "bumpy road" AGC can be cured by use of the AGC menu Threshold
and Slope parameters, there is no reason for it to be bumpy.  Try
Threshold 008 and Slope 002 for an AGC response that behaves much like
the K2.  The slope can be increased if you want all signals to sound
closer to the same audio level, but reduce the Threshold carefully.  The
Threshold is the major contributor to the "bumpy road" observation.

73,
Don W3FPR

pd0psb wrote:
> My votes in this contest, can we win a P3 :-)
> wav #1 is K3.
> recognized by:
>
> -cleanest overall passband (the others obviously have substantial wideband
> gain *after* the CW filter,resulting in surrounding WB noise)
> -but K3 has most "bumpy-road" agc of the 3
>
> 73'
> Paul
> PD0PSB
>  
>
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