[Elecraft] K3S audio board for K3 upgrade?

Don Wilhelm w3fpr at embarqmail.com
Mon Mar 21 13:21:19 EDT 2016


LS,

If your problem is more related to "band noise", you may want to 
investigate the AGC Threshold and Slope settings on the K3 and K3s.
To my ears, the K3/K3S sounds a bit 'noisy' with the default AGC 
settings.  Increasing the Threshold and decreasing the slope may help.
For information on evaluating the results of any changes, refer to the 
"Noisy K3" article on my website www.w3fpr.com.
Pay particular attention to the points about observing the results 
during pauses in a transmission.   Attempting to listen only to the band 
noise with no signal present will result in changing the settings in 
exactly the wrong way.

73,
Don W3FPR

On 3/21/2016 12:57 PM, lstavenhagen wrote:
> As for the why's and wherefore's of what I don't like, I've noted that in my
> other responses. Again, for me, it's the upper mid kind of rasp of the band
> noise that I find to be similar between the two rigs. And what I find to be
> much better on the K2.
>
>



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