[Elecraft] K3S audio board for K3 upgrade?

Fred Jensen k6dgw at foothill.net
Tue Mar 22 19:50:39 EDT 2016


Great advice.  Mine, from one who has done this unsuccessfully, and then 
with advice, done it successfully, GO SLOW.  This means small changes to 
one parameter and some listening time before another change.  The 
changes to the various AGC parameters will have subtle effects, not all 
of which will be apparent on the first signal you listen to.  The K3 is 
incredibly configurable with multiple parameters, and the number of 
combinations is huge.  You need to creep up on it.

The right combo for you may differ between SSB and CW.  Try 75 [above 
3800] at night ... it's crowded and probably somewhat noisy [you can 
ignore most of the content, just go for the sound of the signal :-))]. 
On CW, I found DX pileups and pretended I was the DX tuning around the pile.

I had pretty much given up on the AGC as too complex and was going with 
the stock, out-of-the-box settings until I got this advice.  You can 
start with the stock settings or someone who believes they've achieved 
nirvana, but yours will depend on you.  Nobody hears the same you do and 
only you will know.  Just go slow and you'll find your sweet spot, I did.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 3/22/2016 4:00 PM, Don Wilhelm wrote:

> So the preamp and attenuator settings are the first order of business.
> After that, attack the AGC Threshold and Slope using the information at
> my website www.w3fpr.com "noisy K3" article as a guide.



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