[Elecraft] Noisy RX redux

[Don Wilhelm]

Mike,

The audio low pass filter that was added to the DSP board do make a big 
improvement in the K3 perceived noise.

The AGC settings have a lot to do with that condition too, and I believe 
the default settings do not give he best performance, but your 
particular antenna and noise level have a lot to do with it as well.

Please check out the "Noisy K3" article on my website www.w3fpr.com for 
information in adjusting the AGC parameters to better suit your 
particular situation.

73,
Don W3FPR

On 7/4/2013 5:47 PM, Mike Reublin wrote:
> Shortly after I got K3 3935 in Sept. of '09, the furor over noisy RX kinda peaked, and the result was a board swap.
>
> A friend just bought a used K3 with a slightly earlier SN, and the RX background is very harsh and sharp sounding. We both came to Elecraft from a PRO II/III where the background in an A/B comparison is a soft swhoooooooooooosh.
>
> I'd like to check and see if it has the same mod, but I've slept since then and cannot remember what the mod was called, or how to check for it. A tour of the mods page didn't kick my recaller into gear.
>
> A related wish: List the serial number when a mod goes into production.
>
> n unrelated wish: HAPPY 4th!
>
> 73, Mike NF4L
>