[Elecraft] K3: recommendations wanted for NR setting

Brett Howard brett at livecomputers.com
Tue Aug 5 21:44:56 EDT 2008


Its kinda tough for me to give a good A/B comparison.  I had the rig for
a while then had to ship it back for a bit of work then when it came
back I upgraded...  I remember the NR working better before I got it
back....

On Tue, 2008-08-05 at 21:23 -0400, hank k8dd wrote:
> Pre Firmware 2.20 I uses AGC SLP 4 and AGC THR 8 to 
> make the K3 sound like the K2 AGC.  At least on CW.
> And used NR F2-4.  That worked great at Field Day.
> 
> Since Firmware 2.20 I cannot find a setting that accomplishes
> two things ....
> Sounds like a K2 and the audio level for NR on & off is about
> the same
> And with NR on (most any setting) now the received CW  sounds
> soft, or very slow attack time.  At higher speeds it is possible to 
> miss a leading dit in a character.  
> 
> But at this point AGC SLP and THR both equal to 2 works fine 
> (to my ears) with loud and weak signals, but when I turn on NR
> the received signal goes very soft.   If I set NR = F1-1 through
> F1-3 it isn't too bad.
> 
> 73    Hank    K8DD
> 
> 
> ----- Original Message ----- 
> From: "Vic Abell" <abe at purdue.edu>
> To: <elecraft at mailman.qth.net>
> Sent: Tuesday, August 05, 2008 7:18 PM
> Subject: [Elecraft] K3: recommendations wanted for NR setting
> 
> 
> >I just completed K3 1162 and am interested in setting
> > its NR to an optimal value for combating summer QRN.
> > I am currently using "F 1--4" with some success, but
> > would like to hear about the settings others prefer.
> > 
> > Any other advice on other ways to reduce QRN and back
> > ground noise with K3 features would be welcome, too.
> > 
> > 73,
> > 
> > Vic-W9RGB
> > 
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