[Elecraft] K3 NR

[.k8dd.]

Tony .....

Yeah, I couldn't have said it better about the NR as it is now - you 
nailed it.  See what the next few DSP f/w's have!

I had an IC 746 (not PRO) - the NR on it was great .... and it was just 
that - Noise Reduction, pure and simple.  We took it to V47 about 6 
years ago and it was almost as good as the K2/100 w/o the KDSP2.  Wish 
I'd have never sold the 746!

73    Hank    K8DD



N2TK wrote:

> I do see a reduction in audio when turning on the NR with SSB. As an
> example, I usually have the AF control around 9-9:30 position using an
> external speaker or my Heil headphones. When I turn on the NR I have to use
> around 10:30-11:00 position for the same audio. This is using F1-1. As I
> increase (Fx-y) X from one to 4 the audio level reduces. As I increase Y
> from one to 4 the audio level also decreases. So if I go to F4-4 I have to
> crank the AF control fully CW and I still am not at the audio level I was
> with the NR OFF and the AF control at 9:30.  Also I can definitely pull out
> weak SSB signals better with the NR OFF. Right now the noise level is low,
> so not sure what impact that is having.
> With CW I do not need to change the AF level. I do like the way the NR works
> on CW.
> Typically I have the RF gain control fully CW or close to this position.
> When running I don't want to be fiddling with knobs or get my ears blown
> off.
> Both $1435 and #311 behave the same.
> 
> I still like the Icom 756Pro III's NR better. I find I can leave the NR ON
> at a low level to just take the background noise away without causing issues
> or artifacts with received signals. 
> 
> Because  of the  varying comments on how the latest NR is behaving I am
> wondering if there are any other parameters, especially with the AGC that
> would account for these wide variations?
> 
> Work in progress.
> 
> 73,
> N2TK, Tony
>