[Elecraft] K3 SSB Noise Reduction

[mark roz]

David,

There is nothing to think about.
There is for sure significant reduction of volume.

Just listen to the station on 20m (low noise) using speaker 4 feet away. Adjust the volume (to low level) to the point that you could still understand what the person is saying. Than push NR. I bet  that volume will drop to the point that you will not copy the station.

Certainly, not compensating for AF gain loss when NR is engaged makes 
noise reduction function "work much better"
NR in CW works fb. Little AF gain Loss.
Mark   
 


--- On Thu, 3/20/08, David Ferrington, M0XDF <M0XDF at Alphadene.co.uk> wrote:

> From: David Ferrington, M0XDF <M0XDF at Alphadene.co.uk>
> Subject: Re: [Elecraft] K3 SSB Noise Reduction
> To: "F5VJC" <foxfive.vjc at gmail.com>
> Cc: elecraft at mailman.qth.net
> Date: Thursday, March 20, 2008, 4:43 PM
> Is it really a reduction in volume, or is it that with the
> noise gone,  
> it sounds quieter?
> I've noticed the 'apparent' reduction in
> volume, but I actually think  
> its that the NR has removed all the spurious noise and the
> result is a  
> cleaner audio that somehow sounds lower volume.
> -- 
> The high minded man must care more for the truth than for
> what people
> think. -Aristotle, philosopher (384-322 BCE)
> 
> On 20 Mar 2008, at 20:37, F5VJC wrote:
> > For NB please read NR, still, why the reduction in
> volume?
> > mark roz wrote:
> >>
> >> Can anybody explain to me why with NR engaged  SSB
> signal drop's in  
> >> volume
> >> significantly. AF volume has to be readjusted
> every time the NR is  
> >> turned
> >> ON and than again when is turned off.
> >> NR is on F1-1.
> >> I don't believe that this is normal.
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