[Elecraft] K3S Noise reduction Test

wa9fvp repair at willcoele.com
Tue Jun 20 14:53:52 EDT 2017


Believe it not, the idea of adding NR delay is not new.  Back in 91, when I
did the testing for the Hamblaster, we were experimenting with NR delays.
Even with the Hamblaster the delay function made very little difference.   I
only settled on two delay settings.  All of the others, there were about 50,
yield no change in the aural bandwidth.  The NR reduction level had the
greatest impact.
 
I used the DSP Noise Blanker setting on several occasions and found it more
affective on low level electrical noise.  The NR setting or the conventional
NB wasn't as affective. 
 
-- 

Jack WA9FVP- http://www.willcoele.com/radio_repair
<http://www.willcoele.com/radio_repair> 

The Radio Reclamation Center (815) 463-9365
 
From: Nicklas Johnson [via Elecraft]
[mailto:ml+s365791n7631919h5 at n2.nabble.com] 
Sent: Tuesday, June 20, 2017 12:30 PM
To: wa9fvp <repair at willcoele.com>
Subject: Re: K3S Noise reduction Test
 
Correct me if I'm wrong, but is it not the case that the NR on the K3 isn't 
just a case of "more" as you change settings, but also a case of changing 
the _type_ (or strategy) of NR?  Or am I thinking of NB? 

   Nick 

On 20 June 2017 at 10:20, Jim Brown <[hidden email]> wrote: 

> On Tue,6/20/2017 10:09 AM, Dave Cole wrote: 
> 
>> It works very well!  I think there are too many 
>> settings and some can be eliminated.  What are your thoughts? 
>> 
> 
> Elecraft's NB and NR systems are designed so that they can be optimized 
> for a wide variety of noise, and a wide variety of operating modes -- CW, 
> SSB, AM, FM, and a dozen different digital modes. What's optimum for you 
> may not be optimum for others with DIFFERENT sorts of noise and different 
> modes. Like with shoes (and earphones), one size does not fit all. 
> 
> The logical response of a user is to do what you did -- try all the 
> settings and find those that work best for your noise and operating 
> conditions. 
> 
> 73, Jim K9YC 
> 
> 
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-- 
*N6OL* 
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real. And if you have to lie to support a position, that position is not 
worth supporting. 
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Jack WA9FVP

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