K-3 Noise Reduction

[AD4C2009]

I own now my K3 for 2 years six months and I got 2 months ago a Flex-5000A and I can tell that even both radios work very good on reducing the band noise with the NR,the Flex makes a better job than the K3,it distord less and its easier to set it up.
I see you all guys in Dayton,in an hour I will start my long 20 hours drive journey to OH,.I will spend the 3 days at O'Hara arena,73
 
AD4C
 
 

"If freedom means something,it is the right to tell others what they don't want to hear" –George Orwell

From: Johnny Siu <[hidden email]>
To: Bill W4ZV <[hidden email]>; "[hidden email]" <[hidden email]>
Sent: Tuesday, May 17, 2011 10:00 AM
Subject: [Elecraft] K-3 Noise Reduction

Hello Bill,
 
I trust Elecraft engineers have already listened to some elecrafters' comments as compared with the NR in Icom radios. Elecraft will find ways to improve the NR by regular firmware updates.
 
I have no further to add but do suggest elecrafters try the NR in the latest IC9100 if you are going to Dayton.  You will notice it is a further improvement in NR in IC9100 when compared with their big radios especially in SSB. 
 
I am going to wear my callsign / name badge in Dayton.  I trust there will not be too many Asian faces there and you can easily identify me.  Of course, I will definitely visit the Elecraft booth.
 
See you later!

TNX & 73,


Johnny VR2XMC

從︰ Bill W4ZV <[hidden email]>
收件人︰ [hidden email]
傳送日期︰ 2011年05月17日 (週二) 8:06 PM
主題︰ Re: [Elecraft] K-3 Noise Reduction


KK7P wrote:
>
> In the end, NR is a filter, and like any filter it will affect what is
> being passed through it.  The weaker the signal, the more it appears
> like noise and the harder it is to separate the two.
>

This is why some of us use a relatively wide DSP filter (4-500 Hz) when
listening to ultra weak CW signals...so our brain's DSP can do a better job
of separating the signal from noise.  If you have an extremely narrow DSP
filter (either set by WIDTH or NR), noise going through that filter can
cause ringing which interferes with the signal.  Some of you may have
noticed the same effect with APF. 

I never use NR because it's essentially doing doing the same thing as
reducing WIDTH.  However I do find APF can help in some cases (again with a
fairly wide WIDTH setting) but it appears to be more effective in impulsive
noise (i.e. lightning induced) rather than white noise (i.e. galactic
noise).  That's the opposite of what I expected but that's how it works for
me.

As Lyle said:

> Finally, NR is part of a general field of psychoacoustics.  What some
people like, others barely tolerate.  Somewhat like tastes in music...

Each must experiment to see what works best for your own brain/ears.

73,  Bill
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[AD4C2009]

 I will be dressed all in black and with a baseball hat with my name and call sign on it.Look for the ugliest guy in black at Dayton,hi,hi

AD4C

 



"If freedom means something,it is the right to tell others what they don't want to hear" –George Orwell

From: Johnny Siu <[hidden email]>
To: Jim <[hidden email]>
Cc: Elecraft <[hidden email]>
Sent: Tuesday, May 17, 2011 10:24 AM
Subject: [Elecraft] K-3 Noise Reduction


Good, Jim.  I trust you know how to find me and Adam.


TNX & 73,


Johnny VR2XMC

從︰ Jim <[hidden email]>
收件人︰ [hidden email]
傳送日期︰ 2011年05月17日 (週二) 10:16 PM
主題︰ Re: [Elecraft] K-3 Noise Reduction

Johnny, look forward to seeing you at Dayton at either the Elecraft booth or with Adam.

I also find the NR on my K3 not to be one of the better ones but it is useable for me at only the very least aggressive setting. Hey! With the Icom you don't want to go past 10:30 or 11:00 o'clock because it becomes too aggressive.


73 de KE4WY Jim 

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Johnny Siu
Sent: Tuesday, May 17, 2011 10:01 AM
To: Bill W4ZV; [hidden email]
Subject: [Elecraft] K-3 Noise Reduction

Hello Bill,

I trust Elecraft engineers have already listened to some elecrafters' comments as compared with the NR in Icom radios. Elecraft will find ways to improve the NR by regular firmware updates.

I have no further to add but do suggest elecrafters try the NR in the latest IC9100 if you are going to Dayton.  You will notice it is a further improvement in NR in IC9100 when compared with their big radios especially in SSB. 

I am going to wear my callsign / name badge in Dayton.  I trust there will not be too many Asian faces there and you can easily identify me.  Of course, I will definitely visit the Elecraft booth.

See you later!

TNX & 73,


Johnny VR2XMC
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Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html
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