[Elecraft] K3 NR needs improvement

Cady, Fred fcady at ece.montana.edu
Thu Sep 5 19:39:20 EDT 2013


_I have a pretty high line noise problem here on six meters and the NR doesn't make much of a dent in it. However when I tried the noise blanker it worked great -- 10_12 DB of noise reduction as shown by wsjt. Try it. Start with the IF blanker first and then add in some dsp.

Also, make sure your agc isn't activating on the noise. If your audio noise level increases if you turn agc off, set the THR a bit higher.


73,
Fred ke7x

_______________________________________
From: elecraft-bounces at mailman.qth.net [elecraft-bounces at mailman.qth.net] On Behalf Of Roger de Valle [roger at genette.biz]
Sent: Thursday, September 05, 2013 4:03 PM
To: 'Elecraft List'
Subject: Re: [Elecraft] K3 NR needs improvement

I live in a high noise environment for 40 and 80m and find I can never get a
useful result with the noise reduction on the K3, subsequently I never use
it. I find that my other rigs finish up far more comfortable to listen to on
these frequencies where noise is prevalent. In an otherwise excellent radio
this is a major disappointment, I might be wrong but most of the software
effort seems devoted to the KX3 so I am not expecting any change soon.

73 Roger VK3ADE.

Subject: Re: [Elecraft] K3 NR needs improvement

Eric -

What NR settings are you using on CW?  I can't get rid of the background
white noise with the K3 NR like I can with my Orion NR. I wish I could!

My K3 is never 'silent' with NR turned on.

73 de K1ESE
John


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