[Elecraft] K3S Noise Reduction

[Brian Hunt]

There was a very good description of the K3 NR written by Lyle, the DSP designer for Elecraft. It may be on their website. 

Basically, as I understand it, the NR is designed to work against random noise. Noise that has a correlated component, like line noise, it doesn’t address as well. 

I’ve found that, properly adjusted, it works very well on CW but using it on SSB created unacceptable “mush” on the audio. 

Hopefully the spectral subtraction NR when available on the K4 will be much better. 

73,
Brian, K0DTJ

> On Nov 6, 2022, at 17:34, Richard <FlatHat at comcast.net> wrote:
> 
> Is there ANY way to make the NR feature work worth a damn? In general, when I turn it on, the audio level drops to almost nothing, and none of the Adjustment setting do much of anything.
> 
> My other two radios, an old Icom and a new Icom, both have very effective NR features.
> 
> Is this a design heartbreak, or is my radio looking at ANOTHER trip to the factory?
> 
> Firmware # UC 05.67
> 
> Cheers.
> 
> Richard Kunc
> W4KBX
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