[Elecraft] K3/K3S noise blanker performance greatly enhanced (at my QTH) -- need testers

[Dave Cole]

Isn't that how the Transporter in Star Trek works?  :)
-- 
73's, and thanks,
Dave

For software/hardware reviews see:
http://www.nk7z.net

For MixW support see:
https://groups.yahoo.com/neo/groups/mixw/info

For SSTV help see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info



On Sun, 2016-02-07 at 00:03 +0000, David Woolley wrote:
> Noise reduction is a difficult problem and hearing aid manufacturers 
> have been trying to solve it for the last couple of decades.
> 
> One important point to note is that noise reduction is normally aimed
> at 
> reducing subjective noise and therefore reducing fatigue.  Generally 
> what you are doing is actually recognising signal, then suppressing 
> those frequencies that are not conveying the signal.  The noise on
> the 
> same frequencies as important parts of the signal still gets through.
> 
> You cannot remove noise unless you have first identified the signal,
> so 
> you cannot remove the noise that is masking an unknown signal.
> 
> The simplest noise reduction is a narrow band CW filter!  The
> ultimate 
> noise reduction for CW would be to decode the signal, and regenerate
> it, 
> but that is currently only possible for signals that are already
> clean 
> an well formed.
> 
> Decode and  recreate might be the ultimate solution for hearing aids,
> as 
> well.
>