[Elecraft] K3 - noise reduction query
Joe Subich, W4TV
lists at subich.com
Fri Jul 4 09:36:29 EDT 2014
> The sad part is that My cheap little Kenwood TS480 does a much better
> job of cleaning up this noise.
You are trolling for complaints on the Elecraft noise reduction - not
looking for a "solution". The Elecraft noise reduction is designed for
"smooth" noise - not impulse noise which is a noise blanker function.
A smooth noise reduction system (LMS) operates by forming bandpass
filters around what it determines to be "signal" components and passing
just the "signal". You will have better results with lightning by
working with the noise blanker - probably on a "long" setting - as
it is designed to work with fast rise time signals.
73,
... Joe, W4TV
On 2014-07-04 9:17 AM, Bill W2BLC wrote:
> It is lightning season and I have been floundering around the menus on
> the K3's DSP NR system. I have found no setting that really do much of
> clean-up on lightning static. I also have tried using the ATT and RF
> Gain settings also.
>
> The sad part is that My cheap little Kenwood TS480 does a much better
> job of cleaning up this noise.
>
> Of course, lightning static is very random and difficult to reduce. My
> use of HF is 40 and 75, so directional antennas are not an option - as
> some suggested.
>
> Please do not answer with direct emails - the group needs to share in
> this knowledge.
>
> Thanks,
>
> Bill W2BLC K-Line
>
>
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