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Re: LF: Spectrum Lab Filtering...

To: <[email protected]>
Subject: Re: LF: Spectrum Lab Filtering...
From: "mal hamilton" <[email protected]>
Date: Sun, 8 May 2011 09:52:08 +0100
References: <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Wolf
Filters are useful but a good pair of EARS are better for CW.
G3KEV

----- Original Message -----
From: "wolf_dl4yhf" <[email protected]>
To: <[email protected]>
Sent: Sunday, May 08, 2011 9:36 AM
Subject: Re: LF: Spectrum Lab Filtering...


> Hi Stefan,
>
> Two or more frequency ranges for the auto-notch filter are already on
> the to-do list.
> Main problem will be where to put the graphic controls in the already
> too crowded user interface ;-)
>
> 73,
>     Wolf .
>
> Am 07.05.2011 22:26, schrieb Stefan Schäfer:
> > Hi Scott,
> >
> > I think there is not such a function so far. There is just a range
> > where you can limit the auto notch apply, like 0...500 Hz.
> >
> > Today i improved the readability of a CW signal. The side tone was at
> > 800 Hz. The filter has a BW of 200 Hz and 50 Hz slope. This is the
> > best setting for a solid signal. Then i choosed the auto notch
> > function but limited the operation range from 0...780 Hz and moved the
> > filter so that the CW signal is still passing. These steps make the
> > readability better than choosing a 100 Hz wide CW filter without the
> > notch function. So the best (for optimising CW) would be to have two
> > (or in your case: several) limiting ranges, i my case: 0...780 Hz plus
> > 820 Hz...2000 Hz. I asked Wolf if this is possible to implement but
> > the easter WX was to good here, HI. And there are several other querys
> > on his table too, i am sure :-)
> >
> > Wolf? :-)
> >
> > Best 73, Stefan/DK7FC
>
>


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