Message-ID: <4DC65629.8010506@freenet.de>
Date: Sun, 08 May 2011 10:36:57 +0200
From: wolf_dl4yhf <dl4yhf@freenet.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <4DC572F2.9050003@telus.net> <4DC5AB0F.4090507@iup.uni-heidelberg.de>
In-Reply-To: <4DC5AB0F.4090507@iup.uni-heidelberg.de>
Subject: Re: LF: Spectrum Lab Filtering...
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Content-Transfer-Encoding: quoted-printable


Hi Stefan,

Two or more frequency ranges for the auto-notch filter are already on=20
the to-do list.
Main problem will be where to put the graphic controls in the already=20
too crowded user interface ;-)

73,
    Wolf .

Am 07.05.2011 22:26, schrieb Stefan Sch=E4fer:
> Hi Scott,
>
> I think there is not such a function so far. There is just a range=20
> 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=20
> 800 Hz. The filter has a BW of 200 Hz and 50 Hz slope. This is the=20
> best setting for a solid signal. Then i choosed the auto notch=20
> function but limited the operation range from 0...780 Hz and moved the=
=20
> filter so that the CW signal is still passing. These steps make the=20
> readability better than choosing a 100 Hz wide CW filter without the=20
> notch function. So the best (for optimising CW) would be to have two=20
> (or in your case: several) limiting ranges, i my case: 0...780 Hz plus=
=20
> 820 Hz...2000 Hz. I asked Wolf if this is possible to implement but=20
> the easter WX was to good here, HI. And there are several other querys=
=20
> on his table too, i am sure :-)
>
> Wolf? :-)
>
> Best 73, Stefan/DK7FC