Return-Path: Received: from mtain-mj05.r1000.mx.aol.com (mtain-mj05.r1000.mail.aol.com [172.21.164.89]) by air-de05.mail.aol.com (v129.10) with ESMTP id MAILINDE051-5eb24dc659fc3c7; Sun, 08 May 2011 04:53:16 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mj05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7400B38000085; Sun, 8 May 2011 04:53:15 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QIzis-0001Ws-KP for rs_out_1@blacksheep.org; Sun, 08 May 2011 09:52:18 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QIzis-0001Wj-4Q for rsgb_lf_group@blacksheep.org; Sun, 08 May 2011 09:52:18 +0100 Received: from out1.ip09ir2.opaltelecom.net ([62.24.128.245]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QIziq-0006LS-Pd for rsgb_lf_group@blacksheep.org; Sun, 08 May 2011 09:52:18 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjkCAM9Yxk1cHY9//2dsb2JhbACXakCNcneIcbtbhgwElCqKGQ X-IronPort-AV: E=Sophos;i="4.64,334,1301871600"; d="scan'208";a="476885459" Received: from unknown (HELO xphd97xgq27nyf) ([92.29.143.127]) by out1.ip09ir2.opaltelecom.net with SMTP; 08 May 2011 09:52:09 +0100 Message-ID: <002301cc0d5d$36d0b970$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <4DC572F2.9050003@telus.net> <4DC5AB0F.4090507@iup.uni-heidelberg.de> <4DC65629.8010506@freenet.de> Date: Sun, 8 May 2011 09:52:08 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Spectrum Lab Filtering... Content-Type: text/plain; charset="iso-8859-1" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039400c89aa4dc659fa74ce X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Content-Transfer-Encoding: quoted-printable Wolf Filters are useful but a good pair of EARS are better for CW. G3KEV ----- Original Message ----- From: "wolf_dl4yhf" To: 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 alread= y > 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 > > 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 th= e > > 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 bu= t > > the easter WX was to good here, HI. And there are several other qu= erys > > on his table too, i am sure :-) > > > > Wolf? :-) > > > > Best 73, Stefan/DK7FC > >