Return-Path: Received: from mtain-mh03.r1000.mx.aol.com (mtain-mh03.r1000.mx.aol.com [172.29.96.215]) by air-dd02.mail.aol.com (v129.10) with ESMTP id MAILINDD023-86584dacc4e7113; Mon, 18 Apr 2011 19:10:32 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 52F17380000AD; Mon, 18 Apr 2011 19:10:29 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QBxZL-0008Mu-4A for rs_out_1@blacksheep.org; Tue, 19 Apr 2011 00:09:23 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QBxZK-0008Ml-JZ for rsgb_lf_group@blacksheep.org; Tue, 19 Apr 2011 00:09:22 +0100 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QBxZJ-0006vR-HP for rsgb_lf_group@blacksheep.org; Tue, 19 Apr 2011 00:09:22 +0100 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p3IN9JOA008592 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 19 Apr 2011 01:09:20 +0200 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p3IN9JIO029830 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 19 Apr 2011 01:09:19 +0200 Received: from [129.206.205.198] (vpn205-198.rzuser.uni-heidelberg.de [129.206.205.198]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id p3IN9IrR022446 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 19 Apr 2011 01:09:19 +0200 Message-ID: <4DACC4A0.7060209@iup.uni-heidelberg.de> Date: Tue, 19 Apr 2011 01:09:20 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <43B66C409004426BB0659C4C5969EAFE@lindavideo>, <5AE67B935B3B4B1C96C82C4E19D5D2B5@lindavideo> <4DA70751.2447.284DEB73@jurgenb2.3sdesign.de> In-Reply-To: <4DA70751.2447.284DEB73@jurgenb2.3sdesign.de> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: SAQ Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: 3039ac1d60d74dacc4e508d9 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) LF, A bit late be any way i want to share my reception of SAQ. The RX is my VLF grabber antenna and SpecLab V2.76b18. The signal is converted to 700 Hz and filtered in a 200 Hz Filter with 100 Hz slope. The first time i played with the autonotch and denoiser filters. It may sound a bit strange and actually i like some band noise in the background but anyway it is an interesting thing, this denoiser. I tried this with CW signals of DF6NM on LF and got better results than using a even narrower filter. If you want to listen to the results: http://dl.dropbox.com/u/19882028/SAQ_14APR2011%40DK7FC.WAV 73, Stefan/DK7FC PS: Due to the presence of JXN and HWU it made no sense to pre-filter the band with a wide (about 4 kHz) filter and remove the sferics before passing the signal through the narrow filter...