Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dh05.r1000.mx.aol.com (Internet Inbound) with ESMTP id C7F6838000199; Mon, 18 Mar 2013 13:26:00 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UHdTK-0005Hx-5z for rs_out_1@blacksheep.org; Mon, 18 Mar 2013 17:03:42 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UHdTJ-0005Ho-QZ for rsgb_lf_group@blacksheep.org; Mon, 18 Mar 2013 17:03:41 +0000 Received: from smtp-vbr11.xs4all.nl ([194.109.24.31]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UHdTI-0002Sz-9k for rsgb_lf_group@blacksheep.org; Mon, 18 Mar 2013 17:03:40 +0000 Received: from pc-roelof (ndb.demon.nl [82.161.81.65]) by smtp-vbr11.xs4all.nl (8.13.8/8.13.8) with ESMTP id r2IH3EMj044312 for ; Mon, 18 Mar 2013 18:03:19 +0100 (CET) (envelope-from roelof@ndb.demon.nl) To: rsgb_lf_group@blacksheep.org References: <3309.377f234c.3e76743b@aol.com> <51472B6F.2090509@iup.uni-heidelberg.de> Date: Mon, 18 Mar 2013 18:03:13 +0100 MIME-Version: 1.0 From: "Roelof Bakker" Message-ID: In-Reply-To: <51472B6F.2090509@iup.uni-heidelberg.de> User-Agent: Opera Mail/12.14 (Win32) X-Virus-Scanned: by XS4ALL Virus Scanner X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello Stefan, The bandwidth of WSPR is 6 Hz and this will decrease the received noise with 26.2 dB compared to a bandwidth of 2500 Hz. A SNR of -33 dB suggests a bandwidth of 1.25 Hz when the reference bandwidth is 2500 Hz. However the bandwidth of WSPR is stated as 6 Hz. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [194.109.24.31 listed in list.dnswl.org] X-Scan-Signature: aee9e5eeb35c86f052d502ac97832558 Content-Type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes Subject: Re: LF: WSPR -2 SNR 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: 3039ac1d411951474e2674a5 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Hello Stefan, The bandwidth of WSPR is 6 Hz and this will decrease the received noise with 26.2 dB compared to a bandwidth of 2500 Hz. A SNR of -33 dB suggests a bandwidth of 1.25 Hz when the reference bandwidth is 2500 Hz. However the bandwidth of WSPR is stated as 6 Hz. So something does not fit, however I can't figure out what this might be! 73, Roelof, pa0rdt