Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 4F63D3800009B; Mon, 18 Mar 2013 17:39:27 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UHhK2-0007gg-8E for rs_out_1@blacksheep.org; Mon, 18 Mar 2013 21:10:22 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UHhK1-0007gT-PB for rsgb_lf_group@blacksheep.org; Mon, 18 Mar 2013 21:10:21 +0000 Received: from mout.gmx.net ([212.227.17.20]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UHhK0-0003U1-7i for rsgb_lf_group@blacksheep.org; Mon, 18 Mar 2013 21:10:20 +0000 Received: from mailout-de.gmx.net ([10.1.76.4]) by mrigmx.server.lan (mrigmx001) with ESMTP (Nemesis) id 0Lzml3-1UleUe29Br-0154sM for =?utf-8?q?;?= Mon, 18 Mar 2013 22:09:59 +0100 Received: (qmail invoked by alias); 18 Mar 2013 21:09:58 -0000 Received: from p4FED9E0C.dip.t-dialin.net (EHLO Clemens0811) [79.237.158.12] by mail.gmx.net (mp004) with SMTP; 18 Mar 2013 22:09:58 +0100 X-Authenticated: #17214767 X-Provags-ID: V01U2FsdGVkX1+TUV96PW+TbUg2MA3LwIBY3TLLIibop5CJc5qQPr yWbk9osnIMf51u From: "Clemens Paul" To: References: <3309.377f234c.3e76743b@aol.com> <005101ce23fa$952aa840$6d01a8c0@DELL4> In-Reply-To: <005101ce23fa$952aa840$6d01a8c0@DELL4> Date: Mon, 18 Mar 2013 22:09:57 +0100 Message-ID: <173B435C07644894A07F177CB5DC86D5@Clemens0811> MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7601.17609 thread-index: Ac4j+qqFiuSJR9oXTlq1m2QOzYX/VAAIUxow X-Y-GMX-Trusted: 0 X-Spam-Score: -2.5 (--) 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: >It has been shown in the past that a receiver bandwidth >significatly less than 2500 Hz artificially inflates the >reported WSPR s/n. Yes,that was also my own experience and below is Joe*s correspondent comment from a private email: [...] Content analysis details: (-2.5 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.227.17.20 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (cpaul[at]gmx.net) -0.0 SPF_PASS SPF: sender matches SPF record -2.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: e09cca6d8e44a91eadbdfb3e1b8aec09 Subject: LF: RE: Re: WSPR -2 SNR Content-Type: text/plain; charset="US-ASCII" 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: 3039ac1d600b5147898e029e X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none >It has been shown in the past that a receiver bandwidth >significatly less than 2500 Hz artificially inflates the >reported WSPR s/n. Yes,that was also my own experience and below is Joe*s correspondent comment from a private email: "The calculation of S/N in WSPR assumes that the "baseline" noise spectrum is approximately flat over 2 kHz or so. If you use a much narrower filter the program's estimate of background noise level may be incorrect, and this will affect the computer values of S/N. -- 73, Joe, K1JT " 73 Clemens DL4RAJ >-----Original Message----- >From: owner-rsgb_lf_group@blacksheep.org >[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of >jrusgrove@comcast.net >Sent: Monday, March 18, 2013 6:04 PM >To: rsgb_lf_group@blacksheep.org >Subject: LF: Re: WSPR -2 SNR