Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 3FFC138000099; Sun, 23 Sep 2012 15:36:36 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TFrxf-00039A-TJ for rs_out_1@blacksheep.org; Sun, 23 Sep 2012 20:35:27 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TFrxe-000391-0S for rsgb_lf_group@blacksheep.org; Sun, 23 Sep 2012 20:35:26 +0100 Received: from mout2.freenet.de ([195.4.92.92]) by relay1.thorcom.net with esmtps (UNKNOWN:AES256-GCM-SHA384:256) (Exim 4.77) (envelope-from ) id 1TFrxc-0004nm-Ev for rsgb_lf_group@blacksheep.org; Sun, 23 Sep 2012 20:35:24 +0100 Received: from [195.4.92.142] (helo=mjail2.freenet.de) by mout2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.76 #1) id 1TFrxa-0003o1-UH; Sun, 23 Sep 2012 21:35:22 +0200 Received: from localhost ([::1]:54225 helo=mjail2.freenet.de) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.76 #1) id 1TFrxa-0002lp-Nx; Sun, 23 Sep 2012 21:35:22 +0200 Received: from [195.4.92.22] (port=45564 helo=12.mx.freenet.de) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.76 #1) id 1TFrv6-0002Bn-JI; Sun, 23 Sep 2012 21:32:48 +0200 Received: from blfd-4db13c8c.pool.mediaways.net ([77.177.60.140]:1731 helo=[192.168.178.22]) by 12.mx.freenet.de with esmtpsa (ID dl4yhf@freenet.de) (TLSv1:CAMELLIA256-SHA:256) (port 465) (Exim 4.76 #1) id 1TFrv6-0005Mj-Bp; Sun, 23 Sep 2012 21:32:48 +0200 Message-ID: <505F63DF.60102@freenet.de> Date: Sun, 23 Sep 2012 21:32:47 +0200 From: wolf_dl4yhf User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20120713 Thunderbird/14.0 MIME-Version: 1.0 To: RSGB LF Group at blacksheep , RSGB LF Group at Yahoo X-Spam-Score: -0.8 (/) 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: Dear group, Do others hear (or see) a continous carrier on 472.5 kHz as well ? I first thought it was 'local' but since it's only there in the nighttime, and even suffers from QSB like the 'wanted' signals it must be from a distant transmitter. Don't think it's an intermod product in the receiver, because the signal is audible with an SDR-IQ and a Perseus as well - not just with the old IC706 which I use at DF0WD for reception on MF. [...] Content analysis details: (-0.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.92 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.8 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 4ead635eadbaebfaa92cfec77deb715d Subject: LF: Weak 'nighttime' carrier on 472.5 kHz ? Content-Type: text/plain; charset=ISO-8859-15; 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: 3039ac1d600c505f64c40e76 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Dear group, Do others hear (or see) a continous carrier on 472.5 kHz as well ? I first thought it was 'local' but since it's only there in the nighttime, and even suffers from QSB like the 'wanted' signals it must be from a distant transmitter. Don't think it's an intermod product in the receiver, because the signal is audible with an SDR-IQ and a Perseus as well - not just with the old IC706 which I use at DF0WD for reception on MF. If this frequency is audible / visible in other parts of Europe as well, we may have to move the de-facto CW 'calling frequency' a bit... maybe by 50 Hz or so which makes it easy to tell an answering call from this carrier signal (which sometimes sounds like Morse but in a spectrogram one can see that it never disappears 'completely'). 73, Wolf DL4YHF / DF0WD JO42FD .