X-GM-THRID: 1246935814503986841 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.86.2.20 with SMTP id 20cs32881fgb; Fri, 7 Sep 2007 06:11:00 -0700 (PDT) Received: by 10.66.225.17 with SMTP id x17mr1322916ugg.1189170660618; Fri, 07 Sep 2007 06:11:00 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id e33si3737499ugd.2007.09.07.06.10.52; Fri, 07 Sep 2007 06:11:00 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=193.82.116.20; Authentication-Results: mx.google.com; spf=neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ITdXH-0000BR-BL for rs_out_1@blacksheep.org; Fri, 07 Sep 2007 14:06:11 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ITdXH-0000BH-0s for rsgb_lf_group@blacksheep.org; Fri, 07 Sep 2007 14:06:11 +0100 Received: from mtaout01-winn.ispmail.ntl.com ([81.103.221.47]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1ITdXD-0003p1-8V for rsgb_lf_group@blacksheep.org; Fri, 07 Sep 2007 14:06:10 +0100 Received: from aamtaout01-winn.ispmail.ntl.com ([81.103.221.35]) by mtaout01-winn.ispmail.ntl.com with ESMTP id <20070907130559.LTFU1783.mtaout01-winn.ispmail.ntl.com@aamtaout01-winn.ispmail.ntl.com> for ; Fri, 7 Sep 2007 14:05:59 +0100 Received: from mikedennison ([86.3.252.185]) by aamtaout01-winn.ispmail.ntl.com with ESMTP id <20070907130559.HQCS219.aamtaout01-winn.ispmail.ntl.com@mikedennison> for ; Fri, 7 Sep 2007 14:05:59 +0100 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Fri, 07 Sep 2007 14:05:46 +0100 MIME-Version: 1.0 Message-ID: <46E15ABA.6439.17F59A3@localhost> X-mailer: Pegasus Mail for Windows (4.21c) Content-description: Mail message body X-Karma: 0: X-Spam-Score: 1.2 (+) X-Spam-Report: autolearn=disabled,SUBJ_ALL_CAPS=1.166 Subject: LF: [500 - QSB 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=0.6 required=5.0 tests=SUBJ_ALL_CAPS 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 Status: O X-Status: X-Keywords: X-UID: 10 Does anyone have a spectrogram screen shot of 500kHz signals showing the QSB period and approximate depth? This could be CW or QRSS, but I am especially interested in seeing how QRSS is affected by fading. An estimate of the path lengths involved would also be helpful. This is for the new edition of LF Today. Thanks in advance. Mike, G3XDV ==========