X-GM-THRID: 1223459967302721086 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.70.56.11 with SMTP id e11cs638136wxa; Wed, 27 Dec 2006 14:09:06 -0800 (PST) Received: by 10.66.243.2 with SMTP id q2mr20636758ugh.1167257345662; Wed, 27 Dec 2006 14:09:05 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id 27si23594639ugp.2006.12.27.14.09.02; Wed, 27 Dec 2006 14:09:05 -0800 (PST) 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) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1GzgsA-0006w7-JN for rs_out_1@blacksheep.org; Wed, 27 Dec 2006 22:03:42 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1GzgsA-0006vy-7l for rsgb_lf_group@blacksheep.org; Wed, 27 Dec 2006 22:03:42 +0000 Received: from smarthost1.mail.uk.easynet.net ([212.135.6.11]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Gzgs6-0001Ch-EN for rsgb_lf_group@blacksheep.org; Wed, 27 Dec 2006 22:03:42 +0000 Received: from bb-87-82-16-170.ukonline.co.uk ([87.82.16.170] helo=[192.168.0.2]) by smarthost1.mail.uk.easynet.net with esmtp (Exim 4.10) id 1Gzgs5-000FTs-00 for rsgb_lf_group@blacksheep.org; Wed, 27 Dec 2006 22:03:37 +0000 Message-ID: <4592EEBD.1050703@ukonline.co.uk> Date: Wed, 27 Dec 2006 22:07:57 +0000 From: Peter Dodd User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <000901c721c3$1ce9eb60$62e8fc3e@g3kev> <458BACE1.18178.2E59C5@localhost> In-Reply-To: <458BACE1.18178.2E59C5@localhost> X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: 136 CW 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 Status: O X-Status: X-Keywords: X-UID: 3215 Mike Dennison wrote: > I have also made several CW calls with little success. However, when > I was called by F6BWO I could not read him because of the chatter > from Rugby Loran which is 100km away. In the past, I have had several > successful CW QSOs with F6BWO. By contrast, he is a very good signal > (dogbones) on QRSS where Loran does not affect readability unless a > signal coincides with a Loran line. > In the early days of 136kHz, when most of the contacts were on CW, copy could be hard work down here on the South Coast. The distance from here to the Loran station at Lessay is about 160km (sea path). When the TS-850 was tuned to 136kHz and the IF passband to 2.7kHz the S-meter read S8 due to the Loran sidebands. The S meter level dropped sharply as IF filters were switched in but problems were caused by the interaction of the filter to the strong pulse signals. In some cases improved readability was obtained with a wide IF bandwidth. Modern receivers with digital IF selectivity might be better in this regard. I gave up listening on 136kHz CW because of tinnitus. Regards Peter, G3LDO