Return-Path: Received: (qmail 57794 invoked from network); 14 Jan 2004 17:05:07 -0000 Received: from unknown (HELO ptb-mxscan01.plus.net) (212.159.14.235) by ptb-mailstore01.plus.net with SMTP; 14 Jan 2004 17:05:07 -0000 Received: (qmail 54999 invoked from network); 14 Jan 2004 17:05:06 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore01.plus.net (212.159.14.215) by ptb-mxscan01.plus.net with SMTP; 14 Jan 2004 17:05:05 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim) id 1AgoS0-000EBx-V9 for dave@picks.force9.co.uk; Wed, 14 Jan 2004 17:05:05 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AgoRg-00084p-Gi for rs_out@blacksheep.org; Wed, 14 Jan 2004 17:04:44 +0000 Received: from [194.247.47.231] (helo=mailout.zetnet.co.uk) by post.thorcom.com with esmtp (Exim 4.14) id 1AgoRg-00084g-3R for rsgb_lf_group@blacksheep.org; Wed, 14 Jan 2004 17:04:44 +0000 Received: from irwell.zetnet.co.uk ([194.247.47.48] helo=zetnet.co.uk) by mailout.zetnet.co.uk with esmtp (Exim 3.36 #1 (Debian)) id 1AgoRf-0003xw-00 for ; Wed, 14 Jan 2004 17:04:43 +0000 X-Fake-Domain: johnb5a82ea1a4 Received: from johnb5a82ea1a4 (bts-0114.dialup.zetnet.co.uk [194.247.48.114]) by zetnet.co.uk (8.12.3/8.12.3/Debian-6.6.zet1) with ESMTP id i0EH4ec1004588 for ; Wed, 14 Jan 2004 17:04:42 GMT X-Bad-Message-ID: no DNS (johnb5a82ea1a4) Message-ID: <008d01c3dac0$8d7a62d0$f031f7c2@johnb5a82ea1a4> From: "John Rabson" To: rsgb_lf_group@blacksheep.org References: <000b01c3da88$611cf140$9f96883e@d6y6c7> <5.1.0.14.0.20040114153159.0359fdd8@u0019445.kuleuven.be> Date: Wed, 14 Jan 2004 16:43:00 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: Re: LF: lf andnoise and offshore. Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 I seem to recall from an old version of Reference Data for Radio Engineers that transatlantic liners on 143 kHz could achieve a radiation efficiency of nearly 2% with their flattops slung between the funnels. 73 John Rabson G3PAI