Return-Path: Received: from mtain-db01.r1000.mx.aol.com (mtain-db01.r1000.mx.aol.com [172.29.64.85]) by air-di07.mail.aol.com (v128.1) with ESMTP id MAILINDI071-eace4bc5d51b159; Wed, 14 Apr 2010 10:45:47 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-db01.r1000.mx.aol.com (Internet Inbound) with ESMTP id BBECD3800009F; Wed, 14 Apr 2010 10:45:45 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O23p0-0002Gq-H3 for rs_out_1@blacksheep.org; Wed, 14 Apr 2010 15:44:06 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O23p0-0002Gh-69 for rsgb_lf_group@blacksheep.org; Wed, 14 Apr 2010 15:44:06 +0100 Received: from mtaout02-winn.ispmail.ntl.com ([81.103.221.48]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O23oy-0008B0-1K for rsgb_lf_group@blacksheep.org; Wed, 14 Apr 2010 15:44:06 +0100 Received: from aamtaout04-winn.ispmail.ntl.com ([81.103.221.35]) by mtaout02-winn.ispmail.ntl.com (InterMail vM.7.08.04.00 201-2186-134-20080326) with ESMTP id <20100414144356.FRPH10460.mtaout02-winn.ispmail.ntl.com@aamtaout04-winn.ispmail.ntl.com> for ; Wed, 14 Apr 2010 15:43:56 +0100 Received: from [192.168.2.34] (really [82.22.244.28]) by aamtaout04-winn.ispmail.ntl.com (InterMail vG.2.02.00.01 201-2161-120-102-20060912) with ESMTP id <20100414144355.LZLI19999.aamtaout04-winn.ispmail.ntl.com@[192.168.2.34]> for ; Wed, 14 Apr 2010 15:43:55 +0100 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Wed, 14 Apr 2010 15:43:53 +0100 MIME-Version: 1.0 Message-ID: <4BC5E2B9.25445.E71FF8@mike.dennison.ntlworld.com> X-mailer: Pegasus Mail for Windows (4.41) Content-description: Mail message body X-Cloudmark-Analysis: v=1.1 cv=W3tOLUehizD4qj6VhtReFuw5MKb8d+XqjIxlDsIazEA= c=1 sm=0 a=9YlaCzn6_68A:10 a=kj9zAlcOel0A:10 a=1wHHG5thAAAA:8 a=bc5uJs4ov8Hpfb89y5cA:9 a=Bl7_DIPx3feWZpgnHvZnAtyvQ4UA:4 a=CjuIK1q_8ugA:10 a=a0suBqK8Hv8A:10 a=HpAAvcLHHh0Zw7uRqdWCyQ==:117 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: VLF book 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: 3039ac1d40554bc5d5195f05 X-AOL-IP: 193.82.116.20 I have not seen a reference to it here, but 9kHz enthusiasts might like to read the fascinating RSGB book 'Radio Nature' by Renato Romero, IK1QFK. This covers the frequencies below 30kHz. Several 136kHz operators were involved in translating and editing this book which was originally published in Italian. See http://www.rsgbshop.org/acatalog/Online_Catalogue_Technical_6.html for more info. Mike, G3XDV ==========