Return-Path: Received: from mtain-di05.r1000.mx.aol.com (mtain-di05.r1000.mx.aol.com [172.29.64.9]) by air-md03.mail.aol.com (v129.4) with ESMTP id MAILINMD031-8b7c4cbb08d41ae; Sun, 17 Oct 2010 10:31:48 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-di05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1CBBA38000107; Sun, 17 Oct 2010 10:31:47 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1P7UFG-0007yl-31 for rs_out_1@blacksheep.org; Sun, 17 Oct 2010 15:29:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1P7UFF-0007yc-Mo for rsgb_lf_group@blacksheep.org; Sun, 17 Oct 2010 15:29:53 +0100 Received: from smtp817.mail.ird.yahoo.com ([77.238.189.17]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1P7UFD-00020l-2C for rsgb_lf_group@blacksheep.org; Sun, 17 Oct 2010 15:29:53 +0100 Received: (qmail 71462 invoked from network); 17 Oct 2010 14:29:45 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=l1jbmOLohKN9HJGOLwNOPyYSE9eFb9UOWCUZLPdSxvBy2GPBeVyu/NMMq391jhcZc9AvfsQSWGWituVl96JTPWmbgRX+0umR8g56Zehos6NLLYvJBCbkOmC2NeVEpQGXEny+/u+IZFQfiujzD+3npbU2g9cRpypG5KXa+6rpdCw= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btopenworld.com; s=s1024; t=1287325785; bh=FnCKUiyxNXTIWSn4reTmcN6ikkClPLqPbKp4xMp3T34=; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=v2dJF+jn1R0jX57gv8pxEPCgzYsP2m/6ST6si6AuUwukW2Ox52/FZ5pRQzKgIpJy5RMYTOc6mMyDgsfPzn/66361txnQsg9get7Q06ExL94Wm5e/AvmJnaX+Uig34zuJu0Z5h74y3fhJoPtmScR4wkPYUaBSo7m2QnULnzhDEc0= Received: from JimPC (james.moritz@86.174.31.94 with login) by smtp817.mail.ird.yahoo.com with SMTP; 17 Oct 2010 14:29:45 +0000 GMT X-Yahoo-SMTP: Cxhli3eswBD1ozmtAojhjrja86kWx0Qm9tycD5QR1DKWrOLgjJcXkw-- X-YMail-OSG: LXhLUJIVM1lJBU_B7D0.g0poFS2JsMYsRKGNGc3tfTnYF7D 2EJ1CBHDnwsghLdXIuF8nOYMMfcR6j56NdYeOMa4LRHuJD.GY5_IY0Xbn_D6 w9d4hi6xnhrNdsDYUdeRQP.EpPaWVMIkntDYoZfCNM4GY6OKGDFx313Tcjt7 S.YyESJAnhNDU3_STLbFruhWL1IwLMvZHw7k_Ep1lZFWYbX865M7Vbce.bVq jCLEVbR9YZW8in8Iy5yXPoa28xObnzpqgJg2sXtkmvEilEjpgjG1LkiVs7uu D0hxt X-Yahoo-Newman-Property: ymail-3 Message-ID: From: "James Moritz" To: References: <8CD38567F4B0C6A-1C1C-116D@webmail-m021.sysops.aol.com> <2C4BE56C4BAB4EB984EBC865A2BBC338@Black> <4CBAE155.6030500@freenet.de> <84762FB94EEB4248987AE5E44EBD03A8@JimPC> <001101cb6e02$e26c7620$0401a8c0@xphd97xgq27nyf> In-Reply-To: <001101cb6e02$e26c7620$0401a8c0@xphd97xgq27nyf> Date: Sun, 17 Oct 2010 15:29:46 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18263 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,UNPARSEABLE_RELAY=0.001 Subject: Re: VLF: Re: Detections of 5 microwatt transmission Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d283.2 ; domain : btopenworld.com DKIM : pass x-aol-sid: 3039ac1d40094cbb08d22e74 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Dear Mal, LF Group, If you look at it more generally, this experiment shows that anybody with access to an ordinary PC and a few simple homebrew bits and pieces can measure signal frequencies within a few parts per billion, easily monitor drift of high-stability oscillators, etc., which I think is quite interesting to radio amateurs and others. I'm not expecting to have a VLF QSO any time soon, but there are plenty of other interesting things to do along the way. Cheers, Jim Moritz 73 de M0BMU ----- Original Message ----- From: "mal hamilton" To: Sent: Sunday, October 17, 2010 2:54 PM Subject: Re: VLF: Re: Detections of 5 microwatt transmission > Jim > This looks like a lot of trouble for no real practical purpose, other than > maybe get a glimpse of a carrier an odd time on 8970 Kcs > The possibility of a real time QSO on this band over any distance looks > remote. In all it seems a lot of effort for little reward. > GL > de Mal/G3KEV