X-GM-THRID: 1234797103803011451 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.35.22.8 with SMTP id z8cs347690pyi; Thu, 26 Apr 2007 06:31:24 -0700 (PDT) Received: by 10.67.30.6 with SMTP id h6mr2200407ugj.1177594283811; Thu, 26 Apr 2007 06:31:23 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id m1si3022768ugc.2007.04.26.06.31.21; Thu, 26 Apr 2007 06:31:23 -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) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Hh40g-0006h1-HJ for rs_out_1@blacksheep.org; Thu, 26 Apr 2007 14:27:46 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Hh40f-0006gs-S9 for rsgb_lf_group@blacksheep.org; Thu, 26 Apr 2007 14:27:45 +0100 Received: from bay0-omc1-s15.bay0.hotmail.com ([65.54.246.87]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Hh40e-0000Io-Dc for rsgb_lf_group@blacksheep.org; Thu, 26 Apr 2007 14:27:45 +0100 Received: from hotmail.com ([207.46.11.246]) by bay0-omc1-s15.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Thu, 26 Apr 2007 06:27:37 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 26 Apr 2007 06:27:37 -0700 Message-ID: Received: from 207.46.11.254 by by124fd.bay124.hotmail.msn.com with HTTP; Thu, 26 Apr 2007 13:27:36 GMT X-Originating-IP: [203.208.238.175] X-Originating-Email: [hellozerohellozero@hotmail.com] X-Sender: hellozerohellozero@hotmail.com In-Reply-To: <000801c7873b$7d3fc560$0300a8c0@lark> From: "Laurence KL1X" To: rsgb_lf_group@blacksheep.org Bcc: Date: Thu, 26 Apr 2007 05:27:36 -0800 Mime-Version: 1.0 X-OriginalArrivalTime: 26 Apr 2007 13:27:37.0922 (UTC) FILETIME=[A85D5A20:01C78806] X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,MSGID_FROM_MTA_HEADER=0 Subject: LF: LF/9v1 Content-Type: text/plain; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=MSGID_FROM_MTA_HEADER 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: 4116 What ho - we are down in Singapore apartment hunting (no way can we afford a house here by the looks of it....) Ive thrown out the LF probe out of the hotel balcony - into the SDRIQ, and its a cut of a thousand lightning strokes...can barely hear Loran this evening. Its been poor weather here for the past few days so little chance of dx. Any one done any short studies of lightning emfs' at different freqs? - Ive read a few saying most/some of the power is at VLF, stroke source/target, length and angle dependant, but Im definately seeing a cut at around >400Khz - below this the noise rises to be pretty flat but above 400Khz its amplitude is generally many dbs/octave down - this just due to propagational modes? Doesnt seem to matter day or night too much - perhaps my probe has some issues, but I see the same on most antennae.... Cheers Laurence Singapore, rainy, stormy.... _________________________________________________________________ Get a FREE Web site, company branded e-mail and more from Microsoft Office Live! http://clk.atdmt.com/MRT/go/mcrssaub0050001411mrt/direct/01/