Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1781738000091; Fri, 16 Mar 2012 08:52:01 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1S8Wcc-0006JW-NH for rs_out_1@blacksheep.org; Fri, 16 Mar 2012 12:51:06 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1S8Wcc-0006JN-Ao for rsgb_lf_group@blacksheep.org; Fri, 16 Mar 2012 12:51:06 +0000 Received: from smtpout1.wanadoo.co.uk ([80.12.242.29] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1S8WcZ-0000Kh-PU for rsgb_lf_group@blacksheep.org; Fri, 16 Mar 2012 12:51:06 +0000 Received: from AGB ([2.26.46.28]) by mwinf5d01 with ME id mCqu1i00j0cUoii03Cqvgf; Fri, 16 Mar 2012 13:50:57 +0100 Message-ID: <243C7F28F0254C92AA2DF025C20C0C64@AGB> From: "Graham" To: References: <4F6252C6.2030408@iup.uni-heidelberg.de> <4F6334EA.2070903@freenet.de> In-Reply-To: <4F6334EA.2070903@freenet.de> Date: Fri, 16 Mar 2012 12:50:54 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: avast! (VPS 120316-0, 16/03/2012), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: Google maps update - Margin Of Error? Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=response Content-Transfer-Encoding: 8bit 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-SCORE: 0:2:467430144:93952408 x-aol-sid: 3039ac1d404a4f6337706e02 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Yes that's a very old map making trick ... some small feature that's fake or slight change to a real one , so can prove copyright. G. -------------------------------------------------- From: "wolf_dl4yhf" Sent: Friday, March 16, 2012 12:41 PM To: Subject: Re: LF: Google maps update - Margin Of Error? > Don't trust google. There are rumors that their maps are deliberately > skewed slightly, which allows them to prove if any map is based on their > online map database. > > If you can, let your GPS receiver run for a few hours (or, better, days), > and make an average to get a *precise* location. You can do that > graphically with a GPS track plotter. This way you can eliminate some of > the GPS errors, at least since SA ("selective availability") has been > turned off years ago. > > Cheers, > Wolf . > > Am 16.03.2012 11:55, schrieb Clive Lorton: >> On 15 Mar 2012, at 20:36, Stefan Schäfer wrote: >> >>> now the locator has slightly changed. The actual antenna is now in >>> JN49IK00WE. Damn, now all the distances must be re-calculated ;-) >> >> >> Morning LF from a lurker…. >> >> I just checked my GPS against a well defined mark on my drive in >> Oxfordshire and it was spot on. But when I visited my friends house in >> Southern Brittany last year there was a 22 (ish) meter error between >> google and my GPS. Which is right. Which should we use. >> >> 73 to you all >> Clive g8poc >> >> >> >> >> >> >> > >