Return-Path: Received: (qmail 67495 invoked from network); 1 Mar 2005 19:16:16 -0000 Received: from unknown (HELO ptb-spamcore01.plus.net) (192.168.71.1) by ptb-mailstore03.plus.net with SMTP; 1 Mar 2005 19:16:16 -0000 Received: from mailnull by ptb-spamcore01.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1D6CsU-000NLP-8B for dave@picks.force9.co.uk; Tue, 01 Mar 2005 19:17:56 +0000 Received: from [192.168.67.3] (helo=ptb-mxcore03.plus.net) by ptb-spamcore01.plus.net with esmtp (Exim 4.32; FreeBSD) id 1D6CsT-000NKz-7f for dave@picks.force9.co.uk; Tue, 01 Mar 2005 19:17:53 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1D6Csb-0005Ny-Uh for dave@picks.force9.co.uk; Tue, 01 Mar 2005 19:18:02 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1D6Cpb-0002TV-OV for rs_out_1@blacksheep.org; Tue, 01 Mar 2005 19:14:55 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1D6Cpa-0002ST-6J for rsgb_lf_group@blacksheep.org; Tue, 01 Mar 2005 19:14:54 +0000 Received: from smtp.bulldogdsl.com.bulldogdsl.com ([83.146.21.7] helo=smtp.bulldogdsl.com) by relay.thorcom.net with esmtp (Exim 4.43) id 1D6CpY-0001dG-Oc for rsgb_lf_group@blacksheep.org; Tue, 01 Mar 2005 19:14:54 +0000 Received: by smtp.bulldogdsl.com (Postfix, from userid 1002) id 1F9F61F2F40; Tue, 1 Mar 2005 19:14:52 +0000 (GMT) Received: from [192.168.1.33] (host-84-9-70-235.bulldogdsl.com [84.9.70.235]) by smtp.bulldogdsl.com (Postfix) with ESMTP id 232931F6E0C for ; Tue, 1 Mar 2005 17:46:38 +0000 (GMT) Received: from 127.0.0.1 (AVG SMTP 7.0.300 [266.5.1]); Tue, 01 Mar 2005 17:46:37 +0000 Message-ID: <000601c51e86$9e2ce340$2101a8c0@AUG2004> From: "Walter Blanchard" To: rsgb_lf_group@blacksheep.org Date: Tue, 1 Mar 2005 17:46:33 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 X-SPF-Result: relay.thorcom.net: 83.146.21.7 is neither permitted nor denied by domain of pncl.co.uk X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=failed,HTML_50_60=0.095,HTML_MESSAGE=0.001 Subject: LF: Lat/Lon converters Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit

The definitive lat/lon to NGR and back converter for the UK is on this site : www.gps.gov.uk It's free and on-line. You can also get a stand-alone converter file free but you need to log on as a user with Ordnance Survey first. It doesn't include Maidenhead and you need to know all about spheroids and datums. The quick-and-dirty Maidenhead converter I use is called BD.exe but unfortunately there's now a virus of that name and if you have a virus checker running it will be rejected otherwise I'd be happy to send it.

Walter G3JKV.