Return-Path: Received: (qmail 5627 invoked from network); 10 Jul 2001 17:37:00 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 10 Jul 2001 17:37:00 -0000 Received: (qmail 4119 invoked from network); 10 Jul 2001 17:35:42 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 10 Jul 2001 17:35:42 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15K1KS-0002h2-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 10 Jul 2001 18:29:44 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from ins20.netins.net ([167.142.225.20] helo=smtp-out.netins.net) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15K1KM-0002fH-00 for rsgb_lf_group@blacksheep.org; Tue, 10 Jul 2001 18:29:38 +0100 Received: from netins.net (desm-32-118.dsl.netins.net [167.142.32.118]) by smtp-out.netins.net (8.9.3/8.9.3) with ESMTP id MAA05493; Tue, 10 Jul 2001 12:28:56 -0500 (CDT) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3B4B3B55.54319EF2@netins.net> Date: Tue, 10 Jul 2001 12:28:53 -0500 From: "Dr. Tom Gruis" Organization: =?iso-8859-1?Q?www.gruis.org_&_K=D8HTF?= X-Sender: "Dr. Tom Gruis" <@smtp.netins.net> (Unverified) X-Mailer: Mozilla 4.76 [en]C-gatewaynet (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: Cave Radio - Thank You too! References: <3B4A2079.F677BBE4@netins.net> <003601c10961$5f19f960$16ae7ad5@default> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Thank you too, Sir! It will be passed along. Doc. Fred Rattray wrote: > > Check out my web site at http://www.caving.btinternet.co.uk > There is a little about cave radio beacons for radio location and depth > finding. > Also there is a brief explanation of a positioning system I have called SNAP > which is short for > Speliogical Navigation And Positioning, and a brief report on 73Khz SSTV > from underground. > > Regards > Fred Rattray > G4SPR > > ----- Original Message ----- > From: "Dr. Tom Gruis" > To: > Sent: 09 July 2001 21:22 > Subject: LF: Cave Radio > > > Helllo from Iowa, USA. > > > > I seem to recall an earlier thread about Cave Radio on this reflector. > > > > I made note of this URL: http://www.bcra.org.uk/sig/creg.html > > > > Are there any more out there? > > > > 73, > > > > Doc. > >