Return-Path: Received: (qmail 7908 invoked from network); 28 Mar 2000 09:57:16 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by redlabel.core.plus.net.uk with SMTP; 28 Mar 2000 09:57:16 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12Zsck-00007y-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 28 Mar 2000 10:49:22 +0100 Received: from mailhost.netscapeonline.co.uk ([194.200.20.13]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12Zscj-00007m-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Mar 2000 10:49:21 +0100 Received: from as24-s16-146-48.cwci.net ([195.44.146.48] helo=netscapeonline.co.uk) by mailhost.netscapeonline.co.uk with esmtp (Exim 3.02 #1) id 12ZscI-0005KP-00 for rsgb_lf_group@blacksheep.org; Tue, 28 Mar 2000 09:48:55 +0000 X-Priority: 3 X-MSMail-Priority: Normal Message-ID: <38DF97B7.DBF2C770@netscapeonline.co.uk> Date: Mon, 27 Mar 2000 17:17:43 +0000 From: "g3kev" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Organization: Netscape Online member X-Mailer: Mozilla 4.6 [en-gb]C-CCK-MCD NetscapeOnline.co.uk (Win95; I) X-Accept-Language: en-GB,en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Decca Tx References: <4.2.0.58.20000327155549.0099fda0@mail.pncl.co.uk> 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: Walter Blanchard wrote: > The UK Decca Navigator transmitters shut down for public use this weekend. > Most sites have already been sold for other purposes but a few will remain in > working order for a few months. > I might be able to get permission for an interested group to operate using > one of these sites for a limited period during May/June/July. > The likeliest one has a 300 ft mast; an extensive ground plane and an ATU > coil that could probably be tuned to 136 kHz. Radiation efficiency at 127 > kHz is > a measured 12% so 8 watts in would provide our legal erp limit. > It could also be tuned to go on 72 kHz - it already transmits at 71 kHz. > Only a group willing to take on legal responsibility for damage; > pay the electricity bill, etc would be authorised. > There would be a fair bit of effort needed to retune everything - no > engineering support is offered. > The excuse might be it's a commemorative station organised to mark the > passing of the Decca Navigator system. Special callsign perhaps. > Anyone interested? Serious applications only PLEASE. > Walter G3JKV. > Have a go Walter and I hope you can get a team together. Besides good RF > engineers to retune and manipulate the transmitters you will need some ACE > operators, they seem scarce on LF. De G3KEV