Return-Path: Received: (qmail 17106 invoked from network); 17 Sep 1999 06:43:59 +0100 Received: from magnet.plus.net.uk (HELO magnet.force9.net) (195.166.128.26) by guiness.force9.net with SMTP; 17 Sep 1999 06:43:59 +0100 Received: (qmail 4278 invoked from network); 17 Sep 1999 05:48:15 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by magnet.plus.net.uk with SMTP; 17 Sep 1999 05:48:15 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 11RqSW-0004kX-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 17 Sep 1999 06:21:20 +0100 Received: from ah-img-rel-1.compuserve.com ([149.174.217.152] helo=hpamraaa.compuserve.com) by post.thorcom.com with esmtp (Exim 3.02 #1) id 11RqSV-0004kQ-00 for rsgb_lf_group@blacksheep.org; Fri, 17 Sep 1999 06:21:19 +0100 Received: (from mailgate@localhost) by hpamraaa.compuserve.com (8.8.8/8.8.8/HP-REL-1.2) id BAA11822 for rsgb_lf_group@blacksheep.org; Fri, 17 Sep 1999 01:20:47 -0400 (EDT) Received: from dave (mfs-pci-bqe-vty4.as.wcom.net [212.211.0.4]) by hpamraaa.compuserve.com (8.8.8/8.8.8/HP-REL-1.2) with SMTP id BAA11777 for ; Fri, 17 Sep 1999 01:20:40 -0400 (EDT) Message-ID: <000201bf00cc$3bb96f40$0400d3d4@dave> From: "Dave Sergeant" To: "rsgb_lf_group" References: Subject: LF: Re: former/future usage of german LF frequencies Date: Thu, 16 Sep 1999 19:01:34 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: >From Dave G3YMC Having read in more detail the German original of the proposal to allocate various LF frequencies to the pager service I note the following. The questionaire appears directed at potential users of these frequencies for pager services - ie there may be several networks operating independantly. It implies however that one individual network will use a single transmitter designed to cover the whole of Germany. On that basis it would also be quite strong in most of the rest of western Europe. The modulation is data in a 500Hz bandwidth, time multiplexed, and presumably is fairly similar to DCF39. The notes point out that the 136.8 frequency is already allocated on a primary basis in countries outside DL, and any allocation must not cause interference to these. Perhaps there are even more transmitters liable to appear unannounced on it! Closing date for comments on the proposals is October 1st. Perhaps some input from the DARC and RSGB would be appropriate before that date - but it is not long! There is no indication of when the formal allocations would be made or when transmissions would commence. It would be unfortunate if the 136.8 transmitter came on, but in reality there is probably little we can do about it in a shared band. 73s Dave G3YMC sergeantd@compuserve.com http://ourworld.compuserve.com/homepages/sergeantd