Return-Path: Received: (qmail 6705 invoked from network); 13 Jul 2001 08:19:36 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 13 Jul 2001 08:19:36 -0000 Received: (qmail 16444 invoked from network); 13 Jul 2001 08:18:35 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 13 Jul 2001 08:18:35 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15Ky1F-00086k-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 13 Jul 2001 09:09:49 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from mail.cc.kuleuven.ac.be ([134.58.10.6]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15Ky1B-00086f-00 for rsgb_lf_group@blacksheep.org; Fri, 13 Jul 2001 09:09:45 +0100 Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail.cc.kuleuven.ac.be (8.9.3/8.9.0) with SMTP id KAA667560 for ; Fri, 13 Jul 2001 10:09:04 +0200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3.0.1.16.20010713090856.2c4fb460@mail.cc.kuleuven.ac.be> X-Sender: pb623250@mail.cc.kuleuven.ac.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Fri, 13 Jul 2001 09:08:56 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: Re: LF: License for below 9 kHz!!!!! In-reply-to: <000f01c10b25$eac09670$0a00a8c0@ThreeLakes.ca> References: <7D653C9C42F5D411A27C00508BF8803D55C54C@pdw-mail-r1.dstl.gov.uk> <000c01c10ae4$3a405380$bba97ad5@default> <3B4DB52C.380B2619@usa.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: >> > > The RSGB are still pursuing my 9kHz NOV application with the >> > > authorities > >There is no requirement for any for of authorization below 9 kHz in Canada, >this is why the work I did last winter was at 8.998 kHz. Same situation in Belgium : via our society (UBA) the question was raised with the regulation authority (BIPT / IBPT) and their answer was that their regulation starts at 9kHz, so below that frequency you do not need any licence. One should however take into account that all harmonics of a 8.9xxkHz signal are well above 9kHz so only a clean sinusoidal signal should be used especially if you do not use a tuned (narrowband) antenna. Those who are interested in this matter should have a look here : http://www.qsl.net/vk2zto/UEVLF/uevlf_comms.htm the 'downunder' distance record seems to be 1.6km 73, Rik ON7YD