Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dh04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8B3B73800009D; Tue, 28 Feb 2012 03:37:12 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1S2IXb-0002mk-5L for rs_out_1@blacksheep.org; Tue, 28 Feb 2012 08:36:11 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1S2IXa-0002mb-Fz for rsgb_lf_group@blacksheep.org; Tue, 28 Feb 2012 08:36:10 +0000 Received: from filter02.i-online.fr ([195.200.78.9]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1S2IXZ-0000nK-1P for rsgb_lf_group@blacksheep.org; Tue, 28 Feb 2012 08:36:10 +0000 Received: from smtp.qtxt.dns-iol.com ([195.200.78.13]) by filter02.i-online.fr (IceWarp 10.2.2) with ESMTP (SSL) id MKL98248 for ; Tue, 28 Feb 2012 09:35:48 +0100 Received: (qmail 21606 invoked by uid 507); 28 Feb 2012 09:36:00 +0100 Received: from unknown (HELO ?192.168.1.101?) (john.rabson@numeo.fr@217.67.155.178) by smtp.qtxt.dns-iol.com with SMTP; 28 Feb 2012 09:36:00 +0100 Mime-Version: 1.0 (Apple Message framework v1257) From: John Rabson X-Priority: 3 In-Reply-To: <098856018E3A46AB96BA9F9FC6C8FFCD@JimPC> Date: Tue, 28 Feb 2012 09:36:01 +0100 Message-Id: <68CBE1C7-B996-4ED8-A442-9E35C6A3F851@numeo.fr> References: <74845C11BC3444D79B63A207E428BDE0@lindavideo> <1205576556-1330352309-cardhu_decombobulator_blackberry.rim.net-124445598-@b27.c11.bise7.blackberry> <005701ccf561$cd9d4250$0401a8c0@xphd97xgq27nyf> <098856018E3A46AB96BA9F9FC6C8FFCD@JimPC> To: rsgb_lf_group@blacksheep.org X-Mailer: Apple Mail (2.1257) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: NDBs & WRC-12 LF band allocation Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:408930336:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d41184f4c92380479 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none We have shared frequency bands with professionals for many years and = have used a wide variety of modes of transmission. I see no need to make = regulations to restrict the use of CW on MF. Obviously, analogue speech is wasteful of bandwidth and should not be = used in the new allocation. Anyone who did so would be subject to = strong social pressure from the amateur community (in other words, = nobody would work them). On the other hand, if you could fit a usable speech system in the gaps = between the NDBs this would be something worth trying. It would be one = of the things the amateur service is supposed to go in for =96 = investigating new methods.=20 I don't think the LF professionals ever investigated the majority of the = digital modulation schemes we have recently used with such success on = 136. They had plenty of real estate and the budget for high-power = transmitters and did not need to. John F5VLF