Return-Path: Received: from mtain-me02.r1000.mx.aol.com (mtain-me02.r1000.mx.aol.com [172.29.96.138]) by air-de05.mail.aol.com (v129.4) with ESMTP id MAILINDE052-5eb34d3eee0a97; Tue, 25 Jan 2011 10:36:42 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-me02.r1000.mx.aol.com (Internet Inbound) with ESMTP id BD182380000FE; Tue, 25 Jan 2011 10:36:40 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Phkvl-0000z1-Go for rs_out_1@blacksheep.org; Tue, 25 Jan 2011 15:35:41 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Phkvk-0000ys-Ve for rsgb_lf_group@blacksheep.org; Tue, 25 Jan 2011 15:35:40 +0000 Received: from filter02.i-online.fr ([195.200.78.9]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Phkvj-0004d0-6Z for rsgb_lf_group@blacksheep.org; Tue, 25 Jan 2011 15:35:40 +0000 Received: from smtp.qtxt.dns-iol.com ([195.200.78.13]) by filter02.i-online.fr (IceWarp 10.0.7 (2010-02-10)) with ESMTP (SSL) id IQI65822 for ; Tue, 25 Jan 2011 16:35:22 +0100 Received: (qmail 17373 invoked by uid 507); 25 Jan 2011 16:35:21 +0100 Received: from unknown (HELO JR) (john.rabson@numeo.fr@217.67.155.178) by smtp.qtxt.dns-iol.com with SMTP; 25 Jan 2011 16:35:21 +0100 Message-ID: <201101251635300952.235E9B8D@smtp2.numeo.fr> X-Mailer: Courier 3.50.00.09.1098 (http://www.rosecitysoftware.com) (P) Date: Tue, 25 Jan 2011 16:35:30 +0100 From: "John RABSON" To: rsgb_lf_group@blacksheep.org Mime-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: 16 kHz again Content-Type: text/plain; charset="us-ascii" 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-sid: 3039ac1d608a4d3eee080891 X-AOL-IP: 195.171.43.25 LF, Please see correspondence between G3NYK and G3PAI below. Perhaps GBR has= gone /M. 73 John F5VLF >----- Original Message ----- >From: "John Rabson" >To: >Sent: 24 May 2004 16:06 >Subject: LF: GBR SK - long live GBR/M > > >> Pages 50-52 of The Journal of the Communications Network for >> October-December 2003 has an article on "Realising a Quarter Wavelength >> Vertical Monopole at Low Frequencies - by Balloon". It describes a >> vehicle-mounted system with a helium-filled balloon capable of supporti= ng >a >> 1500m vertical. Operation on the move is not expected. >> >> 73 >> John Rabson G3PAI >> > >Hi John, this is not a trivial exercise when you stop to think about it. >1500feet of wire is quite heavy and you then need the balloon to be big >enough to lift that weight....plus you need strong enough wire to control >the balloon a low altitude when it has excess lift. Then there is the CAA >!! >I guess you could get a good catch ranging from Microlights up through >Cesnas, Lears, and probably the odd 737 !!....not to mention the choppers >that would "wind themselves in" > >I may be testing again soon with QRP QRSS. > >I hope you and Rosie are keeping well. > >Alan. >alan.melia@btinternet.com