Return-Path: Received: from mtain-dc06.r1000.mx.aol.com (mtain-dc06.r1000.mx.aol.com [172.29.64.134]) by air-me01.mail.aol.com (v129.4) with ESMTP id MAILINME011-8ba04d1e0c862fc; Fri, 31 Dec 2010 12:01:58 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9004B3800017E; Fri, 31 Dec 2010 12:01:44 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PYiLe-0004Ny-IX for rs_out_1@blacksheep.org; Fri, 31 Dec 2010 17:01:02 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PYiLe-0004Np-6I for rsgb_lf_group@blacksheep.org; Fri, 31 Dec 2010 17:01:02 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PYiLd-0007if-Bf for rsgb_lf_group@blacksheep.org; Fri, 31 Dec 2010 17:01:02 +0000 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id oBVH10iK027413 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 31 Dec 2010 18:01:00 +0100 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id oBVH0xDT031563 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 31 Dec 2010 18:00:59 +0100 Received: from [147.142.13.32] (vpn513-032.rzuser.uni-heidelberg.de [147.142.13.32]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id oBVH0w3Q002932 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 31 Dec 2010 18:00:59 +0100 Message-ID: <4D1E0C5D.9000608@iup.uni-heidelberg.de> Date: Fri, 31 Dec 2010 18:01:17 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <11250.89514.qm@web28501.mail.ukl.yahoo.com> <4D1DC897.2060606@iup.uni-heidelberg.de> <76636.6973.qm@web28508.mail.ukl.yahoo.com> <1567AC3A96624647ADC1F52EF1A1E625@JimPC> In-Reply-To: <1567AC3A96624647ADC1F52EF1A1E625@JimPC> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: VLF - G3XIZ Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: 3039ac1d40864d1e0c785ed8 X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) Congratulations to the new record Chris, Jim, What is the exact distance? Some 10 km i think. http://no.nonsense.ee/qthmap/ Chris, can't you use the inv-L and the balloon antenna in parallel? This lowers the voltage and needed L, so less losses. And you can make QRO without increasing the HV problems. If you come back to the same antenna voltage, you will surely improve the ERP! And the resonance is rather less affected by the vertical antenna movement due to wind since the inv-L part stays constant! If you increase the wire length to 60m (limit in UK) you would increase the efficiency by up to 50% and lower the voltage by 20%! Nice success just some minutes before 2011 :-) 73, GL, Stefan/DK7FC Am 31.12.2010 14:54, schrieb James Moritz: > Dear Chris, LF Group, > > I seem to have a trace on your frequency - see attachment. SNR is > currently around 15dB with 1.5millihertz FFT resolution. It definitely > wasn't there before ;-) > > Cheers, Jim Moritz > 73 de M0BMU