Return-Path: Received: from mtain-dc02.r1000.mx.aol.com (mtain-dc02.r1000.mx.aol.com [172.29.64.130]) by air-mc05.mail.aol.com (v129.4) with ESMTP id MAILINMC053-a9694ce641152e; Fri, 19 Nov 2010 04:19:17 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id DEA7D380000DB; Fri, 19 Nov 2010 04:19:15 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PJN65-00035w-O7 for rs_out_1@blacksheep.org; Fri, 19 Nov 2010 09:17:33 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PJN65-00035n-CP for rsgb_lf_group@blacksheep.org; Fri, 19 Nov 2010 09:17:33 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PJN64-0004K9-NQ for rsgb_lf_group@blacksheep.org; Fri, 19 Nov 2010 09:17:33 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id oAJ9Gc98004830 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 19 Nov 2010 10:16:38 +0100 Received: from [129.206.29.99] (pc99.iup.uni-heidelberg.de [129.206.29.99]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id oAJ9HUS2020663; Fri, 19 Nov 2010 10:17:30 +0100 Message-ID: <4CE64003.8020304@iup.uni-heidelberg.de> Date: Fri, 19 Nov 2010 10:14:43 +0100 From: =?windows-1252?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org CC: Paul , Bernd Grupe References: <4CD861D8.3070904@iup.uni-heidelberg.de><4CD920EB.4070707@mvnet.de><4CE28C13.3080200@iup.uni-heidelberg.de><8CD53CE511474E6-848-EAE@webmail-d027.sysops.aol.com><4CE2E571.6030500@iup.uni-heidelberg.de><4CE3BC5A.4070408@o2.ie><4CE4F91C.9070709@iup.uni-heidelberg.de><739785511.4774764.1290079833746.JavaMail.fmail@mwmweb080> <4B7D642B16CE4B7A8FE8BEED6EF025B8@ns94d01ae4d850> In-Reply-To: <4B7D642B16CE4B7A8FE8BEED6EF025B8@ns94d01ae4d850> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: VLF: Long time transmission on earth antenna Content-Type: text/plain; charset=windows-1252; 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: 3039ac1d40824ce641137708 X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) Dear VLF, It seems these batteries are not in best condition. The carrier got weaker and weaker in the morning and disappeared arround 5 UTC. The SMPS that drives the PA is designed to generate its own 15 V supply once it started to run. But if the input voltage falls below 10V (or 9) it shuts down. Seems that this has happend... The batteries have > 300 Ah in sum so it should have been no problem, actually... I assume no one except me has detected anything? BTW: The starting time was 15:30 UTC so the DFCW shift appeared at 23:30 UTC 73, Stefan/DK7FC