Return-Path: X-Spam-DCC: paranoid 1169; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t4GMquZI013870 for ; Sun, 17 May 2015 00:52:56 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ytkqa-0004EB-Bh for rs_out_1@blacksheep.org; Sat, 16 May 2015 23:46:20 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YtkqZ-0004E2-H1 for rsgb_lf_group@blacksheep.org; Sat, 16 May 2015 23:46:19 +0100 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.85) (envelope-from ) id 1YtkqX-0007Wn-KM for rsgb_lf_group@blacksheep.org; Sat, 16 May 2015 23:46:18 +0100 Received: from crusoe.iup.uni-heidelberg.de (crusoe.iup.uni-heidelberg.de [129.206.22.248]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id t4GMkFsv017688 for ; Sun, 17 May 2015 00:46:16 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by crusoe.iup.uni-heidelberg.de (Postfix) with ESMTP id B9694E008E for ; Sun, 17 May 2015 00:46:15 +0200 (CEST) Message-ID: <5557C8B7.2080503@posteo.de> Date: Sun, 17 May 2015 00:46:15 +0200 From: DK7FC 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" X-Scan-Signature: 5c1f37c04fc013ebbc2288fd3791d043 Subject: LF: OT: More solar power for my remote receiver Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 3125 Hi all, Yesterday i've installed a second solar module to my remote receiver in my garden, which is currently running as a MF station: http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_remote_Grabber.html It is a 50 Wp module that is now parallel to the 20 Wp module. Meanwhile the battery capacity was increased to 3 x 7 Ah. And some branches were removed. Despite a more or less overcast day and a permanent current consumption of 240 mA by the Raspi+Receiver, i got enough energy input to reach the upper battery voltage limit near 14V, which causes the regulator to interrupt the charging. So this is a good sign. The goal is to reach a availability as high as possible, even in winter and bad WX. Most likely i have to increase the battery capacity for that. But i will continue in steps :-) For the installations i extra bought a climbing gear, which allows to operate into the tree with both hands in 15 m AGL. Some crazy images at https://www.dropbox.com/sh/qx0na18bycukuz8/AAAms8Ne-O_3_A6uiuPf9DVca?dl=0 73, Stefan