Return-Path: X-Spam-DCC: paranoid 1480; 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,SPF_PASS 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 u77APE62027792 for ; Sun, 7 Aug 2016 12:25:14 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1bWLCX-0003x3-Rf for rs_out_1@blacksheep.org; Sun, 07 Aug 2016 11:21:01 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1bWLCW-0003wu-57 for rsgb_lf_group@blacksheep.org; Sun, 07 Aug 2016 11:21:00 +0100 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1bWLCU-0004cu-7h for rsgb_lf_group@blacksheep.org; Sun, 07 Aug 2016 11:20:58 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 4D53020833 for ; Sun, 7 Aug 2016 12:20:55 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3s6c526C0fz101F for ; Sun, 7 Aug 2016 12:20:54 +0200 (CEST) Message-ID: <57A70B85.1040700@posteo.de> Date: Sun, 07 Aug 2016 12:20:53 +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 References: <15654f802d8-66f8-52e5@webprd-a85.mail.aol.com> <57A32176.3060107@posteo.de> <56ff3a3a38df08d84019a9556e42316d@virginbroadband.com.au> <57A32C0B.4030707@posteo.de> In-Reply-To: <57A32C0B.4030707@posteo.de> X-Scan-Signature: 1f795a2ee1ecd56682b47ad11969b3d3 Subject: LF: Test signal on 5.33 kHz Content-Type: text/plain; charset=UTF-8; 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 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 8517 Hi VLF, Since 10:08 UTC i'm running a test transmission on 5330 Hz. About 240 mA antenna current leads to 12 kV across the D.U.T., my new loading coil which is intended for 2970 Hz. So far the inductance seems to be 1.9 H. I want to check if it actually holds the high voltage as to my estimation before i continue to add more turns. The estimation is that each winding stack has to hold 5 kV. I will then end up somewhere between 30 and 40 kV at 2970 Hz... An image: https://dl.dropboxusercontent.com/u/19882028/VLF/20160807_114115.jpg If someone wants to check if the signal is detectable in some distance.... The signal will be on the air for at least one hour. 73, Stefan