Return-Path: Received: from mtain-ma08.r1000.mx.aol.com (mtain-ma08.r1000.mx.aol.com [172.29.96.16]) by air-df07.mail.aol.com (v129.4) with ESMTP id MAILINDF071-5efa4bd8138c34a; Wed, 28 Apr 2010 06:53:00 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-ma08.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9F0A6380000B8; Wed, 28 Apr 2010 06:52:58 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O74rL-0001IO-Kl for rs_out_1@blacksheep.org; Wed, 28 Apr 2010 11:51:15 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O74rL-0001IF-3u for rsgb_lf_group@blacksheep.org; Wed, 28 Apr 2010 11:51:15 +0100 Received: from lnx503.hrz.tu-darmstadt.de ([130.83.156.232]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O74rI-0005Qx-EH for rsgb_lf_group@blacksheep.org; Wed, 28 Apr 2010 11:51:14 +0100 Received: from FILE-SERVER-HST.hst.e-technik.tu-darmstadt.de (File-Server-HST.hst.e-technik.tu-darmstadt.de [130.83.212.129]) by lnx503.hrz.tu-darmstadt.de (8.14.2/8.14.2/HRZ/PMX) with SMTP id o3SAp6SV008382 for ; Wed, 28 Apr 2010 12:51:06 +0200 (envelope-from schaefer@hst.tu-darmstadt.de) Received: from [127.0.0.1] (helo=File-Server-HST.hst.e-technik.tu-darmstadt.de) by FILE-SERVER-HST.hst.e-technik.tu-darmstadt.de with AVK MailGateway; for ; Wed, 28 Apr 2010 12:51:06 +0200 Content-class: urn:content-classes:message MIME-Version: 1.0 X-MimeOLE: Produced By Microsoft Exchange V6.5 Date: Wed, 28 Apr 2010 12:49:38 +0200 Message-ID: <38A51B74B884D74083D7950AD0DD85E82A1BE7@File-Server-HST.hst.e-technik.tu-darmstadt.de> X-MS-Has-Attach: X-MS-TNEF-Correlator: <38A51B74B884D74083D7950AD0DD85E82A1BE7@File-Server-HST.hst.e-technik.tu-darmstadt.de> Thread-Topic: 8,97 kHz active antenna circuit and pictures Thread-Index: AcrmVJvmciO/9iPOQtmiefnk5TZOmQAa+Puz References: From: =?iso-8859-1?Q?Stefan_Sch=E4fer?= To: X-AVK-Virus-Check: AVB 21.17;28.04.2010 X-PMX-TU: seen v0.99a by 5.5.9.388399, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2010.4.28.103615 X-PMX-RELAY: mailout X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CAE6C0.B41082A8" Subject: VLF: 8,97 kHz active antenna circuit and pictures 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-VSS-INFO: 5400.1158/58000 X-AOL-VSS-CODE: clean x-aol-sid: 3039ac1d60104bd8138a3151 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) ------_=_NextPart_001_01CAE6C0.B41082A8 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear LF,=20 Daniele and others asked for the circuit of my active E field antenna that= i am using for my grabber. Now i have created a pdf file where you can fi= nd the circuit and a picture of the arrangement and a spectrogram of the= currently working circuit. http://www.iup.uni-heidelberg.de/schaefer_vlf/8,97kHz%20active%20E%20field= %20antenna%20by%20DK7FC.pdf So, if you are interested or want to get some ideas for your own circuit,= take a look on it. I hope the link works. So, best 73 and maybe cu this evening there, dreamers. 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