Return-Path: Received: from mtain-de04.r1000.mx.aol.com (mtain-de04.r1000.mx.aol.com [172.29.64.204]) by air-mf05.mail.aol.com (v129.4) with ESMTP id MAILINMF051-8be94bd933f83c8; Thu, 29 Apr 2010 03:23:36 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-de04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 5F5E7380000BF; Thu, 29 Apr 2010 03:23:34 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O7O4R-00014c-Js for rs_out_1@blacksheep.org; Thu, 29 Apr 2010 08:22:03 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O7O4R-00014T-7D for rsgb_lf_group@blacksheep.org; Thu, 29 Apr 2010 08:22:03 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O7O4P-0002cU-U2 for rsgb_lf_group@blacksheep.org; Thu, 29 Apr 2010 08:22:03 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id o3T7LncI022561 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 29 Apr 2010 09:21:49 +0200 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 o3T7LwF2029098 for ; Thu, 29 Apr 2010 09:21:58 +0200 Message-ID: <4BD93406.8030002@iup.uni-heidelberg.de> Date: Thu, 29 Apr 2010 09:23:50 +0200 From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= 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: , <38A51B74B884D74083D7950AD0DD85E82A1BE7@File-Server-HST.hst.e-technik.tu-darmstadt.de> <14250421.817531.1272459361995.JavaMail.fmail@mwmweb078> In-Reply-To: <14250421.817531.1272459361995.JavaMail.fmail@mwmweb078> X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id o3T7LncI022561 X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: VLF: 8,97 kHz active antenna circuit and pictures Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable 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: 3039ac1d40cc4bd933f66da0 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hello Horst, Sorry, for the bugs. The 2nd JFET is also a BF862, yes. RG174 is just an example, you can use any coaxial cable or maybe twisted= =20 pair cable. "This evening" should have been "This weekend". Still not sure about the= =20 wind conds on saturday/sunday. 73, Stefan/DK7FC Am 28.04.2010 14:56, schrieb Horst St=C3=B6cker: > Hello Stefan, > thanks for posting the circuit. > Is the second FET also a BF862? > Why RG-174? > "cu this evening" - arey you planning a test? I did not here of that. > vy73 Horst DO1KHS/DI2AN > > -----Urspr=C3=BCngliche Nachricht----- > Von: "Stefan Sch=C3=A4fer" > Gesendet: 28.04.2010 12:49:38 > An: rsgb_lf_group@blacksheep.org > Betreff: VLF: 8,97 kHz active antenna circuit and pictures > > =20 >> Dear LF, >> >> 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 find 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%20fi= eld%20antenna%20by%20DK7FC.pdf >> >> So, if you are interested or want to get some ideas for your own circui= t, take a look on it. I hope the link works. >> >> So, best 73 and maybe cu this evening there, dreamers. >> >> Stefan/DK7FC >> >> =20 > ___________________________________________________________ > GRATIS: Movie-Flat mit =C3=BCber 300 Top-Videos. F=C3=BCr WEB.DE Nutzer > dauerhaft kostenlos! Jetzt freischalten unter http://movieflat.web.de > =20