Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 3531F3800008D; Wed, 30 May 2012 08:38:32 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SZi8V-0007Al-4U for rs_out_1@blacksheep.org; Wed, 30 May 2012 13:36:23 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SZi8U-0007Ac-Mq for rsgb_lf_group@blacksheep.org; Wed, 30 May 2012 13:36:22 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1SZi8S-00064t-KB for rsgb_lf_group@blacksheep.org; Wed, 30 May 2012 13:36:21 +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 q4UCaHuJ030386 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 30 May 2012 14:36:18 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id q4UCaHcj020523 for ; Wed, 30 May 2012 14:36:17 +0200 Message-ID: <4FC613EE.1020903@iup.uni-heidelberg.de> Date: Wed, 30 May 2012 14:34:54 +0200 From: =?ISO-8859-15?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 References: <4FC39CF3.7020701@legal-medicine.de> <003a01cd3cee$0e74a1a0$1502a8c0@Clemens04> <4FC51191.8060004@legal-medicine.de> <4FC51B11.3010907@iup.uni-heidelberg.de> <4FC525DA.9040204@legal-medicine.de> In-Reply-To: <4FC525DA.9040204@legal-medicine.de> X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Peter, Unbelivable! I just found the INA111 also at RS components and even Reichelt in Germany has it available! [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 0317e2ac8ed27149e57223a21580246d Subject: Re: LF: Re: VLF/LF-Preamp Content-Type: multipart/alternative; boundary="------------070507030601060308040105" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE 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-SCOLL-SCORE: 1:2:428205056:93952408 X-AOL-SCOLL-URL_COUNT: 2 x-aol-sid: 3039ac1d60154fc614c66da5 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror This is a multi-part message in MIME format. --------------070507030601060308040105 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Hi Peter, Unbelivable! I just found the INA111 also at RS components and even Reichelt in Germany has it available! Now i consider to try a similar design. I'm still not sure if i'm loosing some dB here on the LF grabber since i have to use the lightning earth system here 35m above ground level. No separate clean earth available in that height. Maybe a better solution than a simple common mode choke... Do you have further useful ideas for constructors? 73, Stefan/DK7FC > >> Where do you have the INA111 from? > > From Farnell, the TLE2426 voltage splitter too. > --------------070507030601060308040105 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Hi Peter,

Unbelivable! I just found the INA111 also at RS components and even Reichelt in Germany has it available!

Now i consider to try a similar design. I'm still not sure if i'm loosing some dB here on the LF grabber since i have to use the lightning earth system here 35m above ground level. No separate clean earth available in that height. Maybe a better solution than a simple common mode choke...
Do you have further useful ideas for constructors?

73, Stefan/DK7FC


Where do you have the INA111 from?

>From Farnell, the TLE2426 voltage splitter too.

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