Return-Path: Received: from mtain-da06.r1000.mx.aol.com (mtain-da06.r1000.mx.aol.com [172.29.64.78]) by air-da10.mail.aol.com (v128.1) with ESMTP id MAILINDA104-86944bb4bcf13aa; Thu, 01 Apr 2010 11:34:09 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-da06.r1000.mx.aol.com (Internet Inbound) with ESMTP id BBE12380000CE; Thu, 1 Apr 2010 11:34:06 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NxMNv-0007q9-SU for rs_out_1@blacksheep.org; Thu, 01 Apr 2010 16:32:43 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NxMNv-0007q0-HZ for rsgb_lf_group@blacksheep.org; Thu, 01 Apr 2010 16:32:43 +0100 Received: from smtp-out12.han.skanova.net ([195.67.226.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NxMNt-0007Il-7b for rsgb_lf_group@blacksheep.org; Thu, 01 Apr 2010 16:32:43 +0100 Received: from [127.0.0.1] (81.235.167.68) by smtp-out12.han.skanova.net (8.5.114) (authenticated as u33233109) id 4B9F448A00599759 for rsgb_lf_group@blacksheep.org; Thu, 1 Apr 2010 17:32:33 +0200 Message-ID: <4BB4BC93.8030301@telia.com> Date: Thu, 01 Apr 2010 17:32:35 +0200 From: "Johan H. Bodin" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; sv-SE; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <001d01cad190$aa92e590$0901a8c0@lark> <4BB4B4FB.1040007@telia.com> In-Reply-To: <4BB4B4FB.1040007@telia.com> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Re: E-Field Probe calibration question Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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: 3039ac1d404e4bb4bcee522c X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Oops.. I forgot H = E/Zspace = E/(120*Pi) (plane wave in the far field) where H is mag. field strength [A/m] E is elec. field strength [V/m] /Johan Johan H. Bodin wrote: > Andy Talbot wrote: >> Now, what was the voltage from an untuned loop, again ;-? > > V = 2*Pi*f*N*A*u0*H = 2*Pi*f*N*A*B > > Where > f [Hz] > N [turns] > A [m^2] > H [A/m] > B [Tesla] > u0 = 4*Pi*10^-7 > > If not properly aligned with the field, multiply by cos(angle). > > http://vk1od.net/antenna/SmallUntunedSquareLoop/ > http://sidstation.lionelloudet.homedns.org/antenna-theory-en.xhtml > > 73 > Johan SM6LKM > >