Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk03.r1000.mx.aol.com (Internet Inbound) with ESMTP id A5F9938000091; Sat, 5 Nov 2011 06:58:15 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RMdw3-0003bA-Lw for rs_out_1@blacksheep.org; Sat, 05 Nov 2011 10:57:15 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RMdw3-0003b1-6D for rsgb_lf_group@blacksheep.org; Sat, 05 Nov 2011 10:57:15 +0000 Received: from rhcavuit02.kulnet.kuleuven.be ([134.58.240.130] helo=cavuit02.kulnet.kuleuven.be) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RMdw1-0003ls-QQ for rsgb_lf_group@blacksheep.org; Sat, 05 Nov 2011 10:57:15 +0000 X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: D054E128083.A997B X-KULeuven-Information: Katholieke Universiteit Leuven Received: from smtps01.kuleuven.be (smtpshost01.kulnet.kuleuven.be [134.58.240.74]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id D054E128083 for ; Sat, 5 Nov 2011 11:57:01 +0100 (CET) Received: from ICTS-S-HUB-N1.luna.kuleuven.be (icts-s-hub-n1.luna.kuleuven.be [10.112.9.11]) by smtps01.kuleuven.be (Postfix) with ESMTP id 7238631E702 for ; Sat, 5 Nov 2011 11:57:01 +0100 (CET) Received: from ICTS-S-EXC2-CA.luna.kuleuven.be ([10.112.11.13]) by ICTS-S-HUB-N1.luna.kuleuven.be ([10.112.9.11]) with mapi; Sat, 5 Nov 2011 11:57:01 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Date: Sat, 5 Nov 2011 11:57:01 +0100 Thread-Topic: Al as a Loop Conductor ? Thread-Index: AcybUmyjH2ZYUTAiRD+N/9ijZN1lswAVcW5D Message-ID: References: In-Reply-To: Accept-Language: nl-NL, nl-BE Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: nl-NL, nl-BE MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: RE: Al as a Loop Conductor ? Content-Type: text/plain; charset="us-ascii" 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=TO_ADDRESS_EQ_REAL 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: 0:2:469463744:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d61874eb516c77684 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Warren, aluminium has a higher resistivity (28x10^-9 Ohmmeter) than copper (17x10^-= 9 Ohmmeter) but it has a larger skin depth (Al =3D 260 um, Cu =3D 210 um at= 100kHz). That makes an Al wire only 33% worse than a Cu wire of the same diameter. Regarding mechanical strength it might be a good idea to inforce this by a = steel wire support. 73, Rik ON7YD - OR7T=20 ________________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org= ] namens Warren Ziegler [wd2xgj@gmail.com] Verzonden: zaterdag 5 november 2011 1:30 Aan: rsgb_lf_group Onderwerp: LF: Al as a Loop Conductor ? Hi, I am considering using Aluminum service drop wire (3/0 gauge) as a conductor for an LF transmitting loop. I know that the conductivity is not as good as copper but it weighs so much less that I can use a larger diameter conductor. Has anyone tried this? How would it hold up when flexed by the wind ? Other thoughts? -- 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1=