Return-Path: X-Spam-DCC: paranoid 1290; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00 autolearn=ham version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id sBFEaJi7016834 for ; Mon, 15 Dec 2014 15:36:19 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Y0WeV-0004RK-Cj for rs_out_1@blacksheep.org; Mon, 15 Dec 2014 14:29:35 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Y0WeU-0004RB-V2 for rsgb_lf_group@blacksheep.org; Mon, 15 Dec 2014 14:29:34 +0000 Received: from fish2.hurontel.on.ca ([216.46.129.163]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.84) (envelope-from ) id 1Y0WeT-0001OJ-B2 for rsgb_lf_group@blacksheep.org; Mon, 15 Dec 2014 14:29:33 +0000 X-ASG-Debug-ID: 1418653769-0718de5ef22e470001-a32kfu Received: from [192.168.1.102] (pppoe.dyn-216.46.157.127.hurontel.on.ca [216.46.157.127]) by fish2.hurontel.on.ca with ESMTP id WLo8YFRLuB8M1ALn for ; Mon, 15 Dec 2014 09:29:29 -0500 (EST) X-Barracuda-Envelope-From: weazle@hurontel.on.ca X-Barracuda-Apparent-Source-IP: 216.46.157.127 Mime-Version: 1.0 (Apple Message framework v1085) From: John Bruce McCreath X-ASG-Orig-Subj: Re: LF: Antenna Current meters In-Reply-To: <1418644460.73583.YahooMailBasic@web173006.mail.ir2.yahoo.com> Date: Mon, 15 Dec 2014 09:29:29 -0500 Message-Id: References: <1418644460.73583.YahooMailBasic@web173006.mail.ir2.yahoo.com> To: rsgb_lf_group@blacksheep.org X-Mailer: Apple Mail (2.1085) X-Barracuda-Connect: pppoe.dyn-216.46.157.127.hurontel.on.ca[216.46.157.127] X-Barracuda-Start-Time: 1418653769 X-Barracuda-URL: http://fish.hurontel.on.ca:8000/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at hurontel.on.ca X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.12929 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Scan-Signature: 0b2d339ae1d48966556dfb6ad64e2bce Content-Type: text/plain; charset=us-ascii Subject: Re: LF: Antenna Current meters 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by paranoid.lipkowski.org id sBFEaJi7016834 Status: O X-Status: X-Keywords: X-UID: 1502 I use a small toroid as a current transformer, but it's on the ground side rather than the Ae lead. Since the Marconi antenna, loading coil/variometer, and the ground radials are a series circuit, it makes sense to do the measuring in the "cold" lead. I use a similar arrangement to tune my Tesla coils, which keeps the sensitive meters away from the discharges! 73, J.B., VE3EAR LowFER Beacon "EAR" 188.830 kHz. QRSS30 EN93dr