Return-Path: Received: (qmail 17158 invoked from network); 18 Jun 2001 12:44:46 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 18 Jun 2001 12:44:46 -0000 Received: (qmail 7585 invoked from network); 18 Jun 2001 12:43:50 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 18 Jun 2001 12:43:50 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15ByII-0007a9-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 18 Jun 2001 13:38:14 +0100 Received: from smtp.snet.net ([204.60.6.55]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15ByIE-0007a4-00 for rsgb_lf_group@blacksheep.org; Mon, 18 Jun 2001 13:38:10 +0100 Received: from pop.snet.net (pop.snet.net [204.60.6.9]) by smtp.snet.net (8.11.1/8.11.1/SNET-mx-1.4/D-1.10/O-1.7) with ESMTP id f5ICbRC25046 for ; Mon, 18 Jun 2001 08:37:28 -0400 (EDT) Received: from rescueelect (nwhn-sh22-port77.snet.net [204.60.247.77]) by pop.snet.net (8.11.1/8.11.1/SNET-pop-1.5/D-1.8/O-1.6) with SMTP id f5ICbRj10265 for ; Mon, 18 Jun 2001 08:37:27 -0400 (EDT) Message-ID: <001501c0f7f3$8b3083e0$0100a8c0@mshome.net> From: "Paul A. Cianciolo" To: rsgb_lf_group@blacksheep.org Subject: LF: Anyone using a magnetic loop for 136 Khz? Date: Mon, 18 Jun 2001 08:38:14 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hello Folk. I have had a sudden interest in small manetic transmitting loops lately. Have seen manty designs for 160 meters and above but not too much on LF. Anyone running one of these at 136Khz? How is the feeding done?\\ Most designs that I have seen use tubing to reduce the I*R losses. Do to skin effect I realize that current flows only on the surface of the conductor. This maseem like a very basic question but do current flow on the inside of the tubing? And if it does of what use is it? Seems to me like it would not be useful for radiating purposes since it is inside of a shielded pipe. Would not a flat strap cable be better? Thank you Looking toward 136 Khz!!!!!!! Paulc W1VLF Cloudbounce Webpage http://www.qsl.net/w1vlf/ Rescue Electronic Surplus http://www.rescueelectronics.com 1982 Vanagon Diesel Turbo Diesel 1.9 GE Electrak E20 and E15 electric tractors First place in local tractor pulls at 1750 LBS With Stock E-20 Electric tractor Air Rifle Target Shooting Enthusiast