Return-Path: Received: (qmail 13912 invoked from network); 29 Mar 2002 16:55:00 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 29 Mar 2002 16:55:00 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 2944 invoked from network); 29 Mar 2002 16:54:56 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 29 Mar 2002 16:54:56 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16r176-0001Bq-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 29 Mar 2002 18:28:36 +0000 Received: from astral.infomsk.ru ([212.164.44.2] helo=astral.omskcity.com) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16r175-0001Bl-00 for rsgb_lf_group@blacksheep.org; Fri, 29 Mar 2002 18:28:35 +0000 Received: from fitec.omskcity.com (mu06.dialup2.infomsk.ru [212.164.44.118]) by astral.omskcity.com (8.9.3/8.9.3) with SMTP id WAA3ca49ae21e7b for ; Fri, 29 Mar 2002 22:48:34 +0600 (OS) Date: Sat, 30 Mar 2002 00:27:43 +0000 (GMT) From: "Alexander S. Yurkov" To: rsgb_lf_group@blacksheep.org Subject: Re: LF: transmitting loops In-reply-to: <3.0.1.16.20020329161612.3cb72752@pb623250.kuleuven.be> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hello Rik and Group. On Fri, 29 Mar 2002, Rik Strobbe wrote: > 1. Does someone has a formula that has proven to be usable for big loops. About 7 years ago I have derived formula for circular loop. It is very simple L=D*N^2. Where D is diameter im meters, L - inductance in microhenry, N is turns number. The formula seems to be very aproximate. I have not test it acurance. But I sucsesfully use it for aproximate estimations. 73 de RA9MB/Alex http://www.qsl.net/ra9mb