Return-Path: Received: (qmail 23691 invoked from network); 14 May 2002 12:26:28 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 14 May 2002 12:26:28 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 2987 invoked from network); 14 May 2002 12:26:14 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 14 May 2002 12:26:14 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 177bK1-00001r-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 14 May 2002 13:22:29 +0100 Received: from mail2.cc.kuleuven.ac.be ([134.58.10.50]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 177bK0-00001m-00 for rsgb_lf_group@blacksheep.org; Tue, 14 May 2002 13:22:28 +0100 Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail2.cc.kuleuven.ac.be (8.12.1/8.12.1) with SMTP id g4ECLucF076106 for ; Tue, 14 May 2002 14:21:56 +0200 Message-ID: <3.0.1.16.20020514131621.08dfed86@pb623250.kuleuven.be> X-Sender: pb623250@pb623250.kuleuven.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Tue, 14 May 2002 13:16:21 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: RE: LF: Ground loss In-reply-to: References: <3.0.1.16.20020514104945.21f7a680@pb623250.kuleuven.be> 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 Alex, >If Lcp=0 this means that ground wire only touch to the ground in infinity >small point. So R should be infinity large. If there is no conterpoint >Lcp is a ground rod length. I agree about Lcp is really 0. But if I take Lcp = 0.2m (short ground rod only), Lant= 30m , C = 150pF (Xc = 7800 Ohm) and a = 0.01 then R = (Lant/Lcp)*a*Xc = 11700 Ohm. I believe that this value is far too high, a more realistic value would be a few hundred Ohm. >One more quation, Rik. Do You get formula I sent to Group for rectangular >loop inductance? I am not sure You get it... Yes, have a look at : http://www.qsl.net/on7yd/136ant.htm#TransmitLoop > >73 de RA9MB/Alex >http://www.qsl.net/ra9mb > > > >