Return-Path: Received: (qmail 285 invoked from network); 9 May 2001 14:08:10 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by 10.226.25.101 with SMTP; 9 May 2001 14:08:10 -0000 Received: (qmail 3071 invoked from network); 9 May 2001 13:54:27 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 9 May 2001 13:54:27 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14xTsm-0005W4-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 09 May 2001 14:20:00 +0100 Received: from rubellite.lion-access.net ([212.19.217.4]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14xTsi-0005Vz-00 for rsgb_lf_group@blacksheep.org; Wed, 09 May 2001 14:19:56 +0100 Received: from w8k3f0 (1Cust80.tnt13.rtm1.nl.uu.net [213.116.120.80]) by rubellite.lion-access.net (I-Lab) with SMTP id BEC4429C4 for ; Wed, 9 May 2001 13:18:32 +0000 (GMT) Message-ID: <002d01c0d88a$fa7daa80$fd8c74d5@w8k3f0> From: "Dick Rollema" To: rsgb_lf_group@blacksheep.org References: <3AF937DE.505.AF99B3@localhost> Subject: Re: LF: Antenna Current Date: Wed, 9 May 2001 15:20:56 +0200 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 5.00.2314.1300 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: To All from PA0SE When talking about the voltage on a certain point in a circuit it must be stated against which other point it is measured. When the loading coil is connected to earth at its bottom end and when voltage is measured also against earth then the voltage at the bottom end of the coil is zero and at the top it is I times X; with I = current in the coil and X = inductive reactance of the coil. 73, Dick, PA0SE ----- Oorspronkelijk bericht ----- Van: Mike Dennison Aan: Verzonden: woensdag 9 mei 2001 13:28 Onderwerp: Re: LF: Antenna Current > > If the voltage on the output of the coil is higher than that on the input then > > (for constant power) the current must be less. > > Nick > > G4WHO > > Ah. This is one of the great mysteries of loading coils that has always baffled > me. Does anyone have a good explanation? > > > Mike, G3XDV (IO91VT) > http://www.lf.thersgb.net > > >