Return-Path: Received: (qmail 3487 invoked from network); 12 Feb 2002 19:23:54 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by exhibition.plus.net with SMTP; 12 Feb 2002 19:23:54 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 17774 invoked from network); 12 Feb 2002 19:23:46 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 12 Feb 2002 19:23:46 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16aiSW-0001bJ-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 12 Feb 2002 19:19:20 +0000 Received: from mailhost.netscapeonline.co.uk ([194.201.52.152]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16aiSV-0001bE-00 for rsgb_lf_group@blacksheep.org; Tue, 12 Feb 2002 19:19:19 +0000 Received: from ldsas09-73-124-119.cw-visp.com ([212.137.124.119] helo=netscapeonline.co.uk) by mailhost.netscapeonline.co.uk with esmtp (Exim 3.34 #1) id 16aiGQ-0005ZF-00 for rsgb_lf_group@blacksheep.org; Tue, 12 Feb 2002 19:06:50 +0000 Message-ID: <3C69601B.15374F96@netscapeonline.co.uk> Date: Tue, 12 Feb 2002 18:34:03 +0000 From: "gii3kev" Organization: Netscape Online member X-Mailer: Mozilla 4.6 [en-gb]C-CCK-MCD NetscapeOnline.co.uk (Win95; I) X-Accept-Language: en-GB,en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re: LITZ WIRE References: <3C691C9E.61A8BCA1@netscapeonline.co.uk> <000a01c1b3cf$7f5d2ee0$6a01a8c0@cianciolo> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: PC wrote: > Mal, and group > > To what do you attribute the changes in tuning using the higher Q litz wire? > I mean when the wind blows > Is it movement in the antenna wire itself? Or > is it an effect of the air/moisture,temp. change passing over the coil? Yes one factor, when the wind blows and causes antenna wire movement because the Q is very hight for litz wire and the bandwidth therefore is quite narrow, the antenna goes off resonance, and not good for the PA, you could easily Zap the transistors. Because of over all losses using small antennas on LF the advantage of using litz is only marginal over convential 2- 3 mil insulated wire. de Mal/G3KEV > > > > > >