Return-Path: Received: (qmail 142 invoked from network); 10 May 2001 22:50:44 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 10 May 2001 22:50:44 -0000 Received: (qmail 26320 invoked from network); 10 May 2001 22:50:11 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 10 May 2001 22:50:11 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14xz7w-0002oB-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 10 May 2001 23:41:44 +0100 Received: from mta1-rme.xtra.co.nz ([203.96.92.1]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14xz7v-0002o6-00 for rsgb_lf_group@blacksheep.org; Thu, 10 May 2001 23:41:43 +0100 Received: from rvernall ([202.27.181.42]) by mta1-rme.xtra.co.nz with SMTP id <20010510224036.XAAO2184114.mta1-rme.xtra.co.nz@rvernall> for ; Fri, 11 May 2001 10:40:36 +1200 Message-ID: <004f01c0d9a2$3334c6c0$2cb21bca@rvernall> From: "Vernall" To: rsgb_lf_group@blacksheep.org References: <3.0.1.16.20010510084513.2c6f9b82@mail.cc.kuleuven.ac.be> Subject: LF: And a further correction Date: Fri, 11 May 2001 10:39:32 +1200 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: Further to the item I have recently sent, I have since realised that the suggestion of observing two ammeters may not show different peaking conditions, as the reactive current in the stray capacitance (current Q) may not vary much over the band of testing, whereas the radiating current (current I) will rise sharply and have a resonant "nose" (for any decent high Q antenna). This observation of currents I and I+Q are likely to show the same tracking across resonance. Finding out the phase information of interest does need a dual trace oscilloscope or a vector voltmeter. 73, Bob