Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh02.r1000.mx.aol.com (Internet Inbound) with ESMTP id CC2E0380002A4; Sat, 16 Feb 2013 16:12:18 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U6p2W-0006F7-Bq for rs_out_1@blacksheep.org; Sat, 16 Feb 2013 21:11:20 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U6p2V-0006Ey-Vb for rsgb_lf_group@blacksheep.org; Sat, 16 Feb 2013 21:11:19 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1U6p2U-0008Nd-Dx for rsgb_lf_group@blacksheep.org; Sat, 16 Feb 2013 21:11:18 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id r1GLBH9V000774 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 16 Feb 2013 22:11:18 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id r1GLBCMm013906 for ; Sat, 16 Feb 2013 22:11:12 +0100 Message-ID: <511FF5F0.1080603@iup.uni-heidelberg.de> Date: Sat, 16 Feb 2013 22:11:12 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Am 16.02.2013 11:10, schrieb Clemens Paul: > [...] > The higher the *loaded circuit* Q the higher are the losses in all involved > components including the coil due to increasing circulating currents. > Given a certain circuit increasing the Q of its components always will > reduce overall losses of that circuit. > > 73 > Clemens > DL4RAJ [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [129.206.210.211 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 4ead635eadbaebfaa92cfec77deb715d Subject: Re: LF: Re: how to increase the Q of my loading coil? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d60d6511ff6316fff X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Am 16.02.2013 11:10, schrieb Clemens Paul: > [...] > The higher the *loaded circuit* Q the higher are the losses in all involved > components including the coil due to increasing circulating currents. > Given a certain circuit increasing the Q of its components always will > reduce overall losses of that circuit. > > 73 > Clemens > DL4RAJ ...however if the transmit power is kept constant, then the radiated power is higher, due to the higher currents through the radiation resistance. Thus the losses must be lower here. It is not a constant voltage source, at least Dimitris' class E PA isn't :-) So a high Q must be the goal, loaded or unloaded. 73, Stefan/DK7FC