Return-Path: Received: from mtain-dc05.r1000.mx.aol.com (mtain-dc05.r1000.mx.aol.com [172.29.64.133]) by air-de08.mail.aol.com (v127_r1.1) with ESMTP id MAILINDE084-5ec14baf2b7c12; Sun, 28 Mar 2010 06:12:12 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dc05.r1000.mx.aol.com (Internet Inbound) with ESMTP id D589D38000085; Sun, 28 Mar 2010 06:12:10 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NvpSH-0000go-3t for rs_out_1@blacksheep.org; Sun, 28 Mar 2010 11:10:53 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NvpSG-0000gf-Or for rsgb_lf_group@blacksheep.org; Sun, 28 Mar 2010 11:10:52 +0100 Received: from mk-outboundfilter-6.mail.uk.tiscali.com ([212.74.114.14]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NvpSE-00071g-M0 for rsgb_lf_group@blacksheep.org; Sun, 28 Mar 2010 11:10:52 +0100 X-Trace: 194886409/mk-outboundfilter-6.mail.uk.tiscali.com/PIPEX/$PIPEX-ACCEPTED/pipex-temporary-group/79.71.204.120/None/m0afj@dsl.pipex.com X-SBRS: None X-RemoteIP: 79.71.204.120 X-IP-MAIL-FROM: m0afj@dsl.pipex.com X-SMTP-AUTH: X-Originating-Country: GB/UNITED KINGDOM X-MUA: Thunderbird 2.0.0.24 (Windows/20100228) X-IP-BHB: Once X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgwCABLIrktPR8x4/2dsb2JhbAAHjzqDVcRlhQEE X-IronPort-AV: E=Sophos;i="4.51,321,1267401600"; d="scan'208";a="194886409" X-IP-Direction: IN Received: from 79-71-204-120.dynamic.dsl.as9105.com (HELO [10.0.0.10]) ([79.71.204.120]) by smtp.pipex.tiscali.co.uk with ESMTP; 28 Mar 2010 11:10:44 +0100 Message-ID: <4BAF2B2D.1010300@dsl.pipex.com> Date: Sun, 28 Mar 2010 11:10:53 +0100 From: tim hague User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Antenna Matching 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: 3039ac1d40854baf2b7a0d57 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) I'm just about to apply for my 500kHz NoV, I've got around 100W of Tx power available and I'm looking for some information on antenna matching, my Tx antenna is just going to be a 132ft Marconi T with a 50ft vertical section, can I get away with just a series tuned matching cct or are the voltages across my matching C going to be very high, I have a wide spaced C approx 200 to 700pF. Thanks Tim M0AFJ