Return-Path: Received: from rly-df11.mx.aol.com (rly-df11.mail.aol.com [172.19.156.24]) by air-df01.mail.aol.com (v126.13) with ESMTP id MAILINDF014-5894b16b94f292; Wed, 02 Dec 2009 14:00:40 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df11.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDF112-5894b16b94f292; Wed, 02 Dec 2009 14:00:33 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NFuQK-0006qF-JR for rs_out_1@blacksheep.org; Wed, 02 Dec 2009 18:59:36 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NFuQK-0006q6-4j for rsgb_lf_group@blacksheep.org; Wed, 02 Dec 2009 18:59:36 +0000 Received: from out1.ip08ir2.opaltelecom.net ([62.24.128.244]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NFuQI-0007WH-Dy for rsgb_lf_group@blacksheep.org; Wed, 02 Dec 2009 18:59:36 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApsEAJNHFktOlANV/2dsb2JhbACEScJTkHqBL4IvUwQ X-IronPort-AV: E=Sophos;i="4.47,329,1257120000"; d="scan'208";a="273842287" Received: from unknown (HELO xphd97xgq27nyf) ([78.148.3.85]) by out1.ip08ir2.opaltelecom.net with SMTP; 02 Dec 2009 18:59:28 +0000 Message-ID: <002701ca7381$9212ee10$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <38A51B74B884D74083D7950AD0DD85E828AAF4@File-Server-HST.hst.e-technik.tu-darmstadt.de> <4B16987B.9000002@usa.net> <000d01ca7373$e4baa170$0401a8c0@xphd97xgq27nyf> <38F4A9873A5B474DB6FB337B1B69ABA11CED86C60D@HERMES8.ds.leeds.ac.uk> Date: Wed, 2 Dec 2009 18:59:26 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Results of optimising an active antenna Content-Type: text/plain; charset="UTF-8" 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-IP: 193.82.116.20 Chris The Decca RX system had a cylinder probe similar to the beer keg., Reduce the C by raising it a few metres higher from deck. C is then measured in half Jars mal/g3kev ----- Original Message ----- From: "Chris Trayner" To: Sent: Wednesday, December 02, 2009 5:27 PM Subject: RE: LF: Results of optimising an active antenna > Hi Mal, > > > Use an aluminium beer keg as the probe mounted a few metres above ground. > g3kev > > With the capacitance to earth measured in Jars. > > 73, > Chris G4OKW > > ----------------------- > Dr Chris Trayner > School of Electronic & Electrical Engineering, > The University of Leeds, > Leeds LS2 9JT, United Kingdom > Tel: +44 113 34 32053 > Fax: +44 113 34 32032 > >