Return-Path: Received: from rly-dc05.mx.aol.com (rly-dc05.mail.aol.com [172.19.136.34]) by air-dc05.mail.aol.com (v126.13) with ESMTP id MAILINDC054-b204b18078d143; Thu, 03 Dec 2009 13:46:49 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dc05.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDC054-b204b18078d143; Thu, 03 Dec 2009 13:46:39 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NGGgQ-0003Ul-60 for rs_out_1@blacksheep.org; Thu, 03 Dec 2009 18:45:42 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NGGgP-0003Uc-Q4 for rsgb_lf_group@blacksheep.org; Thu, 03 Dec 2009 18:45:41 +0000 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NGGgP-0007VL-9L for rsgb_lf_group@blacksheep.org; Thu, 03 Dec 2009 18:45:41 +0000 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 482C251C00C; Thu, 3 Dec 2009 19:45:32 +0100 (CET) Received: from webmail6.cc.kuleuven.be (webmail6.cc.kuleuven.be [134.58.242.53]) by smtps02.kuleuven.be (Postfix) with ESMTP id 45535F3862; Thu, 3 Dec 2009 19:45:32 +0100 (CET) Received: by webmail6.cc.kuleuven.be (Postfix, from userid 48) id 004C218056; Thu, 3 Dec 2009 19:45:31 +0100 (CET) Received: from 204.148-182-91.adsl-dyn.isp.belgacom.be (204.148-182-91.adsl-dyn.isp.belgacom.be [91.182.148.204]) by webmail6.kuleuven.be (Horde MIME library) with HTTP; Thu, 03 Dec 2009 19:45:31 +0100 Message-ID: <20091203194531.or926chzk844g4k8@webmail6.kuleuven.be> Date: Thu, 03 Dec 2009 19:45:31 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" , Roelof Bakker References: <38A51B74B884D74083D7950AD0DD85E828AAF4@File-Server-HST.hst.e-technik.tu-darmstadt.de> <4B16987B.9000002@usa.net> <4B179DE6.3050608@usa.net> In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline User-Agent: Internet Messaging Program (IMP) H3 (4.1.2) X-Originating-IP: 91.182.148.204 X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Karma: unknown: 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; DelSp="Yes"; 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-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Roelof, I cannot agree, a Belgian beer can will provide at least 10dB better SNR ;-) Now serious: I have been thinking about a simple but good RX antenna for LF, MF and the lower HF range and you mini-whip seems the right solution. But will the preamp survive when pumping a few 100W into my 500kHz TX antenna (lazy-L) that will be only 25m away ? 73, Rik ON7YD - OR7T Quoting Roelof Bakker : > Hello Alberto, > > I am not much in beer myself, but there seems to be a famous Dutch brand, > that I can recommend! > > 73, > Roelof, pa0rdt > >