Return-Path: Received: (qmail 2011 invoked from network); 28 Jan 2002 22:34:20 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 28 Jan 2002 22:34:20 -0000 Received: (qmail 26476 invoked from network); 28 Jan 2002 22:34:22 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 28 Jan 2002 22:34:22 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16VKEc-0000lj-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 28 Jan 2002 22:26:42 +0000 Received: from d12lmsgate-3.de.ibm.com ([195.212.91.201]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16VKEa-0000le-00 for rsgb_lf_group@blacksheep.org; Mon, 28 Jan 2002 22:26:40 +0000 Received: from d12relay02.de.ibm.com (d12relay02.de.ibm.com [9.165.215.23]) by d12lmsgate-3.de.ibm.com (1.0.0) with ESMTP id XAA16884 for ; Mon, 28 Jan 2002 23:25:10 +0100 Received: from usa.net (ss8.bld.socks.ibm.com [9.14.4.73]) by d12relay02.de.ibm.com (8.11.1m3/NCO v5.01) with ESMTP id g0SMQI173350 for ; Mon, 28 Jan 2002 23:26:29 +0100 Message-ID: <3C55CFB5.1AA9C9B9@usa.net> Date: Mon, 28 Jan 2002 23:24:53 +0100 From: "Alberto di Bene" Organization: None X-Mailer: Mozilla 4.7 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: Please give us some signals References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: DL4YHF@aol.com wrote: > As we all desperately seeking for the ultimate miracle antenna, couldn't you > convince the EH guy to offer his wonder thing for a bargain price to the LF > community ? Hi Wolf and the group, I asked those guys what their computations would give for an EH antenna for 137 kHz... The answer was that the diameter would have to be a bit less than one meter, but the length around 17 meters .... this for a computed (by them) efficiency of greater than 90 %... I imagine what my neighbours would think of me should I erect such a monster in my backyard... so, even if the EH antenna were a serious thing, that would not be a viable solution for many. 73 Alberto I2PHD