Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md04.r1000.mx.aol.com (Internet Inbound) with ESMTP id B9ACA380000A6; Mon, 2 Jan 2012 15:04:11 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rho6E-0001JL-AW for rs_out_1@blacksheep.org; Mon, 02 Jan 2012 20:03:14 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rho6D-0001JC-ID for rsgb_lf_group@blacksheep.org; Mon, 02 Jan 2012 20:03:13 +0000 Received: from nm2.bt.bullet.mail.ukl.yahoo.com ([217.146.183.200]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Rho6C-0001vh-GT for rsgb_lf_group@blacksheep.org; Mon, 02 Jan 2012 20:03:13 +0000 Received: from [217.146.183.197] by nm2.bt.bullet.mail.ukl.yahoo.com with NNFMP; 02 Jan 2012 20:03:06 -0000 Received: from [217.146.183.206] by tm3.bt.bullet.mail.ukl.yahoo.com with NNFMP; 02 Jan 2012 20:03:06 -0000 Received: from [127.0.0.1] by omp1004.bt.mail.ukl.yahoo.com with NNFMP; 02 Jan 2012 20:03:06 -0000 X-Yahoo-Newman-Id: 769946.84484.bm@omp1004.bt.mail.ukl.yahoo.com Received: (qmail 25080 invoked from network); 2 Jan 2012 20:03:06 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=u0fJpfrfAFKJjy/SlA37i5AbO6tL/8noLfFRrLRR0WF/SM7GdLqPcMCICe86kE7Adh3hUb6hXpN93i5UX8DxnwDNSeXtjBmlfjOyhYNIQ3xXz5bDf39Th89SzsjKmJHHOnTESU9AzT5JyRyiTU8LiCOwd2ve0SEwOn640ff2Udc= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btopenworld.com; s=s1024; t=1325534586; bh=pWZw7wjfkAtJZo5W/P1LOtNgvvrd3+aCQe5fb6UDFrs=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=doH5PEbRTZQnl1MI+SKIJEw37RfnVFvnsiBnCXrFzDGu/ASZmcGmqvzrq1e4o8fEk/Z23tMKzlCyyCTmAwMYPKT/80OQFxV8qQk2lr0a7jQs+ItyfwnBcugwULQ0Xs1N77Ct7ITeOirEDCGVqkvuXflBKvwv/3aIpylCLFSt1r8= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: YdHxng8VM1km3ApQHlvmaEQdOnjSxZc81mhwbHHIgTmY8Yk V8Afw7ci5DRPbK5AQ.6Wmibu9BzOtT8quc6IbQ.o6KNxHUuO7_EJZ4w3yKuD AypLvdIRfcFYN04UkrrIzVO.5sHleKQ5ZhfRc4N0THv0LBnfhH2rwgYgl0lR qq.5QPCX6fsakw1zZCQ8P7oAugKU5t2bvUN2D6jRQOsyXhEB1kCwM9UvAHAG UyKGwJPR1WitOZ7HRFTJHl_2P4om33CJrVpsIKYHejvA0g1lhgqdjl2BTgEp 6UdPKS6l4Z9rAjcjtkjXOSJE7NuZFR5AL1jleMn8Q0R6qnFAD5P1IhLPJuc5 tsf6SzlJ1wxNZowb.LEj70xA7w6mUp6taWg6_w.DQOQ-- X-Yahoo-SMTP: Cxhli3eswBD1ozmtAojhjrja86kWx0Qm9tycD5QR1DKWrOLgjJcXkw-- Received: from JimPC (james.moritz@86.176.98.245 with login) by smtp820.mail.ird.yahoo.com with SMTP; 02 Jan 2012 20:03:06 +0000 GMT Message-ID: From: "James Moritz" To: References: <008301ccc97c$51d9fcf0$0401a8c0@xphd97xgq27nyf> In-Reply-To: <008301ccc97c$51d9fcf0$0401a8c0@xphd97xgq27nyf> Date: Mon, 2 Jan 2012 20:03:22 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,UNPARSEABLE_RELAY=0.001 Subject: LF: Re: Antennas Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-SCOLL-SCORE: 0:2:372192864:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d243.2 ; domain : btopenworld.com DKIM : fail x-aol-sid: 3039ac1d60584f020dbb0e72 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Dear Mal, LF Group, >When I was in the business some years ago on LF/MF Rhombics and V-Beams >were the norm >de mal/g3kev Since rhombic and vee designs usually end up at least a few wavelengths long, and more than half a wavelength high, an LF rhombic would be a truly gigantic structure. I don't believe masts high enough to support such an antenna have ever been built - can you give any examples? Cheers, Jim Moritz 73 de M0BMU