Return-Path: Received: (qmail 14877 invoked from network); 7 Oct 2002 23:20:56 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 7 Oct 2002 23:20:56 -0000 Received: (qmail 27580 invoked from network); 7 Oct 2002 23:21:08 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 7 Oct 2002 23:21:08 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 17yhB2-0002Gc-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 08 Oct 2002 00:20:40 +0100 Received: from [216.93.66.203] (helo=mail4.mx.voyager.net) by post.thorcom.com with esmtp (Exim 4.10) id 17yhB1-0002GT-00 for rsgb_lf_group@blacksheep.org; Tue, 08 Oct 2002 00:20:40 +0100 Received: from k6500 (d25.as3.mpls.mn.voyager.net [169.207.249.249] (may be forged)) by mail4.mx.voyager.net (8.11.6/8.10.2) with SMTP id g97NKcb58040 for ; Mon, 7 Oct 2002 19:20:38 -0400 (EDT) From: "WE0H" To: rsgb_lf_group@blacksheep.org Date: Mon, 7 Oct 2002 18:21:24 -0500 Message-ID: MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Importance: Normal In-reply-to: Subject: LF: re:RE: RE: Re:RE: LF Revival Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.0 required=5.0tests=IN_REP_TO,MAY_BE_FORGED,SPAM_PHRASE_00_01, USER_AGENT_OUTLOOKversion=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group And my loop survived 100 Mile per hour winds this summer. "Little value" huh, the author was a liar!!! Mike>WE0H http://www.we0h.us/lf.html -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Ashlock,William Sent: Monday, October 07, 2002 11:07 AM To: 'rsgb_lf_group@blacksheep.org' Subject: LF: RE: Re:RE: LF Revival Jim M, >I remain to be convinced about the benefits of loop TX antennas. >If you have the choice of a tuned wire 15m long in total , or a 15m by 15m loop, it is not >surprising that the latter is a better bet - it is a much bigger antenna, after all. Actually under 'ideal' site conditions such as an open field, free from the effect of trees, and where a good ground system can be installed, the top loaded vertical with similar overall dimensions beats the loop for radiation efficiency by 6db on average. Typical residential sites, however, are another story. In my home situation the same 6db favors the loop over the vertical - even for a #12ga loop wire. Additionally, I have found the loop is whole lot more rugged when it comes to extremes in wind, rain, ice and snow. What makes 'looping' even more fun, at least for me, is that this success stands in the face of so much negative text written about the TX loop. Renowned authors of antenna textbooks often state that the small loop (I.E.: <<1WL) is of little value for transmitting. Bill A