Return-Path: Received: (qmail 572 invoked from network); 31 Oct 2001 15:17:16 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 31 Oct 2001 15:17:16 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 21831 invoked from network); 31 Oct 2001 15:14:50 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 31 Oct 2001 15:14:50 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 15ywxT-0004sF-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 31 Oct 2001 15:07:11 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from bob.dera.gov.uk ([192.5.29.90]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 15ywxS-0004sA-00 for rsgb_lf_group@blacksheep.org; Wed, 31 Oct 2001 15:07:10 +0000 Received: by bob.dera.gov.uk; (8.8.8/1.3/10May95) id PAA08237; Wed, 31 Oct 2001 15:14:29 GMT Received: (qmail 8096 invoked from network); 31 Oct 2001 15:58:29 -0000 Received: from gauntlet.mail.dstl.gov.uk (192.168.9.10) by baton.dstl.gov.uk with SMTP; 31 Oct 2001 15:58:29 -0000 Received: by gauntlet.mail.dstl.gov.uk; id PAA14836; Wed, 31 Oct 2001 15:34:19 GMT Received: from unknown(172.17.128.171) by gauntlet.mail.dstl.gov.uk via smap (3.2) id xma014825; Wed, 31 Oct 01 15:33:55 GMT Received: from FRN-MAIL-R3.dstl.gov.uk (unverified) by mailguard.dstl.gov.uk (Content Technologies SMTPRS 4.1.5) with ESMTP id for ; Wed, 31 Oct 2001 15:09:36 +0000 Received: by frn-mail-r3.dstl.gov.uk with Internet Mail Service (5.5.2650.21) id ; Wed, 31 Oct 2001 15:05:37 -0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D55C60F@PDW-MAIL-R1> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Subject: RE: LF: Aerial conundrum.... Date: Wed, 31 Oct 2001 15:05:33 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset=iso-8859-1; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Just a thought .. Place any small LF antenna located on very dry, low conductivity ground such as desert or non conductive rock with no trees etc nearby. With a good groundplane installed of thick copper wire out to several times the maximum dimension of the antenna, then won't the losses be only those due to the copper and loading coil ? In other words, consider the grounplane and antenna together as one entity and have no other lossy materials nearby. Could this contribute to the apparent reported sucess of the CFA when used in desert - not that the CFA was good, just that the conventional vertical it was tested against was poor. Andy G4JNT -- The Information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful.