Return-Path: Received: (qmail 27717 invoked from network); 19 Sep 1999 08:17:09 +0100 Received: from magnus.plus.net.uk (HELO magnus.force9.net) (195.166.128.27) by guiness.force9.net with SMTP; 19 Sep 1999 08:17:09 +0100 Received: (qmail 14844 invoked from network); 19 Sep 1999 07:15:16 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by magnus.plus.net.uk with SMTP; 19 Sep 1999 07:15:16 -0000 Content-Transfer-Encoding: 8bit Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 11Sau4-0001qP-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 19 Sep 1999 07:56:52 +0100 X-Priority: 3 Received: from ds9.sci.fi ([195.74.0.54]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 11Sau2-0001qK-00 for rsgb_lf_group@blacksheep.org; Sun, 19 Sep 1999 07:56:51 +0100 X-MSMail-Priority: Normal Received: from default (MMMDCCXIX.hdyn.saunalahti.fi [195.197.164.119]) by ds9.sci.fi (8.9.1/8.9.1) with SMTP id JAA09500 for ; Sun, 19 Sep 1999 09:57:11 +0300 (EET DST) Message-ID: <3.0.6.32.19990919095655.008001a0@mail.dlc.fi> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Sender: vaiski@mail.dlc.fi X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Sun, 19 Sep 1999 09:56:55 +0300 To: rsgb_lf_group@blacksheep.org From: =?iso-8859-1?Q?V=E4in=F6_Lehtoranta?= Subject: Re: LF: LF-antennas with top load In-reply-to: <37E3F920.73E4@xtra.co.nz> References: <001301bf01fb$d4224ce0$d796b38f@w8k3f0> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: LF Friends, Could anyone test calculate the antenna type with which we have done a lot of field work and measurements of all kind? Namely, 14 m tall Locator/NDB air navigation antenna operating on air navigation band around 300 kHz. I have personally flight and ground measured some 50 or 60 of them including determination of radiated power (EMRP). The antenna is top loaded with common 6 radial rods at the top with connecting wire. The loadind coil is in ATU cabinet along with a autotransformer. 73 de Vaino, OH2LX ---------------------------------------------------------- V.K.Lehtoranta, OH2LX, POBox 50, FIN-05401 Jokela, Finland ------ Tel: +358-9-4173965 ---- Fax: +358-9-4173961 ------ E-mail: vaiski@dlc.fi - alias: oh2lx@dlc.fi & oh2lx@sral.fi