Return-Path: Received: (qmail 13180 invoked from network); 24 Jan 2001 16:28:35 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 24 Jan 2001 16:28:35 -0000 Received: (qmail 19362 invoked from network); 24 Jan 2001 16:31:21 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 24 Jan 2001 16:31:21 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14LSiS-00081p-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 24 Jan 2001 16:24:12 +0000 Received: from mail.cc.kuleuven.ac.be ([134.58.10.6]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14LSiR-00081k-00 for rsgb_lf_group@blacksheep.org; Wed, 24 Jan 2001 16:24:11 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail.cc.kuleuven.ac.be (8.9.3/8.9.0) with SMTP id RAA16986 for ; Wed, 24 Jan 2001 17:23:59 +0100 Message-ID: <3.0.1.16.20010124181501.2de715e4@mail.cc.kuleuven.ac.be> X-Sender: pb623250@mail.cc.kuleuven.ac.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Wed, 24 Jan 2001 18:15:01 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: Re: LF: Waterproof Loading Coil In-reply-to: <200101241049_MC2-C2EF-4C36@compuserve.com> 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: At 10:49 24/01/01 -0500, DK8KW wrote: >... I don't really understand why and how my own setup works ... a large >loading coil (3.8 mH) about 1/3 height up the mast .... in wind and rain >and snow, without any protection! I have to re-adjust my small variometer >in the shack (about 0.9 mH) if it is wet outside, but no problems with >flashovers or any other problems ... maybe it is worth a try ... Same here, a 2.2mH coil hanging at 14m height and a 0.8mH coil on a plastic box about 0.5m above ground. Both have no protection against wind, rain, hail, snow etc ... and survive for about 3 years now (keep fingers crossed). No problems with flashovers or tuning, thanks to the large loss resistance (abt. 120 Ohm in winter, abt 140 Ohm in summer). one of the few advantages of all the lossy green capacitors (brand : birch and oak) surrounding my antenna. 73, Rik ON7YD