Return-Path: Received: (qmail 5022 invoked from network); 12 May 2001 21:14:52 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 12 May 2001 21:14:52 -0000 Received: (qmail 10976 invoked from network); 12 May 2001 21:14:22 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 12 May 2001 21:14:22 -0000 X-Priority: 3 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14ygcB-0004qz-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 12 May 2001 22:07:51 +0100 X-MSMail-Priority: Normal Received: from anchor-post-33.mail.demon.net ([194.217.242.91]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14ygcA-0004qu-00 for rsgb_lf_group@blacksheep.org; Sat, 12 May 2001 22:07:50 +0100 Received: from alg.demon.co.uk ([194.222.171.80]) by anchor-post-33.mail.demon.net with esmtp (Exim 2.12 #1) id 14ygbd-0002PE-0X for rsgb_lf_group@blacksheep.org; Sat, 12 May 2001 22:07:18 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3AFDA68D.13370A2A@alg.demon.co.uk> Date: Sat, 12 May 2001 22:09:33 +0100 From: "Steve Rawlings" X-Mailer: Mozilla 4.6 [en-gb]C-CCK-MCD NetscapeOnline.co.uk (Win98; I) X-Accept-Language: en-GB,en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Measurement of antenna current References: <000801c0db1d$56d4e020$1a9901d4@g4jnt> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Andy G4JNT wrote: > Aluminium kitchen foil is much thinner than the skin depth at these > frequencies, so you are getting nowhere near the full screening effect. Many thanks for another clear description of what's actually going on - this time in relation to LF screening. Another precious Email, now added to my growing reference library :-) I'll repeat the tests with aluminium sheet - just as soon as I find some - and report back with the results. By the way, it was nice to work John G3CCH (RST 449) earlier today - the first time I've heard him in several weeks. PI4OSS was 579 a few minutes ago - but no QSO was possible using my 12 m vertical. Regards to all, Steve GW4ALG