Return-Path: Received: (qmail 22131 invoked from network); 15 Mar 2000 20:52:37 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by grants.core.plus.net.uk with SMTP; 15 Mar 2000 20:52:37 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12VKRp-0005uv-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 15 Mar 2000 20:31:17 +0000 Received: from ds-img-1.compuserve.com ([149.174.206.134] helo=spdmgaaa.compuserve.com) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12VKRn-0005uq-00 for rsgb_lf_group@blacksheep.org; Wed, 15 Mar 2000 20:31:15 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (from mailgate@localhost) by spdmgaaa.compuserve.com (8.9.3/8.9.3/SUN-1.9) id PAA01488 for rsgb_lf_group@blacksheep.org; Wed, 15 Mar 2000 15:31:02 -0500 (EST) Date: Wed, 15 Mar 2000 15:24:58 -0500 From: "Howard Aspinall" <100646.144@compuserve.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Balloon flying To: rsgb_lf_group@blacksheep.org Message-ID: <200003151529_MC2-9D30-24D1@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Greeting I have used balloon borne aerials on 160m in the past, and anyone contemplating doing so is advised to consult with the Civil Aviation Authority first. There were, and probably still are rules regarding the use of tethered balloons over a specific height. I can't remember what that height was, but if it is exceeded the rules have to be observed, and include things like providing lights and notifying the CAA. No doubt also it goes without saying that one can easily get a very high static build up on large verticals which are not electrically connected to a good earth, so steps are needed to protect the equipment, and operators from these. On a more light hearted note, on one instance in the past when a group of us was out portable with a 160m half wave vertical supported by a met balloon filled with helium, we observed a number of local officers of the law converging on our site very warily. It transpired a local farmer had reported seeing a UFO (the balloon), and the officers concerned were worried about walking into a strange encounter and being "beamed up". All ended well, but there could be some merit in keeping the local constabulary informed of such experiments. 73..Howard/G3RXH