Return-Path: Received: from mtain-mj09.r1000.mx.aol.com (mtain-mj09.r1000.mail.aol.com [172.21.164.93]) by air-da05.mail.aol.com (v127_r1.1) with ESMTP id MAILINDA052-86154b9779cf122; Wed, 10 Mar 2010 05:51:59 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mj09.r1000.mx.aol.com (Internet Inbound) with ESMTP id BF1BF380000FD; Wed, 10 Mar 2010 05:51:57 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NpJUl-0001I7-Dw for rs_out_1@blacksheep.org; Wed, 10 Mar 2010 10:50:31 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NpJUl-0001Hy-1C for rsgb_lf_group@blacksheep.org; Wed, 10 Mar 2010 10:50:31 +0000 Received: from mail-gy0-f171.google.com ([209.85.160.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NpJUi-0001sY-Ac for rsgb_lf_group@blacksheep.org; Wed, 10 Mar 2010 10:50:31 +0000 Received: by gyh20 with SMTP id 20so2070800gyh.16 for ; Wed, 10 Mar 2010 02:50:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=YdgDtnyCFXjz4lIKiFIqu6WxKirHZjgb8H3e6A6JSP0=; b=LdlQYyTtlVTecIHsBwgClVdlPzsgejK1vzU75nOTRjm3UByUVqEY+8j3OXYlp/lQRe s7dnlVY/9qm61i5tOeGHb3TK1FaKv+I2TVtB/UWGZO8huEJykmNthuaTL2zB1mtKLMtK drSNHIQkSTynguR77DVIp3/yeJ5CDW/fCpBlA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=PfglKcfWulIXAD8uTQp8Ycf8bi8FrElcpVpzQVl7VBCvdhiqtKVW2fRG1ciwhZvngw bpJLoprR0CbGI0A1DVhi3J+dpBWJkfQo4XREldaqoqgfbgvltYt8ZAB2nDUOXtoaf++f KwekP0N0yYklvLpGh899f8+zSYU09GLH867l8= MIME-Version: 1.0 Received: by 10.91.63.38 with SMTP id q38mr1368593agk.108.1268218218412; Wed, 10 Mar 2010 02:50:18 -0800 (PST) In-Reply-To: References: Date: Wed, 10 Mar 2010 10:50:18 +0000 Message-ID: <9e6eddd01003100250w78752608i30b3d773ad2ac68c@mail.gmail.com> From: Dominic Baines To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: KITE ANT Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m261.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039400c89b24b9779cd7967 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Jean-Louis, In UK 60m is the flying limit and 30m near an airport but I think you'd have to be seriously daft to fly a kite near an airport anyway. You can fly higher too.... for permission to exceed the limits stated above you are required to complete an application form. Details from Airspace Utilisation Section Directorate of Airspace Policy Civil Aviation Authority K1 45-59 Kingsway London WC2B 6TE Direct Dial: 020 7453 6599 or 6585 Fax: 020 7453 6593 A high value bleed resistor with a thick conductor connector to a ground rod should always be attached from any down lead before entering a vehicle or property etc. Especially in Summer and if on a hill make sure you don't emulate Franklin's proposed experiments! 72 Dom M1KTA On 10 March 2010 08:16, wrote: > Hi all > > May I ask you to pay some attention on the three following issues relate= d to balloon/kite aerials ? > > - using "high" altitude kites or balloons is often subject to a formal= authorization (at least in France, and specially if you expect to use the= aerial close to an airfield) > > - even when weather is very good, very high DC voltages (many =A0kV) can= appear (from natural local electric field) on the antenna wire. DC ground= ing of the wire is therefore mandatory > > - avoid any AC HV lines (or schools, or roads, or irritable neighbours)= in the vicinity of your experiment area. > > Regards > > Jean-Louis F6AGR > >