Return-Path: Received: from rly-db09.mx.aol.com (rly-db09.mail.aol.com [172.19.130.84]) by air-db10.mail.aol.com (v121.4) with ESMTP id MAILINDB101-ae947a39e75d9; Fri, 01 Feb 2008 17:34:48 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-db09.mx.aol.com (v121.4) with ESMTP id MAILRELAYINDB097-ae947a39e75d9; Fri, 01 Feb 2008 17:34:30 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JL4Ry-0002QJ-Ri for rs_out_1@blacksheep.org; Fri, 01 Feb 2008 22:33:34 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JL4Ry-0002QA-Ce for rsgb_lf_group@blacksheep.org; Fri, 01 Feb 2008 22:33:34 +0000 Received: from smtp5.freeserve.com ([193.252.22.151]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JL4Rv-0003RC-EP for rsgb_lf_group@blacksheep.org; Fri, 01 Feb 2008 22:33:34 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3417.me.freeserve.com (SMTP Server) with ESMTP id 241C51C00085 for ; Fri, 1 Feb 2008 23:33:26 +0100 (CET) Received: from AGB (unknown [91.109.14.7]) by mwinf3417.me.freeserve.com (SMTP Server) with SMTP id DEC4E1C00084 for ; Fri, 1 Feb 2008 23:33:25 +0100 (CET) X-ME-UUID: 20080201223325912.DEC4E1C00084@mwinf3417.me.freeserve.com Message-ID: <004701c86522$7db95310$0300000a@AGB> From: "Graham" To: References: <020120082144.938.47A392BE0008FAB4000003AA22155754749C9D01CD05@comcast.net> Date: Fri, 1 Feb 2008 22:33:38 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Kevlar guy rope for radiating mast ? conductive ? Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit 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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n Ok Warren, Its the kevlar - carbon fiber - that i'm concerned about .. has it any dialectric properties in the hf spectrum ? I could do with geting hold of a lenght , see if it passes the microwave oven test ? When you say for antenna use , you mean as support rope / insulator / element configuration ? Ive got to drop the mast ( 2 x 20 ft alloy poles) and replace the top section , so want to re-guy it at the same time , the mast is on a insulted mount and also supports the wire antennas, G .. ----- Original Message ----- From: To: Sent: Friday, February 01, 2008 9:44 PM Subject: Re: LF: Kevlar guy rope for radiating mast ? conductive ? > Graham, > > Most kevlar rope for antenna use has an outer covering of Dacron for UV > protection so it will be non conductive. > However, I don't think its a good idea to guy the very top of a vertical > especially if high power is in use, particularly in rainy conditions. > > > -- > 73 Warren K2ORS > WD2XGJ 136-140kHz > WD2XSH/23 505-510kHz > WE2XEB/2 160-189kHz > WE2XGR/1 505-515kHz > > FN42hi > http://www.w4dex.com/wd2xgj.htm > > -------------- Original message ---------------------- > From: "Graham" >> Looking to replace the guy ropes on my vertical mast , the blue polyprop >> is >> showing signs of over exposure to the sun and starting to fray >> >> >> >> I'm wondering if the 'kevlar' type of ropes would be suited, as the mast >> is >> a radiating element ? >> >> >> >> But as far as I know, the rope conducts electrically, which would not be >> a >> good material to have in the saturation field of the element >> >> >> >> How conductive is the 'rope' ? is it just a leakage or a full low ohm >> situation ? >> >> >> >> Tnx - G .. >> >> >> > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1255 - Release Date: 2/1/2008 > 09:59 > >