Hi Martin, A postscipt to our discussion. If you use that .075 inch dia Kevlar string with black plastic dogbone insulators, for example to tether the ends of an inverted V dipole, cover the Kevlar at the insulator with a bit of large OD small ID non-metallic tough flexible tubing. Otherwise the Kevlar saws through the insulator in no time. In theory, passing the Kevlar through the insulator a few times before tying off should also help. But both methods just postpone judgement day. I have used small stainless steel shackles in a bridle configuration with success, taping them so that they do not rotate a lot (plan view). Our winter temperatures are not low enough to make differential expansion an issue.
73, Geoff GM4ESD _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
