To: | "George Stewart (VK5ALS)" <ggstew@bigpond.net.au>,"Topband" <topband@contesting.com> |
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Subject: | Re: Topband: Tophat? Does it have to be at the top? |
From: | "Bob Tellefsen" <n6wg@comcast.net> |
Date: | Thu, 10 Jun 2004 09:22:21 -0700 |
List-post: | <mailto:topband@contesting.com> |
George My setup is similar to what you plan. I have a 50 ft vertical with sloping top loading wires. I modeled the antenna in EZNEC to find the best combination of top loading inductor and sloping wire length. If you add a top loading inductor, you can use shorter loading wires and have less cancellation. The optimum length is not critical, as there is a rather broad nose to the curve. This lets you put up whatever is most convenient within that portion of the curve. Good luck and 73 Bob N6WG _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband |
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