To: | <topband@contesting.com> |
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Subject: | Re: Topband: Comparing antennas was: Re: 160m loaded tower |
From: | "James Wolf" <jbwolf@comcast.net> |
Date: | Wed, 18 Jan 2023 14:19:45 -0500 |
List-post: | <mailto:topband@contesting.com> |
It's quite possible that the addition of a beam at 60 ft. could cause capacity hat effect changing the current flow in the tower. It might be worth modeling this. Jim - KR9U >> I have a 100 ft tower with jk mid tri 40 on top. When shunt fed, it >> was pretty competitive on 160. Recently the antenna seems to be a few >> db weaker. The only change was adding another beam at 60ft. Could it >> have had an impact? Adding the beam only marginally affected the match. _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector |
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