[TowerTalk] 160M Wire Antenna
Tom Rauch
W8JI@contesting.com
Tue, 25 Apr 2000 10:32:15 -0400
> Are you saying that a "W" shape is preferable to an inverted "V" or a
> drooping dipole because keeping the ends high will contribute to a more
> directive pattern? I'm getting closer to putting up my 300 foot doublet
> and am trying to decide what tasks to assign to which trees!
All I am saying is when the ends of the antenna are placed near
the lossy media, losses increase. Because of that, I try to make
my Inverted V dipoles as flat as I can and I especially try to keep
the higher current areas as un-bent and high as possible.
I was corrected on this reflector a year or so ago when I failed to
give importance to the very low ends hurting efficiency from ground
losses. As I recall, people were discussing the pro's and con's of
Inverted V vs regular dipoles and the consensus was Inverted V
dipoles are great way up in the air, but not with the ends down in
all the clutter and near earth.
I tend to think in terms of high antennas without a sharp apex angle.
73, Tom W8JI
w8ji@contesting.com
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm