In a message dated 1/23/2007 11:33:46 A.M. Central America Standard ,
> Any guidelines for using trees?
> I have a cabin I use at about 7000' el with a clear North 180 degree shot
the ridgetop, there are too many trees to get much up, I am planning on
hauling my 2 el Steppir up to around 35' BETWEEN two trees. I will use a
tagline for "rotation". Since I can't get to the tops of these pine trees, I
think this is my best option.
> Any ideas, comments, things to watch for?
I top the tree and then mount a 1.5" water pipe vertically with a
horizontal piece welded near the top of the pipe for torque resistance. Two
screws on the horizontal piece and 2-3 on the vertical pipe and you're ready
The rotator is mast-mounted ala' TailTwister, etc. A tree-mount is for a
smaller - e.g. 3L tribander or so - antenna. I've installed bigger ones like
a KT34XA, but that's pushing it.
I use a tram technique to get the antenna up to the top of the tree.
With some timely tag line maneuvers you can pull the elements down towards you
and then the element ends towards the tree will clear the top branches and the
antenna will settle in position for attaching to the mast.
I use nails as cable stand-offs and attach them with tie wraps.
A tree mounted yagi requires more maintenance because of limb growth but
the antennas play like gangbusters since electrically they're floating in
The best parts are that the tree is free and they are unregulated for
antenna installations. If you've got one, use it!
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