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Old May 23rd 04, 02:23 PM
Frank Gilliland
 
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In 6_Wrc.8907$af3.502893@attbi_s51, "Jim noname"
wrote:

I was thinking about trying a inverted v in the backyard attached to a
tree. I was going to make some kind of wooden insulator for the middle and
screw that into a tree as high up as I can get on a ladder.

I have a 4 foot drop or so on the back of the house compared to the front.
All my trees are in the back yard. Its sort of like a mini forest. Would a
inverted V still perform well if the top wasnt above my house? I have vinyl
siding so maybe I would be better off just keeping the antenna indoors?

thanks



Not much point in putting up an outside antenna if you can't get it in
the air. Like Mopar suggested, use a sling-shot and a fishing weight
to get it as high as you can. Don't worry about the shape so much as
the height. You won't be able to trim the elements after it's in the
tree so you will need a tuner in the shack. You can get a cheap MFJ
for about $20 that will work just fine. And since you are putting it
in the trees, impedance isn't going to be anywhere near what you might
predict, which is another reason to use the tuner. Also, I suggest
using balanced twinlead instead of coax for your transmission line
because it's cheaper, because the antenna system will be easier to
tune, and because RF grounding at the radio is not as important as
when the transmission line is unbalanced. Just don't forget a good
lightning ground!





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