Things to remember when doing trees.....
1. GROUNDING, GROUNDING, GROUNDING. Bring at least a #8 or #6 copper
ground from the antenna mount down to the ground and drive two 8' ground
rods 6-10' apart at the base of the tree and attach to them. To comply with
NEC requirements, run a #6 wire from those rods to the main electrical
service ground to bond them together.
2. Use a mount designed for the purpose. Ronard makes one for mounting to
the side of the tree:
http://www.ronard.com/tree_adjust.html
3. Use SHIELDED Cat5....we prefer the stuff from Graybar that is flooded
and double jacketed....flooded cat5, pvc insulation, alluminum shield with
flooding (icky pick), outer layer of PVC.
4. We bond the shield of the cat5 to the bracket and ground wire at the
top, and again where it leaves the tree at the bottom, and lastly where it
attaches to the surge protector at the building entrance.
5. Do yourself a favor and run 1/2 or 3/4" PVC conduit from the tree to the
building if you are going to bury the cat5 and ground wire--makes changes
later a lot easier. You can also go overhead with a steel carrier wire and
zip tie the cables to it with UV resistant tie wraps (the black ones).
6. Run in a screw eye about every 4' on the way down the tree and attach
the ground and cat5 with black tie wraps to prevent the cable from whipping
against the tree in wind.
7. When mounting the antenna to the side of the tree
a. Pick a spot where there are not a lot of limbs
b. Trim enough of the limbs away so you are not back in 6 months to
trim them out of the path
8. Use a VERY GOOD surge supressor on the building entrance....for cat5 POE
we prefer the Motorola Canopy available from Electrocomm and Tessco.
9. Allow 2-3 times the hours you estimate to complete the job....and if you
are going higher than 20-30 feet I STRONGLY reccomend hiring an arborist to
do the install....preassemble the antenna and radio and cat5 and ground wire
on the ground so all he has to do is pull it up with a rope, lag it to the
tree and align the antenna.
10. Our preferred tree is fir or cedar....don't have pines here but try and
stay away from leafy trees.
JH
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 19, 2003 10:57 AM
Subject: Trees (was Re: [smartBridges] how would you handle this situation?)
> Anyone doing installs in trees? I have quite a few people who live in
valleys
> and could benefit from a tree installation. Any suggestions?
>
> TIM
>
> Quoting John Hokenson <[EMAIL PROTECTED]>:
>
> > If the tree is on their property, why not just put an outdoor Airbridge
in
> > the tree, then feed it with a router to isolate the lan from you.
> >
> > JH
> >
>
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