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Bill,
Thanks for the info.
Just a FYI, wiith a 14db Sector from Maxrad I shot
though dense trees (not above but though) for 1/4 of a mile and still could
penitrate the basement concrete walls.
The trees are mostly oaks around 50-60 foot plus
heavy coverage. You can see about 30 feet into the woods from this
location before all the leaves and such block your view.
Dennis
----- Original Message -----
Sent: Sunday, July 27, 2003 8:57 AM
Subject: Re: [smartBridges] Coverage
areas
Dennis,
RF is a funny thing.... Trees - What
kind? See 2.4 Ghz travels though things and some things it
doesn't. I have had some success shooting through red and white
pines. The density is key. How many trees? How do you
measure or describe? There is a figure out there that says that you lose
.35 db for every meter of foliage you pass through. I think this is just
a ball park statement. If this statement was coupled with the particular
tree type found around the globe it would be a much more useful tool.
Possibly as a group (organized) we could test certain applications and then
develop our own figure for sending signal through foliage, but if you think
about that the outcome would be as vague as the .35 db statement above or have
so many variable attached it may render it useless.
Take this
scenario. You learn how to shoot darts at a dart board. Soon you
find yourself hitting a bulls eye each time. Someone asks you how you do
it. You reply,"I don't know, I just practised a lot. I throw and it gets
there".
You need to make tests in those areas and simply figure this
one out on your own. When on the roof you need to move around until you
find the sweet spot. Then remember if you are in an area where the
leaves fall off the trees, be careful to take your positioning into
account. If you are setting up without leaves, look at the branch
formations. Look for the holes or you'll be back next spring to move
that antenna.
Consider yourself lucky to have 500 homes in a 2 mile
area. Most of my repeater locations generally have 200 + cows in that
same area!
The answer is time and experience!
At 12:00 AM
7/27/2003 -0500, you wrote:
Question..
One locaiton
that I am intrested in providing service, is mostly trees. In
otherwords, everywhere around has trees other than backyards or roads.
Now, my antenna would be above these trees and I do get a good Visual
coverage from Radio Mobile with a decent tower. How does that
translate to customers?
I have
about 500 homes within 2 miles of this tower, everything from moble homes to
some nice subdivisons. But again, unless they were in the way of
buliding the homes, most have tree cover. I have heard mixed responce
about the penterating power of this signal.
Dennis
Bill Flood
AirRunner Networks LLC --- We make the web
fast!
If you get tired of the wait call
715-443-3700!
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