|
Dennis
About
Trees
Are
you saying you are getting penetration with just an antenna and no
amps
I know
a lot of guys are using amps
I
would really like to see sB go to a 100MW (20dB) radio, that would help
some
We
have a tremendous tree problem here in east Texas
thanks
Joe
K
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!
|
