Site Hardware Preparation
.18
Avanti Installation Manual 2.0
9. SITE ASSESSMENT AND SURVEY
9.3 USING
AN
INCLINOMETER
From the antenna installation location use an inclinometer to determine
whether clear line of sight can be obtained. To ascertain this look through the
compass part of the inclinometer with both eyes open and line the required
azimuth coordinate up with the crosshair in the view finder, once lined up
make a mental note of the point on the horizon that the crosshair sits.
Turn the inclinometer over to the elevation scale and again look through the
elevation lens and find the point on the horizon you had previously noted.
Once found tilt the inclinometer upwards until the elevation scale reads the
required number of degrees determined using www.dishpointer.com
.
You now have the exact position of the satellite, you should allow a margin on
this position of ± 3° on the azimuth and
–
3° on the elevation, this will ensure
you have completely clear line of sight to the satellite and there is sufficient
clearance for any tree growth, where fast growing trees are identified such
as conifers and poplars the elevation allowance should be increased to - 5° to
ensure sufficient clearance is continued in the future.
The position you have now identified in the sky should be clear along with
the allowance areas, if so the installation can go ahead from this antenna
installation location.
CAUTION
If there are any objects, trees, buildings in line of sight, an alternative installation location will need to be found.
