4
INSTALLING SOFTWARE
AND LOCATING THE SATELLITE
Before you can install the antenna, you must select an installation site. Before you can select an installation site, you must determine
the direction you will aim the antenna. You determine that direction by installing the software.
The satellite is located approximately 22,300 miles in geostationary orbit above the equator. The satellite travels above Earth’s equa-
tor from west to east at a speed matching that of Earth’s rotation, thus appearing stationary in relation to the Earth’s surface. To aim
the antenna at the satellite, you need to know the azimuth, elevation, and polarization angles. As shown in the figures below, you set
the antenna to the correct azimuth angle by turning it from side to side, and set the elevation by tilting the antenna up or down. You
set the polarization by rotating the antenna dish. The polarization setting rotates the antenna to the correct orientation for your geo-
graphic location. This varies from one part of the country to another and is different for different satellites. Antenna polarization is
positive in the eastern United States and negative in the western United States. Remember that it is important to pay attention to pos-
itive (+) and negative (-) signs when recording and using pointing parameters.
Before you install the antenna, the satellite modem receiver and software must be installed. To install the software, see the Start Here
installation guide for specific instructions. After you install the modem and software, run the software program. It will take you to an
Antenna Pointing screen, where you will be asked to enter your location or zip code. The software will provide the azimuth, eleva-
tion, and polarization angles. Write them below. The pictures below will help you visualize these terms.
Elevation:
Azimuth:
Polarization:
Elevation Down
Azimuth Left
Polarization
Negative
Elevation Up
Azimuth Right
Polarization
Positive