Intellian GX100PM, Installation And Operation Manual

Page: 21 / 139

21
INSTALLING THE ANTENNA
Planning the Installation
Selection of Antenna Installation Site
Install the antenna in accordance with the following procedures to insure maximum
performance of the antenna.
The ideal antenna site has a clear view of the horizon or satellite all around. Please
be sure there are no obstacles within the EL range -20° to +115° from the center of
the antenna. Any obstacles can prevent the antenna from transmitting and receiving
the satellite signal.
The mounting platform should be rigid enough and not subjected to excessive
vibration. The movement of the antenna can be minimized by installing at the
center of the vessel. If these conditions can be only partially satisfied, find the best
compromised installation site between the various considerations.
Do not install the antenna near the radar especially on the same plane, as its energy
levels may overload the antenna front-end circuits. It is recommended to position
the antenna at least 4 feet (1.2 m) above or below the level of the radar and minimum
of 15 feet (4.6 m) away from the high power short wave radars.
Elevation limit
of obstacles
10
10
4.6m