10
V110 – Marine Satellite Communication System
Antenna Unit
15°
Obstacle
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 15
degrees above the antenna. Any
obstacles can prevent the antenna
from transmitting and receiving
the satellite signal.
Do not install the antenna near by the radar especially on the same
plane as their energy levels may overload the antenna front-end circuits.
It is recommended to position the antenna at least 4 feet (1.2m) above
or below the level of the radar and minimum of 15 feet (4.6m) away
from the high power short wave radars.
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.
Figure 7. Elevation Limit of Obstacles
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