Thrane&Thrane TT-3000LRIT mini-C, Руководство по установке, Страница: 15 / 35

TT-3000LRIT mini-C Installation Manual
Figure 4 Vertical and Horizontal adjustable pole mount
3.1.2 A
NTENNA
M
OUNTING
C
ONDITIONS
When installing the TT-3026M easyTrack, find a location that is as
free as possible from obstructions. Also maintain a certain distance to
other antennas, especially radar installations. Normally the best place
for the antenna would be above radar scanning antennas. The following
safe distances should be maintained:
Distance to HF antennas > 5 meter
Distance to VHF antennas > 4 meter
Distance to other Inmarsat transceiver > 0.5 meter
Distance to magnetic compass > 0.3 meter
Table 1 Antenna Safe Distance
The antenna is designed to provide satellite coverage even when the
vessel has pitch and roll movements up to 15°. To maintain this
coverage the antenna should be free from obstructions in the area down
to 15° below the horizon (see Figure 5). Since this may not be possible
in the fore and aft directions of the vessel, the clear area can be reduced
to 5° below the horizon in the fore and aft directions and 15° below the
horizon in the port and starboard directions. Any compromise in this
recommendation could degrade performance.
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