Lars Thrane LT-3100, Руководство пользователя и инструкция по установке

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LT-3100 User & Installation Manual Rev. 1.06 Installation and Mounting
Lars Thrane A/S www.thrane.eu Page 16 of 155
The LT-3130 Antenna Unit must be mounted with free line of sight to the Iridium satellites for best possible
performance. The best location will typically be at the top of the lantern mast, where there are no
obstructions blocking the Iridium satellite link. The LT-3130 Antenna Unit is designed to maintain a
communication link to the Iridium satellites in all weather conditions, see Table 2.
NOTE : The LT-3130 Antenna Unit must be mounted with a -22° clear view angle below the
horizontal plan (port and starboard directions), where no obstructions must block the
Iridium satellite signal, to maintain full functionality under extreme roll conditions. Also,
the upper hemisphere must also be without any blockages to the Iridium satellites.
Extreme Ship Motion Values & Clear View Angles Below the Horizontal Plan
Motion
Direction
Maximum
Amplitude
Iridium Satellite
Acq.
Clear View Angle Below the
Horizontal Plan
Roll ±30° +8° -22°
Pitch ±10° +8° -2°
Table 2: LT-3130 AU Roll and Pitch Clear View Angles (below the horizontal plan)
Figure 16: LT-3130 AU Installation (roll: clear view angle below the horizontal plan)