COBHAM SAILOR 100 GX Installation Manual

Site preparation
98-141779-G Chapter 3: Installation 3-3
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Installation
3.2 Site preparation
The following topics have to be considered when installing the ADU:
• General site considerations
• Obstructions (ADU shadowing)
• Blocking zones with azimuth and elevation
• Safe access to the ADU (radiation hazard)
• Ship motion and offset from the ship’s motion centre
• ADU mast design: Mast foundation and height
• Interference from radar, GPS, L-band and other transmitters
• Condensation, water intrusion and deposits
3.2.1 General site considerations
For optimum system performance, you must follow some guidelines on where to install or
mount the different components of the SAILOR 100 GX System.
1. Mount the ADU on stiffened structures with a minimum of exposure to vibrations.
You do not have to align the ADU with the bow-to-stern line of the ship. When configuring
the SAILOR 100 GX system, the azimuth calibration provides the correct azimuth of the
ADU.
3.2.1.1 Painting the radome
Customers may wish to paint the radome in order to match the vessel’s colour. Any paint
used must be non-metallic based. Painting the radome may impact RF performance and
may lead to over-heating, causing the antenna to go in safe mode (switch off).
Cobham SATCOM recommends that the radome should NOT be painted. Painting the
radome will not void the general warranty regarding material and workmanship etc. It is
only the performance that cannot be guaranteed.
3.2.1.2 Modifying the radome or using another radome
The SAILOR 100 GX antenna comes with a type-approved radome fitted from the factory.
This radome is specifically designed for a minimal loss of RF performance for this specific
antenna. Insertion loss reduces the available signal and decreases the effective radiated
power and G/T (the ability to receive a weak signal). Modifying the radome or using another
radome may increase the antenna side lobes, resulting in interference with other
communication systems and thereby void satellite operator approvals. Other electrical
effects on antenna performance of another radome, or of modifying the radome, include a
change in the antenna beam width and shifting of the antenna bore sight.
Important
It is recommended to mount the ADU in a location with as much 360° free
line of sight to the satellite as possible while making sure that the support
structure fulfills the requirements for the mast foundation.

COBHAM SAILOR 100 GX Specifications

General

Brand	COBHAM
Model	SAILOR 100 GX
Category	Marine Equipment
Language	English