COBHAM SAILOR 900 Ka, Руководство по установке

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Site preparation
98-146706-A Chapter 3: Installation 3-3
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
• Mast foundation and height
• Interference from radar, GPS 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 900 Ka 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 900 Ka system, the azimuth calibration provides the correct azimuth of the
ADU.
Painting the radome
Customers may wish to paint the radome in order to match the vessel’s colour. Cobham
SATCOM’s recommendation is that the radome should NOT be painted because it may
impact RF performance and may lead to over-heating, causing the antenna to go in safe
mode (switch off).
However, painting the radome will not void the general warranty regarding material and
workmanship etc. It is only the performance that cannot be guaranteed. Any paint used
must be non-metallic based.
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.
SAILOR900Ka-IM-98-146706.book Page 3 Thursday, July 16, 2015 11:07 AM