98-148248-C C-1
Appendix C
CCCC
Ground and RF protection C
This appendix has the following sections:
• Why is a ground connection required?
• Recommendations
• Alternative ground for steel hulls
• Alternative ground for aluminum hulls
• Alternative ground for fibre glass hulls
• Separate ground cable
• RF interference
• Jumper cable for grounding
C.1 Why is a ground connection required?
You must ground the SAILOR 600 VSAT Ka system for at least two reasons:
• Safety: Lightning protection of persons and equipment.
• Protection: ESD (Electro Static Discharge) protection of equipment.
C.1.1 Safety
A ground connection of the system is required for safety reasons. In the event of a
lightning strike at the ADU a proper ground connection of the system will provide a low
resistance path to divert the strike discharge to seawater.
C.1.2 ESD Protection
The ESD protection circuits in the ACU rely on proper grounding of the system in order to
work properly. Otherwise sensitive circuits within the ACU might be damaged due to ESD
when you are handling the equipment.
C.2 Recommendations
C.2.1 To ground the ACU
To ground the ACU do as follows:
1. Ground the ACU to the ship/hull. For this purpose you may use a short ADU cable and a
grounding kit.
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