Installation of the ADU
3-22
Chapter 3: Installation
98-150471-A02
3.3.3
To ground the ADU
The ADU must be grounded using the mounting bolts. If the ADU cannot or should not be
electrically connected directly to the mounting surface, you can use a separate grounding
cable to make the connection between the ADU and the common ground to which the
ACU is also connected. If grounding to the ship ground is impossible, for example if you
have a fibre glass hull, see
Alternative grounding for fibre glass hulls
To obtain a good ground connection, the metal underneath the head of
at least
one bolt
must be clean of insulating protective coating and a serrated washer should be used. After
tightening the bolts we recommend that you seal the area suitably in order to avoid
corrosion of the grounding point. Use stainless steel bolts and washers.
Optimum grounding is achieved by connecting the ground wire to the bolt marked in the
figure below.
For further information on grounding and RF protection see
Figure 3-21: ADU, bolt for optimum grounding
Bolt for
best grounding
SAILOR900HP.book Page 22 Monday, July 18, 2016 12:44 PM
