Grounding Recommendations
F-2
Appendix F: Grounding and RF protection
98-133966-G1
F.2
Grounding Recommendations
F.2.1
Grounding the ACU
The ACU should be grounded to the ship/hull. For this purpose you may
use a short ADU cable and a grounding kit. Further, the ACU must be
grounded at its grounding stud in order to ensure proper grounding if
the short ADU cable is disconnected. For further information, see
If you use the Extended cable support, make the ground connections
through the cable support. You may need to extend the ground plane
using copper foil, see the following section.
F..2.1.1
Extending the ground plane
In some cases it may not be possible to access the hull and at the same
time place the ACU in a suitable place. A way to insure good grounding
and at the same time make it possible to ground the coax cable - is to
extend the ship ground plane by means of copper foil. The maximum
length of the foil is determined by the width of the foil:
Copper foil 5 cm wide: Max 50 cm
Copper foil 10 cm wide: Max 100 cm
Copper foil 20 cm wide: Max 200 cm
Connect the foil to the hull by plenty of screws or hard–soldering. Run
the foil past the place where the short ADU cable is to be grounded and
mount a grounding kit on top of the foil. For details on the jumper cable
see
Note
The foil must be at least 0.1 mm thick.
Figure F-1: Extending the ground plane
Jumper cable
Cable to ADU
SAILOR900TM.book Page 2 Monday, September 16, 2013 11:01 AM
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