Recommendations
B-2
Appendix B: Ground and RF protection
98-146706-A
B.2
Recommendations
B.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.
2. 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.
To extend 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 ensure 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
Do as follows:
1. Connect the foil to the hull by plenty of screws or hard–soldering.
Note
The foil must be at least 0.1 mm thick.
SAILOR900Ka-IM-98-146706.book Page 2 Thursday, July 16, 2015 11:07 AM
