COBHAM SAILOR 900 Ka, Руководство по установке

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Separate ground cable
B-12 Appendix B: Ground and RF protection 98-146706-A
B.6.2 Ground cable - connection
To mount the ground cable do as follows:
1. Mount the ground cable close to and parallel to the shielded coax cable thus minimizing
ground loop problems. If possible, route the coax cable and the ground cable in metal
conduits bonded to the hull or within a mast (depending on the actual installation).
2. Connect the ground cable at one of the mounting/grounding bolts on the ADU.
3. Use bolts and washers of stainless steel and seal the joint with protective coating to
avoid corrosion.
4. If the ADU is to be isolated from the mounting base, use shoulder bushings and washer,
see figure B-7, Isolation of the ADU from the mounting base on page B-12.
5. At the other end, connect the ground cable as described in To ground the ACU on
page B-2.
B.6.3 Isolation of the ADU from the mounting base
In cases where the ADU is to be isolated from the mounting base, do as follows:
1. Use shoulder bushings and washers (accessories) as illustrated below. Note that the
isolation must be implemented on all four mounting bolts (including the bolt securing
the ground cable).
2. Connect the ground cable at one of the mounting/grounding bolts on the ADU as
illustrated below.
Figure B-7: Isolation of the ADU from the mounting base
Isolating shoulder bush
Isolating washer
Plain washer
Spring washer
(stainless steel)
(stainless steel)
SAILOR900Ka-IM-98-146706.book Page 12 Thursday, July 16, 2015 11:07 AM