Ground Cable - Connection; Isolation Of The Adu From The Mounting Base - Furuno FV-110GX Operator's Manual

Separate ground cable
A.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 A-7, Isolation of the ADU from the mounting base on page A-10.
5. At the other end, connect the ground cable as described in To ground the ACU on
page A-1.
A.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.
A-10
Isolating washer
Isolating shoulder bush
Figure A-7: Isolation of the ADU from the mounting base
Plain washer
(stainless steel)
Spring washer
(stainless steel)