KVH Industries TracPhone FB250 Installation Manual page 138

C.4.2 Grounding the antenna
You can ground the antenna to the ship/hull via one or more of its mounting
bolts. Make sure to remove painting, dirt, grease etc. at the mounting holes in
order to make good electrical contact to the hull. Use serrated washers when
securing the mounting bolts and seal the joint with protective coating to avoid
corrosion.
10 mm spacer
Antenna bottom
If you are using vibration isolators at the bolts, the grounding connection
between the mounting surface and the bolts is not sufficient. In that case
mount a separate grounding wire. See Separate ground cable on page 134.
It is always recommended to establish the shortest grounding path as possible
e.g. on steel hulls the antenna should be grounded directly to the hull
However, due to the fact that this is not possible on e.g. fiberglass hulls (nor is
it preferable on aluminum hulls) a number of alternative grounding methods
are suggested in the following paragraphs.
1. Please note that the antenna ground connection is made at the same
electrical ground potential as the
Appendix C: Grounding and RF protection
Serrated washer M10 Mounting bolt
(Stainless steel) (Stainless steel)
Grounding Recommendations
terminal
.
Mounting base
1
.
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