Appendix G: Grounding and RF protection
Grounding Recommendations
111
GGG
G.4.2 Grounding the ADU
The ADU must be grounded to the ship/hull via
at least
one 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.
It is always recommended to establish the shortest grounding path as possible
e.g. on steel hulls the ADU should be grounded directly to the hull
1
. 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 ADU ground connection is made at the same electrical
ground potential as the BDU.
Mounting Base
M10 Mounting Bolt
(stainless steel)
Serrated Washer
(stainless steel)
Grounding/Mounting Stud on ADU
ADU
tighten to 25 +/- 5 Nm
Содержание TracPhone F55
Страница 1: ...A Guide to the TracPhone F55 F77 Satellite Communications KVH TracPhone F55 F77 installation manual...
Страница 22: ...Table of Contents x...
Страница 28: ...Chapter 2 GMDSS Installations 6 Power Supply...
Страница 40: ...Chapter 3 Placing the Antenna 18 Antenna Mast Design...
Страница 48: ...Chapter 5 Installing the BDU 26 Grounding the BDU...
Страница 54: ...Chapter 6 F77 Distress Cradle 32 Assembly Alternative...
Страница 58: ...Chapter 7 F55 Passive Cradle 36 Passive Cradle Assembly...
Страница 64: ...Chapter 8 Connecting Power 42 Power supply specification...
Страница 84: ...Chapter 10 Hardware Interfaces 62 Discrete I O interface...
Страница 109: ...Appendix B F55 77 ADU Technical Specifications Outline Dimensions Flange 87 BBBB B 6 Outline Dimensions Flange...
Страница 116: ...Appendix C F55 77 BDU Technical Specifications 94 Measuring the Ship Source Impedance...
Страница 120: ...Appendix D Distress Cradle Technical Specifications 98 Outline Dimensions...
Страница 122: ...Chapter E Passive Cradle Technical Specifications 100 Outline Dimensions E 2 Outline Dimensions Dimension are in mm...
Страница 123: ...Chapter E Passive Cradle Technical Specifications Outline Dimensions 101 EEE...
Страница 124: ...Chapter E Passive Cradle Technical Specifications 102 Outline Dimensions...
Страница 126: ...Chapter F Handset Technical Specifications 104 Outline Dimensions F 2 Outline Dimensions Dimension are in mm...