KGC-1
Chapter
4
Operation Manual
Installation
Chapter 4 Installation
4.1 Installation consideration
Installation of the GPS Compass must be made by qualified personnel, which is essential for good and
prolonged operation of the unit. Installation includes the following;
(1) Unpacking the contents
(2) Inspecting the component unit, spare parts, accessories.
(3) Checking the power supply voltage, current capacity
(4) Deciding on the installation site
(5) Installing the GPS, Antenna and Processor unit
(6) Cable layout and connection
(7) Set up after installation
4.2 Unpacking contents
Unpack the contents and check off all items against the “Standard Composition list” in 2.1.
4.3 Inspection of component unit and accessories
Check each item for dents or any damage, etc.
4.4 Choosing the installation site
To operate the equipment in good order, the following points should be observed for installation.
4.4.1
Ideal site of GPS antenna
The GPS antenna GA-11 must be installed where good radio wave reception is achieved. No
obstacles should be located above the antenna otherwise the radio wave reception may be interrupted.
This causes the available GPS service hours to be reduced and degrades the positioning accuracy.
(1)
Select a site away from metallic objects, where possible.
(2)
Locate the GPS antenna at least 4 m away from radio antennas such as, Inverted-L antennas for
MF/HF transmission, Whip Antennas for VHF or UHF.
(3)
Locate the GPS antenna at least 1.5 m above any Inverted-L antenna for MF/HF transmission.
(4)
Locate the GPS antenna at least 1 m from receiving antennas.
(5)
Locate the GPS antenna away from radar beams (Vertical beam width: 30
o
~ 40
o
).
(6)
Locate the GPS antenna at least 1 m away from radar antennas.
(7)
Locate the GPS antenna at least 5 m away from Inmarsat radomes.
(8)
Locate the GPS antenna at least 3 m away from DF loop antennas.
(9)
Locate the GPS antenna at least 2 m away from the ship’s engine.
(10) Locate the GPS antenna at least 0.5 m away from metallic objects.
Should any of the requirements mentioned in item (1) to item (11) not be met, try to fulfill the
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