NSR Marine NGR-1000, Руководство пользователя

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NGR-1000/NGR-3000 USER MANUAL
NGR-1000/NGR-3000 UM.E 20190331-04
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7. INSTALLATION
7.1 Installation of Main Unit
The main unit can be installed on a table-top, on the overhead, or in a panel (optional flush
mounting brackets required). Refer to the outline drawings at the end of this manual for
installation instructions. When selecting a mounting location, keep in mind the following
points:
• Locate the unit away from exhaust pipes and vents.
• The mounting location should be well ventilated.
• Mount the unit where shock and vibration are minimal.
• Locate the unit away from equipment which generates electromagnetic fields such as a motor
or generator.
• Allow sufficient maintenance space at the sides and rear of the unit and leave sufficient slack
in cables, to facilitate maintenance and servicing.
• Observe the following compass safe distances to prevent deviation of a magnetic compass.
Standard compass, 0.5 m, Steering compass, 0.3 m.
7.2 Installation of Antenna Unit
Install the antenna unit by referring to the antenna installation diagram at the end of this manual.
When selecting a mounting location for the antenna unit, keep in mind the following points:
• Do not cut the antenna cable.
• Select a location out of the radar beam. The radar beam will obstruct or prevent reception of
the GNSS signal.
• The location should be well away from a VHF/UHF antenna. A GNSS equipment is interfered
by a harmonic wave of a VHF/ UHF antenna.
• There should be no o b s t r u c t within the line-of-sight to the satellites. Objects within
line-of-sight to a satellite, for example, a mast, may block reception or prolong acquisition
time.
• Mounting the antenna unit as high as possible keeps it free from interfering objects and
water spray, which can interrupt reception of GNSS satellite signal if the water freezes.
• If the antenna cable is to be passed through a hole which is not large enough to pass the
connector, you may unfasten the connector. Refasten it after running the cable through the
hole.