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MOUNTING
D Mounting locations
The GPS receiver should be mounted in
a location that has a clear, unobstructed
view in all directions and as far away
from interference as possible, for the best
reception. When selecting a mounting
location, follow the guidelines below.
• The location should be at least 1 m (3.3 ft.)
away from a VHF/UHF antenna, and 4 m
(13.1 ft.) away from a MF/HF antenna.
• The location should be at least 5 m (16.4
ft.) away from an Inmarsat antenna.
D Installation
Hose clamps
(Supplied)
CONNECTION
MXG-5000S
[GPS]
MarineCommander
™
MXP-5000
• Be sure the location is out of the radar
beam.
• Be sure the location will not be shaded by
a random antenna or mast.
• Mount the GPS receiver as high as
possible.
We recommend that you place the GPS
receiver in the desired location temporarily,
and see if it receives any interference.
The supplied extension pipe is to be inserted
firmly into the base of the GPS receiver and
screwed in a clockwise direction.
Using the supplied hose clamps, the GPS
receiver can be stabilized to the mounting
mast.
(Example: Connect to the
MarineCommander™)
Prior to any operation, it is important to
make sure that all connections are made
accurately. All connections should be made
by only certified persons.
The output connector is to be connected
from the GPS receiver to the GPS data input
terminal of the MarineCommander™.
– 2 –
ATTENTION
About calculating position
The GPS receiver acquires signals from GPS
satellites. It calculates its position by the orbit
information of the GPS satellites and needs
to measure the distance between itself and
three or more GPS satellites to obtain a
reliable position. The GPS receiver acquires
all available satellites when it is powered up.
Normally, it takes approximately 1 minute to
determine a position.
In places where the GPS signals cannot
reach the GPS receiver, such as around
tall buildings, it may show position errors
(misplacement) or no position reading at all.
As the satellites are continuously moving,
measurement of the position or time by
the GPS receiver may take a while, and/or
no position reading can be made in some
instances. Even if the GPS receiver acquires
signals from three or more GPS satellites,
it may take a longer time to determine a
position depending on the satellite locations.
Location precision
The GPS receiver automatically calculates its
position when it acquires signals from three
or more GPS satellites.
The GPS satellite's measurement error is
about ±10 meters. However, this can vary up
to several hundred meters, depending on the
surrounding environment.
The GPS information and its accuracy
varies, depending on the GPS system being
acquired, place and time.
About NMEA sentences
When the current position data cannot
be received due to the GPS signal being
blocked by something, the GPS receiver
sends the last memorized NMEA sentence,
but the sentence may include invalid data.
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