DGPS224(JLR-4341)
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SECTION 3 INSTALLATION
3.1 Unpacking and Checking
Take out the DGPS224 from the packing case carefully. Check each item listed in Table 1-1 is
contained in the case. Save the case and the packing material until the equipment will be installed
successfully. In case the equipment is to be returned, kindly use the kept packing material.
3.2 Locating the Position for Installation
When connecting the cable attached to the equipment, do not bend it
acutely, twist it, or impart excessive force. Doing so sometimes causes
cracks or damage to the coating, resulting in fire or electrocution.
Do not install the sensor where there is excessive vibration.
Vibration may cause sensor failure.
Do not paint the sensor.
Doing so may result in reception problems.
Install the sensor where there are no obstacles, in order to ensure that
GPS signals can be directly received from satellites without
interference or reflection of signals from surrounding objects.
Whenever possible, select a place with the following characteristics.
If it is difficult to find an ideal site, select a place temporarily and install the
equipment. Conduct a test to make sure that the proper performance can be
obtained and then fix the equipment in position. If it is installed at an improper
place, reception accuracy may be impaired.
1. An open space, which allows uniform reception of satellite signals.
2. Far away from any high power transmission antennas.
3. Outside radar beams.
4. Away from the INMARSAT antenna by at least 5 meters and outside the
INMARSAT beam.
5. Away from the antenna of a VHF transmitter and a direction finder
by at least 3 meters.
6. Away from a Magnetic Compass by at least 1 meters.
7.
3 meter or more away from amateur radio antennas.
CAUTION