AIS CTRX GRAPHENE Class B AIS Transponder Manual
1.4E 19 CTRX GRAPHENE Manual
Before you begin the installation, you should decide on where you want to place your
AIS CTRX GRAPHENE unit.
Note the following:
Place the transponder in such a way that you will be able to see the LED’s on the
front. This will make it easy to monitor the functions and make sure that the unit is
working properly.
The transponder should be installed in a place where the length of the antenna
cables can be kept as short as possible, but also where DC power and access to
other equipment you would want to connect the AIS to is conveniently available.
AIS CTRX GRAPHENE has 3 data ports. 2 of them are preferably used for the
connection to a plotter (the NMEA0183/RS422 or the NMEA 2000 port). A USB port
(mini type) is available for connection to a PC. This is used for the configuration of
the unit as well as maintenance or use with a PC navigation solution.
If you are installing the AIS CTRX GRAPHENE+ version or using a Class B VHF
splitter with the standard CTRX Graphene it is recommended that you connect the
DC leads it to the same power source as your VHF.
There are antennas available specifically made for use with AIS equipment but any
standard type marine band VHF antenna will work. Place your VHF antenna as high
as possible but at least 2.5-3 m above the water surface. If you are installing a
separate AIS antenna you should make sure that it is separated as much as possible
from other VHF antennas to avoid interference.
GPS antennas should be installed in such a way that the antenna top surface has a
free and unobstructed view of the horizon. Make sure that the antenna is not placed
nearby metal objects in order to minimize reflections of the received signal. GPS
antennas should not be placed in the vicinity of high power HF or satellite
communications equipment.
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