User's Manual

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Installation | NAIS-400 Instruction Manual
be used with two radio devices, such as a VHF voice radio and the
AIS transceiver.
Warning: When selecting an AIS antenna splitter, make
sure it is capable of operation with an AIS transceiver. Some AIS
antenna splitters are designed to work only with AIS receivers.
Please check with your dealer to ensure you purchase the correct
type of antenna splitter.
Optional external GPS antenna
The transceiver has an internal GPS antenna. When the transceiver is
mounted in a location with a clear sky view (for example, beneath a
windshield or other non-metallic structure) an external GPS antenna
is not required. Should it not be possible to mount the transceiver in
a suitable location, then an external GPS antenna can be connected.
A compatible GPS antenna is available from your dealer as an acces-
sory.
Optional switch
A switch can be connected to the transceiver to enable and disable
‘silent mode’ (see Step 4 and 5 in Installation procedures, chapter 3.
A latching toggle switch is required to use this feature.
VHF antenna cable
Please check that the VHF antenna you intend to use has sufficient
cable to reach between the VHF antenna and the AIS transceiver
unit. If it is not sufficient, you will need an extension cable. Please
contact your dealer for details of suitable products. For reference,
the VHF antenna connector type on the AIS transceiver unit is SO
239, and is intended to mate with a PL 259 connector.
Power and data cable
The AIS transceiver unit is supplied with a 2 meter long power and
data cable as an accessory. If you require longer cables to reach your
power supply, please ensure the cables are capable of carrying cur-
rents of up to 2A peak and 200mA on average. Means of connecting
the cables together will also be required. The use of ScotchlokTM
connectors is recommended for this purpose.
Chartplotter
To display received AIS messages from other vessels on your chart-
plotter, you will need to connect your AIS transceiver to your chart-