Ais; Viewing Ais Vessels - NorthStar Multi-Function Unit M121 Installation And Operation Manual

16 AIS

AIS is short for Automatic Identification System.
The International Convention for Safety of
Life At Sea (SOLAS) requires all vessels greater
than 300 tons and all passenger vessels to be
equipped with AIS Transponders. All vessels
equipped with AIS permanently broadcast
via one or more of the two dedicated VHF
channels. This transmission may include
information about the vessels MMSI-number,
its call sign, name, position, course, heading,
speed, rate of turn and type of vessel.
This unit can receive and display AIS
information when connected to an AIS receiver.
Available AIS vessels transmitting in the local

16-1 Viewing AIS Vessels

A typical AIS window shows:
A AIS Vessel
B Dangerous Vessel
C Projected Course
D Data Box
E Range Rings
E
D
Northstar M121/M84 Installation and Operation Manual
area are shown on the chart when this feature
is enabled.
The following AIS receivers are supported by
this unit:
• Comar SLR200 (external GPS).
• Weatherdock Two Channel AIS Receiver
"EASY AIS", Part No. 5-A-013 (external GPS).
• NASA Marine AIS Engine 2 channel Receiver
(external GPS).
Other AIS receivers may work but have not
been tested with this unit.
To enable AIS from the system menu check the
AIS box. (see section 16-3)
B
A
C
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