Ais Receiver; About Ais; Ais Description - Icom MR-1220 Series Instruction Manual

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AIS RECEIVER

About AIS

The Automatic Identification System (AIS) is primarily
used for collision-risk management and navigation
safety. It automatically transmits and receives vessel
information, such as the vessel name, MMSI code,
vessel type, position data, speed, course, destination
and more. Information is exchanged among the
vessels and/or base stations on the VHF maritime
mobile band. The information helps to identify
other nearby vessels or stations by displaying the
received data on the radar screen.
D AIS Classes
There are seven types of AIS stations, vessels,
base stations, Search and Rescue (SAR), Aids to
Navigation (AtoN), Search and Rescue Transmitter
(SART), Man OverBoard (MOB), and Emergency
Position Indicating Radio Beacon (EPIRB).
AIS units for vessels are classified into Class A and
Class B. Under the Safety Of Life At Sea (SOLAS)
convention, all SOLAS vessels are required to install a
Class A AIS transponder:
Many other commercial vessels and some leisure
craft that are not required Class A units install Class B
unit to avoid accidents at sea.
Other vessel
(Class B AIS)
Vessel Information
Your vessel
(Class B AIS)
The radar can receive and display up to 100 (depends
on the Menu screen setting) of AIS Class A and Class
B targets on the screen, if the required data is input to
the display unit. See the External data list (p. 61) for
the details on the data requirements.
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Other vessel
(Class A AIS)
Base station

AIS description

D Turning the AIS display ON or OFF
You can turn the AIS display ON or OFF in the AIS
menu.
] > AIS > Display AIS Targets
[MENU]/[
D Description of the AIS display
If the radar has received AIS information of other
vessels or other targets, the icons are displayed as
shown below.
L See "AIS settings" later in this section for customizing the
AIS setting options.
1
1 AIS Icon
Displayed when a valid AIS signal is input to the
NMEA 1 port. The icon disappears if the AIS signal
is not received for 6 minutes.
L "FULL" is displayed below the AIS icon when the AIS
information of 100 targets is received.
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3
2