Furuno FMD-3200 User Manual

14-1
14. AIS TARGET FUNCTIONS
14.1 Introduction
An AIS transponder can be connected to the ECDIS to display AIS targets received
from an AIS transponder. The ECDIS can store up to 2,000 AIS targets in its storage
buffer. When this buffer becomes full of AIS targets, Alert 190 “AIS Target Capacity
100%” is generated to alert you that the storage buffer is full. The storage buffer con-
tains automatic dead reckoning for all AIS targets, which is based on reported Speed
Over Ground (SOG), Course Over Ground (COG), Rate Of Turn (ROT) and heading.
This ECDIS can display a maximum of 1,000 AIS targets. The Alert 190 "AIS Target
Display 100%" is generated when 1,000 AIS targets, which includes both activated
and sleeping targets, are displayed.
This ECDIS can activate 500 AIS targets. The Alert 190 “AIS Target Activate 100%”
appears when 500 AIS targets are activated.
The frequency for update of AIS transponder-sent data depends on speed and course
of tracked AIS target. The table below shows the IMO standardized reporting rates for
the AIS transponder.
An AIS transponder "sees" all ships fitted with a Class A or Class B AIS transponder.
Additionally the AIS transponder receives messages other than messages from ships:
• AIS Base station
• AIS on airborne SAR craft
• AIS on ATON (AIS aid to navigation)
Type of Ship
IMO
nominal reporting
interval
Class A: Navigation status is “anchor” or “not under command” or “moored”
or “aground”, and SOG 0 - 3 kn
3 min
Class A: Navigation status is “anchor” or “not under command” or “moored”
or “aground”, and SOG above 3 kn
10 s
Class A: SOG 0 - 14 kn 10 s
Class A: SOG 14 - 23 kn 6 s
Class A: SOG above 23 kn 2 s
Class B: “CS” SOG 0 - 2 kn 3 min
Class B: “CS” SOG above 2 kn 30 s
Class B: “SOTDMA” SOG 0 kn 0 - 2 kn 3 min
Class B: “SOTDMA” SOG 2 - 14 kn 30 s
Class B: “SOTDMA” SOG 14 - 23 kn 15 s
Class B: “SOTDMA” SOG above 23 kn 5 s
Class A and Class B: no SOG available N/A
AIS aircraft 10 s
AIS aid to navigation 3 min
AIS base station 10 s
SART N/A

Furuno FMD-3200 Specifications

General

Brand	Furuno
Model	FMD-3200
Category	Marine Equipment
Language	English