Operation Manual

User Manual

oriented triangle with COG and Heading vectors. Rate of turn may also be

displayed.

♦ Dangerous Target

Target detected by CPA or TCPA Alarm. Dangerous Target is Active Target

by definition. For better visibility Dangerous Target symbol is flashing.

♦ Sleeping Target

Target located outside the Activation Range. Sleeping Target is represented

by a small oriented triangle.

♦ Lost Target

When the AIS info is not received from that vessel for 3.5 minutes. The

presentation will be a flashing black triangle with a cross through.

♦ Activation Range

Range around your boat where Targets become active. AIS Target become active

within this range. Activation Range should be greater than CPA Limit by definition.

NOTE A Target is removed from the screen if data is not received for 10 minutes.

The maximum number of tracked Targets is 100.

Depending on the scale the presentation of the Targets change to remove

clutter on the screen.

This information is updated every 3 seconds to 6 minutes depending on speed

and rate of turn, enabling the track of the vessels in range to be plotted.

Fig. 4.8.1 - AIS Symbols

4.8.2 AIS Menu

To configure the chart plotter to receive AIS data, follow the procedure:

[MENU] + "SETUP" + [ENTER] + "AIS" + [ENTER]

Display :Turns ON or OFF the display of AIS targets overlay on the cartography.

Activation Range : Defines the range from the fix within which the AIS Target becomes active. The

values allowed are from 0.1 to 20 Nm.

CPA Alarm :Turns ON or OFF the alarm.

CPA Limit :The values allowed are from 0.1 to 10 Nm.

TCPA Alarm :Turns ON or OFF the alarm.

TCPA Limit : The values allowed are from 1 to 30 min.

4.8.3 To set the chart plotter for receiving AIS

Make sure that the AIS receiver is properly connected to the chart plotter.

The chart plotter reads the AIS NMEA message VMD, type 1, 2, 3 and 5.

Select the used serial port and transmission speed by following the procedure:

[MENU] + "SETUP" + [ENTER] + "Input/Output" + [ENTER] + "Port n In-

put" + [ENTER] + "m" + [ENTER]

Where: n = Port 1/Port 2/Port 3

m = NMEA-0183 4800-N81-N

AIS 38400

according to the transmission speed of your AIS receiver.