User's Manual Part 2

Operator Manual

Raytheon Marine GmbH

Germany

NSC 18

RADAR

2−71

3748DOC020102Edition: 14.JAN.2005

2.4.3 AUTOMATIC PLOTTING − ARPA MENU −

Automatic plotting means that the radar can acquire and track targets

automatically.

The operator can define acquisition zones.

As soon as a target enters such a zone, it is plotted and tracked by the radar.

ARPA acquisition zones

• CPA/TCPA limits

• Acquisition zone

• Guard zone

• Exclusion zone

NOTE

Despite all the advantages of automatic target acquisition, it may be the

case that:

Certain targets cannot be acquired due to the current weather conditions.

Targets cannot be acquired due to the set acquisition zone.

Targets cannot be acquired due to their size and material.

The target information (ARPA INFO softkey) can include slight tolerances

caused by possible influencing parameters such as weather conditions, heading

sensor tolerance or log sensor tolerance.