Automatic radar plotting aids are required for ships of 10,000 gross tons or more, constructed on or after September 1984, and tankers constructed before September 1st, 1984. It is designed to be operated as a separate or integral part of marine radar equipment. It will give precise target information to avoid collision in vector and numeric form. There are various models world-wide. Please ask a representative about detailed specifications. Listed below are some specifications for your reference.