The Kelvin Hughes NTD ARPA is a rugged, compact and flexible naval radar display system for use both on the bridge and in the ops room (CIC) of warships. The NTD ARPA satisfied IMO ARPA requirements for navigation Radar. Configurations can be provided for all types of sailboat ship and boat submarine in both new-build and retrofit projects. The system is able to interface to and control a wide range of radar marine transceivers and antennae.