Explains the principle of Radars, Global Navigation Satellite Systems, basic knowledge of operation of inertial navigation system, basic knowledge of operation, maintenance and repairs of ship compass equipment, basic knowledge of construction, operation, maintenance and troubleshooting of various speed logs, basic knowledge of construction, operation, configuration, maintenance and troubleshooting of echosounder system, basic knowledge of operation, maintenance and repair of autopilot, basic knowledge of operation, maintenance and repair of Voyage Data Recorders, Navigation lights, Search Lights, Ship Horns and Sound Signal Systems, and Wind Trackers.