Tridentnav ECS Professional Tridentnav ECS Professional is developed for professional navigators, for example search and rescue organizations with their special high demands. Apart from the functions in Tridentnav ECS standard, Tridentnav ECS Professional offers additional functionality. Functions: - Chart plotter using the chart format S-57 giving a seamless presentation - North or course stabilized chart presentation - Possibility of manual updating of charts using "mariners navigational obects" - Chart updates via CD - Vectorized chart format with different layers of information - View system with up to 30 different screen layouts - Multiple views - Multiple chart plotter views - Day, dusk and night modes - Route planning / monitoring - Search tool for position - Search tool for geographical objects - Multiple ERBL:s with lock function - Range rings - Navigation log - AIS ship information - AIS message function - ARPA - Radar information VRM, EBL