ABSTRACT
Technical progress of modern digital navigating and communication technologies has provided new technical systems appeared and maintained in practical navigation such as: Global Maritime Distress and Safety System (GMDSS), Automatic Identification System (AIS), Global Navigational Satellite System (GNSS), Electronic Chart Display and Information System (ECDIS), etc. At the same time keeping and increasing the level of safety at sea in the conditions of vessel’s saturation by navigating and radioelectronic devices demands the effective operation of the specified systems under common fatigue of the officer of the watch (OOW).
