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ECDIS displays have different color schemes ("modes") to accommodate variations in the ambient light conditions; the coding scheme should be effective whether the quality of data is to be advised in day-or nighttime using either of the three mandatory ECDIS modes (day, dusk, night) shown in Figure 4. ... ...

ECDIS carriage requirements The amended SOLAS regulation V/19 requires all newly built passenger ships of 500 gross tonnage and upwards, as well as newly built cargo ships of 3,000 gross tonnage and upwards engaged on international voyages to be fitted with ECDIS.

There are two types of electronic charts: raster navigational charts (RNC) and electronic navigational charts (ENC). RNC are exact copies of paper charts and their use underway comes naturally to navigators accustomed to paper charts.

This article will help to understand the best practice for handling safety settings on ECDIS which includes the Safety contour, safety depth, shallow contour, and deep water contour.

The sensors providing the data inputs to ECDIS are the following: The global positioning system (GPS and/or DGPS). The automatic identification system (AIS). The radar and automatic radar plotting aid (ARPA).

Minimum Interface Requirement Position Sensor. Heading Sensor. Speed Sensor.

A navigating officer can then access the system using chart number to print and apply any specific or all applicable corrections for any chart present onboard. There is an offline database and software in use onboard ships where corrections are supplied in the form of weekly mail attachments.

Permits are used to control the permission to use a chart. They prevent unofficial copying and distribution.