Electronic charts-at the heart of the 21st century navigation

The electronic chart is a facsimile or replica of a nautical chart as displayed on an electronic screen. In most instances the display is created from a digital file that is produced by manually digitizing the curves and contours of a paper chart. It is suggested that, in maritime applications, the chart´s presence will enable the integration of radar, positioning, and communications equipment into a single display; this will enhance the value of these systems, and will have a strong influence on the structure of the marine electronics industry. One of the problems of acceptance of electronic charts is not technical, but is legal and regulatory. It is concluded that international and national standards and rules will have to be adopted before there is widespread purchase and use of these systems