A chartplotter’s chart card is a physical or digital card that contains chart data and navigation-related information. The chart card is designed to be compatible with a specific chartplotter or navigation device.
A chart card may include various types of chart data, such as nautical charts, river charts, harbor charts, depth information, navigation routes, water area boundaries, navigational marks, harbor locations, and other navigational data. Chart cards can also include additional information such as harbor services, anchorage locations, water currents, and virtual markers.
The chart card is inserted into the chartplotter or navigation device, which reads the data from the card and displays it on the screen. This allows the device to show the vessel’s position, route, and other essential navigation information in real time.
It is important to choose the right type of chart card that is compatible with the chartplotter in use and covers the necessary areas and data for the intended navigation region. Chart cards are available from different manufacturers, and their features — such as chart accuracy, update frequency, and additional functionalities — may vary.