NASA AIS Plotter, Marine AIS Plotter

The Nasa Marine AIS SART Plotter is the first stand alone AIS receiver / plotter specifically designed for the leisure boat market. The unit consists of a dual frequency AIS receiver, demodulator, signal processor and a backlit matrix display. It receives an NMEA input (RMC) from the boats GPS which puts the user at the centre of a radar style screen. A COG pointer is selectable by the user. All AIS carrying vessels and SART transponders are displayed with bearing and range relative to the user. Any vessel on the screen can be selected by the user. The selected vessel is highlighted and its data displayed on the right of the screen. This data includes the vessel’s MMSI number, name, course over ground, speed over ground, range, latitude and longitude. The display, with ranges of 0.125, 0.25, 0.5, 1, 2, 4, 8, 16 and 32 nautical miles shows AIS carrying vessels and SART transponders in a format normally associated with conventional radar. A trail of previous positions clearly shows the relative track of all the targets on the screen. A box to the right of the screen displays the speed over the ground, the vessel name, MMSI number and the latitude and longitude of any target selected by the user.