The AIS Engine 1 and 2 can be upgraded to AIS Engine 3 specification by replacing the processor. This is a straightforward procedure where the old device is simply unplugged from its socket and replaced by the new device. AIS Engine 3 relays all AIS messages.
This ‘do it yourself’ install chip will enhance your AIS Radar by adding the latest SART function. If a SART (search and rescue transponder) transmission is received the AIS Radar will sound an alarm in the SOS tone. The zoom range is also enhanced by zooming right down to 0.125 nautical miles for easier location of the SART beacon/MOB. Additionally a course over ground pointer can be activated by the user which appears if your vessel is moving at 2 knots or more, this greatly simplifies the interpretation of targets on the screen relative to your own boats heading.