Furuno Class A AIS Transponder [FA170]Class A AIS Transponder Furuno's FA170 is a Class A AIS Transponder with a 4. 3" Color LCD Display. It displays symbols for AIS equipped vessels, AIS SARTs, coastal stations, and other aids to navigation within the VHF range. AIS data can be output to ECDIS, Radar, or other navigational equipment for collision avoidance support. The FA170 includes 6 in out ports, 3 input only ports, one LAN port, and one alarm output (contact closure) port. The unit