GP1670F_1870F Operator's Manual - Furuno USA

10. OTHER FUNCTIONS10.1 AIS OperationsAIS (Automatic Identification System) is a system that continuously transmits the identificationand position of your boat to AIS transponder equipped vessels within communicatingrange. All such vessels also receive data from other AIS transponderequipped vessels and display their positions and other relevant information. The AISbroadcasts this information over a VHF transceiver. Data include:• Position• Call sign• Name of vessel• Speed over the ground• Course over the ground• CPAA maximum of 200 targets can be displayed, in the order in which they are received.Connection to a Class A or B AIS transponder is required.10.1.1 AIS target symbols• Heading• MMSI no.• TCPASymbol Target category Color DescriptionCOGAIS target White COG is indicated with a solidline.Dangerous AIStargetWhite(flashing)An AIS target is declared adangerous target when itsCPA and TCPA put the targeton a collision coursewith your boat.Lost AIS target White An AIS target becomes alost target if a signal is notreceived from the AIS targetfor x* minutes. The losttarget symbol is erased if asignal is not received for anadditional x* minutes. *Thetime depends on the AIStransponder. Check yourAIS owner’s manual for details.The symbols of AIS targets out of the display range are displayed smaller.10-1