NMEA TLL
The NMEA TLL datagram contains target information; number, name, position and time tag. The TLL datagram allows the sonar system to receive information about targets that are tracked by other systems.
Serpe BSC
Serpe BSC is a proprietary datagram format created by Serpe. It is supplied with buoys and provides the geographical location of the buoy as well as the water temperature the buoy measures.
Ryokusei RBY
Ryokusei RBY is a proprietary datagram format created by Ryokusei. It is supplied with buoys and provides the geographical location of the buoy as well as the water temperature the buoy measures. The datagram also provides echo sounder information.