Simrad TPC datagram format
Simrad TPC is a proprietary datagram format created by Kongsberg Maritime to provide the trawl position in Cartesian coordinates.
Format
@IITPC,x,M,y,M,z,M<CR><LF>
Description
1 IITalker identifier
2 TPCDatagram identifier
3 x,MThis is the horizontal distance in metres from the vessel’s centre line.
4 y,MThis is the horizontal distance in metres from the transducer to the trawl along the vessel’s centre line.
5 z,MThis is the depth in metres of the trawl below the water surface.