Simrad TPT is a proprietary datagram format created by Kongsberg Maritime to provide the true bearing and water depth of the trawl sensor, as well as its distance from the vessel.The bearing resolution is 1 degree.
Format
@IITPT,x,M,y,P,z.z,M<CR><LF>
Description
Note
All data relate to the trawl sensor (target).
1
II: Talker identifier
2
TPT: Datagram identifier
3
x,M: Horizontal range (Metres) (0 – 4000 )
4
y,P: Bearing in degrees (True, for example relative to north)
5
z,z,M: Depth (Metres) (0 – 2000 )
Note
The Simrad ITI measures the depth differently from the range and the bearing. If the ITI only knows the range and the bearing,
the depth field is empty.