NMEA-0183 message: ROT
Rate and direction of turn
The heading computation in this message is derived from consecutive positions. For heading using a moving baseline system, see NMEA-0183 message: PTNL,AVR.
An example of the ROT string is:
$GPROT,35.6,A*4E
ROT message fields
|
Field |
Meaning |
|---|---|
|
0 |
Message ID $GPROT |
|
1 |
Rate of turn, degrees/minutes, “–” indicates bow turns to port |
|
2 |
A: Valid data
|
|
3 |
The checksum data, always begins with * |
