User's Manual

SPSx50 Modular GPS Receiver User Guide 129
NMEA-0183 Output A
ROT Rate and Direction of Turn
The ROT string is shown below, and Ta bl e A .1 5 describes the message fields.
$GPROT,35.6,A*4E
Table A.15 ROT message fields
Field Meaning
0 message ID $GPROT
1 Rate of turn, degrees/minutes, "–" indicates bow turns to port
2
A: Valid data
V: Invalid data
3 The checksum data, always begins with *