Trimble R7/R8 GPS Receiver User Guide 185
NMEA-0183 Output A
Trimble R7 and R8
ROT Rate of Turn
The ROT string is shown below, and Table A.14 describes the message
fields.
$GPROT,35.6,A*4E
8 ∆Range/∆Time
9 Quality indicator:
0: Fix not available or invalid
1: Autonomous GPS fix
2: Differential carrier phase solution RTK(float)
3: Differential carrier phase solution RTK(fix)
4: Differential code-based solution, DGPS
10 Number of satellites used in solution
11 PDOP
Table A.14 ROT message fields
Field Meaning
1 Rate of turn, degrees/minutes, "–" indicates bow turns to
port
2 A: Valid data
V: Invalid data
Table A.13 PTNL,VHD message fields (continued)
Field Meaning
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