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Trimble R7/R8 GPS Receiver User Guide 179
NMEA-0183 Output A
Trimble R7 and R8
PTNL,GGK
Time, Position, Position Type, DOP
An example of the PTNL,GGK message string is shown below.
Table A.8 describes the message fields.
$PTNL,GGK,172814.00,071296,
3723.46587704,N,12202.26957864,W,
3,06,1.7,EHT-6.777,M*48
Table A.8 PTNL,GGK message fields
Field Meaning
1 UTC of position fix
2Date
3 Latitude
4 Direction of latitude:
N: North
S: South
5 Longitude
6 Direction of Longitude:
E: East
W: West
7 GPS Quality indicator:
0: Fix not available or invalid
1: Autonomous GPS fix
2: Differential, floating carrier phase integer-based solution,
RTK(float)
3: Differential, fixed carrier phase integer-based solution,
RTK(fixed)
4: Differential, code phase only solution (DGPS)
8 Number of satellites in fix
9 DOP of fix