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SPSx51 Modular GPS Receivers User Guide 127
NMEA-0183 Output A
PTNL,GGK
Time, Position, Position Type, DOP
An example of the PTNL,GGK message string is shown below. Tabl e A.8 describes the
message fields.
$PTNL,GGK,453049.0,0,3728.455440850,N,12215.253291068,W,3,9,2.0,EHT35.742
4,M*
Note – The PTNL,GGK message is longer than the NMEA-0183 standard of 80 characters.
Table A.8 PTNL,GGK message fields
Field Meaning
0 Talker ID $PTNL
1 Message ID GGK
2 UTC time of position fix, in hhmmmss.ss format. Hours must be two numbers,
so may be padded, for example, 7 is shown as 07.
3 UTC date of position fix, in ddmmyy format. Day must be two numbers, so may
be padded, for example, 8 is shown as 08.
4 Latitude, in degrees and decimal minutes (dddmm.mmmmmmm)
5 Direction of latitude:
N: North
S: South
6 Longitude, in degrees and decimal minutes (dddmm.mmmmmmm). Should
contain three digits of ddd.
7 Direction of longitude:
E: East
W: West
8 GPS Quality indicator:
0: Fix not available or invalid
1: Autonomous GPS fix
2: RTK float solution
3: RTK fix solution
4: Differential, code phase only solution (DGPS)
5: SBAS solution – WAAS, EGNOS, MSAS
6: RTK float or RTK location 3D Network solution
7: RTK fixed 3D Network solution
8: RTK float or RTK location 2D in a Network solution
9: RTK fixed 2D Network solution
10: OmniSTAR HP/XP solution
11: OmniSTAR VBS solution
12: Location RTK solution
9 Number of satellites in fix
10 Ellipsoidal height of fix (antenna height above ellipsoid). Must start with EHT.
11 M: ellipsoidal height is measured in meters
12 The checksum data, always begins with *