NMEA-0183 message: PTNL,GGK

Time, position, position type, DOP

An example of the PTNL,GGK message string is:

$PTNL,GGK,102939.00,051910,5000.97323841,N,00827.62010742,E,5,09,1.9,EHT150.790,M*73

PTNL,GGK message fields

Field

Meaning

0

Talker ID $PTNL

1

Message ID GGK

2

UTC time of position fix, in hhmmss.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 mmddyy 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
13: Beacon DGPS
14: CenterPoint RTX, QZSS CLAS
15: xFill

9

Number of satellites in fix

10

Dilution of Precision of fix (DOP)

11

Ellipsoidal height of fix (antenna height above ellipsoid). Must start with EHT.

12

M: ellipsoidal height is measured in meters

13

The checksum data, always begins with *

NOTES –  

  • The PTNL,GGK message is longer than the NMEA-0183 standard of 80 characters.

  • Even if a user-defined geoid model, or an inclined plane is loaded into the receiver, then the height output in the NMEA GGK string is always an ellipsoid height, for example, EHT24.123.