User's Manual

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Trimble R7/R8 GPS Receiver User Guide 177
NMEA-0183 Output A
Trimble R7/R8 GPS Receiver Operation
Heading Information
An example of the PTNL,VHD message string is shown below.
Table A.13 describes the message fields.
$PTNL,VHD,030556.00,093098,187.718,
-22.138,-76.929,-5.015,0.033,0.006,
3,07,2.4,M*22
Table A.13 PTNL,VHD message fields
Field Meaning
1 UTC of position, in
hhmmss.ss,ddmmyy format
2 Date in mmddyy format
3Azimuth
4 Azimuth/Time
5 Vertical Angle
6 Vertical/Time
7Range
8 Range/Time
9 Quality indicator:
10 Number of satellites used in solution
11 PDOP