Trimble Outdoors r7-r8 Benutzerhandbuch

A       NMEA-0183 Output

1 8 6      Trimble R7/R8 GPS Receiver User Guide

An example of the VTG message string is shown below. Table A.15 
describes the message fields.

$GPVTG,,T,,M,0.00,N,0.00,K*4E

1

Track made good (degrees true)

2

T: track made good is relative to true north

3

Track made good (degrees magnetic)

4

M: track made good is relative to magnetic north

5

Speed, in knots

6

N: speed is measured in knots

7

Speed over ground in kilometers/hour (kph)

8

K: speed over ground is measured in kph