User Manual

A NMEA-0183 Output
194 5700/5800 GPS Receiver User Guide
5700 & 5800 Reference
VTG Actual Track Made Good Over and Speed Over Ground
An example of the VTG message string is shown below. Table A.11
describes the message fields.
$GPVTG,,T,,M,0.00,N,0.00,K*4E
ZDA UTC Day, Month, And Year, and Local Time Zone Offset
An example of the ZDA message string is shown below. Table A.12
describes the message fields.
$GPZDA,172809,12,07,1996,00,00*45
Table A.11 VTG message fields
Field Meaning
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
Table A.12 ZDA message fields
Field Meaning
1UTC
2 Day, ranging between 01 and 31
3 Month, ranging between 01 and 12
4Year
5 Local time zone offset from GMT, ranging from 00 to ±13 hours
6 Local time zone offset from GMT, ranging from 00 to 59 minutes