GPS-18X19 Datasheet, PDF (11/11 Pages) List of Unclassifed Manufacturers – GPS Ultra High Sensitivity Module

VTG – Course Over Ground and Ground Speed
The Actual course and speed relative to the ground.
Structure:
GPVTG,x.x,T,,M,x.x,N,x.x,K,a*hh<CR><LF>
1 2 34 5
Example:
GPVTG, 000.0,T,,M,000.0,N,0000.0,K,A*3D<CR><LF>
Field Name
Example Description
1
Course
000.0
True course over ground in degrees (000.0 ~ 359.9)
2
Speed
000.0
Speed over ground in knots (000.0 ~ 999.9)
3
Speed
0000.0
Speed over ground in kilometers per hour (0000.0 ~
1800.0)
4
Mode
A
Mode indicator
‘N’ = not valid
‘A’ = Autonomous mode
‘D’ = Differential mode
‘E’ = Estimated (dead reckoning) mode
‘M’ = Manual input mode
‘S’ = Simulator mode
5
Checksum 3D
http://www.wenshing.com.tw ; http://www.rf.net.tw
GPS-18X19 Datasheet P11