MAESTRO WIRELESS SOLUTIONS
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245
E SERIES | USER MANUAL VERSION 2.2.0
http://support.maestro-wireless.com
$GPVTG,0.0,T,0.3,M,0.0,N,0.0,K,A*20
Parameters
Description
MID VTG Parameters
MID
VTG Protocol Header
Example – $GPVTG
Course
Measured heading
Example – 0.0 degrees
Reference
True
Example – T
Course
Measured heading
Example – 0.3 degrees
Reference
Magnetic
(1)
Example – M
Speed
Measured horizontal speed
Example – 0.0 knots
Units
Knots
Example – N
Speed
Measured horizontal speed
Example – 0.0 km/hr
Units
Kilometers per hour
Example – K
Mode
Indicates
A –
Autonomous
D –
DGPS
E –
DR
N –
Output Data Not Valid
R –
Course Position
(2) (3) (4)
S –
Simulator
Example
–
A
Checksum
*20
<CR><LF>
End of message termination
Table 12.8-4: VTG Data Format
(1)
CSR does not support magnetic declination. All
“
course over ground
”
data are geodetic WGS84 directions.
(2)
Position was calculated based on one or more of the SVs having their
states derived from almanac parameters, as opposed to ephemerides.
(3)
This feature is supported in the GSD4e product only.
