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©
2020, REYAX TECHNOLOGY CO., LTD.
26
RYS8830 RYS8833
`GNSS Module Software Guide
7.
VTG: Course Over Ground & Ground Speed
Format : $--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh
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Field
Format
Description
Header
$
Talker ID
--
GP : Using only GPS for positioning
GL : Using only GLONASS for
positioning
QZ : Using only QZS for positioning
GN : Using combined satellite systems
for positioning
Sentence ID
VTG
Course over ground - True
x.x,T
[degrees]
Course over ground -
Magnetic
x.x,T
NULL
Speed over ground
x.x,N
[knot]
Speed over ground
x.x,K
[km/h]
Mode Indicator
a
A : Autonomous mode
D : Differential mode
E : Dead reckoning mode
N : Data not valid
Checksum
*hh
Termination
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