12
Sentence
Input sentence
GPS data input
$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,a*hh
(1)
UTC of position fix
(2)
Status, A=data valid, V=navigation receiver warning
(3)
Latitude
(4)
Latitude, N/S
(5)
Longitude
(6)
Longitude, E/W
(7)
Speed over ground, knots
(8)
Course over ground, degree true
(9)
UTC date
，
dd/mm/yy
(10)
Magnetic variation, degree, E/W
(11)
Mode indicator, A=Autonomous mode
D=Differential mode
E=Estimated
（
dead reckoning
）
mode
M=Manual input mode
S=Simulator mode
N=Data not valid
(12)
Checksum
1 2 3 4 5 6 7 8 9 10 11 12
