Appendix B: NMEA Messages
B11: RMC - Recommended Minimum Specific GNSS Data
Syntax
$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,a,a*hh<CR><LF>
Description of fields
Field
Description
$--RCM
Header including talker ID
hhmmss.ss
UTC time of position
A
Status
A = Data valid
V = Navigation receiver warning
lll .ll
Latitude (WGS 1984)
l
a
Hemisphere,
N
orth or
S
outh
y yyy.yy
Longitude (W
1984)
y
GS
a
E
ast or
W
est
x.x
Speed over ground in knots
x.x
Course over ground in degrees
xxxxxx
Date: ddmmyy
x.x
Magnetic variation in degrees
a
E
ast or
W
est
a*hh
Mode Indicator
A = Autonomous mode
D = Differential mode
N = Data not vaild
<CR>
C
arriage
R
eturn
<LF>
L
ine
F
eed
Examples
Standard Talker ID
$GNRMC,113616.00,A,4724.5248557,N,00937.1063064,E,0.01,11.43,100406,11.43,E,D*1C
User defined Talker ID = GN
$GNRMC,113806.00,A,4724.5248547,N,00937.1063032,E,0.00,287.73,100406,287.73,E,D*10
285
Содержание GR10
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