SIM66 Series_NMEA Message_User Guide_V1.01
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MSAS satellite number is 49, 57
GAGAN satellite number is 47, 48
elv1~elv4
UINT
Elevation of the first to fourth satellite (0 ~ 90 degrees)
az1~az4
UINT
Azimuth of the first to fourth satellite (0 ~ 359 degrees)
cno1~cno4
UINT
CNR of the 1st to 4th satellites (0 ~ 90dBHz), fill null for
untracked satellites
cs
STR
Checksum
A hexadecimal number obtained by calculating an XOR of
all characters from '$' to '*' in this statement
<CR><LF>
End of message termination
(1): GPS+SBAS+QZSS joint positioning is only supported by firmware with the version of R3.4.0.0 or
above.
(2) (3) (4) (5): Only supported by firmware with the version of R3.4.0.0 or above
Due to the excessive number of satellites in GN mode, GSV at 9600 baud rate will have
the problem of incomplete printing of satellite information. For complete satellite
information, please switch the baud rate to 115200
2.4.5 Message ID RMC: Output the Minimum Recommended Data
Syntax:$RMC,time,status,Lat,N,Lon,E,spd,cog,date,mv,mvE,mode*cs
Example:$GPRMC,123400.000,A,4002.217821,N,11618.105743,E,0.026,181.631,180411,,E,A*2C
Parameter
Format
Description
--
STR
Positioning system flag
GP GPS+SBAS+QZSS joint positioning
BD BDS system standalone positioning
GN Multiple system joint positioning
time
STR
UTC time, in the format of hhmmss.sss
hh Hours
mm Minutes
ss.sss Seconds
status
STR
Position valid indicator
V Invalid
A Valid
Lat
STR
Latitude, in the format of ddmm.mmmmmm
dd Degrees
mm.mmmmmm Minutes
N
STR
North or south latitude indicator
N North latitude
S South latitude
NOTE