GS-818 GPS/GSM/GPRS Vehicle Tracker User Manual
77 Copyright © 2011 San Jose Technology, Inc. All Rights Reserved.
Appendix 3: NMEA 0183 GPRMC Data Format
RMC - Recommended Minimum data
The Recommended Minimum data format is defined by NMEA (
National Marine Electronics Association)
for Transmitting
GPS system data.
$GPRMC,hhmmss,status,latitude,N,longitude,E,spd,cog,ddmmyy,mv,mvE*cs<CR><LF>
Example:
$GPRMC,100010.000,
A
,2457.8090,N,12125.5444,E,0.00,61.56,011110,,*36
ASCII String
Name
Format
Example
Units Description
$GPRMC
string
$GPRMC
Message
ID
RMC protocol header
Time
hhmmss.sss 100010.000
UTC Time Time of position fix
V = Navigation receiver warning
Status
letter
A
Status
A = Data valid
Latitude ddmm.mmmm 2457.8090
Latitude
User datum latitude degrees, minutes, decimal minutes
format
N
letter
N
N/S
Indicator
N=north or S=south Hemisphere
Longitude ddmm.mmmm 12125.5444
Longitude
User datum latitude degrees,
minutes, decimal minutes format
E
letter
E
E/W
indicator
E=eastern or W=western
Speed
numeric
0.00
knots
Speed
Speed Over Ground
COG
numeric
61.56
degrees
COG
Course Over Ground
Date
ddmmyy
011110
Date
Current Date in Date/Month/Year format
mv
numeric
degrees
Magnetic
variation
value
Not being output by receiver
mvE
character
Magnetic
variation
E/W
indicator
Not being output by receiver
Cs
hexadecimal
*36
Checksum
<CR>
<LF>
End of message