MU-201 GPS/GPRS Nano Tracker User Manual
Copyright © 2011 San Jose Technology, Inc. All Rights Reserved.
61
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 GPS system
data transmission.
Format:
$GPRMC,Time,(A/V),Latitude,(South/North),Longitude,(East/West),Ground Speed,Direction,Date,,,A*CS<CR><LF>
Example:
$GPRMC,110214.00,A,2457.81039,N,12125.54004,E,0.634,287.73,210111,,,A*62
Name
Format
Example
Unit
Description
$GPRMC string
$GPRMC
RMC protocol header
Time
hhmmss.ss
110214.00
UTC Time
Time of position fix in hours, minutes, seconds UTC
Navigation receiver warning status
V = Navigation receiver warning (maybe invalid)
Status
Capital letter
A
A = Data valid (OK)
Latitude ddmm.mmmmm 2457.81039
User datum latitude in degrees, minutes and thousandths of
minutes
South/
North
Capital letter
N
N= North latitude
S= South latitude
Longitude dddmm.mmmmm 12125.54004
User datum longitude in degrees, minutes and thousandths of
minutes
East/
West
Capital letter
E
E= East longitude
W= West longitude
Ground
Speed
numeric
0.634
knot
Speed over ground in nautical miles per hour
Direction numeric
287.73
degree Course over ground, degrees true
Date
ddmmyy
210111
Current Date in Date, Month and Year format:
,,,
N/A
N/A
Null field
Mode
Indicator
A
A=Autonomous
D=Differential
CS
hexadecimal
*62
Mandatory checksum. 8 bit exclusive OR of all data in the
sentence, including comma ",", between but not including the "$"
and "*" delimiters
<CR><LF>
End of message
