User`s manual

USB Dongle Series Model:UD-731N

UniTraQ International Corp. RoHS compliance.

2011,01, Version 1.1

10.5 RMC - RECOMMANDED MINIMUM SPECIFIC GPS/TRANSIT DATA

Time, date, position, course and speed data provided by a GNSS navigation receiver.

Structure:

$GPRMC,hhmmss.sss,A,dddmm.mmmmm,a,dddmm.mmmmm,a,x.x,x.x,ddmmyy,x.x,a,a*hh<CR><L

1 2 3 4 5 6 7 8 9 10 11 12 13

Example:

$GPRMC,092204.999,A,4250.55899,S,14718.50849,E,0.00,89.68,211200,,A*25<CR><LF>

Field Name Example Description

1 UTC time 092204.999 UTC time in hhmmss.sss format (000000.00 ~

235959.999)

2 Status A Status

‘V’ = Navigation receiver warning

‘A’ = Data Valid

3 Latitude 4250.55899 Latitude in dddmm.mmmmm format

Leading zeros transmitted

4 N/S indicator

N/S

S Latitude hemisphere indicator

‘N’ = North

‘S’ = South

5 Longitude 14718.5084 Longitude in dddmm.mmmmm format

Leading zeros transmitted

6 E/W Indicator E Longitude hemisphere indicator

'E' = East

'W' = West

7 Speed over ground 000.0 Speed over ground in knots (000.0 ~ 999.9)

8 Course over ground 000.0 Course over ground in degrees (000.0 ~ 359.9)

9 UTC Date 211200 UTC date of position fix, ddmmyy format