User manual

USB Dongle Series Model:UD-731R

UniTraQ International Corp. RoHS compliance.

2010,08, Version 1.0

Field Name Example Description

1 Number of message 3 Total number of GSV messages to be transmitted (1-3)

2 Sequence number 1 Sequence number of current GSV message

3 Satellites in view 09 Total number of satellites in view (00 ~ 12)

4 Satellite ID 28 Satellite ID number, GPS: 01 ~ 32, SBAS: 33 ~ 64 (33 =

PRN120)

5 Elevation 81 Satellite elevation in degrees, (00 ~ 90)

6 Azimuth 225 Satellite azimuth angle in degrees, (000 ~ 359 )

7 SNR 41 C/No in dB (00 ~ 99)

Null when not tracking

8 Checksum 78

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.mmmm,a,dddmm.mmmm,a,x.x,x.x,ddmmyy,x.x,a,a*hh<CR><LF>

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

Example:

$GPRMC,092204.999,A,4250.5589,S,14718.5084,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 4250.5589 Latitude in dddmm.mmmm format

Leading zeros transmitted

4 N/S indicator S Latitude hemisphere indicator