USB Dongle Series Model:UD-731N
UniTraQ International Corp.
RoHS compliance
.
2011,01, Version 1.1
16
4: Real Time Kinematic. System used in RTK mode with
fixed integers
5: Float RTK. Satellite system used in RTK mode. Floating
integers
6: Estimated (dead reckoning) Mode
7: Manual Input Mode
8: Simulator Mode
7
Satellites Used
08
Number of satellites in use, (00 ~ 12)
8 HDOP
1.1
Horizontal
dilution
of precision, (00.0 ~ 99.9)
9
Altitude
108.7
mean sea level (geoid), (-9999.9 ~ 17999.9)
10
Geoid Separation
Geoid separation in meters according to WGS-84 ellipsoid
(-999.9 ~ 9999.9)
11
DGPS Age
Age of DGPS data since last valid RTCM transmission in
xxx format (seconds)
NULL when DGPS not used
12
DGPS Station ID
0000
Differential reference station ID, 0000 ~ 1023
NULL when DGPS not used
13 Checksum
0E
Note:
The checksum field starts with a ‘*’ and consists of 2 characters representing a hex
number. The checksum is the exclusive OR of all characters between ‘$’ and ‘*’.
10.2 GLL - LATITUDE AND LONGITUDE, WITH TIME OF POSITION FIX
AND STATUS
Latitude and longitude of current position, time, and status.
Structure:
$GPGLL,ddmm.mmmmm,a,dddmm.mmmmm,a,hhmmss.sss,A,a*hh<CR><LF>
1 2 3 4 5 6 7 8
Example:
$GPGLL,4250.55899,S,14718.50849,E,092204.999,A,A*2D<CR><LF>