UniTraQ International Corp.
RoHS compliance
2007, Version 1.1
8
Eastern Star 7 series GT-3731R
GPS Receiver
9.3 GSA - GPS DOP AND ACTIVE SATELLITES
GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS
sentence and DOP values.
Structure:
$GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>
1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 7
Example:
$GPGSA,A,3,01,20,19,13,,,,,,,,,40.4,24.4,32.2*0A<CR><LF>
Field Name
Example
Description
1 Mode
A
Mode
‘M’ = Manual, forced to operate in 2D or 3D mode
‘A’ = Automatic, allowed to automatically switch 2D/3D
2 Mode
3
Fix
type
1 = Fix not available
2 = 2D
3 = 3D
3
Satellite used 1~12 01,20,19,13,,,,,
,,,,
Satellite ID number, 01 to 32, of satellite used in solution,
up to 12 transmitted
4
PDOP
40.4
Position dilution of precision (00.0 to 99.9)
5 HDOP
24.4
Horizontal
dilution
of precision (00.0 to 99.9)
6
VDOP
32.2
Vertical dilution of precision (00.0 to 99.9)
7 Checksum
0A
