Motorola M12 Oncore User Manual page 88

Response Message
(Continued)
Motorola GPS Products
M12 Oncore User' s Guide Supplement
Revision 1.0 01/25/00
SHORT POSITION/ MESSAGE (12 CHANNEL)
Motorola Binary Format
Geometry
dd current DOP
(0.1 res)
Satellite Data
n number of visible satellite
t number of tracked satellite
ss receiver status
(msb) Bit 15-13:
Bit 12-10:
Bit 9:
Bit 8:
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2-1:
Bit 0:
rr Reserved
vvvvvv ID tag
C checksum
Message Length: 54 bytes
0...999 (0.0 to 99.9 DOP)
(PDOP for 3D fix, HDOP for 2D fix,
0 otherwise)
0...12
0...12
111 = 3D Fix
110 = 2D Fix
101 = Propagate Mode
100 = Position Hold
011 = Acquiring Satellites
010 = Bad Geometry
001 = Reserved
000 = Reserved
Reserved
Fast Acquisition Position
Filter Reset To Raw GPS Solution
Cold Start (no almanac, almanac out
of date or have almanac but time or
position unknown)
Differential Fix
Position Lock
Autosurvey Mode
Insufficient Visible Satellites
Antenna Sense 00 = OK
01 = OC
10 = UC
11 = NV
Code Location 0 = EXTERNAL
1 = INTERNAL
6 characters (0x20 to 0x7e)
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