User`s guide

Chapter 5 - I/O Commands
Geometry
dd =current DOP 0..999 (0.0 to 99.9 DOP)
(PDOP for 3D fix, HDOP for 2D fix,
00.0 otherwise)
Satellite Data
n = number of visible satellites 0…12
t = number of tracked satellites 0…12
ss receiver status
(msb) Bits 15-13: 111 = 3D Fix
110 = 2D Fix
101 = Propagate Mode
100 = Position Hold
011 = Acquiring Satellites
010 = Bad Geometry
001 = Reserved
000 = Reserved
Bits 12-11: Reserved
Bit 10: Receiver in narrow-band tracking mode (M12+ timing
receiver only)
Bit 9: Fast Acquisition Position
Bit 8: Filter Reset To Raw GPS Solution
Bit 7: Cold Start (no almanac, almanac out of date or have
almanac but time or position unknown)
Bit 6: Differential Fix
Bit 5: Position Lock
Bit 4: Autosurvey Mode
Bit 3: Insufficient Visible Satellites
Bits 2-1: Antenna Sense 00 = OK
01 = Overcurrent
10 = Undercurrent
11 = No bias voltage
Bit 0: Code Location 0 = EXTERNAL
1 = INTERNAL
rr Reserved
vvvvvv = ID tag 6 characters (0x20 to 0x7e)
C = checksum
Message Length: 54 bytes .
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05
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