M12 Oncore Users Guide Supplement - deetc - isel
M12 Oncore Users Guide Supplement - deetc - isel
M12 Oncore Users Guide Supplement - deetc - isel
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Response Message<br />
(Continued)<br />
Motorola GPS Products<br />
<strong>M12</strong> <strong>Oncore</strong> User’s <strong>Guide</strong> <strong>Supplement</strong><br />
Revision 1.0 01/25/00<br />
SHORT POSITION/ MESSAGE (12 CHANNEL)<br />
Motorola Binary Format<br />
Geometry<br />
dd current DOP 0…999 (0.0 to 99.9 DOP)<br />
(0.1 res) (PDOP for 3D fix, HDOP for 2D fix,<br />
0 otherwise)<br />
Satellite Data<br />
n number of visible satellite 0…12<br />
t number of tracked satellite 0…12<br />
ss receiver status<br />
(msb) Bit 15-13: 111 = 3D Fix<br />
110 = 2D Fix<br />
101 = Propagate Mode<br />
100 = Position Hold<br />
011 = Acquiring Satellites<br />
010 = Bad Geometry<br />
001 = Reserved<br />
000 = Reserved<br />
Bit 12-10: Reserved<br />
Bit 9: Fast Acquisition Position<br />
Bit 8: Filter Reset To Raw GPS Solution<br />
Bit 7: Cold Start (no almanac, almanac out<br />
of date or have almanac but time or<br />
position unknown)<br />
Bit 6: Differential Fix<br />
Bit 5: Position Lock<br />
Bit 4: Autosurvey Mode<br />
Bit 3: Insufficient Visible Satellites<br />
Bit 2-1: Antenna Sense 00 = OK<br />
01 = OC<br />
10 = UC<br />
11 = NV<br />
Bit 0: Code Location 0 = EXTERNAL<br />
1 = INTERNAL<br />
rr Reserved<br />
vvvvvv ID tag 6 characters (0x20 to 0x7e)<br />
C checksum<br />
Message Length: 54 bytes<br />
88
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