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 />
POSITION/STATUS/DATA MESSAGE (12 CHANNEL)<br />
Motorola Binary Format<br />
Geometry<br />
dd current DOP(0.1 res) 0…999 (0.0 to 99.9 DOP)<br />
(PDOP for 3D fix, HDOP for 2D fix, 0 No Fix)<br />
Satellite Data<br />
n number of visible satellites 0…12<br />
t number of tracked satellites 0…12<br />
Channel Data<br />
i SVID 0…37<br />
m mode 0…8<br />
s signal strength 0…255<br />
i IODE 0…255<br />
dd channel status (16 bits)<br />
(msb) Bit 15: Reserved<br />
Bit 14: Reserved<br />
Bit 13: Reserved<br />
Bit 12: Reserved<br />
Bit 11: Used For Time<br />
Bit 10: Differential Corrections Available<br />
Bit 9: Invalid Data<br />
Bit 8: Parity Error<br />
Bit 7: Used For Position Fix<br />
Bit 6: Satellite Momentum Alert Flag<br />
Bit 5: Satellite Anti-Spoof Flag Set<br />
Bit 4: Satellite Reported Unhealthy<br />
Bits 3-0: Satellite Accuracy as follows<br />
(per para 20.3.3.3.1.3 ICD-GPS-200)<br />
0000 (0) 0.00
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