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A-124 Acutime 2000 Synchronization Kit User Guide
Trimble Standard Interface Protocol
A
The tracking status flag allows precise monitoring of receiver
tracking status and allows a host system to determine whether the
time output by the receiver is valid. After self-survey has completed,
the receiver only needs to track one satellite to maintain precise
synchronization with UTC.
Table A-99 Tracking Status Flag Definitions
Flag Value Status Meaning
0 DOING_FIXES Receiver is navigating.
1 GOOD_1SV Receiver is timing using one satellite
2 APPX_1SV Approximate time
3 NEED_TIME Start-up
4 NEED_INITALIZATION Start-up
5 PDOP_HIGH Dilution of Precision too High
6 BAD_1SV Satellite is unusable
7 0SVs No satellites usable
8 1SV Only 1 satellite usable
9 2SVs Only 2 satellites usable
10 3SVs Only 3 satellites usable
11 NO_INTEGRITY Invalid solution
12 DCORR_GEN Differential corrections
13 OVERDET_CLK Overdetermined fixes