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MiLLennium GPSCard SW Version 4.503/4.52 Command Descriptions Manual Rev 2 263
Table D-7 is referenced by the ETSA/B, and RGEA/B/D logs.
Table D-7, Bits 0 - 3: Channel Tracking State
Table D-7,
Bits 12-14: Correlator Spacing
Table D-8 Ambiguity Types
Table D-9 Searcher Status
State Description State Description
0 L1 Idle 6 L1 Steering
1 L1 Sky search 7 L1 Frequency-lock loop
2 L1 Wide frequency band pull-in 8 L2 Idle
3 L1 Narrow frequency band pull-in 9 L2 P-code alignment
4 L1 Phase-lock loop 10 L2 Search
5 L1 Re-acquisition 11 L2 Phase-lock loop
Higher numbers are reserved for future use
State Description
0 Unknown: this only appears in versions of software previous to x.45, which didn’t use this field
1 Standard correlator: spacing = 1 chip
2 Narrow Correlator tracking technology: spacing < 1 chip
Higher numbers are reserved for future use
Ambiguity Type Definition
0 L1 only floating
1 Wide lane fixed integer
2 Reserved
3 Narrow lane floating
4 Iono–free floating
5 Reserved
6 Narrow lane fixed integer
7 Iono–free fixed discrete
8 L1 only fixed integer
9 Reserved
10 Undefined type
Higher numbers are reserved for future use
Searcher Status Definition
0 No search requested
1 Searcher buffering measurements
2 Currently searching
3 Search decision made
4 Hand-off to L1 and L2 complete
Higher numbers are reserved for future use