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D Logs summary
184 MiLLennium Command Descriptions Manual
Table D-7 Channel Tracking Status
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
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.4x, which didn’t use this field
1 Standard correlator: spacing = 1 chip
2 Narrow Correlator: spacing < 1 chip
Higher numbers are reserved for future use
N7 N6 N5 N4 N3 N2 N1 N0 <- <- Nibble Number
313029282726252423222120191817161514131211109876543210
Bit Description Range Values Hex.
lsb = 0 1
1 Tracking st at e 0 - 11 See bel ow 2
24
38
4 10
5 0 - n (0 = first, n = last) 20
6 Channel number (n depends on GPSCar d) 40
7 80
8 100
9 Phase loc k f lag 1 = Loc k, 0 = Not locked 200
10 Par it y k nown f lag 1 = Known, 0 = Not known 400
11 Code locked f l ag 1 = Lock, 0 = Not locked 800
12 1000
13 Corr elat or spacing 0 - 7 See bel ow 2000
14 4000
15 0=GPS 3= Pseudolit e GPS 8000
16 Sat ellit e syst em 1=GLONASS 4-7 Reserved 10000
17 2=WAAS 20000
18 Reser ved 40000
19 Groupi ng 1 = Grouped, 0 = Not grouped 80000
20 Frequency 1 = L2, 0 = L1 100000
21 Code t ype 0 = C/ A 2 = P-c odeless 200000
22 1 = P 3 = Reserv ed 400000
23 Forward er ror corr ecti 1 = FEC enabled, 0 = no FEC 800000
24
: Reserved
29
30 Ext er nal r ange 1 = Ext . r ange, 0 = Int . r ange
31 Channel assignment 1 = Forced, 0 = Aut omat ic
model)
Foreword error correction