116
WAAS G-III Reference Receiver User Manual Rev 1
Chapter 5
Data Logs
Table 46: Channel Tracking Status
Nibble
Bit #
Mask
Description
Range Value
N
0
0
0x0000001F
Tracking State
0 = C/A idle
1 = C/A sky search
2 = C/A wide frequency band pull-in
3 = C/A narrow frequency band pull-in
4 = C/A phase-lock loop
5 = C/A reacquisition
6 = C/A steering
7 = C/A frequency lock-loop
8 = P(Y) idle
9 = P(Y) P-code alignment
10 = P(Y) search
11 = P(Y) phase-lock loop
1
2
3
N
1
4
5
0x000003E0
SV channel number
0 - 25
6
7
N
2
8
9
10
0x00000400
Phase lock flag
0 = not locked
1 = locked
11
0x00000800
Measurement data valid (set to true
once the navigation data is first framed)
0 = false
1 = true
N
3
12
0x00001000
Code locked flag
0 = not locked
1 = locked
13
0x0000E000
Reserved
14
15
N
4
16
0x00070000
Satellite system
0 = GPS
2 = GEO
17
18
19
0x00080000
Reserved
N
5
20
0x00100000
Grouping
0 = not grouped
1 = grouped
21
0x00600000
Frequency
0 = L1
1 = L2
22
23
0x03800000
Code Type
0 = C/A
1 = P
2 = P codeless
N
6
24
25
26
0x7C000000
Reserved
27
N
7
28
29
30
31
0x80000000
Channel assignment
0 = automatic
1 = forced