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WAAS G-III Reference Receiver User Manual Rev 1
Chapter 5
Data Logs
Table 35: AGC Status Word
Bit
Description
0-3
Card ID
4-6
RF Type:
0 = L1
1 = L2
2 = L5
7
Active flag:
0 = Card is not controlling the AGC for this frequency
1 = Card is controlling the AGC for this frequency
8
Bin Skew:
0 = Bin Skew Not Present
1 = Bin Skew Present
9-10
AGC Calibrated:
0 = Coarse Calibration
1 = Fine Calibration
11-13
ADC Range:
Indicates which 3 bits of the 8-bit ADC output are currently being used by the receiver:
0 = Bits 7, 6, 5
1 = Bits 7, 5, 4
2 = Bits 7, 4, 3
3 = Bits 7, 3, 2
4 = Bits 7, 2, 1
5 = Bits 7, 1, 0
14-16
Method of Noise Floor Calculation:
1 = AGC
2 = Post Correlation
17
Bin Count Overflow:
A flag identifying when more than 1 bin was filled with 1023+ samples.
0 = Less than 2 bins completely filled
1 = 2+ bins completely filled
18
Railed Gain:
A flag identifying when the VGA is railed high/low for 3+ consecutive seconds.
0 = VGA not railed
1 = VGA railed for 3+ seconds
19
Bins Not Full:
A flag identifying when all the bins contain 1 or more but less than 1023 samples.
0 = One of more bins filled
1 = All bins not filled
20
Bins Empty:
A flag identifying when all the bins are empty.
0 = Bins contain data
1 = All bins are empty
21-31
Reserved