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Chapter 3 Visual User Interface
Receiver Status Screen Data
Operating and Programming Guide 3-11
Receiver Status Screen Data
This section defines the data displayed in the Receiver Status Screen,
shown in Figure 3-6.
Figure 3-6. Sample Status Screen
The status screen has three major sections:
• SYNCHRONIZATION
• ACQUISITION
• HEALTH MONITOR
The SYNCHRONIZATION section of the status screen shows how the
GPS Receiver’s SmartClock
technology is progressing towards its
objective, which is to synchronize the Receiver’s oscillator to the 1 PPS
reference signal produced by the Receiver’s internal GPS Engine.
The ACQUISITION section of the status screen shows how the
Receiver’s internal GPS Engine is progressing towards its objective,
which is to produce an accurate internal 1 PPS reference signal. It does
so through tracking GPS satellites.
The HEALTH MONITOR section of the status screen summarizes the
overall health of the product.
SYNCHRONIZATION
Receiver Status
---------------------------- ----------------------------
[
Outputs Valid
]
..........................................
................................................
......................................................
ACQUISITION
ELEV MASK
Not Tracking: 1
Locked to GPS
UTC
ANT DLY
MODE
AVG LAT
AVG LON
AVG HGT
HEALTH MONITOR
PRN
Recovery
Holdover
Power-up
SmartClock Mode
Tracking: 6
Self Test: OK Int Pwr: OK Oven Pwr: OK OCXO: OK EFC: OK GPS Rcv: OK
[ OK ]
Time
GPS 1PPS Synchronized to UTC
Position
Reference Outputs
El Az
2 49 243
10 deg
30
1.000 us
[GPS 1PPS Valid]
23:59:59 31 Dec 1995
120 ns
Survey: 17.5% complete
N
W
37:19:32.264
121:59:52.112
+41.86 m (GPS)
>>
TFOM FFOM
HOLD THR
1PPS TI +7.2 ns relative to GPS
Predict 49.0 us/initial 24 hrs
Holdover Uncertainty
16 24 282
18 38 154
19 65 52
27 62 327
31 34 61
PRN El Az
14 11 82
+1 leap second pending
C/N
49
46
47
49
49
47