Symmetricom 58503B, Руководство по началу работы

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Chapter 1 Getting Started
Powering Up the Receiver
Getting Started Guide 1-17
Figure 1-4. Sample Status Screen (58503B screen shown)
If you need to customize the Receiver operation, see the section titled
“Customizing the Receiver Operation” on page 1-20 for a list of key
things you may want to perform to customize the operating parameters
of the Receiver.
To Understand the Receiver Status Screen Data
One of the key indicators on the screen is the
ACQUISITION
status indicator. It shows “ GPS 1 PPS Valid ” as soon as satellite
information is sufficient.
Refer to Chapter 3, “Visual User Interface,” in the 58503B/59551A
Operating and Programming Guide for a tutorial on how to use the
status screen (shown in Figure 1-4). This chapter of the operating and
programming guide also provides a reference section that defines the
different data indicated in the status screen.
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
3 0
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
44
49
43
44
38