DOC 4380A
4380A O & M Manual
68
098-00723-000
– Jul 2017 Revision 4.0
SyncSystem 4380A O&M Manual
4380A>status kas2
[aging] 1.100073337398044e-21
[coldstart_time] 2015-08-05T14:34:30Z
[deviation_scalar] 1.00000000000
[frequency] -1.286384790183644e-13
[phase] 1.287980469829245e-09
[ptd] 1.463024104000000e-09
[steer] -2.227125689387322e-10
[warmstart_time] N/A
Users may use the
jam_
sync command to synchronize the system 1 PPS to the reference input.
4380A>jam_sync
[OK] 2015-08-08T15:56:04Z
Then use the
status kas2
command to ensure the internal clock offset has jumped to the reference.
4380A>status kas2
[aging] 2.498557764780871e-24
[coldstart_time] 2015-08-08T14:59:54Z
[deviation_scalar] 1.00000000000
[frequency] 7.612250351220100e-13
[phase] -7.549350148732179e-09
[ptd] -7.227491861000000e-09
[steer] -2.218719571828842e-10
[warmstart_time] N/A
[OK] 2015-08-08T15:57:29Z
Note:
Using the
jam_sync
command will cause the internal clock to steer very hard in order to synchronize
with the external reference.
6.7 External Reference
If you suspect there may be issues with the external reference use the
status health
and
status reference
commands to look at the status of the external reference and internal clocks.
Note:
The example below has been edited to show the relevant fields in the system health status for the
clocks.
4380A>status health
[clock_freq_step]
[active] false
[occurrences] 0
[clock_phase_step]
[active] false
[occurrences] 0
[clock_starvation]
[active] false
[occurrences] 0
[clock_steer]
[active] false
[occurrences] 0
[clock_wander]
[active] false
[occurrences] 0
Reference_type = cesium
4380A>status reference
[frequency]
[external]
[communications] N/A
[locked] true
[signal] present
[internal]
[locked] true
[hp5071]
[can_communicate] false
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