Arbiter Systems 1092A, Operation Manual

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28 Startup and Basic Operation
for DEVIATION, it will indicate the 1-PPS Deviation (updates once per second) and Sigma. If
there are no records, the second line will indicate “NO DATA”.
Event Display
Ch A EVENT nnn
ddd:hh:ss.sssssss
Where:
nnn = event number(001 to 400)
ddd = day of year of the event(1 to 366)
hh = hour of the event(00 to 23)
mm = minute of the event(00 to 59)
ss.sssssss = second and fractional seconds of the event
Deviation Display
1 PPS: 0.00 µ S
SIGMA: 0.00 µ S
6.2.5 IRIG-B Time Data
IRIG-B time is sent out immediately, when the clock is powered ON, from any timing output port
configured for IRIG-B as indicated above. Time will not be accurate until the clock is locked to
the GPS. See also, check out-of-lock indication in Section 2.2.2 and Section 7.5.
6.3 Clock Status Display Mode
When first applying power to the clock, the display will indicate several startup messages, then
will revert to Clock Status mode condition called STARTUP. After a short time, while the GPS
receiver begins collecting data from the GPS, it will indicate either UNLOCKED (XX Min), NOT
STABILIZED, LOCKED–AUTO SURVEY, or LOCKED–POSITION HOLD. Various faults, if
they exist, may be indicated as follows:
•
Not Stabilized
•
Out Of Lock
• Time Error
•
VCXO Tuning Error
•
Receiver Failure
For additional information on internal faults, please see Chapter 2, Front and Rear Panels, and
Section 10.2.5, System Status command.
6.4 Time Display Modes – 1092B and 1093B/C
After establishing GPS satellite synchronization, date and time information can be displayed on
the front panel by pressing the TIME key and scrolling through the four available displays. Press
this key to select the time display mode (UTC or Local) time data (Date/Time or Day of Year).