Omicron Lab OTMC 100, Руководство пользователя

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7.2.1 GPS status page
The GPS status page displays the following information:
Synchronization status Displays the current GPS status of OTMC 100 :
Locked : The internal clock is synchronized and controlled by GPS
satellites. OTMC 100 is able to provide GPS synchronized time.
Holdover : OTMC 100 will enter this state if was in the locked state before
and then temporarily looses time synchronization with GPS satellites. In the
holdover state, the device is still able to provide time information with
possibly reduced accuracy for a certain time.
Unlocked : The internal clock is not synchronized with GPS satellites.
OTMC 100 is not able to provide time information.
Satellites visible Displays the number of satellites OTMC 100 can "see" in the sky.
Satellites usable Displays the number of satellites from which OTMC 100 can receive signals
with sufficient quality.
OTMC 100 requires at least 4 "useable" satellites.
Satellites used Displays the number of satellites actually used by OTMC 100 for time
synchronization and position determination.
TAI time Displays the date and time according to the International Atomic Time (TAI).
TAI is the basis for UTC with the difference that UTC is occasionally
adjusted by adding a leap second (in order to keep the difference between
UTC and UT1 lower than 0.9 seconds).
UTC offset from TAI Displays the difference of UTC with regard to TAI.
Leap 59 and Leap 61 Displays the leap second information as received by the GPS receiver of
OTMC 100 .
OTMC 100 Series User Manual
38 OMICRON