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• GLO means GLONASS system time.
• UTCus means UTC(USNO).
• UTCsu means UTC(SU).
These radio buttons are associated with the receiver parameters /par/dev/pps/a/time and
/par/dev/pps/b/time, respectively.
If the user selected the Tied with Ref. Time checkbox, the receiver will synchronize the 1PPS
signal with the chosen reference time. Otherwise, 1PPS will be synchronized either with the re-
ceiver’s internal clock or with an external frequency (in the latter case the parameter /par/frq/input
must be set to ext).
In order to enable or adjust the event input function, use the controls described below.
The checkboxes Event A Enabled and Event B Enabled correspond to the receiver pa-
rameters /par/dev/event/a/in and /par/dev/event/b/in, respectively. With these controls, the user enables
the receiver to measure and log event times in the specified reference time with high accuracy.
If the Clock Synchronization checkboxes are selected, the receiver executes a one-time
synchronization of its one-millisecond cycle grid with the corresponding edge of the event signal.
These checkboxes are associated with the receiver parameters /par/dev/event/a/lock and
/par/dev/event/b/lock, respectively.
The Status indicator shows whether the receiver clock is actually being synchronized with the
event signals or not. If you see on in the field, it means the synchronization has been done success-
fully. These fields relate to the receiver parameters /par/dev/event/a/locked and /par/dev/event/b/locked,
respectively.
In some cases, however, it can be necessary to perform the synchronization again. For this purpose
click the Repeat Synchronization button several times until on appears.
The Rise and Fall radio buttons serve to measure the time of either the rising edge or falling
edge of the input event signal. These radio buttons correspond to the receiver parameters
/par/dev/event/a/edge and /par/dev/event/b/edge, respectively.
The Ref. Time radio button group sets the reference time scale that the event reception time will
be synchronized with. These radio buttons are associated with the receiver parameters
/par/dev/event/a/time and /par/dev/event/b/time.
With the Tied with Ref. Time checkboxes, the receiver is instructed to measure the event re-
ception time in the selected reference time
with
or
without
consideration for the computed receiver
clock offset. These checkboxes relate to the receiver parameters /par/dev/event/a/tied and
/par/dev/event/b/tied, respectively.
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