58
•
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.
