Timing a Studio: Timing multiple inputs to a router
Use the
Relative to:
function to set the offset between a master signal and a
reference signal as the zero-point reference for time-down applications. The
Relative to:
box indicates the chosen zero point for the timing display:
■
Rear Panel.
In this mode (default), the offset is zero when the measured
signal input and reference are at the same timing at the reference at the
instrument rear panel. This setting was used in the Timing Display Method
procedure.
■
Saved Offset.
In this mode, you can save the timing from a master signal
relative to the reference as the zero point offset. Then route other inputs and
measure relative to this saved offset.
To time the inputs to a
router
1.
Perform steps 1 through 5 of the previous procedure.
2.
Route the signal you want as the master to the appropriate input, SDI or
Composite, and terminate properly.
3.
Route the reference signal to the reference input and terminate appropriately.
4.
Save the timing offset for the master input (
MEAS > Save Offset > SEL
)
and select the
Relative to: Saved Offset
mode from the pop-up menu.
NOTE.
You cannot save the timing offset if either the input or reference is
missing or unlocked. You also cannot save a reference when in internal
mode. Saving an offset in these conditions would lead to misleading results
so it is not allowed by the instrument. A warning message will appear on the
screen if you attempt to save the offset when it is not allowed.
5.
Now select other inputs to the router to be connected to the instrument. For
each input, the relative timing will be displayed.
6.
Adjust the timing offset at the master sync source to time down the inputs to
the router to match the master.
Application examples
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