OmniTek Ultra XR, User Manual

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2–54 XR-56-201 5 Viewer 03/18
Viewer
IMPORTANT: Timing differences between the constituent Inputs to the video that is currently being
analysed can be made without any additional set-up, while measurements against an external
reference signal just require a suitable Reference signal to be plugged into the "Sync/CVBS"
(Composite) port on the Ultra. If, however, you are intending the compare the Ultra’s measurements
against the measurements produced by another system, there may be other settings to make in order
to ensure that these measurements are completely compatible. There is also the option of presenting
the results using the ‘Line-Based’ format of some other T&M systems and adjusting the timings
to match those produced by a system that includes a D/A converter. These additional actions are
described in the following sections.
Timing Controls
The Timing configuration section, in the Configuration - Video menu, controls how the system
measures the interlink timing of video sources and the relative timing against an external analogue
reference signal.
See the "Timing Section" section for details
A number of different buttons appear when the Timing tile is selected and the corresponding
inputs are connected to the unit. The choices will depend on how the unit’s inputs and outputs are
configured, but here are some examples:
Ref=Sync/CVBS
when selected all input timing measurements will be made against the analogue
locking reference “Sync/CVBS” input signal.
Ref=EYE
when selected all input timing measurements will be made against the SDI input
signal connected to the “Eye” input.
Ref=SDI 1 Input
when selected all input timing measurements will be made against the SDI input
signal connected to the “SDI 1” input.
Ref=AUX 1 Input
when selected all input timing measurements will be made against the SDI input
signal connected to the “AUX 1” input.
Ref=AUX 3 Output
when selected all input timing measurements will be made against the
generated SDI output signal connected to “AUX 3”. With a generator output
selected, the propagation delay of any equipment under test can be measured
with respect to its input signal
Measurement against an External Reference Signal
The signal used as the external Reference needs to meet the following three criteria:
1. It needs to be set up to deliver video of the same video standard as the Inputs under test.
2. The reference signal used may either be Analogue Black (0.3V p-p) or Tri-level (0.6V p-p).
3. It needs to be fed into the “Sync /CVCS” (Composite) connector on the rear panel of the Ultra.
Output
Input
SDI 1
AUX 1 AUX 2 AUX 3 AUX 4
Sync / CVBS
USB
Input Output
SDI 2 SDI 3 SDI 4 Eye
HDMI
Input Output
DisplayPort
Analogue studio reference
The way that measurements are made will be different depending on the settings in the “Timing”
section of the
Configuration
-
Video
menu. The
Line Based Timings
and
SMPTE RP168
settings: