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OmniTek OTR 1001 User Guide, v3.1a
T-13
Analyser 1 source, Analyser 2 source (where included)
The OTR 1001 is supplied set up to use the SDI inputs as its source of video to analyse, with
Analyser 1 taking its source from SDI Input 1 and Analyser 2 taking its source from SDI Input 2.
Where one of the optional Eye/Jitter cards has been installed in the OTR, the OTR needs to be
configured to take its source from the Eye/Jitter card instead. This is done by setting either or
both of these options to point to the corresponding input on the Eye/Jitter card (i.e. Analyser 1
pointing to Eye Input 1 and/or Analyser 2 pointing to Eye Input 2).
The Analysers can also be set to use the built-in Generator 1 or Generator 2 (where fitted) as
their source.
Note:
Making an Eye/Jitter card input or the Generator the source prevents access to the
corresponding SDI input. Before the SDI inputs can be used again, at least one analyser needs to
be returned to taking its source from the corresponding SDI input.
Amplitude Measurement Units
This setting selects the units in which data on waveform, gamut and histogram displays are
expressed between the actual digital values, percentage IRE values and millivolts.
Always show ‘SDI stream 2’ buttons
The number of streams associated with any SDI input is normally dictated by the current video
standard. Ticking the ‘
Always show…
’ option forces the OTR to associate two streams with SDI
Input 1. This might be used, for example, to create a 3G Level B dual-stream set-up without
actually having to attach a 3G Level B dual-stream source.
Postpone video loss detection
Ticking this option delays the clearance of accumulated status values following the loss of the
signal being analysed.
SMPTE RP168 analog reference timing
The basic analog/digital timing relationship is defined as illustrated in Figure 3 of SMPTE
274M. The process of timing an SDI input against an analog reference, however, is relatively
complex. The methodology described in SMPTE RP168 specifies that the SDI signal should be
converted to analog, introducing a D/A converter into the measurement which in turn introduces
a delay. In some common implementations, this delay is about three microseconds.
The
SMPTE RP168 analog reference timing
option allows you to align measurements of the
timing of SD/HD signals made on the OTR with measurements made using or assuming such a D/A
converter by adjusting the timing measurements made on the OTR to include the above delay.
Ignore Smpte (Override)
The OTR normally checks that the input Video Standard it detects is consistent with any
SMPTE 352 packet included in the video at least with regard to the interface type, the picture
rate and the sampling structure. When this option is ticked, the OTR will not make this check.
This option may be useful to select if the OTR has difficulty in locking to the current input,
possibly because the SMPTE 352 packet that specifies the video standard has become corrupted.
Force Dual-Link (Override)
The OTR 1001 is normally able to identify when the video fed to two separate inputs form the
two parts of a single dual-link source. When this option is ticked, however, the OTR will ignore
any SMPTE 352 packet and automatically treat the two incoming sources as a single dual-link
source.
Note:
Where the OTR is fitted with mouse & keyboard, this option can also be toggled
from the View window by typing D on the keyboard.
Содержание OTR 1001
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