Video Session
WFM8200 and WFM8300 Waveform Monitors
The Video Session display contains several performance parameters that you can
view to get an overview of the video input signal. This instrument maintains a
running video status session. (See Figure 36.)
Figure 36: Video Session display of HD signal
SDI elements of the Video Session display. The following elements are visible
when SDI 1A or 1B is the selected signal:
Input: Shows the selected input source.
Signal: Indicates whether the instrument is locked to the selected input.
Effective: Shows, in order, the detected format, sample structure, and
transport of the input signal.
Selected: Shows, in order, the selected format, sample structure, and transport
of the instrument.
352M payload: Indicates the presence of a SMPTE 352M payload.
SAV Place Err: Indicates whether a Start-of-Active-Video Placement Error
has occurred.
Field Length Err: Indicates whether a Field Length Error has occurred.
Line Length Err: Indicates whether a Line Length Error has occurred.
Ancilliary Data: Indicates whether Ancillary Data is present in the video
signal. The displayed values are either Present or None for SD signals, or Y
and C Present and None for HD and 3 Gb/s signals.
F1 AP CRC: For SD signals only, calculates and displays the active picture
CRC (Cyclical Redundancy Check) for field one in hexadecimal. The
Display Information
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