Eye Display - Tektronix WVR8200 User Manual

Elements of the
Audio/Video Delay display
Audio/Video display
pop-up menu

Eye display

WVR8200 and WVR8300 User Manual
AV Delay bar: Shows the timing relative to audio
Measured AV Delay: Shows the timing difference measurement
Manual Offset: Shows the manual offset value
Adjusted AV Delay: Shows the adjusted timing difference
AV Delay Enable: Choose from On or Off
Clear Offset: Press the SEL button to clear the offset
Save Offset: Press the SEL button to save the offset
The Eye display is accessible from the EYE button on the front panel of your
instrument if it has Option EYE, Option PHY, or Option PHY3. This display
presents an eye pattern diagram of the SDI input, which lets you verify electrical
characteristics of the SDI transport layer. Measure analog characteristics of the
SDI input on the eye pattern using the graticule or voltage and time cursors.
Configure your instrument to show multiple Eye displays, each of which is
controlled by one of two jitter engines: The Jitter1 engine controls Eye displays in
the top two tiles and the Jitter2 engine controls Eye displays in the bottom two
tiles. The two jitter engines allow you to set different filter bandwidths in the
upper and lower tiles allowing you to monitor both timing and alignment jitter
at the same time.
A jitter thermometer in the Eye display graphically relates the jitter measurement
to alarm limits, and readouts display jitter magnitude. When displaying the Eye
waveform in a single, full-screen tile, the measurement results and a histogram
display are included with the Eye waveform. (See Figure 42.)
NOTE.
See the Monitoring the SDI physical layer section for information about
taking Eye measurements. (See page 119.)
Display information
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