SDI Eye and Jitter Measurements
How-to Guide
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14
Measuring Jitter within an SDI Signal
Jitter will be shown as deviation and widening of the transition within the eye display as shown in
Figure 11. This is caused by the transitions occurring at slightly different times.
Figure 11.
Jitter shown within eye display.
1. Select one of the tiles (1, 2, 3 or 4) and press the
PHY
button.
2. Push and Hold the
PHY
button to enable the menu.
3. Using the up and down arrows to navigate to
Display Type
and press the right arrow to select the sub
menu.
4. Use the up and down arrows to select the
Jitter Display
.
5. Jitter can be observed at line or field rate by pushing the
SWEEP
button and toggling between line and
field sweep.
6. Push and Hold the
SWEEP
button to select the sweep mode and select
2Field
to show the variation of
jitter over two video fields.
7. Push and Hold the
GAIN
button to change the gain to
x1, x2, or x5
modes.
8. If additional gain is required the VAR Gain can be enable and increased to a maximum of ten times
gain if required as shown in Figure 12a
