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Using the 86100C
Eye/Mask Mode
Eye/Mask Mode
Eye/Mask mode allows you to perform NRZ (Non-Return to Zero), or RZ
(Return to Zero) eye diagram measurements and eye mask tests. The eye dia-
gram is typically produced by triggering the instrument with a synchronous
clock signal. Use the Setup menu to select NRZ or RZ measurements.
Eye/Mask mode measurements only work when an eye diagram, and not a
pulse, is present on the screen. Measurements made on a pulse waveform
while in Eye/Mask mode will fail.
Use the Autoscale button to ensure that an optimum eye diagram is displayed,
which consists of a full display of the eye in addition to portions of the wave-
form preceding and following the eye. The measurement toolbars provide
measurements such as rise time, fall time, jitter, and extinction ratio, as well
as the mask test start and stop controls. Eye measurement and mask test
results appear below the display graticule.
To learn more about the Eye/Mask mode consult the Help.
Figure 2-6. Eye/Mask Mode
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