HP 54750A, User Manual, Page: 93 / 478

Eye , Mask and Eyeline Mode Measurement T utorials
Making Eye Diagram Measurements
Making the measurement
F our active eye measurements may be simultaneously displayed at the bottom
left side of the instrument display . Previously setup measurements remain
active as new measurements are added to the bottom of the list. As these
new measurements are made , the list scrolls up . If a fth measurement is
added, the rst measurement is deactivated and the measurement is scrolled
o the display .
T o access the eye measurements described at the beginning of this section,
press:
4 Shift 5
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Meas Eye
A column of softkeys on the right side of the instrument's screen, titled
\Measure eye ", is displayed.
N O T E
Eye parametric measurements are made from histogram analysis of the instrument's database , rather
than directly on the active channel. T o make these measurements, the color grade displa y mode
must be turned on. When selecting a measurement from the
NNNNNNNNNNNNNNNNNNNNNNNNNN
Meas Eye menu, the instrument
will automatically turn on the color grade mode , if it is not already activated. When selecting a
measurement from the choices above the numeric ke ypad, the user must turn on color grade prior to
activating the measurement.
N O T E
Only one channel at a time should be active to make e ye measurements and other measurements on
the color grade database .
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