HP 54750A, User Manual, Page: 215 / 478

Front P anel Measure Section
The HP 83480A and HP 54750A can perform several common
oscilloscope-type measurements , such as rise time , peak-to-peak voltage , and
overshoot. In addition to making these measurements on simple repetitive
pulse waveforms , the instrument can also make the measurement on more
complex signals , such as an eye diagram. In many cases , the measurement
algorithm for a two-level measurement, such as an eye diagram, is dierent
than the algorithm used when measuring a pulse waveform. In most cases ,
the measurement is made on a color graded database . A basic discussion of
the process of measurement is found in Chapter 7.
Before making signal measurements , it is important the instrument is
correctly congured in terms of measurement denitions versus the signal
type to be measured. This is typically achieved by using the Dene Measure
menu.
The following information lists the various utilities that are \single key"
measurements . That is , the measurement has a dedicated key , typically a
shifted function. Several other similar measurements also exist as submenus
to the More Meas key . Measurement considerations and key paths are
provided. In cases involving amplitude measurements , such as Vpp , the
optical channels can display the equivalent power measurement, Ppp .
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1time
Used to measure the time between two user-dened points . Use Dene
Measure to dene the edges and thresholds .
K ey Path 4
Shift
5
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1time
8-5