Agilent Technologies 54657A, User Manual

Page: 32 / 89

User Thresholds
1
Press
Time
.
2
Press the
Next Menu
softkey until the
Define Thresholds
softkey is
displayed on the far left side.
3
Press the
Define Thresholds
softkey.
4
Press the desired
Thresholds
softkey.
A softkey menu with six softkey choices appears. Five of them are related to
selecting thresholds.
•
10% 90% Rise time/fall time measurements performed at the 10% (lower)
and 90% (upper) levels. Frequency, period, duty cycle, positive pulse
width, and negative pulse width measurements will be performed at the
50% level.
•
20% 80%
Rise time/fall time measurements performed at the 20% (lower)
and 80% (upper) levels. Frequency, period, duty cycle, positive pulse
width, and negative pulse width measurements will be performed at the
50% level.
Figure 2– 5
Operating the Measurement/Storage Module
Setting Thresholds
2–16