Automatic Time Markers Options - Agilent Technologies HP 1660E Series User Manual

Using the Oscilloscope
The Scope Marker Menu

Automatic time markers options

When you select the T Markers field, a pop-up menu appears. When
you choose the Auto field in the pop-up a pop-up menu for automatic
time marker measurements is displayed.
The automatic time marker measurements are made by setting the
time markers to levels that are a percentage of the top-to-base voltage
value of a waveform or to specific voltage levels. The top-to-base
voltage value of a wavform is typically not the same as the peak-to-peak
voltage value. The oscilloscope determines the top and base voltages
by finding the flattest portions of the top and bottom of the waveform.
The top and base values do not typically include preshoot or overshoot
of the waveform. The peak-to-peak voltage is the difference between
the minimum and maximum voltages found on the waveform.
If the signal is clipped, the time markers will not be automatically
placed.
When searching for the marker patterns, the search will occur only on
that part of the waveform that is displayed, not the entire stored
waveform.
The default Auto markers pop-up menu options are discussed in the
following sections.
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