Oscilloscope Reference Horizontal Acquisition Window considerations
Horizontal Acquisition Window considerations
The instrument lets you define the horizontal acquisition window parameters that determine which
segment of an incoming signal that becomes the waveform record, following acquisition. For additional
information
, see Waveform Record
(see page 690).
These common parameters specify a horizontal acquisition window that is applied to all channels in
parallel. See Independent vs. Shared Window
(see page 685) for additional information.
These parameters are shown in the next figure (horizontal window with delay on):
The trigger position d etermines where the trigger event will be located in the waveform record. To see
more pretrigger data move your trigger position to the right on the graticule.
The horizontal position determines the number o f pretrigger and posttrigger samples. Samples before
the trigger point are pretrigger samples and those after the trigger point are posttrigger samples. When
Delay is off, the horizontal position is the same as the trigger position.
The horizontal delay determines the time from the trigger point to the Horizontal Reference.
The horizontal scale determines the horizontal size of the window relative to any waveform, allowing
you to scale it to contain a waveform edge, a cycle, or several cycles.
What do you want to do next?
Learn more about Horizontal Setup. (see page 177)
Horizontal Acquisition Window interrelated parameters
Horizontal Scale, Record Length, Sample Interval, and Resolution are related parameters that specify the
horizontal acquisition window.
Because the horizontal acquisition window must fit in the 10 horizontal division display, for most cases,
you can set the Time Duration of the horizontal acquisition window (10 divs × the scale setting) as
described below. By also setting a Record Length in samples, you indirectly set the Resolution, Sample
Interval, and Sample Rate for the horizontal acquisition window (waveform record).
684 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series
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