Agilent Technologies DSO-X 4022A, User Manual

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228 Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
12
Acquisition Control
Acquiring to Segmented Memory
When capturing multiple infrequent trigger events it is advantageous to
divide the oscilloscope's memory into segments. This lets you capture
signal activity without capturing long periods of signal inactivity.
Each segment is complete with all analog channel, digital channel (on MSO
models), and serial decode data.
When using segmented memory, use the Analyze Segments feature (see
"Measurements, Statistics, and Infinite Persistence with Segmented
Memory"
on page 229) to show infinite persistence across all acquired
segments. See also "To set or clear persistence" on page 151 for details.
To acquire to
segmented
memory
1
Set up a trigger condition. (See Chapter 10 , “Triggers,” starting on page
165 for details.)
2 Press the [Acquire] key in the Waveform section of the front panel.
3 Press the Segmented softkey.
4 In the Segmented Memory Menu, press the Segmented softkey to enable
segmented memory acquisitions.
5
Press the
# of Segs
softkey and turn the Entry knob to select the
number of segments into which you would like to divide the
oscilloscope's memory.
Memory can be divided into as few as two segments and as many as
1000 segments, depending on the oscilloscope model.
6 Press the [Run] or [Single] key.
The oscilloscope runs and fills a memory segment for each trigger event.
When the oscilloscope is busy acquiring multiple segments, the progress is
displayed on screen. The oscilloscope continues to trigger until memory is
filled, then the oscilloscope stops.
If the signal you are measuring has more than about 1 s of inactivity,
consider selecting the
Normal trigger mode to prevent AutoTriggering. See
"To select the Auto or Normal trigger mode" on page 206.
See Also
• "Navigating Segments" on page 229
• "Measurements, Statistics, and Infinite Persistence with Segmented
Memory"
on page 229
• "Segmented Memory Re- Arm Time" on page 230