Horizontal and acquisition s etups Set the r esolution
Set the resolution
From the Horiz /Acq menu, select Resolution.
Overview
Use the Resolution control window to select the number of samples per division for all acquired waveforms.
To use
Click in the Record Length control box and use the multipurpose knob or keypad to change the setting.
Behavior
The Duration, Sample Rate, and Resolution controls are readouts on ly. Their settings are impacted by
other controls.
Duration specifies the time across the 10-division screen.
Sample Rate specifies the number of samples per second that will be acquired for each waveform. The
faster the sample rate, the more accurately the instrument can represent fine details in a fast signal.
Resolution is similar to the acquisition interval. It can b e thought of as the time between sample points.
In most cases, the acquisition interval is the same as the resolution.
Record Length specifies the total number of samples in the waveform acquisition. The maximum
record length depends on the amount of memory in the instrument. Because the instrument can only
store a finite number of waveform data points, there is a trade-off between the waveform details and
the record length. You can acquire either a detailed picture of a waveform for a shorter period of time
or a less detailed picture for a longer period of time.
What do you want to do next?
Learn about the Horizontal Setup control window. (see page 177)
Learn about the Acquisition Setup control window. (see page 181)
Select the acquisition mode
From the Horiz /Acq menu, highlight Acquisition Mode; then select Mode.
DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series 193
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