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Horizontal/Acquisition Setup Control Window
(Acquisition Tab)
Access this control window from the Acquisition tab of the Horizontal/Acquisition control window.
Overview
Use the Acquisition tab to set the acquisition setups of all live waveforms. The Acquisition
controls are common to all channels. This means that you cannot acquire in Sample mode on
channel 1 while channel 2 acquires in Envelope mode.
Acquisition is the process of sampling the analog input signal, digitizing the signal to convert it
into digital data, and then assembling the signal information into a waveform record. The
instrument creates a digital representation of the input signal by sampling the voltage level of the
signal at regular time intervals. The sampled and digitized points are stored in memory along with
the corresponding timing information. The instrument uses the digital representation of the signal
for display, measurements, or for further processing.
Use the controls on this tab to define the sampling method, the acquisition mode, turn Fast
Acquisitions on or off, access the FastFrame Setup control window, and activate an external
reference.
Acquisition Mode
To Use
Click a button to select the acquisition
mode. If you use Average or Envelope
mode, select the number of waveforms for
that mode using the multipurpose knob. If
you use Waveform Database mode, use
the multipurpose knob to select the
number of samples.
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