User manual

Table Of Contents

Operator's Manual

34 WA1K2K-OM-E RevB

Acquisition Types

When you acquire a signal, the oscilloscope converts it into a digital form

and displays a waveform. The acquisition sampling mode defines how the

signal is digitized and the timebase setting affects the time span and level

of detail in the acquisition. You can change the Sampling modes by

pressing the ACQUIRE front panel button.

There are three basic acquisition types:

 Sampling- samples the signal in evenly-spaced intervals to

construct the waveform.

Note: You can use this type to reduce random noise. This type does

not acquire rapid variation in the signal that may occur between

samples. This can result in narrow pulses being missed. In this case, use

Peak Detect to acquire data.

 Peak Detect - captures the maximum and minimum values that

occur in a signal. It finds the highest and lowest record points over

many acquisitions.

Note: The oscilloscope can acquire and display narrow pulses, which

may otherwise have been missed in Sampling mode. Noise appears

higher in this mode.

 Average - acquires up to 256 waveforms, averages them, and

displays the resulting waveform.

Note: This type can be used to reduce random noise.

Use the following steps to choose a sampling type.

1. Press the ACQUIRE front panel button. On the Acquire menu,

press the Acquisition option button and select a sampling type.