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4.6
Acquisition Mode
The acquisition mode controls how the waveform's points are displayed from sampled points.
The oscilloscope provides the following acquisition modes: Normal, Peak Detect, Average and
Eres.
1. Press the Acquire button on the front panel to enter the ACQUIRE menu.
2. Press the Acquisition softkey and turn the Universal Knob to select the desired acquisition
mode. Push down the knob to confirm.
Normal mode (default)
In this mode, the oscilloscope samples the signal at equal time intervals to reconstruct the
waveform. For the majority of waveforms, normal mode is probably the best choice (you will use
other modes for problematic waveforms). Normal is the default acquisition mode.
Peak Detect
In peak detect mode, the oscilloscope acquires the maximum and minimum values of the signal
within the sample interval to get the envelope of the signal. Signal aliasing is prevented, but the
displayed noise may be larger.
Two common uses for peak detect are to show narrow pules during slow sweeps and show the
envelope of a waveform, which is useful when it has noise on it. Pulses as short as 1 ns can be
seen with peak detect on.
Figure 33 - Acquisition, Normal
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