Agilent Technologies 4000 X Manuel de service télécharger pdf (Page 33)

Oscilloscope Familiarization Labs 2

4000 X-Series Oscilloscopes Advanced Training Guide 33

When we attempt to capture multiple RF bursts that are separated by

4.0 ms, the scope under- samples and shows varying amplitudes of the

signal as shown in Figure 16. Again, this is because the scope

automatically reduced its sample rate in order to capture a longer

time- span with its limited amount of acquisition memory. Let’s now

zoom- in and take a closer look at this under- sampled data.

10 Press [Run/Stop] to stop repetitive acquisitions ([Run/Stop] key will turn

red).

11 Now set the scope’s timebase to 200.0 ns/div.

Figure 16 Capturing multiple RF burst waveforms at a slower timebase setting.

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Agilent Technologies 4000 X Manuel de service Page 33