Agilent Technologies 4000 X Manual de servicio descargar pdf (Pagina 60)

60 4000 X-Series Oscilloscopes Advanced Training Guide

3 Advanced Triggering, Search & Navigation, and Segmented Acquisition Labs

Lab #11: Triggering on and Searching for Runt Pulses

A “runt” pulse is defined as either a positive or negative digital pulse that

fails to meet a minimum required amplitude. In this lab you will learn

how to set up the scope to trigger on runt pulse conditions. In addition,

we will be using the scope’s Search & Navigation capability to

automatically find, mark, and then navigate to runt pulses, as well as use

the scope’s segmented memory acquisition to capture multiple and

consecutive occurrences of runt conditions.

1 Connect the channel-1 probe to the Demo 1 terminal and ground.

2 Press [Default Setup] on the scope’s front panel.

3 Press [Help]; then tap the Training Signals softkey.

4 Select the Runt Pulses signal.

5 Set channel- 1 to 500 mV/div.

6 Set channel- 1 offset/position to approximately 1.6 V to center the

waveform on- screen.

7 Push the trigger level knob to automatically set the trigger level to

approximately 50%.

8 Set the scope’s timebase to 100.0 ns/div.

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Agilent Technologies 4000 X Manual de servicio Pagina 60