Performance Verification
VX4792 User Manual
F-35
External Trigger Level Accuracy Check
This procedure checks the external trigger level accuracy of the VX4792 Arbi-
trary Waveform Generator.
Electrical Characteristic Checked: Auxiliary Inputs, Trigger, Accuracy, on
page E–6.
Equipment Required: Two 50 coaxial cables, a function generator, and an
oscilloscope.
Prerequisites: The instrument must meet the prerequisites listed on page F–3.
Procedure:
1. Install test setup and set test equipment controls (see Figure F–17):
VX4792
Oscilloscope
WAVEFORM
OUTPUT
Ch 1 Input
Function
Generator
Output
TRIGGER
INPUT
Figure F-17: External Trigger Level Accuracy Initial Test Setup
a. Connect oscilloscope: Connect the WAVEFORM OUTPUT through a
coaxial cable to the oscilloscope CH1 vertical input.
b. Connect function generator: Connect the TRIGGER INPUT through a
coaxial cable to the function generator output.
c. Set oscilloscope controls:
Vertical CH1
CH1 Coupling DC
CH1 Scale 0.2 V/div
CH1 Input Impedance 50
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