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Performance Verification
4-30
AWG510 & AWG520 Service Manual
Clock Frequency Tests
These procedures check the AWG500–Series Waveform Generator clock
frequency accuracy.
Equipment
required
A 50ĂΩ coaxial cable, a 50ĂΩ precision terminator and a frequency
counter.
Prerequisites The AWG500-Series Waveform Generator must meet the prerequisites
listed on page 4-13.
1. Install test hookup and set test equipment controls:
a. Hook up frequency counter: Connect the AWG500–Series Waveform
Generator clock output connector through a 50 W BNC coaxial cable and
a 50 Ω precision terminator to the frequency counter input A connector
(see Figure 4–9).
AWG500 Series Waveform
Generator rear panel
Frequency Counter
50 W coaxial cable
50 W Terminator
Figure 4-9: Clock frequency initial test hookup
b. Set frequency counter controls:
INPUT A
Slope . .....................
Coupling .................... AC
FUNCTION ...................... AFREQ
Gate time . ...................... 0.2s
Level .......................... 0V
2. Set AWG500–Series Waveform Generator controls and select the waveform:
a. Initialize the AWG500–Series Waveform Generator controls:
Push UTILITY (front–panel)!
System (bottom)!Factory Reset (side)!OK (side).