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Appendix C: Performance Verification
CĆ28
AWG2021 User Manual
b. Set frequency counter controls:
CHANNEL A
Termination 50 W. . . . . . . . . . . . . . . . . .
Slope Negative. . . . . . . . . . . . . . . . . . . . . . .
Attenuation X5. . . . . . . . . . . . . . . . . . .
Coupling AC. . . . . . . . . . . . . . . . . . . . .
FREQ A
2. Set AWG2021 controls and select the waveform:
a. Initialize AWG2021 controls: Push UTILITY!Misc!Config...!Re-
set to Factory!O.K.
b. Select the waveform file:
H Push SETUP!Waveform Sequence, if necessary, to select a
waveform file for CH1. Waveform Sequence toggles between the
CH1 files (upper list) and the CH2 files (lower list).
H Turn the general purpose knob to select the CLK_FREQ.WFM file.
H Push ENTER.
3. Check clock frequency accuracy:
a. Check clock frequency accuracy at current clock frequency setting:
Check that the frequency counter reading falls between 249.9875 MHz
and 250.0125 MHz.
b. Check clock frequency accuracy for different clock frequency settings:
H Select Clock from the bottom of the SETUP menu.
H Turn the general purpose knob (or press the numeric and units keys,
and push ENTER) to select the first clock frequency listed in Table
C-3.
H Check that the frequency counter reading is within the frequency
range listed in the table for the clock frequency setting.
H Repeat this step for each clock frequency and frequency range listed
in Table C-3.