Appendix C: Performance Verification

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:

￿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).

￿Turn the general purpose knob to select the CLK_FREQ.WFM file.

￿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:

￿Select Clock from the bottom of the SETUP menu.

￿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.

￿Check that the frequency counter reading is within the frequency range listed in the table for the clock frequency setting.

￿Repeat this step for each clock frequency and frequency range listed in Table C-3.

C￿28

AWG2021 User Manual