Performance Verification
2-38 WFM700 Series Waveform Monitors Service Manual
8. Calculate percent amplitude error using the formula:
Amplitude Error 100 Æ1.57 --- Phase Deviation
1.57 É
9. CHECK that the calculated amplitude error is between –10% and +10%.
10. Set Clock BW to 100 Hz.
11. Adjust the RF generator settings as follows:
LFGEN2 Frequency 400 Hz
12. Adjust the RF generator phase deviation in 0.01 radian steps until the
displayed waveform shows exactly 1 UI phase modulation. Note the phase
deviation. See Figure 2--13.
13. Calculate percent amplitude error using the formula:
Amplitude Error 100 Æ1.57 --- Phase Deviation
1.57 É
14. CHECK that the calculated amplitude error is between –10% and +10%.
15. Set the Clock BW to 1kHz.
16. Change the RF generator settings as follows:
LFGEN2 Frequency 4000 Hz
17. Adjust the RF generator phase deviation in 0.01 radian steps until the
displayed waveform shows exactly 1 UI phase modulation. Note the phase
deviation. See Figure 2--13.
18. Calculate percent amplitude error using the formula:
Amplitude Error 100 Æ1.57 --- Phase Deviation
1.57 É
19. CHECK that the calculated amplitude error is between –10% and +20%.
20. Press the WFM button to exit eye clock BW mode.
