Performance Verification
WFM700 Series Waveform Monitors Service Manual 2-43
13. Calculate the percentage of frequency error using the formula:
Frequency Error LF2 frequency 100
14. CHECK that the calculated frequency error is between –10% and +10%.
15. Set the Clock BW to 10 Hz.
16. Adjust RF generator settings as follows:
LFGEN2 Frequency 10 Hz
17. Adjust the RF generator LF2 frequency in 0.1 Hz steps until the displayed
waveform shows exactly 1 UI phase modulation. See Figure 2--13 on
page 2--37. Note the LFGEN2 frequency setting.
18. Calculate the percentage of frequency error using the formula:
Frequency Error 10 ÆLF2 frequency 10É
19. CHECK that the calculated frequency error is between –10% and +10%.
20. Set Clock BW to 1kHz.
21. Adjust the RF generator settings as follows:
LFGEN2 Frequency 1 kHz
22. Adjust the RF generator LF2 frequency in 10 Hz steps until the displayed
waveform shows exactly 1 UI phase modulation. See Figure 2--13 on
page 2--37. Note the LFGEN2 frequency setting.
23. Calculate percent frequency error using the formula:
Frequency Error 0.1 ÆLF2 frequency 1000É
24. CHECK that the calculated frequency error is between –10% and +10%.
25. Press the WFM button to exit Eye mode.
