3-11 Option 885, Fixed WiMAX Signal Analyzer Verification Chapter 3 — Options Verification
3-44 PN: 10580-00342 Rev. D MS2720T MM
9. Record the MS2720T EVM (rms) reading into the “EVM (rms)” column in Table A-115, “Demodulation,
Fixed WiMAX Residual EVM” on page A-55.
10. Verify that the measured EVM is within specification.
11. Adjust the MG3700A Level setting to approximately –13 dBm so that the power meter
reads –30.0 dBm ± 0.2 dB.
12. Record the MS2720T EVM (rms) reading into the “EVM (rms)” column in Table A-115.
13. Verify that the measured EVM is within specification.
14. Adjust the MG3700A Level setting to approximately –33 dBm so that the power meter
reads –50.0 dBm ± 0.2 dB.
15. Record the MS2720T Frequency Error reading into Table A-116, “Demodulation, Fixed WiMAX
Frequency Error” on page A-55.
16. Verify that the measured Frequency Error is within specification.
17. Set the calibration factor frequency of the power sensor to 3600.5 MHz.
18. Set MG3700A frequency to 3600.5 MHz.
19. Change the center frequency of MS2720T to 3600.5 MHz.
20. Measure the EVM (rms) for both –15 dBm and –30 dBm, and then record the measured results into
Table A-115.
21. Verify that the measured EVM is within specification.
22. Set the calibration factor frequency of the power sensor to 5600.5 MHz.
23. Set MG3700A Frequency to 5600.5 MHz.
24. Adjust the MG3700A Level setting with the knob so that the power meter reads –15.0 dBm ± 0.2 dB.
25. Change the center frequency of the MS2720T to 5600.5 MHz.
26. Record the MS2720T EVM (rms) reading into the “EVM (rms)” column in Table A-115.
27. Verify that the measured EVM is within specification.
28. Adjust the MG3700A Level setting to approximately –13 dBm so that the power meter
reads –30.0 dBm ± 0.2 dB.
29. Record the MS2720T EVM (rms) reading into the “EVM (rms)” column in Table A-115.
30. Verify that the measured EVM is within specification.
31. Adjust the MG3700A Level setting to approximately –33 dBm so that the power meter
reads –50.0 dBm ± 0.2 dB.
32. Record the MS2720T Frequency Error reading into
Table A-116.
33. Verify that the measured Frequency Error is within Specification.
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