3-5 Option 881 WCDMA/HSDPA Signal Analyzer Verification Chapter 3 — Options Verification
3-22 PN: 10580-00342 Rev. D MS2720T MM
5. Press the (F1) submenu key again to select “Select Package”.
6. Using the Down Arrow key, step through the selection list until the WCDMA(BS Tx test) option is
highlighted.
7. Press the Set key.
8. Press the (F6) submenu key, Return.
9. Press the Set key.
10. Using the Down Arrow key, step through the selection list until the TestModel_5_8HSPDSCH option is
highlighted.
11. Press the Set key.
12. Press the MOD On/Off key and verify that the Modulation indicator on the display is On.
13. Press the Frequency key, then enter 1962.5, and press the MHz key.
14. Press the Level key, then enter –2, and press the dBm key.
15. Use the knob to adjust the power meter to read –20 dBm.
16. On the MS2720T, press the Center Freq submenu key, enter 1962.5, and then press the MHz
submenu key.
17. Press the Measurements main menu key, then press the Demodulator submenu key, and press the
Modulation Summary submenu key.
18. Press the Setup main menu key, then press the Auto Scrambling submenu key to turn it On.
19. Press the Max Spreading Factor submenu key to set it to 512.
20. Press the Amplitude main menu key, then press the Adjust Range
submenu key.
21. Record the EVM reading into Table A-89, “Demodulation, HSDPA Error Vector Magnitude (Test
Model 5)” on page A-43 and verify that it is within 2.5%.
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