Performance Verification 2 3-9 WCDMA/HSDPA Signal Analyzer (Options 44, 45, and 65) Verification
MS2721B MM PN: 10580-00177 Rev. D 3-53
8. Press the Down Arrow key to select Yes.
9. Press the Set key (Note that two Set keys are available, and they both do the same thing).
10. Press the (F1) soft key to select "Load File to Memory"
11. Press the (F1) soft key again to select "Select Package"
12. Using the Down Arrow key step through the selection list until the "W-CDMA(BS Tx test)" option is
highlighted.
13. Press the Set key.
14. Press the (F6) soft key, "Return"
15. Press the Set key.
16. Using the Down Arrow key, step through the selection list until the "TestModle_1_16DPCH" option is
highlighted.
17. Press the Set key.
18. Press the MOD On/Off key and verify that the Modulation indicator on the display is ON.
19. Press the Frequency key, then enter one of the frequencies from Table A-103, “WCDMA Occupied
Bandwidth (OBW), Option 44” on page A-34 (starting with 881.5), and then press the MHz soft key.
20. Press the Level key, then enter –2 and press the dBm key.
21. Use the knob to adjust the power level so that the power meter reads –20 dBm, then record the actual
reading in the "Power Meter Reading" column in Table A-103.
22. On the MS2721B, press the Center Freq soft key, enter one of the frequencies from Table A-103 (starting
with 881.5), and then press the Enter key.
23. Press the Measurements function hard key, then press the RF Measurement soft key and the
Channel Spectrum soft key.
24. Press the Amplitude key, then press the Adjust Range
soft key.
25. Record the OBW reading in the "OBW" column of Table A-103, and verify that it is
within 4.2 MHz ± 100 kHz.
26. Repeat Step 19 through Step 25 for all of the frequencies in Table A-103.
WCDMA RF Channel Power Accuracy and ACLR Verification (Option 44)
The tests in this section can be used to verify the WCDMA RF Channel Power Accuracy and Adjacent Channel
Leakage Ratio (ACLR) Accuracy in WCDMA/HSDPA Signal Analyzer Mode.
Procedure:
1. Turn on the MG3700A Vector Signal Generator and the ML2438A power meter.
2. Connect the power sensor to the power meter and calibrate the sensor.
3. Connect the MG3700A, splitter, attenuator, power meter, and sensor as shown in Figure 3-16.
4. Press the On/Off key to turn on the MS2721B and wait until the measurement display appears. Press the
Shift key and then press the Mode (9) key to activate the mode selection menu.
5. Use the Up/Down arrow keys to select WCDMA and press the Enter key.
6. Press the Shift key, the Preset (1) key, and then the Preset soft key.
7. On the MG3700A, press the Preset key (Yellow key on the upper left-hand side).
8. Press the Down Arrow key to select Yes.
9. Press the Set key (Note that two Set keys are available, and they both do the same thing).
10. Press the (F1) soft key to select "Load File to Memory"
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