Hsdpa Rf Channel Power Accuracy And Aclr Verification (Option 44) - Anritsu Spectrum Master MS2723B Maintenance Manual

Performance Verification
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 "TestModel_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 881.5, and press the MHz key.
20. Press the Level key, then enter –2, and press the dBm key.
21. Use the knob to adjust the power meter to read –20 dBm, and record the Power Meter reading in the
"Power Meter Reading" column of
22. On the MS2723B or MS2724B, press the Center Frequency soft key, enter 881.5, and then press the Enter
key.
23. Press the Measurements soft key, then the RF Measurement soft key, and press ACLR.
24. Press the Amplitude key, then press the Adjust Range soft key.
25. Record the measured CH 1 power into the "Measured RF Channel Power" column of
26. Calculate the RF Channel Power Error using the following formula:
RF Channel Power Error (dB) =
Measured RF Channel Power – 0.246 – Power Meter reading
27. Record calculated value to the "RF Channel Power Error" column of
within specifications (± 1.25 dB).
28. Record all four measured Adjacent Channel Leakage Ratios in dB at –10 MHz Offset, –5 MHz Offset,
5 MHz Offset, and 10 MHz Offset into the "Measured ACLR" column of
Accuracy" on page
29. Calculate the ACLR Error at –10 MHz and +10 MHz Offset using the following formula:
ACLR Error at –10 or 10 MHz Offset =
(–50/10)
10 LOG (10
10
30. Record the calculated results into the corresponding cells in the "Calculated ACLR Error" column in
Table A-77 and verify that it is within specification.
31. Calculate the ACLR Error at –5 MHz Offset and +5 MHz Offset by using the following formula:
ACLR Error at –5 or 5 MHz Offset =
(–45/10)
10 LOG (10
10
32. Record the calculated results into the corresponding cells in
specification.
33. Repeat Step 19 through Step

HSDPA RF Channel Power Accuracy and ACLR Verification (Option 44)

The tests in this section can be used to verify the RF Channel Power Accuracy and Adjacent Channel Leakage
Ratio (ACLR) Accuracy for HSDPA signals in WCDMA/HSDPA Signal Analyzer Mode.
Procedure:
1. Turn on the MG3700A Vector Signal Generator and the ML2438A power meter.
Models MS2723B and MS2724B MM
Table A-76, "WCDMA RF Channel Power Accuracy" on page
A-29.
(Measured_ACLR/10)
+ 10
(Measured_ACLR/10)
+ 10
32 for the other frequencies.
PN: 10580-00165 Rev. D
2-7 WCDMA/HSDPA Signal Analyzer Option Verification
Table
) – (–50) dB
) – (–45) dB
Table A-77
Table A-76.
A-76, and verify that it is
Table A-77, "WCDMA ACLR
and verify that they are within
A-28.
2-53