Anritsu Spectrum Master MS2720T - Residual EVM and Frequency Error (10 Mhz Bandwidth and 10 Ms Frame Length)

3-12 Option 885, Mobile WiMAX Signal Analyzer Verification Chapter 3 — Options Verification
3-50 PN: 10580-00342 Rev. D MS2720T MM
Residual EVM and Frequency Error (10 MHz Bandwidth and 10 ms Frame Length)
3. Set the MG3700A as follows:
a. Press the yellow Preset button (answer yes to the question).
b. Press the Set key
c. Press the (F1) submenu key to select “Load File to Memory”.
d. Press the (F1) submenu key again to select “Select Package”.
e. Using the Down Arrow key, step through the selection list until mWiMAX is highlighted.
f. Press the Set key.
g. Press the (F6) submenu key, Return.
h. Press the Set key. The “Select Package” list box is displayed. Again select mWiMAX and press Set.
i. Another file list is displayed. Select (highlight) 10m1024g8_0_10_cap.
j. Press the Set key.
k. Press the MOD On/Off key and verify that the LED is On. Ensure that the “Playing” indicator is
displaying the moving pattern.
l. Press the Frequency key, then enter 2600.5 MHz.
m. Press the Level key, then enter 2dBm. Turn the output On then adjust the level until the power
meter reads –15.0 dBm ± 0.2 dB.
4. Set the MS2720T to Mobile WiMAX Signal Analyzer mode and Preset the instrument.
5. Set the MS2720T as follows:
a. Press the Freq main menu key and set the Center Freq to 2600.5 MHz.
b. Press the Setup main menu key and set the Bandwidth to 10 MHz.
c. Press the CP Ratio submenu key (under the
Setup main menu key) and set the CP Ratio to 1/8.
d. Press the Frame Length submenu key and set the Frame Length to 10 ms.
e. Press the Demod submenu key and set Demod to FCH.
f. Press the Measurements main menu key and press Demodulator, then press Modulation Summary.
6. Record the MS2720T EVM (rms) reading into the “EVM (rms)” column in Table A-125, “Demodulation,
Mobile WiMAX Residual EVM (10 MHz Bandwidth and 10 ms Frame Length)” on page A-58.
7. Verify that the measured EVM is within specification.
8. Adjust the MG3700A Level until the power meter reaqds –30.0 dBm ± 0.2 dB.
9. Record the MS2720T EVM (rms) reading into the “EVM (rms)” column in Table A-125.
10. Verify that the measured EVM is within specification.
11. On the MS2720T, press the Setup main menu key, and set Demod to Auto.
12. Adjust the MG3700A Level until the power meter reaqds –50.0 dBm ± 0.2 dB.
13. Record the MS2720T frequency error reading to the “Frequency Error” column in Table A-126,
“Demodulation, Mobile WiMAX Frequency Error (10 MHz Bandwidth and 10 ms Frame Length)”
on page A-58.
14. Verify that the measured Frequency Error is within specification.
15. Set MG3700A Frequency to 3600.5 MHz.
16. On the MS2720T, change the Center Frequency to 3600.5 MHz.
17. Press the Setup main menu key and set Demod to FCH.