5-18 Mobile WiMAX Signal Analyzer Verification, Options 66 and 67 Option Verification
5-98 PN: 10580-00255 Rev. J MT8212E and MT8213E MM
k. Press the MOD On/Off key and verify that the LED is On. Confirm 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 –15 dBm. Turn the output On.
3. Set the MT821xE to Mobile WiMax Signal Analyzer mode and preset the instrument.
4. Set the MT821xE as follows:
a. Press the Freq main menu key and set the Center Frequency to 2600.5 MHz.
b. Press the Setup main menu key and set the Bandwidth to 10 MHz.
c. In the Setup menu, verify that the CP Ratio is set 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.
5. Record the MT821xE EVM (rms) reading in the 2600.5 MHz, –15 dBm row of Table A-87, “Option 67,
Mobile WiMAX Residual EVM (10 MHz Bandwidth and 10 ms Frame Length)”.
6. Verify that the measured EVM is within specification.
7. Set the MG3700A level to –50.0 dBm.
8. Record the MT821xE EVM (rms) reading in the 2600.5 MHz, –50 dBm row of Table A-87.
9. Verify that the measured EVM is within specification.
10. On the MT821xE, press the Setup main menu key and set Demod to Auto.
11. Record the MT821xE Frequency Error reading in the 2600.5 MHz, –50 dBm row of Table A-88,
“Option 67, Mobile WiMAX Frequency Error (10 MHz Bandwidth and 10 ms Frame Length)”.
12. Verify that the measured Frequency Error is within specification.
13. Set the MG3700A frequency to 3600.5 MHz.
14. On the MT821xE, change the Center Frequency to 3600.5 MHz.
15. Press the Setup main menu key and set Demod to FCH.
16. Measure the EVM (rms) for both –15 dBm and –50 dBm and then record the measured results in
Table A-87.
17. Verify that the measured EVM is within specification.
18. Repeat Step 10 through Step 12 to measure the Frequency Error at –50 dBm, and record the results in
Table A-88.
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