3-9 Option 66 and/or Option 67, Mobile WiMAX Signal Analyzer Verification Chapter 3 — Options
3-36 PN: 10580-00279 Rev. E MS272xC MM
9. Record the “MS272xC Reading”, the displayed Channel Power (RSSI) value, into Table A-115.
10. Calculate the Channel Power Error by subtracting the “MS272xC Reading” of Channel Power (RSSI)
from the “Power Meter Reading” in Step 8. Record the “Calculated Channel Power Error” into
Table A-115.
11. Verify that the error is within specification.
12. Set the calibration factor frequency of the power sensor to 3600.5 MHz.
13. Set MG3700A Frequency to 3600.5 MHz.
14. Change the center frequency of MS272xC to 3600.5 MHz.
15. Measure the Channel Power (RSSI) for both –15 dBm and –50 dBm, and then record the measured
results and calculated errors into Table A-116, “Option 66, Mobile WiMAX Channel Power Accuracy
Power Error (3600.5 MHz and –15.0 dBm)” on page A-50 and Table A-117, “Option 66, Mobile WiMAX
Channel Power Accuracy Power Error (3600.5 MHz and –50.0 dBm)” on page A-50.
16. Verify that the errors are within specification.
Channel Power Accuracy (5 MHz Bandwidth and 5 ms Frame Length)
Procedure
1. 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) 5m512g8_2_5_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.
2. Adjust the MG3700A Level setting with the knob so that the power meter reads –15.0 dBm ± 0.2 dB, and
record the actual value as shown on the power meter into Table A-118, “Option 66, Mobile WiMAX
Channel Power Accuracy Power Error (2600.5 MHz and –15.0 dBm)” on page A-51.
3. Set the MS272xC to Mobile WiMAX Signal Analyzer mode and preset the instrument.
4. Set the MS272xC 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 5MHz.
c. Press the Frame Length submenu key and set the Frame Length to 5ms.
d. Press the Measurements main menu key, press RF, then press Power vs. Time.
5. Record the “MS272xC Reading”, the displayed Channel Power (RSSI) value, into Table A-118.
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