Option Verification 5-7 GSM/GPRS/EDGE Signal Analyzer Verification, Options 40 and 41
MT8212E and MT8213E MM PN: 10580-00255 Rev. J 5-29
EDGE Burst Power, Frequency Error, and Residual Error Tests (Options 40 and 41)
The tests in this section verify the function of the optional GSM Signal Analyzer in Model MT821xE
Cell Master.
Equipment Required
• Anritsu MG3700A Vector Signal Generator
• Anritsu ML2438A Power Meter
• Anritsu MA2482D Power Sensor
• Anritsu 34NN50A Adapter
• Anritsu 15NN50-1.5C RF Coaxial Cable
• Aeroflex/Weinschel 1870A Power Splitter
• Anritsu PN 2000-1627-R Coaxial Cables (2)
• 10 MHz Reference Standard
Procedure
1. Confirm that the equipment settings are unchanged from the previous test. Refer to Figure 5-6
on page 5-26.
2. On the MG3700A, change the selected pattern to DL_MCS-9_1SLOT.
3. Adjust the level of the MG3700A so that the power meter reads –50 dBm ± 0.2 dB. Then wait 15 seconds
to allow the MT821xE to update its measured results.
4. For an MT821xE with Option 40 (GSM/GPRS/EDGE RF Measurements), take the displayed Burst Power
value and subtract an offset of 9dB. Then subtract this value from the power meter reading in Step 3.
Then record the calculated Burst Power error and the displayed value of Freq Error in section
At 1800 MHz, –50 dBm Level, DL_MCS-9_1SLOT Pattern in Table A-38 on page A-30.
5. For an MT821xE with Option 41 (GSM/GPRS/EDGE Demodulator), record the displayed EVM (rms) in
section At 1800 MHz, –50 dBm Level, DL_MCS-9_1SLOT Pattern in Table A-39 on page A-31.
6. Verify that the measured values in Step 4 or Step 5 (or both) are within specifications.
7. On the MG3700A, change the selected pattern to DL_MCS-9_4SLOT.
8. Adjust the level of the MG3700A so that the power meter reads –10 dBm ± 0.2 dB. Then wait 15 seconds
to allow the MT821xE to update its measured results.
9. For an MT821xE with Option 40 (GSM/GPRS/EDGE RF Measurements), take the displayed Burst Power
value and subtract an offset of 3dB. Then subtract this value from the power meter reading in Step 8.
Then record the calculated Burst Power error and the displayed value of Freq Error in section
At 1800 MHz, –10 dBm Level, DL_MCS-9_4SLOT Pattern in Table A-38.
10. For an MT821xE with Option 41 (GSM/GPRS/EDGE Demodulator), record the displayed EVM (rms) in
section At 1800 MHz, –10 dBm Level, DL_MCS-9_4SLOT Pattern in Table A-39.
11. Verify that the measured values in Step 9 or Step 10 (or both) are within specifications.
12. Change the frequency of MG3700A to 850 MHz.
13. On the power meter, press the Sensor key, the Cal Factor soft key, and then the FREQ soft key. Use the
keypad to enter 850 MHz as the input signal frequency, which sets the power meter to the proper power
sensor calibration factor. Press the System key to display the power reading.
14. Adjust the level of the MG3700A so that the power meter reads –50 dBm ± 0.2 dB.
15. On the MT821xE, set the Center Frequency to 850 MHz. Then wait 15 seconds to allow the MT821xE to
update its measured results.
16. For an MT821xE with Option 40 (GSM/GPRS/EDGE RF Measurements), take the displayed Burst Power
value and subtract an offset of 3dB. Then subtract this value from the power meter reading in Step 14.
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