Qpsk Modulation Channel Power, Frequency Error, Rho, And Tau Tests; 16Qam Modulation Channel Power, Frequency Error, Rho, And Tau Tests - Anritsu Spectrum Master MS2722C Maintenance Manual

3-8 Option 62 and/or Option 63, EVDO Signal Analyzer Option Verification

QPSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests

Test Procedure
1. Ensure that the equipment settings are unchanged from the previous test.
2. On the MG3700A, change the selected pattern to FWD_38_4KBPS_16SLOT.
3. On the power meter, press the Sensor key, the Cal Factor submenu key, and then the Freq submenu key.
Use the keypad to enter 1930 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.
4. Set the MG3700A Frequency to 1930.05 MHz.
5. Adjust the MG3700A output so that the power meter reads 0 dBm ± 0.2 dB, and record the actual value as
shown on the power meter into
Modulation" on page
6. On the MS272xC, press the Freq main menu key and enter 1930.05 MHz as Center Freq. Then wait
15 seconds to allow the MS272xC to update its measured results.
7. Record the "MS272xC Reading", the displayed Channel Power value, into
8. For MS272xC with Option 62 (EVDO RF Measurements), subtract the "MS272xC Reading" of displayed
Channel Power value from the "Power Meter Reading" in
Power Error" into
9. For MS272xC with Option 63 (EVDO Demodulator), record the displayed Freq Error, Rho Pilot and Tau
into Table A-110, "Option 63, At 1930.05 MHz, 0 dBm Level, 38.4 kps QPSK Modulation" on page A-48.
10. Verify that the measured values in

16QAM Modulation Channel Power, Frequency Error, Rho, and Tau Tests

Test Procedure
1. Ensure that the equipment settings are unchanged from the previous test. The power sensor Cal Factor
frequency should still be at 1930 MHz, and the MG3700A frequency and MS272xC Center Frequency
should still be at 1930.05 MHz.
2. On the MG3700A, change the selected pattern to FWD_2457_6KBPS_1SLOT.
3. Adjust the MG3700A output so that the power meter reads –50 dBm ± 0.2 dB, and record the actual value
as shown on the power meter into
16QAM Modulation" on page A-47.
4. Then wait 15 seconds to allow the MS272xC to update its measured results.
5. Record the "MS272xC Reading", the displayed Channel Power value, into
6. For MS272xC with Option 62 (EVDO RF Measurements), subtract the "MS272xC Reading" of displayed
Channel Power value from the "Power Meter Reading" in
Power Error" into
7. For MS272xC with Option 63 (EVDO Demodulator), record the displayed Freq Error, Rho Pilot and Tau
into Table A-111, "Option 63, At 1930.05 MHz, –50 dBm Level, 2457.6 kps 16QAM Modulation"
on page A-49.
8. Verify that the measured values in
3-32
Table A-105, "Option 62, At 1930.05 MHz, 0 dBm Level, 38.4 kps QPSK
A-47.
Table A-105.
Step 8
Table A-106, "Option 62, At 1930.05 MHz, –50 dBm Level, 2457.6 kps
Table A-106.
Step 6
PN: 10580-00279 Rev. E
Step 5. Then record the "Calculated Channel
and Step 9 are within specifications.
Step 3. Then record the "Calculated Channel
and Step 7 are within specifications.
Chapter 3 — Options
Table A-105.
Table A-106.
MS272xC MM