Anritsu MT8220A User manual

UMTS Master™
Model MT8220A
High Performance Node B Analyzer
MAINTENANCE MANUAL
P/N: 10580-00127
REVISION: C
PRINTED: February 2008
COPYRIGHT 2007-2008 ANRITSU CO
490 JARVIS DRIVE
MORGAN HILL, CA 95037-2809

UMTS Master MT8220A MM i
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3. Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4. Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Spectrum Analyzer Frequency Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Spectrum Analyzer Internal Reference Frequency Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 4
Spectrum Analyzer SSB Phase Noise Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Spectrum Analyzer Spurious Response (Second Harmonic Distortion) . . . . . . . . . . . . . . . . . 6
Spectrum Analyzer Residual Spurious Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Spectrum Analyzer Displayed Average Noise Level (DANL) . . . . . . . . . . . . . . . . . . . . . . . . . 9
Input Related Spurious (IRS) Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Spectrum Analyzer Resolution Bandwidth Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Spectrum Analyzer Measurement Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
GPS Option Verification (Option 31) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
GSM/GPRS/EDGE Signal Analyzer Option Verification (Options 40 and/or 41) . . . . . . . . 19
GSM Burst Power, Frequency Error and Phase Error Tests . . . . . . . . . . . . . . . . . . . . . . . . . . 19
EDGE Burst Power, Frequency Error and Residual Error Tests . . . . . . . . . . . . . . . . . . . . . . 21
WCDMA/HSDPA RF Measurements (Option 44) Verification . . . . . . . . . . . . . . . . . . . . . . 22
Error Vector Magnitude (EVM) Verification (Options 45 or 65) . . . . . . . . . . . . . . . . . . . . . 29
5. Battery Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6. Battery Pack Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7. Opening the UMTS Master Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8. Real Time Clock (RTC) Battery Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9. Main PCB Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10. Spectrum Analyzer Module Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11. LCD Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12. LCD Backlight PCB Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
13. Keypad Membrane and PCB Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
14. Function Key Membrane and Switchpad Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
15. Accessories and Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
16. ANRITSU Customer Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Appendix A Test Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Test Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

UMTS Master MT8220A MM 1
1. Introduction
This manual provides maintenance instructions for the UMTS Master Model MT8220A Spectrum Analyzer and W-
CDMA Tester. It describes the product and provides performance verification procedures, parts replacement procedures,
and a replaceable parts list.
2. Description
The MT8220A is a synthesizer-based handheld spectrum analyzer and W-CDMA tester.
3. Recommended Test Equipment
The following test equipment is recommended for use in testing and maintaining the UMTS Master.
Table 1. Recommended Test Equipment for Spectrum Analyzer Verification
Equipment Critical Specification Recommended Manufacturer/Model
Synthesizer Frequency: 0.1 Hz to 20 GHz
Power Output to +13 dBm Anritsu Model MG3692A or B with options 2A, 4, 22, 15 *
Power Meter Power Range: –70 to +20 dBm Anritsu Dual Channel Model ML2438A
Power Sensor Frequency: 10 MHz to 18 GHz,
–67 to +20 dB Anritsu Model MA2442D Quantity: 2
Frequency Reference Frequency: 10 MHz Symmetricom Model RubiSource T&M
Fixed Attenuator 10 dB Attenuation Aeroflex/Weinschel Model 1-10 Quantity: 2
Power Splitter Frequency: DC to 18 GHz Aeroflex/Weinschel Model 1870A
50 MHz Lowpass Filter Anritsu Model 1030-96
Adapter Frequency: DC to 20 GHz
N(m)-N(m), 50 Ohm Anritsu Model 34NN50A
Adapter Frequency: DC to 20 GHz
K(m)-N(f), 50 Ohm Anritsu Model 34RKNF50
50 Ohm Termination Frequency: DC to 18 GHz Anritsu Model 28N50-2
RF Coaxial Cable Frequency: DC to 18 GHz
N(m)-N(f), 50 Ohm Anritsu Model 15NNF50-1.5B
Coaxial Cable BNC Male to Male 50 Ohm Any
* Note that MG3692A models require option 15 to achieve power of +13 dBm. MG3692B models do not require option 15 to achieve
+13 dBm power.

2 UMTS Master MT8220A MM
Table 2. Recommended Test Equipment for Options Verification
Equipment Critical Specification Recommended Manufacturer/Model
Synthesizer Frequency: 0.1 Hz to 20 GHz
Power Output to +13 dBm Anritsu Model MG3692A or B with options 2A, 4, 22, 15 *
Vector Signal Generator Frequency: 100 kHz to 3 GHz Anritsu Model MG3700A with Options
MG3700A-002, MG3700A-021 **
Power Meter Power Range: –70 to +20 dBm Anritsu Dual Channel Model ML2438A
Power Sensor Frequency: 10 MHz to 18 GHz,
–60 to +20 dB Anritsu Model MA2482D with Option 1, Quantity 2
Programmable Attenuator Frequency: DC to 2 GHz
Attenuation:
100 dB (in 1 and 10 dB step)
Anritsu Model MN63A
Fixed Attenuator Frequency Range: DC to 18 GHz
10 dB Attenuation Aeroflex/Weinschel Model 44-10. Quantity 2
Power Splitter Frequency: DC to 18 GHz Aeroflex/Weinschel Model 1870A
RF Power Amplifier Frequency: 100 to 1000 MHz,
Gain: 35 dB min. Model TIA-1000-1R8 Two BNC(m) to N(f) adapters are required
Adapter Frequency: DC to 20 GHz
N(m)-N(m), 50 Ohm Maury Microwave Model 8828B Quantity 2 (one if Anritsu Coupler and
Circulator are used)
Adapter Frequency: DC to 20 GHz
K(m)-N(f), 50 Ohm Anritsu Model 34RKNF50
Adapter Frequency: 881.5 MHz
BNC(m) to N(f), 50 Ohm Midwest Microwave Model ADT-2615-NF- BNM-02, Quantity 2
Adapter Frequency: 881.5 MHz
SMA(m) to N(f), 50 Ohm Midwest Microwave Model ADT-2582-NF- SMM-02, Quantity 4 (Required only if
Anritsu Coupler and Circulator are used.)
Adapter Frequency: 881.5 MHz
SMA(m) to SMA(m), 50 Ohm Midwest Microwave Model ADT-2594-MM- SMA-02, (Required only if Anritsu Coupler
and Circulator are used.)
50 Ohm Termination Frequency: DC to 18 GHz Anritsu Model 28N50-2
High Power Load DC to 18 GHz, 10W Aeroflex/Weinschel Model M1418
Coupler Frequency: 881.5 MHz
Coupling Factor: 30 dB Midwest Microwave Model CPW-5140-30- NNN-05 or CPW-5141-30-NNN-05
Alternative: Anritsu 1091-307 (Two
SMA(m) to N(f) adapters required.)
Circulator Frequency Range: 800 to 1000 MHz
Isolation: 20 dB min Meca Electronics, Inc. part number CN- 0.900
Alternative: Anritsu part number 1000-50
(Two SMA(m) to N(f) adapter and one
SMA(m) to SMA(m) adapter required.)
Coaxial Cable BNC Male to Male 50 Ohm Any
RF Coaxial Cable Frequency: DC to 18 GHz
N(m)-N(m), 50 Ohm Anritsu Model 15NN50-1.5B Quantity 3
GPS Antenna Magnet-mount with 15 foot cable Anritsu Model 2000-1410
* Note that MG3692A models require option 15 to achieve power of +13 dBm. MG3692B models do not require option 15 to achieve
+13 dBm power.
** Note that the MG3700A requires several factory custom test pattern files installed into its memory.

UMTS Master MT8220A MM 3
4. Performance Verification
The sections that are listed below contain tests that can be used to verify the performance of the UMTS Master Model
MT8220A.
A sample performance verification test record is provided on page 47.
Spectrum Analyzer Frequency Accuracy
The following test can be used to verify the CW frequency accuracy of the UMTS Master Spectrum Analyzer.
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source. Do not connect the
10 MHz external reference to the MT8220A.
2. Connect the output of the source to the RF Input of the UMTS Master.
3. Connect the external power supply (Anritsu part number 40-168) to the UMTS Master.
4. Press and hold the On/Off key to turn on the UMTS Master.
5. Press the Shift key, the Preset key (1), and then the Preset soft key to reset the instrument to the default start-
ing conditions.
6. Turn on the 10 MHz Reference Standard and the Anritsu MG3692A Synthesized Signal Source.
7. Set the MG3692A output to 1 GHz CW, with an RF output level of –30 dBm.
8. Press the Amplitude key, then press the Reference Level soft key.
9. Use the keypad to enter –10 and select the dBm soft key.
10. Press the Freq key and select the Center Freq soft key.
11. Use the keypad to enter 1and select the GHz soft key.
12. Press the Span key, use the keypad to enter 10, and select the kHz soft key.
13. Press the BW key and select the RBW soft key.
14. Use the keypad to enter 100 and select the Hz soft key.
15. Press the VBW soft key and use the keypad to enter 30, then select the Hz soft key.
16. Press the Marker key, and select the Peak Search soft key.
17. Verify that the marker frequency is 1 GHz, ±1 kHz and record in the test records on page 48, Spectrum Analyzer
Frequency Accuracy.
18. Repeat Steps 7 through 16 for 7 GHz.
19. Verify that the marker frequency is 7 GHz ±7 kHz and record in the test records on page 48, Spectrum Analyzer
Frequency Accuracy.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
NOTE: If the unit fails the Spectrum Analyzer Frequency Accuracy test, perform the Spectrum Analyzer Internal
Reference Frequency Adjustment procedure page 4. If the unit still fails the Frequency Accuracy test after the
Internal Reference Frequency adjustment has been completed, replace the PCB assembly.

4 UMTS Master MT8220A MM
Spectrum Analyzer Internal Reference Frequency Adjustment
Use this procedure to adjust the frequency if the unit fails the Spectrum Analyzer Frequency Accuracy verification test
on page 3.
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.
2. Connect the output of the source to the RF Input of the UMTS Master.
3. Connect the external power supply (Anritsu part number 40-168) to the UMTS Master.
4. Press the On/Off key to turn on the UMTS Master.
5. Press the Shift key, the Preset key (1), and then the Preset soft key to reset the instrument to the default start-
ing conditions.
6. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.
7. Set the MG3692A output to 7 GHz with an RF output level of –30 dBm.
8. Press the Amplitude key, then press the Reference Level soft key.
9. Use the keypad to enter –10 and select the dBm soft key.
10. Press the Atten Lvl soft key, use the keypad to enter 0 and press the dB soft key.
11. Press the Freq key and select the Center Freq soft key.
12. Use the keypad to enter 7 and select the GHz soft key.
13. Press the Span key, use the keypad to enter 10, and select the kHz soft key.
14. Press the BW key and select the RBW soft key.
15. Use the keypad to enter 100 and select the Hz soft key.
16. Press the VBW soft key and use the keypad to enter 30, then select the Hz soft key.
17. Press and hold the Shift key and press the 4, 6, and 8(from top) soft keys together to enter into the UMTS Mas-
ter Service Mode (Figure 1).
18. Press the Service Menu soft key, then the APP Service soft key.
19. Press the Calibration soft key, then the 10 MHz TXCO soft key.
20. Use the Up/Down arrow keys or the rotary knob to slowly adjust the displayed signal to the center of the dis-
play. Allow the signal to stabilize between adjustments, and repeat as necessary.
21. Turn the UMTS Master off, and then back on to exit Service Mode.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
Figure 1. MT8220A UMTS Master Service Key Sequence

UMTS Master MT8220A MM 5
Spectrum Analyzer SSB Phase Noise Verification
This test can be used to verify the single side band phase noise of the UMTS Master.
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.
2. Connect the output of the MG3692A Synthesized Signal Source to the RF In connector of the UMTS Master.
3. Connect the external power supply (Anritsu part number 40-168) to the UMTS Master.
4. Press the On/Off key to turn on the UMTS Master.
5. Press the Shift key, the Preset key (1), and then the Preset soft key to reset to the default starting conditions.
6. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.
7. Set the MG3692A output to 7.09 GHz CW, with an RF output level of +13 dBm.
8. Press the Amplitude key, then press the Reference Level soft key.
9. Use the keypad to enter 0 and select the dBm soft key.
10. Press the Atten Lvl soft key, use the keypad to enter 15 and press the dB soft key.
11. Press the Freq key and select the Center Freq soft key.
12. Use the keypad to enter 7.090050 and press the GHz soft key.
13. Press the Span key, use the keypad to enter 110, and select the kHz soft key.
14. Press the BW key and select the RBW soft key.
15. Use the keypad to enter 1 and select the kHz soft key.
16. Press the VBW soft key and use the keypad to enter 3, then select the Hz soft key.
17. Press the Shift key and then press the Trace (5) key.
18. Press the # of Average soft key, use the keypad to enter 7, then press the Enter key.
19. Wait until the Trace Count indicator on the left side of the display shows 7/7.
20. Press the Marker key and select the Peak Search soft key.
21. Press the Delta On/Off soft key to turn Delta on.
22. Use the keypad to enter 10 and press the kHz soft key.
23. Subtract 30 from the dB value shown on the marker readout to convert the value to dBc/Hz (for example, if the
marker reads -80 dB, the value becomes -110 dBc/Hz). Record the dBc/Hz value in the test records in Appen-
dix A, Spectrum Analyzer SSB Phase Noise Verification.
24. Repeat Steps 22 and 23 for 20 kHz marker delta, 30 kHz marker delta and 100 kHz marker delta.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

6 UMTS Master MT8220A MM
Spectrum Analyzer Spurious Response (Second Harmonic Distortion)
The following test can be used to verify the input related spurious response of the UMTS Master.
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.
2. Connect one end of the 50 MHz Low Pass Filter to the output of the source and the other end to the UMTS Mas-
ter RF Input with the coaxial cable.
3. Connect the external power supply (Anritsu part number 40-168) to the UMTS Master.
4. Press the On/Off key to turn on the UMTS Master.
5. Press the Shift key, the Preset key (1), and then the Preset soft key to reset the instrument to the default start-
ing conditions.
6. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.
7. Set the MG3692A output to 50.1 MHz CW, with an RF output level of –30 dBm.
8. Press the Amplitude key, then press the Reference Level soft key.
9. Use the keypad to enter –27 and press the dBm soft key.
10. Press the Atten Lvl soft key and enter 0, then press the dB soft key.
11. Press the Span key, use the keypad to enter 100, and select the kHz soft key.
12. Press the Shift key and then press the Trace (5) key.
13. Press the Detection soft key, and then the Peak soft key.
14. Press the BW key and select the RBW soft key.
15. Use the keypad to enter 1 and select the kHz soft key.
16. Press the VBW soft key and use the keypad to enter 10, then select the Hz soft key.
17. Press the Freq key and select the Center Freq soft key.
18. Use the keypad to enter 50.0 and press the MHz soft key.
19. Press the Shift key and then press the Trace (5) key.
20. Press the # of Average soft key, use the keypad to enter 5, then press the Enter key.
21. Wait until the Trace Count displays 5/5.
22. Press the Marker key and select the Peak Search soft key.
23. Record the amplitude for 50.1 MHz in the test records on page 48, Spectrum Analyzer Spurious Response (Sec-
ond Harmonic Distortion).
24. Press the Freq key and select the Center Freq soft key.
25. Use the keypad to enter 100.2 and press the MHz soft key.
26. Press the Shift key and then press the Trace (5) key.
27. Press the # of Average soft key, use the keypad to enter 5, then press the Enter key.
28. Wait until the Trace Count displays 5/5.
29. Press the Marker key and select the Peak Search soft key.
30. Record the amplitude for 100.2 MHz in the test records on page 48, Spectrum Analyzer Spurious Response
(Second Harmonic Distortion).
31. Calculate the Second Harmonic Level in dBc using the following formula:
Second Harmonic Level (dBc) = Amplitude @ 100.2 MHz - Amplitude @ 50.1 MHz
32. Record the calculated dBc value in the "2nd Harmonic Distortion" box in the test record and verify that it is -50
dBc or better.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.