Anritsu MS8911A User manual

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Model MS8911A
ISDBT Field Tester
MAINTENANCE MANUAL
P/N: 10580-00132
REVISION: A
PRINTED: NOVEMBER 2005
COPYRIGHT 2005 ANRITSU CO
490 JARVIS DRIVE
MORGAN HILL, CA 95037-2809

ISDBT Field Tester MS8911A MM i
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3. Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Spectrum Analyzer Frequency Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Spectrum Analyzer Internal Reference Frequency Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 4
Spectrum Analyzer SSB Phase Noise Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Spectrum Analyzer Spurious Response (Second Harmonic Distortion) . . . . . . . . . . . . . . . . . 7
Spectrum Analyzer Residual Spurious Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Spectrum Analyzer Displayed Average Noise Level (DANL) . . . . . . . . . . . . . . . . . . . . . . . . 10
Input Related Spurious (IRS) Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Spectrum Analyzer Resolution Bandwidth Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Spectrum Analyzer Measurement Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Level Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Noise Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Modulation Analysis Frequency Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Frequency Lock Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1 dB Compression Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Phase Noise (2nd Step) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5. Battery Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6. Battery Pack Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7. Opening the ISDBT Field Tester Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8. Real Time Clock (RTC) Battery Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9. Main PCB Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10. Spectrum Analyzer Module Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11. LCD Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
12. LCD Backlight PCB Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
13. Keypad Membrane and PCB Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
14. Function Key Membrane and Switchpad Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
15. Accessories and Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
16. ANRITSU Customer Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Appendix 1 Test Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Test Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table of Contents

ISDBT Field Tester MS8911A MM 1
1. Introduction
This manual provides maintenance instructions for the ISDBT Field Tester Model MS8911A. It describes the product
and provides performance verification procedures, parts replacement procedures, and a replaceable parts list.
2. Description
The MS8911A is a synthesizer-based handheld spectrum analyzer and ISDBT Field Tester.

2 ISDBT Field Tester MS8911A MM
3. Recommended Test Equipment
The following test equipment is recommended for use in testing and maintaining the ISDBT Field Tester.
NOTE: Verify that the test equipment is operating properly before it is used.
Table 1. Recommended Test Equipment
Equipment Critical Specification Recommended Manufacturer/Model
Synthesizer Frequency: 2GHz to 20 GHz
with options 2A, 3, 4, 15A and 22
Anritsu Model MG3692A
Power Meter Power Range: –70 to +20 dBm Anritsu Dual Channel Model ML2438A
Power Meter Cable 1.5 Meter Anritsu Model ML2400A/20
Power Sensor Frequency: 10 MHz to 18 GHz,
–67 to +20 dB
Quantity: 2 each
Anritsu Model MA2442D
Frequency Reference Frequency: 10 MHz Absolute Time Corp., Model 300
Low Pass Filter Frequency: 50 MHz Anritsu Model 1030-96
Fixed Attenuator 10 dB Attenuation Weinschel Model 1-10
Power Splitter Frequency: DC to 18 GHz Weinschel Model 1870A
Adapter Impedance: DC to 18 GHz
N(m)-N(m), 50 Ohm
Anritsu Model 34NN50A
50 Ohm 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 6.0 GHz
N(m)-N(m), 50 Ohm
Anritsu Model 15NN50-1.5C
Coaxial Cable BNC Male to Male 60 Inch, 50 Ohm Pasternack Enterprises Model PE3067-60
Modulation Signal Generator Frequency: 100 kHz to 3 GHz
With options
MU368040A, MU368010A
MU368030A, MX368012A,
MX368031A, MX368033A,
MX368041A, MX368041A,
B55-257
Anritsu Model MG3681A
Power Sensor Frequency: 10 MHz to 18 GHz
Power Range: -60 to +20 dBm
Quantity: 2 each
Anritsu Model MA2482D
Programmable Attenuator Frequency: DC to 2 GHz
Attenuation:
100 dB (in 1 and 10 dB step)
Anritsu Model MN63A
Coupler Frequency Range: 800 to 2400 MHz
Nominal Coupling Factor: 30 dB
Anritsu part number 1091-307
Isolator Frequency Range: 800 to 1000 MHz
Isolation: 30 dB
Anritsu part number 1000-51 or Alcatel
Model 9C34-41
High Power Load DC to 18 GHz, 10W Aeroflex/Weinschel Model 1418
Attenuator Frequency Range: DC to 18 GHz
Attenuation: 10 dB
Quantity: 2 each
Aeroflex/Weinschel Model 44-10
RF Power Amplifier Frequency: 100 to 1000 MHz,
Gain: 19 dB min.
Mini Circuits Model TIA-1000-4
GPS Antenna Magnet-mount with 15 foot cable Anritsu Model 2000-1410
Digital Broadcast Signal
Generator
250 kHz to 3 GHz
With option MU894010A
Anritsu Signal Generator MG8940A with
ISDB-T

ISDBT Field Tester MS8911A MM 3
4. Performance Verification
The sections that are listed below contain tests that can be used to verify the performance of the ISDBT Field Tester
Model MS8911A.
A sample performance verification test record is provided on page 41.
Spectrum Analyzer Frequency Accuracy
The following test can be used to verify the CW frequency accuracy of the ISDBT Field Tester Spectrum Analyzer.
Equipment Required:
• Anritsu MG3692A Synthesized Signal Source with options 2A, 3, 4, 15A and 22 or equivalent
• 10 MHz Reference Standard
• Anritsu 34RKNF50 50 Ohm adapter or equivalent
• Anritsu ISDBT Field Tester External Power Supply (part number 40-168)
• Anritsu 15NN50-1.5C RF Coaxial Cable or equivalent
• BNC male to BNC male coaxial cable
Procedure:
1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source and to the ISDBT
Field Tester.
2. Connect the output of the source to the RF Input of the ISDBT Field Tester.
3. Connect the external power supply (Anritsu part number 40-168) to the ISDBT Field Tester.
4. Press and hold the On/Off key to turn on the ISDBT Field Tester.
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 42, 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 42, 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 ISDBT Field Tester MS8911A 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.
Equipment Required:
• Anritsu MG3692A Synthesized Signal Source with options 2A, 3, 4, 15A and 22 or equivalent
• 10 MHz Reference Standard
• Anritsu ISDBT Field Tester External Power Supply (part number 40-168)
• Anritsu 34RKNF50 50 Ohm adapter or equivalent
• Anritsu 15NN50-1.5C RF Coaxial Cable or equivalent
• BNC male to BNC male coaxial cable
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 ISDBT Field Tester.
3. Connect the external power supply (Anritsu part number 40-168) to the ISDBT Field Tester.
4. Press the On/Off key to turn on the ISDBT Field Tester.
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.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

ISDBT Field Tester MS8911A MM 5
17. Press and hold the Shift key and press the 4, 6, and 8(from top) soft keys together to enter into the ISDBT
Field Tester 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 ISDBT Field Tester off, and then back on to exit Service Mode.
Figure 1. MS8911A ISDBT Field Tester Service Key Sequence