Anritsu MS2722C User manual

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Maintenance Manual
Spectrum Master™
MS2722C, MS2723C, MS2724C,
MS2725C, and MS2726C
High Performance Handheld Spectrum Analyzer
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
Part Number: 10580-00279
Revision: E
Published: January 2016

TRADEMARK ACKNOWLEDGMENTS
Windows, Windows XP, and Windows Vista all registered trademarks of Microsoft Corporation.
Acrobat Reader is a registered trademark of Adobe Corporation.
Spectrum Master is a trademark of Anritsu Company.
NOTICE
Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the
proper installation, operation and maintenance of Anritsu Company equipment and computer programs. The
drawings, specifications, and information contained herein are the property of Anritsu Company, and any
unauthorized use or disclosure of these drawings, specifications, and information is prohibited; they shall not be
reproduced, copied, or used in whole or in part as the basis for manufacture or sale of the equipment or software
programs without the prior written consent of Anritsu Company.
UPDATES
Updates, if any, can be downloaded from the Documents area of the Anritsu Web site at:
http://www.anritsu.com
For the latest service and sales contact information in your area, please visit:
http://www.anritsu.com/contact.asp

MS272xC MM PN: 10580-00279 Rev. E Safety-1
Safety Symbols
To prevent the risk of personal injury or loss related to equipment malfunction, Anritsu Company uses the
following symbols to indicate safety-related information. For your own safety, please read the information
carefully before operating the equipment.
Symbols Used in Manuals
Safety Symbols Used on Equipment and in Manuals
The following safety symbols are used inside or on the equipment near operation locations to provide
information about safety items and operation precautions. Ensure that you clearly understand the meanings of
the symbols and take the necessary precautions before operating the equipment. Some or all of the following
five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached
to products that are not shown in the diagrams in this manual.
This indicates a prohibited operation. The prohibited operation is indicated symbolically in or near
the barred circle.
This indicates a compulsory safety precaution. The required operation is indicated symbolically in or
near the circle.
This indicates a warning or caution. The contents are indicated symbolically in or near the triangle.
This indicates a note. The contents are described in the box.
These indicate that the marked part should be recycled.
Danger
This indicates a risk from a very dangerous condition or procedure that
could result in serious injury or death and possible loss related to
equipment malfunction. Follow all precautions and procedures to minimize
this risk.
Warning
This indicates a risk from a hazardous condition or procedure that could
result in light-to-severe injury or loss related to equipment malfunction.
Follow all precautions and procedures to minimize this risk.
Caution
This indicates a risk from a hazardous procedure that could result in loss
related to equipment malfunction. Follow all precautions and procedures to
minimize this risk.

Safety-2 PN: 10580-00279 Rev. E MS272xC MM
For Safety
Warning Always refer to the operation manual when working near locations at which
the alert mark, shown on the left, is attached. If the operation, etc., is
performed without heeding the advice in the operation manual, there is a
risk of personal injury. In addition, the equipment performance may be
reduced.
Moreover, this alert mark is sometimes used with other marks and
descriptions indicating other dangers.
Warning
When supplying power to this equipment, connect the accessory 3-pin
power cord to a 3-pin grounded power outlet. If a grounded 3-pin outlet is
not available, use a conversion adapter and ground the green wire, or
connect the frame ground on the rear panel of the equipment to ground. If
power is supplied without grounding the equipment, there is a risk of
receiving a severe or fatal electric shock.
Warning
This equipment can not be repaired by the operator. Do not attempt to
remove the equipment covers or to disassemble internal components.
Only qualified service technicians with a knowledge of electrical fire and
shock hazards should service this equipment. There are high-voltage parts
in this equipment presenting a risk of severe injury or fatal electric shock to
untrained personnel. In addition, there is a risk of damage to precision
components.
Caution
Electrostatic Discharge (ESD) can damage the highly sensitive circuits in
the instrument. ESD is most likely to occur as test devices are being
connected to, or disconnected from, the instrument’s front and rear panel
ports and connectors. You can protect the instrument and test devices by
wearing a static-discharge wristband. Alternatively, you can ground
yourself to discharge any static charge by touching the outer chassis of the
grounded instrument before touching the instrument’s front and rear panel
ports and connectors. Avoid touching the test port center conductors
unless you are properly grounded and have eliminated the possibility of
static discharge.
Repair of damage that is found to be caused by electrostatic discharge is
not covered under warranty.
Warning This equipment is supplied with a rechargeable battery that could
potentially leak hazardous compounds into the environment. These
hazardous compounds present a risk of injury or loss due to exposure.
Anritsu Company recommends removing the battery for long-term storage
of the instrument and storing the battery in a leak-proof, plastic container.
Follow the environmental storage requirements specified in the product
data sheet.

MS272xC MM PN: 10580-00279 Rev. E Contents-1
Table of Contents
Chapter 1—General Information
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Anritsu Customer Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-3 Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-4 Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1-5 Connector Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Connecting Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Disconnecting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Chapter 2—Spectrum Analyzer Verification
2-2 Frequency Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Single Side Band (SSB) Phase Noise Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-4 Spurious Response (Second Harmonic Distortion) Verification . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-5 Input Related Spurious (IRS) Signals Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
1000 MHz Input Related Spurious Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3273 MHz Input Related Spurious Check: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
8000 MHz Input Related Spurious Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2-6 Resolution Bandwidth Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2-7 Spectrum Analyzer Absolute Amplitude Accuracy Verification. . . . . . . . . . . . . . . . . . . . . . . . 2-13
50 MHz Amplitude Accuracy Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Amplitude Accuracy Across Frequency Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Measuring Amplitude Accuracy Across Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2-8 Residual Spurious Response Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Residual Spurious Response Test with Preamp Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Residual Spurious Response Test with Preamp On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2-9 Displayed Average Noise Level (DANL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Preamp On Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Preamp Off Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2-10 Third Order Intercept (TOI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
2400 MHz TOI Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Chapter 3—Options Verification
3-2 Option 31, GPS Frequency Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
GPS Option Bias-Tee Voltage Verification (Option 31) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-3 Option 40 and/or 41, GSM/GPRS/EDGE Signal Analyzer Verification. . . . . . . . . . . . . . . . . . . 3-5
GSM Burst Power, Frequency Error, and Phase Error Tests . . . . . . . . . . . . . . . . . . . . . . . 3-6
EDGE Burst Power, Frequency Error and Residual Error Tests . . . . . . . . . . . . . . . . . . . . . 3-8
3-4 Option 42 and/or 43, CDMA Signal Analyzer Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
cdmaOne Channel Power, Frequency Error, Rho and Tau Tests. . . . . . . . . . . . . . . . . . . 3-11
CDMA2000 Channel Power, Frequency Error, Rho and Tau Tests . . . . . . . . . . . . . . . . . 3-12

Contents-2 PN: 10580-00279 Rev. E MS272xC MM
Table of Contents (Continued)
3-5 Option 44, 45, and/or 65 WCDMA/HSDPA Signal Analyzer Verification . . . . . . . . . . . . . . . . 3-13
WCDMA Absolute Power Accuracy Verification (Option 44) . . . . . . . . . . . . . . . . . . . . . . 3-13
WCDMA Occupied Bandwidth (OBW) Verification (Option 44) . . . . . . . . . . . . . . . . . . . . 3-18
WCDMA RF Channel Power Accuracy and ACLR Verification (Option 44) . . . . . . . . . . . 3-20
HSDPA RF Channel Power Accuracy and ACLR Verification (Option 44) . . . . . . . . . . . . 3-21
Error Vector Magnitude (EVM) Verification (Option 45 or Option 65) . . . . . . . . . . . . . . . . 3-22
3-6 Option 46 and/or Option 47, Fixed WiMAX Signal Analyzer Verification . . . . . . . . . . . . . . . . 3-24
Fixed WiMAX Channel Power Accuracy Tests (Option 46) . . . . . . . . . . . . . . . . . . . . . . . 3-24
Fixed WiMAX Residual EVM and Frequency Error Tests (Option 47) . . . . . . . . . . . . . . . 3-26
3-7 Option 60 and/or Option 61, TDSCDMA Signal Analyzer Option Verification . . . . . . . . . . . . 3-28
TDSCDMA Channel Power, Frequency Error, EVM, and Tau Test Procedure . . . . . . . . 3-29
3-8 Option 62 and/or Option 63, EVDO Signal Analyzer Option Verification . . . . . . . . . . . . . . . . 3-30
8PSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . . . 3-31
QPSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . . . 3-32
16QAM Modulation Channel Power, Frequency Error, Rho, and Tau Tests. . . . . . . . . . . 3-32
Idle Slot Channel Power, Frequency Error, Rho, and Tau Tests. . . . . . . . . . . . . . . . . . . . 3-33
3-9 Option 66 and/or Option 67, Mobile WiMAX Signal Analyzer Verification . . . . . . . . . . . . . . . 3-34
Mobile WiMAX Channel Power Accuracy Tests (Option 66) . . . . . . . . . . . . . . . . . . . . . . . 3-34
Channel Power Accuracy (10 MHz Bandwidth and 10 ms Frame Length) . . . . . . . . . . . . 3-35
Channel Power Accuracy (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . . . . . . . . . 3-36
Mobile WiMAX Residual EVM and Frequency Error Tests (Option 67). . . . . . . . . . . . . . . 3-38
Residual EVM and Frequency Error (10 MHz Bandwidth and 10 ms Frame Length) . . . . 3-39
Residual EVM and Frequency Error (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . 3-40
3-10 LTE Signal Analyzer Option 541 and/or 542 and/or 543 Verification . . . . . . . . . . . . . . . . . . . 3-41
LTE Channel Power Accuracy Tests (Option 541 and 543) . . . . . . . . . . . . . . . . . . . . . . . 3-42
LTE Residual EVM and Frequency Error Tests (Option 542 and 543) . . . . . . . . . . . . . . . 3-43
3-11 TD-LTE Signal Analyzer Option 551 and/or 552 and/or 543 Verification . . . . . . . . . . . . . . . . 3-45
TD-LTE Channel Power Accuracy Tests (Option 551 and Option 543) . . . . . . . . . . . . . . 3-46
TD-LTE Residual EVM and Frequency Error Tests (Option 552 and Option 543) . . . . . . 3-48
Chapter 4—Battery Information
4-1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 Battery Pack Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Chapter 5—Assembly Replacement
5-1 Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 Opening the Spectrum Master Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-3 Spectrum Analyzer Module Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5-4 Main PCB Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5-5 LCD Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5-6 Keypad Membrane and Main Keypad PCB Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

MS272xC MM PN: 10580-00279 Rev. E Contents-3
Table of Contents (Continued)
5-7 Function Key Membrane and Switch Pad Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Chapter 6—Troubleshooting
6-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-2 Turn-on Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-3 Other Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Appendix A—Test Records
A-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A-2 Test Records for Spectrum Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-3 Test Records for Options Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-35
Option 31 GPS Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-35
Option 40, GSM/GPRS/EDGE RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-35
Option 40, GSM/GPRS/EDGE RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . . A-36
Option 40, GSM/GPRS/EDGE RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . . A-37
Option 41, GSM/GPRS/EDGE Demodulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-38
Option 41, GSM/GPRS/EDGE Demodulator (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . A-39
Option 42 CDMA RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-40
Option 43 cdmaOne and CDMA2000 1xRTT Demodulator . . . . . . . . . . . . . . . . . . . . . . . A-41
Option 44 and/or 45 and/or 65 WCDMA and HSDPA RF Measurements. . . . . . . . . . . . . A-42
Option 44 and/or 45 and/or 65 WCDMA and HSDPA RF Measurements (Continued) . . A-43
Option 44 and/or 45 and/or 65 WCDMA and HSDPA RF Measurements (Continued) . . A-44
Option 46 Fixed WiMAX RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-45
Option 47 Fixed WiMAX Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-46
Option 60 or Option 61, TDSCDMA Signal Analyzer Option Verification . . . . . . . . . . . . . A-46
Option 62, EVDO RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-47
Option 62, EVDO RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-48
Option 63 EVDO Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-48
Option 63 EVDO Demodulator (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-49
Option 66 Mobile WiMAX RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-50
Option 66 Mobile WiMAX RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . . . . . . A-51
Option 67 Mobile WiMAX Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-52
Option 541 and Option 543 LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-53
Option 542 and Option 543, LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-54
Option 551 and Option 543 TD-LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-55
Option 552 and Option 543, TD-LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-56

Contents-4 PN: 10580-00279 Rev. E MS272xC MM

MS272xC MM PN: 10580-00279 Rev. E 1-1
Chapter 1 — General Information
1-1 Introduction
This manual provides maintenance instructions for Anritsu Spectrum Master Models MS2722C, MS2723C,
MS2724C, MS2725C, and MS2726C. It provides a list of recommended test equipment, performance
verification procedures, parts replacement procedures, replaceable parts list, and test records.
Familiarity with the basic operation of the front panel keys is assumed (for example, how to change
measurement mode, how to preset the instrument, or the meaning of “submenu key”). Before making any
measurement, ensure that all equipment has warmed up for at least 30 minutes.
The manual includes:
•General information in this chapter, including:
•Lists of necessary test equipment to perform verification testing
(Table 1-1, Table 1-2, and Table 1-3)
•Replaceable parts list (Table 1-4)
•Performance verification procedures:
•Chapter 2, “Spectrum Analyzer Verification”
•Chapter 3, “Options Verification ”
•Battery pack information (Chapter 4, “Battery Information”)
•Parts replacement procedures (Chapter 5, “Assembly Replacement”)
•Troubleshooting problems (Chapter 6, “Troubleshooting”)
•Blank test records are included in Appendix A.
•Copy the blank test records from Appendix A and use them to record measured values. These test
records form a record of the performance of your instrument. Anritsu recommends that you make a
copy of the blank test records to document the measurements each time a Performance
Verification is performed. Continuing to document this process each time it is performed provides
a detailed history of instrument performance, which can allow you to observe trends.
1-2 Anritsu Customer Service Centers
For the latest service and sales information in your area, please visit the following URL:
http://www.anritsu.com/Contact.asp
Choose a country for regional contact information.
Caution Before making any measurement, verify that all equipment has warmed up for at least 30 minutes.

1-3 Recommended Test Equipment Chapter 1 — General Information
1-2 PN: 10580-00279 Rev. E MS272xC MM
1-3 Recommended Test Equipment
The following test equipment is recommended for use in testing and maintaining Anritsu Models MS2722C,
MS2723C, MS2724C, MS2725C, and MS2726C.
•Table 1-1 is a list of test equipment that is required for verifying the spectrum analyzer functions on
Models MS2722C, MS2723C, and MS2724C.
•Table 1-2 is a list of test equipment that is required for verifying the spectrum analyzer functions on
Models MS2725C, and MS2726C.
•Table 1-3 is a list of test equipment that is required for verifying the functions of installed options on any
MS272xC Model.
•Table 1-4 is a list of replaceable parts for the MS272xC Spectrum Master.
a. Note that MG3692A models require Option 15 to achieve power of +16 dBm at 3.5 GHz. MG3692B models do not require
Option 15 to achieve power of +16 dBm at 3.5 GHz.
Table 1-1. Test Equipment Required for Verifying Spectrum Analyzer Functions up to 20 GHz
Instrument Critical Specification Recommended Manufacturer/Model
Synthesized Signal Generator Frequency: 0.1 Hz to 20 GHz
Power Output: +16 dBm
Step attenuator installed
Anritsu Model MG3692A or MG3692B
with Options 2A, 4, 22, 15xa
Power Meter Power Range: –70 to +20 dBm Anritsu Model ML2438A
Power Sensor Frequency: 100 kHz to 18 GHz
Power Range: –67 to +20 dB
Anritsu Model MA2421D or SC7400
(Qty 2)
50 ohm Termination Frequency: DC to 18 GHz Anritsu Model 28N50-2
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
RF Coaxial Cable Frequency: DC to 18 GHz
N(m)-N(f), 50 ohm
Anritsu Model 15NN50-1.5B (Qty 2)
Lowpass Filter Frequency: 50 MHz Anritsu Part Number 1030-96
Frequency Reference Frequency: 10 MHz Symmetricom RubiSource T&M
Signal Generator Agilent Model 8648D with Options 1ES
and 1EA
Fixed Attenuator 10 dB Attenuation Aeroflex/Weinschel Model 44-10 (Qty 2)
Fixed Attenuator 20 dB Attenuation Aeroflex/Weinschel Model 44-20 (Qty 2)
Fixed Attenuator 6 dB Attenuation Aeroflex/Weinschel Model 44-6 (Qty 2)
Fixed Attenuator 2 dB Attenuation Aeroflex/Weinschel Model 44-2 (Qty 2)
Power Splitter Frequency: DC to 18 GHz Aeroflex/Weinschel Model 1870A
Coaxial Cable BNC(m) to BNC(m), 50 ohm Any (Qty 2)
Caution
Factory tests have shown that the equipment that is listed above will provide satisfactory results at
20 GHz (the upper limit of the MS2724C) even though the chart above specifies 18 GHz
(per manufacturers specifications). Many Type N cables have excessive loss for testing the
spectrum analyzer section of the instrument up to 20 GHz. An SMA cable or K cable should
therefore be installed on the MG synthesizer for all spectrum analyzer tests on the MS2724C.

Chapter 1 — General Information 1-3 Recommended Test Equipment
MS272xC MM PN: 10580-00279 Rev. E 1-3
b. Note that MG3692A models require Option 15 to achieve power of +16 dBm at 3.5 GHz. MG3692B models do not require
Option 15 to achieve power of +16 dBm at 3.5 GHz.
Table 1-2. Test Equipment Required for Verifying Spectrum Analyzer Functions up to 40 GHz
Instrument Critical Specification Recommended Manufacturer/Model
Synthesized Signal Generator Frequency: 0.1 Hz to 20 GHz,
Power Output: +16 dBm,
Step attenuator installed
Anritsu Model MG3692A or MG3692B
with Options 2A, 4, 22, 15xb
Synthesized Signal Generator Frequency: 0.1 Hz to 40 GHz,
Power Output: +16 dBm,
Step attenuator installed
Anritsu Model MG3692A or MG3695C
with Options 2A, 4, 22, 15xb
Power Meter Power Range: –70 to +20 dBm Anritsu Model ML2438A
Power Sensor Frequency: 100 kHz to 40 GHz
Power Range: –70 to +20 dB
Anritsu Model SC7413 (Qty 2) K type
50 ohm Termination Frequency: DC to 40 GHz Anritsu Model 28KF50-2
Adapter Frequency: DC to 40 GHz
K(m)-K(m), 50 ohm
Anritsu Model K220B
Adapter Frequency: DC to 40 GHz
K(f)-K(f), 50 ohm
Anritsu Model K222B
RF Coaxial Cable Frequency: DC to 40 GHz
K(m)-K(f), 50 ohm
Anritsu Model 3670K50-2 (Qty 2)
Lowpass Filter Frequency: 50 MHz Anritsu Part Number 1030-96
Frequency Reference Frequency: 10 MHz Symmetricom RubiSource T&M
Signal Generator Agilent Model 8648D with Options 1ES
and 1EA
Fixed Attenuator 10 dB Attenuation Aeroflex/Weinschel Model 44-10
(Qty 2)
Fixed Attenuator 10 dB Attenuation Anritsu Model 41KC-10
Fixed Attenuator 20 dB Attenuation Aeroflex/Weinschel Model 44-20
(Qty 2)
Fixed Attenuator 6 dB Attenuation Aeroflex/Weinschel Model 44-6 (Qty 2)
Fixed Attenuator 2 dB Attenuation Aeroflex/Weinschel Model 44-2 (Qty 2)
Power Splitter Frequency: DC to 18 GHz Aeroflex/Weinschel Model 1870A
Power Splitter Frequency: DC to 40 GHz Anritsu Model K241C
Coaxial Cable BNC(m) to BNC(m), 50 ohm Any (Qty 2)
Adapter K(f) to N(f), 50 ohms, Ruggedized Anritsu Model 71693-R
Caution
Factory tests have shown that the equipment that is listed above will provide satisfactory results at
43 GHz (the upper limit of the MS2726C) even though the chart above specifies 40 GHz
(per manufacturers specifications).

1-3 Recommended Test Equipment Chapter 1 — General Information
1-4 PN: 10580-00279 Rev. E MS272xC MM
Table 1-3. Test Equipment Required for Verifying Functions of Installed Options (1 of 2)
Instrument Critical Specification Recommended Manufacturer/Model
Synthesizer Frequency: 0.1 Hz to 20 GHz,
+16 dBm power
Anritsu Model MG3692A or MG3692B with
options 2A, 4, 15, and 22c
Vector Signal Generator Frequency: 100 kHz to 3 GHz Anritsu Model MG3700A with Options
MG3700A-002 and MG3700A-021d
Power Meter Power Range: –70 to + 20 dBm Anritsu Model ML2438A
Power Sensor Frequency: 10 MHz to 18 GHz
Power Range: –60 to +20 dBm
Anritsu Model MA2482D with Option 1 (Qty 2)
Frequency Counter Frequency: 20 GHz Anritsu Model MF2412B
Programmable Attenuator Frequency: DC to 2 GHz
Attenuation: 100 dB
(1 and 10 dB steps)
Anritsu Model MN63A
Fixed Attenuator Frequency Range:
DC to 18 GHz
Attenuation: 10 dB
Aeroflex/Weinschel Model 44-10 (Qty 2)
Power Splitter Frequency: DC to 18 GHz Aeroflex/Weinschel Model 1870A
RF Power Amplifier Frequency:100 to 1000 MHz
Gain: 35 dB min
Mini Circuits Model TIA-1000-1R8
(Qty 2 BNC(m) to N(f) Adapters required)
Adapter Frequency: DC to 20 GHz
N(m)-N(m), 50 ohm
Maury Microwave Model 8828B
Quantity: 2 each [One each required only 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 (Qty 2)
Adapter Frequency: 881.5 MHz
SMA(m) to N(f), 50 ohm
Midwest Microwave Model
ADT-2582-NF-SMM-02 (Qty: 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 part number 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.]
RF Coaxial Cable Frequency: DC to 18 GHz
N(m)-N(m), 50 ohm
Anritsu Model 15NN50-1.5B (Qty 3)

Chapter 1 — General Information 1-4 Replaceable Parts
MS272xC MM PN: 10580-00279 Rev. E 1-5
c. 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.
d Note that the MG3700A requires that several factory custom test pattern files be installed into its memory.
1-4 Replaceable Parts
GPS Antenna Anritsu 2000-1410
Coaxial Cable BNC(m) to BNC(m), 50 ohm Any
Adapter K(f) to N(f), 50 ohms, Ruggedized Anritsu Model 71693-R
Table 1-4. List of Replaceable Parts (1 of 2)
Part Number Description
ND72062 MS2722C Main PCB Assembly, with Option 9e
ND72063 MS2723C Main PCB Assembly, with Option 9e
ND72064 MS2724C Main PCB Assembly, with Option 9e
ND72065 MS2725C Main PCB Assembly, with Option 9e
ND72066 MS2726C Main PCB Assembly, with Option 9e
ND72070 MS2725C and MS2726C Spec Analyzer PCB Assembly
ND72069 MS2724C Spec Analyzer PCB Assembly
ND72068 MS2722C and MS2723C Spec Analyzer PCB Assembly
ND70320 MS272xC GPS Receiver PCB (Option 31)
3-790-661 Gasket material for case edge
3-15-154 LCD Display
3-61368 Clear Plastic LCD Protector
2000-1685-R Soft Carrying Case
3-68100-1 Case Top (excludes model ID Label and keypad items)
3-61365-1 Case Bottom (excluding Tilt Bail)
ND69107 Case Bottom including Tilt Bail
3-65314 Left and Right Tilt Bail (Plastic) Holders
3-65316 Tilt Bail Stand (Metal)
3-65684 Tilt Bail (Plastic) Clip
3-68108 Model MS2722C ID Label
3-68107 Model MS2723C ID Label
3-68106 Model MS2724C ID Label
3-68105 Model MS2725C ID Label
3-68104 Model MS2726C ID Label
61379-1 Battery Door
633-75 High Capacity Li-ion Battery Pack
510-87 Type N RF Input connector
3-71353 Type K(m) Rugged RF Input connector
Table 1-3. Test Equipment Required for Verifying Functions of Installed Options (2 of 2)
Instrument Critical Specification Recommended Manufacturer/Model

1-4 Replaceable Parts Chapter 1 — General Information
1-6 PN: 10580-00279 Rev. E MS272xC MM
e. When ordering the Main PCB Assembly, in order to ensure installation of correct options, all options that are installed on the
instrument must be declared on the order. The options are listed on a label on the top of the MS272xC and are also shown in the
System (Shift 8) / Status display.
ND70948 Fan
40-187-R AC to DC Power Converter
3-71027-3 Main Keypad PCB
3-61362 Main Keypad (Rubber)
3-61363-1 Main Keyboard Bezel
3-61361 Soft keys Keypad (Rubber)
3-61378-1 Soft key Bezel
3-71030-3 Soft key PCB
790-625 Speaker
3-410-101 Encoder (excluding knob)
3-61360-2 Knob (excluding encoder)
Table 1-4. List of Replaceable Parts (2 of 2)
Part Number Description

Chapter 1 — General Information 1-5 Connector Care
MS272xC MM PN: 10580-00279 Rev. E 1-7
1-5 Connector Care
Visually inspect connectors for general wear, for cleanliness, and for damage such as bent pins or connector
rings. Repair or replace damaged connectors immediately. Dirty connectors can limit the accuracy of your
measurements. Damaged connectors can damage the instrument. Connection of cables carrying an
electrostatic potential, excess power, or excess voltage can damage the connector or the instrument or both.
Connection of cables with inadequate torque settings can affect measurement accuracy. Over torquing
connectors can damage the cable, the connector, the instrument, or all of these items.
Connecting Procedure
1. Carefully align the connectors.
The male connector center pin must slip concentrically into the contact fingers of the female connector.
2. Push connectors straight together. Do not twist or screw them together.
3. To tighten, turn the connector nut, not the connector body. Major damage can occur to the center
conductor and to the outer conductor if the connector body is twisted.
4. If you use a torque wrench, then initially tighten by hand so that approximately 1/8 turn or 45 degrees of
rotation remains for the final tightening with the torque wrench.
Relieve any side pressure on the connection (such as from long or heavy cables) in order to assure
consistent torque. Use an open-end wrench to keep the connector body from turning while tightening
with the torque wrench.
Do not over torque the connector.
Disconnecting Procedure
1. If a wrench is needed, then use an open-end wrench to keep the connector body from turning while
loosening with a second wrench.
2. Complete the disconnection by hand, turning only the connector nut.
3. Pull the connectors straight apart without twisting or bending.
Connectors
The following torque specifications may apply to the connectors on your instrument. To prevent damage to
your instrument, do not use pliers or a plain wrench to tighten the Type-N connector. Do not overtighten the
connector.
Type-N
The recommended torque is 12 lbf·in to 15 lbf·in (1.36 N·m to 1.70 N·m).
Type-K
The recommended torque is 8 lbf·in (0.9 N·m or 90 N·cm).
Type SMA
The recommended torque is 8 lbf·in (0.9 N·m or 90 N·cm).

1-5 Connector Care Chapter 1 — General Information
1-8 PN: 10580-00279 Rev. E MS272xC MM

MS272xC MM PN: 10580-00279 Rev. E 2-1
Chapter 2 — Spectrum Analyzer Verification
2-1 Introduction
This chapter describes the verification process for the spectrum analyzer in the MS272xC Spectrum Master.
Verification tests that are associated with instrument options are described in Chapter 3.
The following tests are in this chapter:
•“Frequency Accuracy Verification” on page 2-2
•“Single Side Band (SSB) Phase Noise Verification” on page 2-4
•“Spurious Response (Second Harmonic Distortion) Verification” on page 2-6
•“Input Related Spurious (IRS) Signals Verification” on page 2-8
•“Resolution Bandwidth Accuracy Verification” on page 2-11
•“Spectrum Analyzer Absolute Amplitude Accuracy Verification” on page 2-13
•“Residual Spurious Response Verification” on page 2-19
•“Displayed Average Noise Level (DANL)” on page 2-21
•“Third Order Intercept (TOI)” on page 2-22