Anritsu Spectrum Master MS2723B User manual

Maintenance Manual
Spectrum Master™
Models MS2723B and MS2724B
Handheld Spectrum Analyzer
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
Part Number: 10580-00165
Revision: D
Published: March 2015
Copyright 2007, 2015 Anritsu Company

Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 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 very dangerous procedure that could result in serious
injury or death, and possible loss related to equipment malfunction, if not
performed properly.
Warning
This indicates a hazardous procedure that could result in light-to-severe
injury or loss related to equipment malfunction, if proper precautions are
not taken.
Caution
This indicates a hazardous procedure that could result in loss related to
equipment malfunction if proper precautions are not taken.

Safety-2 PN: 10580-00165 Rev. D Models MS2723B and MS2724B 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.

Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D Contents-1
Table of Contents
Chapter 1—General Information
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Contacting Anritsu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-3 Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-4 Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Chapter 2—Performance Verification
2-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Spectrum Analyzer Function Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Spectrum Analyzer Frequency Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Spectrum Analyzer Internal Reference Frequency Adjustment . . . . . . . . . . . . . . . . . . . . . 2-4
Spectrum Analyzer SSB Phase Noise Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Spectrum Analyzer Resolution Bandwidth Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Spectrum Analyzer Second Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Spectrum Analyzer Third Order Intercept Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2400 MHz TOI Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Spectrum Analyzer Displayed Average Noise Level (DANL) . . . . . . . . . . . . . . . . . . . . . 2-14
Spectrum Analyzer Residual Spurious Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Residual Spurious Test with Preamp On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Residual Spurious Test with Preamp Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Input Related Spurious (IRS) Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
1000 MHz Input Related Spurious check: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
3275 MHz Input Related Spurious Check: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
8000 MHz Input Related Spurious Check: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
15000 MHz Input Related Spurious Check (for MS2724B only): . . . . . . . . . . . . . . . . . . . 2-19
Spectrum Analyzer Absolute Amplitude Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
50 MHz Amplitude Accuracy Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Amplitude Accuracy Across Frequency Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
9 kHz to 100 kHz Amplitude Accuracy Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Spectrum Analyzer RF Input VSWR Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
2-3 Optional Functions Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
2-4 GPS Option Verification (Option 31) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
2-5 GSM/GPRS/EDGE Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
GSM Burst Power, Frequency Error and Phase Error Tests. . . . . . . . . . . . . . . . . . . . . . . 2-38
EDGE Burst Power, Frequency Error and Residual Error Tests . . . . . . . . . . . . . . . . . . . . 2-39
2-6 CDMA Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
cdmaOne Channel Power, Frequency Error, Rho and Tau Tests. . . . . . . . . . . . . . . . . . . 2-42
CDMA2000 Channel Power, Frequency Error, Rho and Tau Tests . . . . . . . . . . . . . . . . . 2-44

Contents-2 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
Table of Contents (Continued)
2-7 WCDMA/HSDPA Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
WCDMA Absolute Power Accuracy Verification (Option 44) . . . . . . . . . . . . . . . . . . . . . 2-45
WCDMA Occupied Bandwidth (OBW) Verification (Option 44) . . . . . . . . . . . . . . . . . . . 2-50
WCDMA RF Channel Power Accuracy and ACLR Verification (Option 44) . . . . . . . . . . 2-52
HSDPA RF Channel Power Accuracy and ACLR Verification (Option 44) . . . . . . . . . . . 2-53
Error Vector Magnitude (EVM) Verification (Option 45 or Option 65) . . . . . . . . . . . . . . 2-55
For MS2723B or MS2724B with Option 65: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
2-8 Fixed WiMAX Signal Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Fixed WiMAX Channel Power Accuracy Tests (Option 46). . . . . . . . . . . . . . . . . . . . . . . . 2-57
Fixed WiMAX Residual EVM and Frequency Error Tests (Option 47) . . . . . . . . . . . . . . 2-60
2-9 TD-SCDMA Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62
2-10 EV-DO Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65
8-PSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests. . . . . . . . . . . . 2-67
QPSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . . . 2-67
16-QAM Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . 2-68
Idle Slot Channel Power, Frequency Error, Rho, and Tau Tests. . . . . . . . . . . . . . . . . . . . 2-68
2-11 Mobile WiMAX Signal Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70
Mobile WiMAX Channel Power Accuracy Tests (Option 66) . . . . . . . . . . . . . . . . . . . . . . 2-71
Channel Power Accuracy (10 MHz Bandwidth and 10 ms Frame Length) . . . . . . . . . . . . 2-72
Channel Power Accuracy (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . . . . . . . . . 2-73
2-12 Mobile WiMAX Residual EVM and Frequency Error Tests (Option 67) . . . . . . . . . . . . . . . . 2-75
Residual EVM and Frequency Error (10 MHz Bandwidth and 10 ms Frame Length) . . . . 2-76
Residual EVM and Frequency Error (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . 2-77
2-13 LTE Signal Analyzer Option 541 or Option 542 (or both) Verification . . . . . . . . . . . . . . . . . . 2-78
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-78
2-14 LTE Channel Power Accuracy Tests (Option 541) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-79
2-15 LTE Residual EVM and Frequency Error Tests (Option 542) . . . . . . . . . . . . . . . . . . . . . . 2-83
Chapter 3—Removal and Replacement
3-1 Remove and Replace Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Battery Pack Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Battery Pack Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-3 Opening the MS272xB Spectrum Master Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-4 Removal of the Spectrum Analyzer PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-5 Removal of the Main PCB/LCD Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-6 Main PCB Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-7 Removal of the LCD and Backlight Driver PCB from the Main PCB . . . . . . . . . . . . . . . . . . . 3-6
3-8 Main PCB Real Time Clock (RTC) Battery Removal and Replacement . . . . . . . . . . . . . . . . 3-6
3-9 Main (Numeric) Keypad Membrane and PCB Replacement . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-10 Replacing the Function Key Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-11 Function Key Membrane and Switchpad Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D Contents-3
Table of Contents (Continued)
Appendix A—Test Records
Input Related Spurs for –30 dBm Input at 1000 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Input Related Spurs for –30 dBm Input at 3275 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Input Related Spurs for –30 dBm Input at 8000 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Input Related Spurs for –30 dBm Input at 15000 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
50 MHz Amplitude Accuracy Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Amplitude Accuracy Across Frequency Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . . A-9
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-10
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-11
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-12
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-13
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-14
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-15
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-16
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-17
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-18
Amplitude Accuracy Across Frequency Verification (continued) . . . . . . . . . . . . . . . . . . . . A-19
9 kHz to 100 kHz Amplitude Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20
Spectrum Analyzer RF Input VSWR Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21
(Option 44, Option 45, Option 65, or a combination) . . . . . . . . . . . . . . . . . . . . . . . . . . A-28
(For Spectrum Master models with Option 60 or Option 61) . . . . . . . . . . . . . . . . . . . . . . A-32
Channel Power Accuracy (10 MHz Bandwidth and 10 ms Frame Length) . . . . . . . . . . A-36
Channel Power Accuracy (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . . . . . . . A-37
Residual EVM and Frequency Error (10 MHz Bandwidth and 10 ms Frame Length) . . . A-38
Residual EVM and Frequency Error (5 MHz Bandwidth and 5 ms Frame Length) . . . . . A-38
Appendix B—Troubleshooting
B-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
B-2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
B-3 Turn-on Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Instrument cannot boot-up, no activity occurs when On/Off key is pressed: . . . . . . . . . . B-1
Instrument begins the boot process, but does not complete boot-up: . . . . . . . . . . . . . . . . B-1
Instrument makes normal boot-up sounds, but the display has a problem: . . . . . . . . . . . B-1
Boot-up Self Test fails: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B-4 Battery Pack Charging Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B-5 Lock Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B-6 Spectrum Analyzer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Index

Contents-4 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
Table of Contents (Continued)

Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 1-1
Chapter 1 — General Information
1-1 Introduction
This manual provides maintenance instructions for Anritsu Spectrum Master Models MS2723B and MS2724B.
It provides a list of recommended test equipment, performance verification procedures, parts replacement
procedures, and a replaceable parts list (Table 1-3 on page 1-5). Appendix A contains blank test records, which
should be copied before use. 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 “soft key” or
“submenu key”). Before making any measurement, ensure that all equipment has warmed up for at least
30 minutes.
1-2 Contacting Anritsu
To contact Anritsu, please visit:
http://www.anritsu.com/contact.asp
From here, you can select the latest sales, select service and support contact information in your country or
region, provide online feedback, complete a "Talk to Anritsu" form to have your questions answered, or obtain
other services offered by Anritsu.
Updated product information can be found on the Anritsu web site:
http://www.anritsu.com/
Search for the product model number. The latest documentation is on the product page under the Library tab.
URL for MS2723B and MS2724B:
http://www.anritsu.com/en-us/products-solutions/products/MS2723B.aspx
and
http://www.anritsu.com/en-us/products-solutions/products/MS2724B.aspx

1-3 Recommended Test Equipment General Information
1-2 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
1-3 Recommended Test Equipment
The following test equipment is recommended for use in testing and maintaining Anritsu Spectrum Master
Models MS2723B and MS2724B. Table 1-1 is a list of test equipment that is required for verifying the
spectrum analyzer functions. Table 1-2 is a list of test equipment that is required for verifying the functions of
installed options.
Table 1-1. Test Equipment Required for Verifying Spectrum Analyzer Functions
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
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.
Power Meter Power Range: –70 to +20 dBm Anritsu Model ML2438A
Power Sensor Frequency: 100 kHz to 18 GHz
Power Range: –30 to +20 dB
Anritsu Model MA2421D or SC7816
(Quantity 2)
Power Sensor Frequency: 10 MHz to 18 GHz
Power Range: –67 to +20 dB
Anritsu Model MA2442D
(Quantity 2)
Vector Network Analyzer 40 MHz to 20 GHz Anritsu Model 37x47A,B,C or D
Type N Calibration Kit for VNA 40 MHz to 18 GHz Anritsu Model 3653
Test Port Converter for VNA 40 MHz to 18 GHz Anritsu Model 34UN50
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
(Quantity 2)
Lowpass Filter Frequency: 50 MHz Anritsu Part Number 1030-96
Low Frequency Cal Fixture Frequency: 9 kHz to 100 kHz Anritsu Part Number T3449
Frequency Reference Frequency: 10 MHz Symmetricom RubiSource T&M
Signal Generator Agilent Model 8648D with Options
1ES and 1EA
Multimeter Capable of measuring True RMS AC
voltage in millivolts range
Agilent Model 34401A
Fixed Attenuator 10 dB Attenuation Aeroflex/Weinschel Model 44-10
(Quantity 2)
Fixed Attenuator 20 dB Attenuation Aeroflex/Weinschel Model 44-20
(Quantity 2)
Fixed Attenuator 6 dB Attenuation Aeroflex/Weinschel Model 44-6
(Quantity 2)
Fixed Attenuator 2 dB Attenuation Aeroflex/Weinschel Model 44-2
(Quantity 2)
Power Splitter Frequency: DC to 18 GHz Aeroflex/Weinschel Model 1870A
Coaxial Cable BNC(m) to BNC(m), 50 Ohm Any (Quantity 2)
Adapter Dual Banana Plug to BNC(f) Any

General Information 1-3 Recommended Test Equipment
Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 1-3
Caution
Factory tests have shown that the equipment that is listed above will provide satisfactory results at
20 GHz (the upper limit of the MS2724B) 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 MS2724B.
Table 1-2. Test Equipment Required for Verifying Functions of Installed Options
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 22 a
Vector Signal Generator Frequency: 100 kHz to 3 GHz Anritsu Model MG3700A with Options
MG3700A-002 and MG3700A-021 bc
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
(Quantity 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
(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
Mini Circuits Model TIA-1000-1R8
(Quantity 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 (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

1-3 Recommended Test Equipment General Information
1-4 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
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 (Quantity 3)
GPS Antenna Anritsu 2000-1410
Coaxial Cable BNC(m) to BNC(m), 50 Ohm Any
a.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.
b.Note that the MG3700A requires that several factory custom test pattern files be installed into its memory.
c.Waveform licenses for TD-SCDMA (MX370001A) and LTE (MX370108A) are required and must be purchased.
Table 1-2. Test Equipment Required for Verifying Functions of Installed Options (Continued)
Instrument Critical Specification Recommended Manufacturer/Model

General Information 1-4 Replaceable Parts
Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 1-5
1-4 Replaceable Parts
Table 1-3. List of Replaceable Parts
Part Number Description
ND67986 MS2723B Main/Spec Analyzer PCB Assembly, with Option 9 & 31 with
S/N < 0815110a
a.When ordering the Main/Spectrum Analyzer 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 MS272xB and
are shown in the System / Status display.
ND68847 MS2723B Main/Spec Analyzer PCB Assembly, with Option 9 & 31 with
S/N > 0815109 and < 1003000a
ND71309 MS2723B Main/Spec Analyzer PCB Assembly, with Option 9 & 31 with
S/N > 1002999a
ND67987 MS2724B Main/Spec Analyzer PCB Assembly, with Option 9 & 31 with
S/N < 0815110a
ND69102 MS2724B Main/Spec Analyzer PCB Assembly, with Option 9 & 31 with
S/N > 0815109 and < 1003000a
ND71310 MS2724B Main/Spec Analyzer PCB Assembly, with Option 9 & 31 with
S/N > 1002999a
ND66821 MS272xB Demodulation PCB (Option 9)
3-15-118 LCD Display for Units with S/N < 1003000
3-15-154 LCD Display for Units with S/N > 1002999
61368 Clear Plastic LCD Protector
3-66549-3 LCD Backlight Inverter PCB for Units with 3-15-118 LCD
65729 Soft Carrying Case
ND69114 Case Top (excludes model ID Label and keypad items)
ND69107 Case Bottom (includes tilt bail)
66148 Model MS2723B ID Label
66149 Model MS2724B ID Label
61379-1 Battery Door
633-44 Li-ion Battery Pack (Standard 6.3 Ah)
633-75 Li-ion Battery Pack (Optional High Capacity 7.5 Ah)
510-87 RF Adapter SMA(f) plug to N(f) jack
3-513-64 N Connector
ND64383 Fan Assembly
3-633-26 3V RTC Battery
40-168-R AC to DC Power Converter
3-2000-1567 Internal Compact Flash Card (512 MB)
3-71027-3 Main Keypad PCB
61362 Main Keypad
61363-1 Main Keyboard Bezel
61361 Mode keys Keypad
61378-1 Mode key Bezel
3-71030-3 Mode keypad PCB
790-625 Speaker
3-410-101 Encoder (excluding knob)
61360-2 Knob (excluding encoder)

1-4 Replaceable Parts General Information
1-6 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM

Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 2-1
Chapter 2 — Performance Verification
2-1 Introduction
This chapter contains tests that are used to verify the performance of Spectrum Master Models MS2723B and
MS2724B. Section 2-2 “Spectrum Analyzer Function Verification” begins the instructions to verify Spectrum
Analyzer functions, and Section 2-3 “Optional Functions Verification” on page 2-33 begins the instructions to
verify Options. Blank performance verification test records are provided in Appendix A. Make a copy of the
blank test records and use them to record measured values.
Caution Verify that all equipment has warmed up for at least 30 minutes before making any measurements.

2-2 Spectrum Analyzer Function Verification Performance Verification
2-2 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
2-2 Spectrum Analyzer Function Verification
Spectrum Analyzer Frequency Accuracy
This test verifies the CW frequency accuracy of the Spectrum Analyzer in Spectrum Master Models MS2723B
and MS2724B.
Required Equipment:
•Anritsu MG3692x Synthesized Signal Generator
•Frequency Reference Symmetricom Rubisource T&M
•Adapter, Anritsu Model 34NN50A
•Spectrum Master: MS2723B or MS2724B
Procedure:
1. Connect the external 10 MHz Reference to the Anritsu MG3692x Synthesized Signal Generator, as
shown in Figure 2-1.
2. Connect the output of the synthesized Signal Generator to the Spectrum Analyzer RF In of the MS2723B
or MS2724B.
Figure 2-1. Spectrum Analyzer Frequency Accuracy – Test Setup
Note Do Not Connect the external 10 MHz Reference to the Spectrum Master Models MS2723B or
MS2724B.
MG3692X
10 MHz Reference
(to back panel)
MS2724B

Performance Verification 2-2 Spectrum Analyzer Function Verification
Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 2-3
3. On the MS2723B or MS2724B, change the Mode to Spectrum Analyzer. Preset the instrument.
4. Set the MG3692x output to 1 GHz CW, with an RF output level of –30 dBm.
5. On the MS2723B or MS2724B, press the Amplitude soft key, and set the Reference Level to –10 dBm.
6. Press the Freq soft key and set the Center Freq to 1.0 GHz.
7. Press the Span soft key, set the span to 10 kHz.
8. Press the BW soft key and set RBW to 100 Hz.
9. Press the VBW soft key and set to 30 Hz.
10. Press the Marker key, and press the Peak Search soft key.
11. Record the marker frequency into the “Measured Value” column of Table A-1, “Spectrum Analyzer
Frequency Accuracy” on page A-2. Verify that it is within specification.
12. For MS2723B, set the MG3692x output to 12.0 GHz CW, and set the center frequency of the MS2723B
to 12.0 GHz. For MS2724B, set the MG3692x output to 19.0 GHz CW, and set the center frequency of the
MS2724B to 19.0 GHz.
13. On the MS2723B or MS2724B, press the Marker key, and press the Peak Search soft key.
14. Record the marker frequency in Table A-1. Verify that it is within specification.
Note
If the instrument fails the Spectrum Analyzer Frequency Accuracy test, then perform the following
Spectrum Analyzer Internal Reference Frequency Adjustment procedure. If the instrument still fails
the Frequency Accuracy test after the Internal Reference Frequency adjustment has been
completed, then replace the Main/SPA PCB assembly (Section 3-5).

2-2 Spectrum Analyzer Function Verification Performance Verification
2-4 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
Spectrum Analyzer Internal Reference Frequency Adjustment
Use this procedure to adjust the internal reference frequency only if the instrument failed the preceding
Spectrum Analyzer Frequency Accuracy verification test. If the instrument still fails the Frequency Accuracy
test after this Internal Reference Frequency adjustment has been completed, then replace the Main/SPA PCB
assembly (refer to “Removal of the Spectrum Analyzer PCB” on page 3-5).
Procedure:
1. Connect the external 10 MHz Reference to the Anritsu MG3692x Synthesized Signal Generator, as
shown in Figure 2-1.
2. Connect the MG3692x output to the Spectrum Analyzer RF In of the MS2723B or MS2724B.
3. Set the MS2723B or MS2724B to Spectrum Analyzer mode and then preset the instrument.
4. Set the MG3692x output to 7 GHz with an RF output level of –30 dBm.
5. On the MS2723B or MS2724B, press the Amplitude soft key and set the Reference Level to –10 dBm.
6. Set the Atten Lvl to 0dB.
7. Press the Freq soft key and set the Center Freq to 7.0 GHz.
8. Press the Span soft key, enter 10 kHz.
9. Press the BW soft key and set the RBW to 100 Hz.
10. Press the VBW soft key and set to 30 Hz.
11. Press and hold the Shift key and press the 4th, 6th, and 8th (below Esc) soft keys together
(simultaneously) to enter into Service Mode on the MS2723B or MS2724B (Figure 2-2).
12. Press the Service Menu soft key, then the APP Service soft key.
13. Press the Calibration soft key, then the 10 MHz Ref soft key.
14. Use the Up/Down arrow keys or the rotary knob to slowly adjust the displayed signal to the center of the
display. Allow the signal to stabilize between adjustments, and repeat as necessary.
15. Turn the MS2723B or MS2724B Off, and then back On to exit Service Mode.
Note Do not connect the external 10 MHz Reference to the MS2723B or to the MS2724B.
Figure 2-2. MS272xB Service Mode
Soft Keys
4, 6, and 8
Shift Key

Performance Verification 2-2 Spectrum Analyzer Function Verification
Models MS2723B and MS2724B MM PN: 10580-00165 Rev. D 2-5
Spectrum Analyzer SSB Phase Noise Verification
This test verifies the single sideband phase noise of the Spectrum Analyzer in Spectrum Master Models
MS2723B and MS2724B.
Procedure:
1. Connect the external 10 MHz Reference to the Anritsu MG3692x Synthesized Signal Generator, as
shown in Figure 2-1.
2. Connect the output of the synthesized signal generator to the Spectrum Analyzer RF In connector of the
MS2723B or MS2724B.
3. Set the MG3692A output to 2.00 GHz CW, with an RF output level of +4 dBm.
4. Verify that the MS272xB is in the Spectrum Analyzer mode. Preset the instrument.
5. Press the Amplitude soft key, then set the Reference Level to 0dBm.
6. Press the Atten Lvl soft key and enter 15 dB.
7. Press the Freq soft key and set the Center Frequency to 2000.05 MHz.
8. Press the Span soft key and set the span to 110 kHz.
9. Press the BW soft key and set the RBW to 1kHz.
10. Press the VBW soft key and set the VBW to 3Hz.
11. Press the Shift key and then press the Trace (5) key.
12. Press Trace A Operations, and set the # of Averages to 7.
13. Wait until the Trace Count (left side of display) displays 7/7.
14. If the Center Frequency was changed and delta marker is On, then press the Delta On/Off soft key to turn
Delta Off.
15. Press the Marker key and press the Peak Search soft key.
16. Press the Delta On/Off soft key to turn Delta On.
17. Use the keypad to enter 10, and press the kHz soft key.
18. Subtract 30 from the dB value that is shown on the marker readout in order to convert the value to
dBc/Hz (for example, if the marker reads –80 dB, then the value becomes –110 dBc/Hz). Record the
dBc/Hz value in Table A-2, “Spectrum Analyzer 2.0 GHz (+4 dBm Input) SSB Phase Noise Verification”
on page A-2.
19. Repeat Step 17 and Step 18 for 20 kHz marker delta, 30 kHz marker delta, and 100 kHz marker delta.
Record the dBc/Hz values in Table A-2.
20. Repeat Step 7through Step 18 for 1000 kHz marker delta, and 10 MHz marker delta using the
appropriate test parameters listed in Table A-2. For example, use 2000.50 Hz as the Center Frequency,
1.11 MHz for the Span, 1 kHz for RBW, 30 Hz for VBW and 1 MHz for the marker delta.
21. Repeat Step 3through Step 20 for 3.44 GHz with an RF output level of +5 dBm, 3.46 GHz with an RF
output level of +5 dBm, and 12.0 GHz CW with an RF output level of +13 dBm, and also 19 GHz CW
with an RF output level of 0 dBm for the MS2724B only. Use the test parameters that are listed in the
respective test record tables for each frequency offset value.
Record the dBc/Hz values in Table A-3 on page A-2, and in Table A-4, Table A-5, and Table A-6
on page A-3, as required.

2-2 Spectrum Analyzer Function Verification Performance Verification
2-6 PN: 10580-00165 Rev. D Models MS2723B and MS2724B MM
Spectrum Analyzer Resolution Bandwidth Accuracy
This test verifies the accuracy of the resolution bandwidth settings.
Required Equipment:
•Anritsu MG3692x Synthesized Signal Generator
•Frequency Reference Symmetricom Rubisource T&M
•Adapter, Anritsu Model 34NN50A
•Spectrum Master: MS2723B or MS2724B
Figure 2-3. Spectrum Analyzer Resolution Bandwidth Accuracy – Test Setup
To Ext Ref In
MG3692X
10 MHz Reference
(to back panel)
MS2724B