Anritsu Spectrum Master MS2720T User manual

Maintenance Manual
Spectrum Master™
MS2720T
High Performance Handheld Spectrum Analyzer
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
Part Number: 10580-00342
Revision: D
Published: June 2016
Copyright 2016 Anritsu Company

TRADEMARK ACKNOWLEDGMENTS
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

MS2720T MM PN: 10580-00342 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 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: 10580-00342 Rev. D MS2720T 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.

MS2720T MM PN: 10580-00342 Rev. D 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
Chapter 2—Spectrum Analyzer Verification
2-2 Frequency Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Internal Reference Frequency Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-4 Single Side Band (SSB) Phase Noise Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2-5 Spurious Response Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-6 Input Related Spurious (IRS) Signals Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
1000 MHz Input Related Spurious Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3273 MHz Input Related Spurious Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
8000 MHz Input Related Spurious Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-7 Resolution Bandwidth Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2-8 Absolute Amplitude Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
50 MHz Amplitude Accuracy Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Amplitude Accuracy Across Frequency Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Measuring Amplitude Accuracy Across Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2-9 Residual Spurious Response Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Residual Spurious Response Test with Preamp Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Residual Spurious Response Test with Preamp On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2-10 Displayed Average Noise Level (DANL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Preamp On Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Preamp Off Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
2-11 Third Order Intercept (TOI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
2400 MHz TOI Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
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 809, 813 or 820 Tracking Generator Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Tracking Generator Frequency Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Tracking Generator Power Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-4 Option 880, GSM/GPRS/EDGE Signal Analyzer Verification. . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
GSM Burst Power, Frequency Error, and Phase Error Tests . . . . . . . . . . . . . . . . . . . . . . . 3-8
EDGE Burst Power, Frequency Error and Residual Error Tests . . . . . . . . . . . . . . . . . . . . 3-10

Contents-2 PN: 10580-00342 Rev. D MS2720T MM
Table of Contents (Continued)
3-5 Option 881 WCDMA/HSDPA Signal Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
WCDMA Absolute Power Accuracy Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
WCDMA Occupied Bandwidth (OBW) Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
WCDMA RF Channel Power Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
HSDPA RF Channel Power Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Error Vector Magnitude (EVM) Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
3-6 Option 882, TDSCDMA Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
TDSCDMA Channel Power, Frequency Error, EVM, and Tau Test Procedure . . . . . . . . 3-24
3-7 Option 883, LTE Signal Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
LTE Channel Power Accuracy Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
LTE Frequency Error Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
3-8 Option 883, TD-LTE Signal Analyzer Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
TD-LTE Channel Power Accuracy Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
TD-LTE Frequency Error Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
3-9 Option 884, CDMA Signal Analyzer Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
cdmaOne Channel Power, Frequency Error, Rho and Tau Tests . . . . . . . . . . . . . . . . . . . 3-35
CDMA2000 Channel Power, Frequency Error, Rho and Tau Tests . . . . . . . . . . . . . . . . . 3-36
3-10 Option 884, EVDO Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
8PSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . . . 3-38
QPSK Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . . . 3-39
16QAM Modulation Channel Power, Frequency Error, Rho, and Tau Tests . . . . . . . . . . . 3-39
Idle Slot Channel Power, Frequency Error, Rho, and Tau Tests. . . . . . . . . . . . . . . . . . . . 3-39
3-11 Option 885, Fixed WiMAX Signal Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Fixed WiMAX Channel Power Accuracy Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Fixed WiMAX Residual EVM and Frequency Error Tests . . . . . . . . . . . . . . . . . . . . . . . . 3-43
3-12 Option 885, Mobile WiMAX Signal Analyzer Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
Mobile WiMAX Channel Power Accuracy Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
Channel Power Accuracy (10 MHz Bandwidth and 10 ms Frame Length) . . . . . . . . . . . . 3-46
Channel Power Accuracy (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . . . . . . . . . 3-47
Mobile WiMAX Residual EVM and Frequency Error Tests (Option 885). . . . . . . . . . . . . . 3-49
Residual EVM and Frequency Error (10 MHz Bandwidth and 10 ms Frame Length) . . . . 3-50
Residual EVM and Frequency Error (5 MHz Bandwidth and 5 ms Frame Length) . . . . . . 3-51
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 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2 Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-3 Opening the Spectrum Master Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-4 Tracking Generator Module Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5-5 Spectrum Analyzer Module Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5-6 Main PCB Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5-7 GPS (Option 31) Module Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

MS2720T MM PN: 10580-00342 Rev. D Contents-3
Table of Contents (Continued)
5-8 Fan Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5-9 LCD Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5-10 Keypad Membrane and Main Keypad PCB Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5-11 Touch Screen Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Chapter 6—Troubleshooting
6-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-2 Turn-on Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-3 Other Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
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-34
Option 31 GPS Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-34
Option 809, 813, 820 Tracking Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-34
Option 880, GSM/GPRS/EDGE RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-36
Option 880, GSM/GPRS/EDGE RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . A-37
Option 880, GSM/GPRS/EDGE RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . A-38
Option 880, GSM/GPRS/EDGE Demodulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-39
Option 880, GSM/GPRS/EDGE Demodulator (Continued) . . . . . . . . . . . . . . . . . . . . . . . . A-40
Option 881 WCDMA and HSDPA RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-41
Option 881 WCDMA and HSDPA RF Measurements (Continued) . . . . . . . . . . . . . . . . . A-42
Option 881 WCDMA and HSDPA RF Measurements (Continued) . . . . . . . . . . . . . . . . . A-43
Option 882, TDSCDMA Signal Analyzer Option Verification . . . . . . . . . . . . . . . . . . . . . . A-44
Option 883 LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-45
Option 883, LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-46
Option 883 TD-LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-47
Option 883, TD-LTE Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-48
Option 884 CDMA RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-49
Option 884 cdmaOne and CDMA2000 1xRTT Demodulator . . . . . . . . . . . . . . . . . . . . . . A-50
Option 884, EVDO RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-51
Option 884, EVDO RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-52
Option 884 EVDO Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-52
Option 884 EVDO Demodulator (Continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-53
Option 885 Fixed WiMAX RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-54
Option 885 Fixed WiMAX Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-55
Option 885 Mobile WiMAX RF Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-56
Option 885 Mobile WiMAX RF Measurements (Continued) . . . . . . . . . . . . . . . . . . . . . . . A-57
Option 885 Mobile WiMAX Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-58

Contents-4 PN: 10580-00342 Rev. D MS2720T MM

MS2720T MM PN: 10580-00342 Rev. D 1-1
Chapter 1 — General Information
1-1 Introduction
This manual provides maintenance instructions for Anritsu Spectrum Master Model MS2720T. 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: 10580-00342 Rev. D MS2720T MM
1-3 Recommended Test Equipment
The following test equipment is recommended for use in testing and maintaining Anritsu Model MS2720T with
option MS2720T/709, MS2720T/713, MS2720T/720, MS2720T/732, or MS2720T/743.
•Table 1-1 is a list of test equipment that is required for verifying the spectrum analyzer functions on
Model MS2720T with option MS2720T/709, MS2720T/713, or MS2720T/720.
•Table 1-2 is a list of test equipment that is required for verifying the spectrum analyzer functions on
Model MS2720T with option MS2720T/732 or MS2720T/743.
•Table 1-3 is a list of test equipment that is required for verifying the functions of installed options on any
MS2720T Model.
•Table 1-4 is a list of replaceable parts for the MS2720T Spectrum Master.
a. Note that MG3692A models require Option 15 to achieve power of +16 dBm at 3.5 GHz. MG3692B and MG3692C 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, MG3692B, or
MG3692C with Options 2A, 3, 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 MS2720T/720) 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 MS2720T with
option MS2720T/720.

Chapter 1 — General Information 1-3 Recommended Test Equipment
MS2720T MM PN: 10580-00342 Rev. D 1-3
b. Note that MG3692A models require Option 15 to achieve power of +16 dBm at 3.5 GHz. MG3692B and MG3692C 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, MG3692B, or
MG3692C with Options 2A, 3, 4, 22, 15xb
Synthesized Signal Generator Frequency: 0.1 Hz to 50 GHz,
Power Output: +16 dBm,
Step attenuator installed
Anritsu Model MG3695C
with Options 2A, 3, 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 MS2720T with option MS2720T/743) even though the chart above
specifies 40 GHz (per manufacturers specifications).

1-3 Recommended Test Equipment Chapter 1 — General Information
1-4 PN: 10580-00342 Rev. D MS2720T 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, MG3692B or
MG3692C with options 2A, 3, 4, 15, and 22c
Vector Signal Generator Frequency: 100 kHz to 6 GHz Anritsu Model MG3700A with Options
MG3700A-002, MG3700A-021d, and
MG3700A-011
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: 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: 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
MS2720T MM PN: 10580-00342 Rev. D 1-5
c. Note that MG3692A models require Option 15 to achieve power of +13 dBm. MG3692B and MG3692C 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
ND75313eMS2720T Main PCB Assembly with Option 9 for s/n < 1543111 or s/n 1544002,
1544004, 1544015, 1544026, 1544028, 1545047, and 1545050
ND75313eMS2720T Main PCB Assembly with Option 9 for s/n > 1543110 with the following
exceptions: s/n 1544002, 1544004, 1544015, 1544026, 1544028, 1545047, and
1545050
ND75315 MS2720T-0709 Spectrum Analyzer PCB Assembly for s/n < 1504014
ND81238 MS2720T-0709 Spectrum Analyzer PCB Assembly for s/n > 1504013
ND75316 MS2720T-0713 Spectrum Analyzer PCB Assembly
ND81240 MS2720T-0720 Spectrum Analyzer PCB Assembly for s/n < 1501076 and
s/n 1503029, 1503034, 1503175, 1503181, 1504076, 1505111, and 1505124
ND75317 MS2720T-0720 Spectrum Analyzer PCB Assembly for s/n > 1505146 and
s/n 1501076, 1503077, 1503185, 1504019, 1504029, 1504044, 1504046, 1504047,
1504082, 1504141, 1504144, 1504145, 1504147, 1504149, 1504151, 1504152,
1504157, 1504160, 1504165, 1505002, 1505003, 1505004,1505005, and 1505147
ND75318 MS2720T-0732 and MS2720T-0743 Spectrum Analyzer PCB Assembly for
MS2720T-0732 s/n < 1451132 and for MS2720T-0743 s/n < 1501051
ND81080 MS2720T-0732 Spectrum Analyzer PCB Assembly for s/n > 1451131
ND82204 MS2720T-0743 Spectrum Analyzer PCB Assembly for s/n > 1501050
ND75314 MS2720T GPS Receiver PCB (Option 31)
ND75319 MS2720T-0809 and MS2720T-0813 Tracking Generator
ND75320 MS2720T-0820 Tracking Generator
3-790-661 Gasket material for case edge
3-15-165 LCD Display for s/n < 1543111 or s/n 1544002, 1544004, 1544015, 1544026,
1544028, 1545047, and 1545050
3-15-174 LCD Display for s/n > 1543110 with the following exceptions: s/n 1544002, 1544004,
1544015, 1544026, 1544028, 1545047, and 1545050
ND73867 Touch Screen with Gasket (replaced by ND80480)
ND80480 Touch Screen with Gasket and Protection (replaced ND73867)
2000-1685-R Soft Carrying Case
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: 10580-00342 Rev. D MS2720T 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. This should include all the hardware and software options that make up the respective
unit. The options are listed on a label on the back of the MS2720T and are also shown in the System (Shift 8) / Status display.
3-71650-1 Case Top Only (excludes model ID Label, LCD, Touch screen, rotary switch,
speaker and keypad items)
3-61365-1 Case Bottom Only (excludes all Tilt Bail components)
3-65314 Left and Right Tilt Bail (Plastic) Holders
3-65316 Tilt Bail Stand (Metal)
3-65684 Tilt Bail (Plastic) Clip
3-73312-9 Model MS2720T with 9 kHz - 9 GHz ID Label (option 709)
3-73312-13 Model MS2720T with 9 kHz - 13 GHz ID Label (option 713)
3-73312-20 Model MS2720T with 9 kHz - 20 GHz ID Label (option 720)
3-73312-32 Model MS2720T with 9 kHz - 32 GHz ID Label (option 732)
3-73312-43 Model MS2720T with 9 kHz - 43 GHz ID Label (option 743)
3-61379-1 Battery Door
633-75 Li-ion Battery Pack 7.5 Ah
3-67146 Type N RF Input connector (N JACK-SMA JACK)
3-71353 Type K(m) Rugged RF Input connector
ND70948 Fan Assy
40-187-R AC to DC Power Converter
3-74999-3 Main Keypad PCB
3-71641 Main Keypad (Rubber)
ND75321 Speaker Assy with Gaskets
3-410-103 Rotary Encoder (excluding knob)
3-61360-2 Encoder Knob (excluding encoder)
3-61470 Hand Strap
3-61571 Plastic, Ring Holder
Table 1-4. List of Replaceable Parts (2 of 2)
Part Number Description

MS2720T MM PN: 10580-00342 Rev. D 2-1
Chapter 2 — Spectrum Analyzer Verification
2-1 Introduction
This chapter describes the verification process for the spectrum analyzer options in the MS2720T
Spectrum Master. Verification tests that are associated with other 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 2-5
•“Spurious Response Verification” on page 2-7
•“Input Related Spurious (IRS) Signals Verification” on page 2-9
•“Resolution Bandwidth Accuracy Verification” on page 2-12
•“Absolute Amplitude Accuracy Verification” on page 2-14
•“Residual Spurious Response Verification” on page 2-20
•“Displayed Average Noise Level (DANL)” on page 2-22
•“Third Order Intercept (TOI)” on page 2-23

2-2 Frequency Accuracy Verification Chapter 2 — Spectrum Analyzer Verification
2-2 PN: 10580-00342 Rev. D MS2720T MM
2-2 Frequency Accuracy Verification
The following test is used to verify the CW frequency accuracy of the Spectrum Analyzer in the MS2720T
Spectrum Master.
Equipment Required for MS2720T with option MS2720T/709, MS2720T/713, or MS2720T/720
•Anritsu MG3692x Synthesized Signal Source (see equipment list for required options)
•Frequency Reference Symmetricom Rubisource T&M
•Anritsu 34RKNF50 50 ohm Adapter
•Anritsu 15NN50-1.5C RF Coaxial Cable
•BNC male to BNC male Coaxial Cable
Equipment Required for MS2720T with option MS2720T/732 or MS2720T/743
•Anritsu MG3695C Synthesized Signal Source (see equipment list for required options)
•Frequency Reference Symmetricom Rubisource T&M
•Anritsu 34VKF50 50 ohm Adapter
•Anritsu 3670K50-2 RF Coaxial Cable
•BNC male to BNC male Coaxial Cable
Procedure
1. Connect the 10 MHz Reference source to the Anritsu MG3692x or MG3695C Synthesized Signal Source.
2. Turn on the 10 MHz Reference Standard and the Anritsu MG3692x or MG3695C Synthesized Signal
Source.
3. Set the MG3692x or MG3695C output to 1 GHz CW, with an RF Output Level of –30 dBm.
4. Connect the output of the source to the RF Input of the Spectrum Master.
5. Turn on the Spectrum Master.
6. Press the Shift key and then the Mode (9) key. Rotate the knob to highlight Spectrum Analyzer and then
press the Enter key to switch to Spectrum Analyzer mode.
7. Press the Shift key, the Preset (1) key, and then the Preset submenu key to reset the instrument to the
default starting conditions. Press the Shift key, the Sweep (3) key, Sweep Mode submenu key and then
the Performance submenu key.
8. Press the Amplitude main menu key and then press the Reference Level submenu key.
9. Use the keypad to enter –10 and select the dBm submenu key.
10. Press the Span main menu key, use the keypad to enter 10, and select the kHz submenu key.
11. Press the BW main menu key and select the RBW submenu key.
12. Use the keypad to enter 100 and select the Hz submenu key.
13. Press the VBW submenu key, use the keypad to enter 30 and then select the Hz submenu key.
14. Press the Freq main menu key and select the Center Freq submenu key.
15. Use the keypad to enter 1and select the GHz submenu key.
Note Do not connect the external 10 MHz Reference to the Spectrum Master.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

Chapter 2 — Spectrum Analyzer Verification 2-3 Internal Reference Frequency Adjustment
MS2720T MM PN: 10580-00342 Rev. D 2-3
16. Press the Marker main menu key, select the More submenu key, set Counter Marker to On, select the
Back submenu key and select the Peak Search submenu key.
17. Verify that the marker frequency is within specification (see test record in Table A-1, “Spectrum Analyzer
Frequency Accuracy” on page A-2.)
18. Set the MG3692x or MG3695C frequency to 7 GHz.
19. Set the MS2720T center frequency to 7 GHz.
20. Press the Marker main menu key, and select the Peak Search submenu key.
21. Verify that the marker frequency is within specification.
22. Record the results in the test records in Table A-1.
2-3 Internal Reference Frequency Adjustment
Use this procedure to adjust the frequency if the unit fails the Spectrum Analyzer Frequency Accuracy
verification test.
Equipment Required for MS2720T with option 709, 713, or 720
•Anritsu MG3692x Synthesized Signal Source (see equipment list for required options)
•Frequency Reference Symmetricom Rubisource T&M
•Anritsu 34RKNF50 50 ohm Adapter
•Anritsu 15NN50-1.5C RF Coaxial Cable
•BNC male to BNC male Coaxial Cable
Equipment Required for MS2720T with option 732 or 743
•Anritsu MG3695C Synthesized Signal Source (see equipment list for required options)
•Frequency Reference Symmetricom Rubisource T&M
•Anritsu 34VKF50 50 ohm Adapter
•Anritsu 3670K50-2 RF Coaxial Cable
•BNC male to BNC male Coaxial Cable
Procedure
1. Connect the 10 MHz reference source to the Anritsu MG3692x or MG3695C Synthesized Signal Source.
2. Connect the output of the MG3692x or MG3695C Synthesized Signal Source to the RF In connector of the
Spectrum Master.
3. Connect the external power supply (Anritsu part number 40-168-R) to the Spectrum Master.
4. Press the ON/OFF key to turn on the Spectrum Master.
5. Press the Shift key, the Preset key (1), and then press Preset to reset the instrument to the default
starting conditions.
6. Turn on the 10 MHz reference source and the Anritsu MG3692x or MG3695C Synthesized Signal Source.
7. On the MG3692x or MG3695C Synthesized Signal Source press the System key, then press the key below
Reset to reset the instrument to the default starting conditions.
Note The MS2720T firmware must be greater than v1.10.
Note Do not connect the external 10 MHz Reference to the Spectrum Master.

2-3 Internal Reference Frequency Adjustment Chapter 2 — Spectrum Analyzer Verification
2-4 PN: 10580-00342 Rev. D MS2720T MM
8. Set the MG3692x or MG3695C output to 7 GHz with an RF output level of –30 dBm.
9. Press the Shift key and then the Sweep (3) key, and then press the Sweep Mode soft key. Select the
Performance soft key to set the instrument to Performance Sweep mode.
10. Press the Amplitude, then the Reference Level keys and use the keypad to enter –10, and then press
dBm.
11. Press Atten Lvl and then use the keypad to enter 0, and then press dB.
12. Press Freq, then Center Freq and use the keypad to enter 7, and then press GHz.
13. Press Span and use the keypad to enter 10, and then press kHz.
14. Press BW, then RBW and use the keypad to enter 100, and then press Hz.
15. Press VBW and use the keypad to enter 30, and then press Hz.
16. Press and hold the Shift key and then press the 9, 5, and 3keys together to enter the Spectrum Master’s
System Service Mode.
17. Press Frequency Calibration and then press 10 MHz Ref.
18. Use the Up and 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.
19. Power cycle the Spectrum Master to exit System Service Mode.
If the unit fails the Spectrum Analyzer Frequency Accuracy adjustment, replace the SPA PCB assembly.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
Note If the above step fails, verify that the MS2720T firmware is greater than v1.10.
Note For large changes, enter the value using the number pad and then press Decimal.

Chapter 2 — Spectrum Analyzer Verification 2-4 Single Side Band (SSB) Phase Noise Verification
MS2720T MM PN: 10580-00342 Rev. D 2-5
2-4 Single Side Band (SSB) Phase Noise Verification
This test is used to verify the single side band (SSB) phase noise of the spectrum analyzer in the MS2720T
Spectrum Master.
Equipment Required for MS2720T with option MS2720T/709, MS2720T/713, or MS2720T/720
•Anritsu MG3692x Synthesized Signal Source (see equipment list for required options)
•Frequency Reference Symmetricom Rubisource T&M
•Anritsu 34RKNF50 50 ohm Adapter
•Anritsu 15NN50-1.5C RF Coaxial Cable
•BNC male to BNC male Coaxial Cable
Equipment Required for MS2720T with option 732 or 743
•Anritsu MG3695C Synthesized Signal Source (see equipment list for required options)
•Frequency Reference Symmetricom Rubisource T&M
•Anritsu 34VKF50 50 ohm Adapter
•Anritsu 3670K50-2 RF Coaxial Cable
•BNC male to BNC male Coaxial Cable
Procedure
1. Connect the 10 MHz reference source to the Anritsu MG3692x or MG3695C Synthesized Signal Source.
2. Turn on the 10 MHz reference source and the Anritsu MG3692x or MG3695C Synthesized Signal Source.
3. Set the MG3692x or MG3695C output to 1.0 GHz CW with an RF output level of –2 dBm (–3 dBm for
MS2720T with Option 709).
4. Connect the output of the MG3692x or MG3695C Synthesized Signal Source to the RF In connector of the
Spectrum Master.
5. Turn on the Spectrum Master.
6. Press the Shift key and then the Mode (9) key. Rotate the knob to highlight Spectrum Analyzer and then
press the Enter key to switch to Spectrum Analyzer mode.
7. Press the Shift key, the Preset (1) key, and then the Preset submenu key to reset to the default starting
conditions. Press the Shift key, the Sweep (3) key, press the Sweep Mode submenu key and then the
Performance submenu key.
8. Press the Amplitude main menu key, then press the Reference Level submenu key.
9. Use keypad to enter –2 dBm (–3 dBm for units with Option 709) and select the dBm submenu key.
10. Press the Freq main menu key and select the Center Freq submenu key.
11. Use the keypad to enter 1.0 and press the GHz submenu key.
12. Press the Span main menu key, use the keypad to enter 21, and select the kHz submenu key.
13. Press the BW main menu key and select the RBW submenu key.
14. Use the keypad to enter 1and select the kHz submenu key.
15. Press the VBW submenu key and use the keypad to enter 3, then select the Hz submenu key.
16. Press the Shift key and then press the Trace (5) key, then select the Trace A Operations submenu key.
17. Press the # of Averages submenu key, use the keypad to enter 3, then press the Enter key.
18. Wait until the Trace Count displays 3/3.
19. Press the Marker main menu key and select the Peak Search submenu key.
20. Press the Delta On/Off submenu key to turn Delta on.

2-4 Single Side Band (SSB) Phase Noise Verification Chapter 2 — Spectrum Analyzer Verification
2-6 PN: 10580-00342 Rev. D MS2720T MM
21. Use the keypad to enter 10 and press the kHz submenu key.
22. Enter the measured value into Table A-2, “Spectrum Analyzer 1.0 GHz SSB Phase Noise Verification”
on page A-2.
23. Subtract 30 dB from the average value and record the Calculated Value results in Table A-2 and verify
that the result is less than the specification for 10 kHz Offset.
For example: –70 dBc measured – 30 dB = –100 dBc/Hz
24. Press the Span main menu key, use the keypad to enter 210, and select the kHz submenu key.
25. Press the Shift key and then press the Trace (5) key, then select the Trace A Operations submenu key.
26. Press the # of Averages submenu key, use the keypad to enter 3, then press the Enter key.
27. Wait until the Trace Count displays 3/3.
28. Press the Marker main menu key and select the Peak Search submenu key.
29. Press the Delta On/Off submenu key to turn Delta on.
30. Use the keypad to enter 100 and press the kHz submenu key.
31. Enter the measured value into Table A-2.
32. Subtract 30 dB from the average value and record the Calculated Value results in Table A-2 and verify
that the result is less than the specification for 100 kHz Offset.
For example: –70 dBc measured – 30 dB = –100 dBc/Hz
33. Press the Span main menu key, use the keypad to enter 2.2, and select the MHz submenu key.
34. Press the VBW submenu key and use the keypad to enter 30, then select the Hz submenu key.
35. Press the Shift key and then press the Trace (5) key, then select the Trace A Operations submenu key.
36. Press the # of Averages submenu key, use the keypad to enter 3, then press the Enter key.
37. Wait until the Trace Count displays 3/3.
38. Press the Marker main menu key and select the Peak Search submenu key.
39. Press the Delta On/Off submenu key to turn on Delta.
40. Use the keypad to enter 1and press the MHz submenu key.
41. Enter the measured value into Table A-2.
42. Subtract 30 dB from the average value and record the Calculated Value results in Table A-2 and verify
that the result is less than the specification for 1 MHz Offset.
For example: –70 dBc measured – 30 dB = –100 dBc/Hz
43. Press the Span main menu key, use the keypad to enter 22, and select the MHz submenu key.
44. Press the Shift key and then press the Trace (5) key, then select the Trace A Operations submenu key.
45. Press the # of Averages submenu key, use the keypad to enter 3, then press the Enter key.
46. Wait until the Trace Count displays 3/3.
47. Press the Marker main menu key and select the Peak Search submenu key.
48. Press the Delta On/Off submenu key to turn on Delta.
49. Use the keypad to enter 10 and press the MHz submenu key.
50. Enter the measured value into Table A-2.
51. Subtract 30 dB from the average value and record the Calculated Value results in Table A-2 of the test
records and verify that the result is less than the specification for 10 MHz Offset.
For example: –70 dBc measured – 30 dB = –100 dBc/Hz