Anritsu Field Master Pro MS2090A User manual

Part Number: 10580-00447
Revision: A
Published: October 2022
Copyright 2022 Anritsu Company
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
Measurement Guide
Spectrum Analyzer
MS2090A Field Master Pro™
Spectrum Analyzer Included
Interference Finder Option 24
Zero-Span IF Output Option 89
Gated Sweep Option 90
Coverage Mapping Option 431
Electromagnetic Field (EMF) Measurement Option 444
Note Not all instrument models offer every option or every measurement within a given option. Refer to
the Technical Data Sheet of your instrument for available options and supported measurements.

1-2 PN: 10580-00447 Rev. A Spectrum Analyzer MG
Unauthorized Use or Disclosure
Anritsu Company has prepared the product user documentation for use by Anritsu Company personnel and
customers as a guide for the proper installation, operation, and maintenance of Anritsu Company equipment and
software programs. The drawings, specifications, and information contained therein are the property of Anritsu
Company, and any unauthorized use 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.
Export Management
The Anritsu products identified herein and their respective manuals may require an Export License or approval by
the government of the product country of origin for re-export from your country. Before you export these products or
any of their manuals, please contact Anritsu Company to confirm whether or not these items are export-controlled.
When disposing of export-controlled items, the products and manuals must be broken or shredded to such a degree
that they cannot be unlawfully used for military purposes.
Contacting Anritsu for Sales and Service
To contact Anritsu, visit the following URL and select the services in your region:
http://www.anritsu.com/contact-us

Spectrum Analyzer MG PN: 10580-00447 Rev. A Contents-1
Table of Contents
Chapter 1—General Information
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-2 Option Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Interference Analyzer (Option 24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Zero Span IF Output (Option 89). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Gated Sweep (Option 90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Coverage Mapping (Option 431) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
EMF Measurement (Option 444) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Other Options and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-3 Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
User Interface Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-4 Contacting Anritsu for Sales and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Chapter 2—Spectrum Analyzer Overview
2-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Selecting the Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Normal Spectrum View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Spectrogram View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Using Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-4 Status Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Chapter 3—Making Spectrum Analyzer Measurements
3-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Connecting a Signal Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-3 Setting Frequency Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Entering Start and Stop Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Entering a Center Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Using Offset Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Setting the Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Zero Span IF Output (Option 89). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
FREQ / SPAN Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
GESTURES Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
FREQ / SPAN Zero Span Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
IF OUTPUT Menu (Option 89). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Contents-2 PN: 10580-00447 Rev. A Spectrum Analyzer MG
Table of Contents (Continued)
3-4 Setting Amplitude Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Setting Amplitude Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Setting Amplitude Reference Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Setting Amplitude Range and Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Reference Level Offset for External Loss or External Gain . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Attenuator Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Preamplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Indications of Excessive Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
AMPLITUDE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3-5 Field Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
AMPLITUDE FIELD STRENGTH Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Example User Antenna Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Antenna Calculations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
3-6 Setting Bandwidth Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Resolution Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Video Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Setting Frequency Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Setting Bandwidth Auto Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
BANDWIDTH Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3-7 Setting Trace Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Traces in Spectrum View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Trace Math in Spectrum View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
TRACE Menu (Spectrum View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Trace Detector Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Cursors in Spectrogram View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
TRACE Menu (Spectrogram View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
TRACE CURSOR Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
Trace Recording, Playback, and CSV Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
TRACE RECORD Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
TRACE PLAYBACK Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
TRACE CSV LOGGING Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
3-8 Setting Sweep Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Single/Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Trace Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Sweep Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
SWEEP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Gated Sweep (Option 90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
GATED SWEEP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
POWER VS TIME Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Contents-3 PN: 10580-00447 Rev. A Spectrum Analyzer MG
Table of Contents (Continued)
3-9 Setting Up Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Placing a Normal Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Placing a Fixed Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Placing a Delta Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
MARKER Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
MARKER PEAK SEARCH Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Marker Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
Spectrogram with Cursors and Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46
Marker Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47
3-10 Setting Up Limit Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
Simple Limit Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
Limit Line Envelope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
LIMIT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
LIMIT EDIT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
LIMIT MOVE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
LIMIT ENVELOPE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
3-11 Setting Up Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
TRIGGER Menu in Zero Span. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55
3-12 Setting Up Advanced Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56
MEASURE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56
IQ CAPTURE Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57
IQ STREAMING Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58
IQ TRIGGER Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-60
IQ Streaming Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
3-13 Channel Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62
SETUP Menu (Channel Power). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63
3-14 Occupied Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-64
SETUP Menu (Occupied BW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65
3-15 Adjacent Channel Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66
SETUP Menu (ACP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67
3-16 Spectrum Emission Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
Spectrum Emission Mask Measurement Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
SETUP Menu (SEM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
Example Custom Signal Emission Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70
3-17 Interference Finder (Option 24). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71
SETUP Menu (Interference Finder) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72
3-18 Electromagnetic Field (EMF) Measurements (Option 444). . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
Connecting the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
SETUP Menu (EMF Measurement). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Contents-4 PN: 10580-00447 Rev. A Spectrum Analyzer MG
Table of Contents (Continued)
3-19 Coverage Mapping (Option 431). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-77
Outdoor Coverage Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78
Indoor Coverage Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80
MEASUREMENT Menu (Coverage Mapping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81
SETUP Menu (Coverage Mapping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82
COLOR SETUP Menu (Coverage Mapping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83
Status Panel (Coverage Mapping). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-84
Map Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-85
3-20 AM/FM Audio (Requires Option 24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-89
SETUP Menu (AM/FM Audio) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91
3-21 SETUP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-92
SETUP Menu (Spectrogram View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-92
3-22 Presetting the Analyzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-93
PRESET Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-93
3-23 Saving and Recalling Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
Saving a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
Recalling a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-95
FILE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96
SAVE ON EVENT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-97
Chapter 4—IA Spectrum Analyzer (Option 24)
4-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2 Making IA Spectrum Analyzer Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Initial Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-3 Setting Up Advanced Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
MEASURE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
SETUP Menu (Spectrum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4-4 Interference Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
STATUS Panel (Interference Map and Interference Polar) . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
SETUP Menu (Interference Map) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4-5 Interference Polar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
SETUP Menu (Interference Polar). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4-6 Saving and Recalling Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Saving a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Recalling a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
FILE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
SAVE ON EVENT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Spectrum Analyzer MG PN: 10580-00447 Rev. A 1-1
Chapter 1 — General Information
1-1 Introduction
This measurement guide describes the spectrum analyzer measurement functions of the Anritsu
Field Master Series handheld instruments and Remote Spectrum Monitors. Basic Spectrum Analyzer
functions are included with all Anritsu spectrum analyzers. Advanced functions are available only when the
related option is installed and activated. Refer to Section 1-2 “Option Descriptions” for references to discussion
of the supported option. Refer to Chapter 2 for an overview of the spectrum analyzer interface. Refer to
Chapter 3 for discussion of the spectrum analyzer set up and measurement settings.
Related Manuals
For additional information and literature covering your product, visit the product page of your instrument and
select the Library tab:
http://www.anritsu.com/en-US/test-measurement/products/ms2090a
http://www.anritsu.com/en-US/test-measurement/products/ms2720xa
Product Information, Compliance, and Safety
Read the Product Information, Compliance, and Safety Guide for important safety, legal, and regulatory
notices before operating the equipment.
•MS2090A PN: 10100-00069
User Guide
For a complete overview of the instrument hardware and system functions, refer to your instrument user
guide. The user guide provides information on the following topics:
•Instrument Care, maintenance and calibration
•External Connections to the top and side panels
•Power Requirements and Battery Information
•System settings such as Wi-Fi, GNSS/GPS, date/time, language settings, etc.
•Other advanced settings and tools such as file management, screenshot settings, port setup, and option
configuration.
•Diagnostics and software updates
•Listing of all related documentation such as measurement guides, programming and maintenance
manuals.

1-2 Option Descriptions General Information
1-2 PN: 10580-00447 Rev. A Spectrum Analyzer MG
1-2 Option Descriptions
This section provides a brief overview of the available options covered in this guide.
Interference Analyzer (Option 24)
The interference analyzer option includes several features for finding and analyzing interfering signals. This
option adds advanced measurement setups to the basic spectrum analyzer. It additionally adds an Interference
Analyzer mode for displaying signal data on maps to aid in geo-locating interfering signals. Refer to the
sections below for information on each measurement:
•“Interference Finder (Option 24)”
•“AM/FM Audio (Requires Option 24)”
•“Interference Map”
•“Interference Polar”
Zero Span IF Output (Option 89)
Zero span IF output adds an IF output connector to the top panel and additional menu controls to the
FREQ/SPAN menu. Refer to “Zero Span IF Output (Option 89)” for information about using this feature.
Gated Sweep (Option 90)
Gated sweep is used for advanced sweep setups and adds additional menu controls to the SWEEP menu. Refer
to “Gated Sweep (Option 90)”
Coverage Mapping (Option 431)
Refer to “Coverage Mapping (Option 431)”section for more information.
EMF Measurement (Option 444)
Refer to “Electromagnetic Field (EMF) Measurements (Option 444)” section for more information.
Other Options and Features
For descriptions of other options and features not covered in this guide, refer to your instrument user guide or
the product page for a comprehensive list of available documentation.
Note
Not all instrument models offer every option. For example, Coverage Mapping option is offered
as a 90-day time limited option by ordering Option 9431. The option start time begins when the
user first activates the option. Please refer to the Technical Data Sheet of your instrument for
information on purchasing and activating time limited options

General Information 1-3 Document Conventions
Spectrum Analyzer MG PN: 10580-00447 Rev. A 1-3
1-3 Document Conventions
The following conventions are used throughout the MS2090A documentation set.
User Interface Navigation
The MS2090A user interface consists of menus, buttons, toolbars, and dialog boxes. Elements in navigation
paths are separated as follows: MARKER > PEAK SEARCH > NEXT PEAK.
Illustrations
Screen-captured images contained in this document are provided as examples. The chapters included in this
measurement guide provide information on advanced measurement features, instrument settings and menu
overviews, for a featured option. The actual displays, screen menus, and measurement details may differ based
on the instrument, model, firmware version, installed options, and current instrument settings.
1-4 Contacting Anritsu for Sales and Service
To contact Anritsu, visit the following URL and select the services in your region:
http://www.anritsu.com/contact-us

1-4 Contacting Anritsu for Sales and Service General Information
1-4 PN: 10580-00447 Rev. A Spectrum Analyzer MG

Spectrum Analyzer Overview 2-1 Introduction
Spectrum Analyzer MG PN: 10580-00447 Rev. A 2-1
Chapter 2 — Spectrum Analyzer Overview
2-1 Introduction
This chapter provides an overview of the spectrum analyzer user interface and describes the main graphical
displays and menus presented in the spectrum analyzer measurement mode.
2-2 Selecting the Analyzer
The instrument analyzers are selected from the 9-dot icon or the current measurement icon. To select an
analyzer, press the 9-dot icon in the title bar or the current measurement icon to display the available
analyzers, illustrated in Figure 2-1. Simply touch the desired icon to load the new analyzer. The analyzers
available for selection depend on the options that are installed and activated on your instrument. Some
measurements and views are accessed via other measurement setup menus.
Note that not all analyzers are included in all of the Field Master Series instruments.
.
Normal Spectrum View
Normal Spectrum view is the default view and is suitable for viewing signals in the frequency domain where
signal amplitude, bandwidth, and harmonic qualities can be studied. Select spectrum view from MEASURE >
VIEW > Normal. The sample display below is set up with a single trace enabled and with a marker and the
upper limit line envelope set.
Figure 2-1. Example Analyzers

2-2 Selecting the Analyzer Spectrum Analyzer Overview
2-2 PN: 10580-00447 Rev. A Spectrum Analyzer MG
1. Status Panel: Each measurement features a unique status panel that displays settings and information relevant
to the current measurement and view settings. Refer to the “Status Panel” on page 2-5, for more information.
2. Markers: Markers are displayed as green diamonds on the trace to which they are assigned. The active marker
is shown as a solid green diamond with a dashed vertical line. The marker amplitude and frequency will be
displayed in green text on the top left edge of the display. In this example, a marker is shown at the signal peak
with the marker table enabled. Double tap the marker to open a quick access peak search menu.
3. Limit Lines: Limit lines are shown as red (failing) or green (passing) lines with gray circles for each limit line
point. Limit lines can be set up point-by-point or by using the envelope feature to quickly set a sloped or square
envelope. The currently selected limit line point is shaded in gray. When limit lines are enabled, a pass/fail status
is shown in the upper right of the window. If the trace crosses the limit, the trace color will turn red and the limit
will indicate a failure. The limit is only applied to the active trace (see Section 3-7 “Setting Trace Parameters”),
which is indicated next to the pass/fail.
4. Measurement Settings: The x-axis shows the start, center, and stop frequencies. The y-axis displays the
amplitude of the graticule lines. RBW/VBW, span, sweep time, and number of trace point settings are shown
along the bottom of the spectrum display. If either resolution bandwidth or video bandwidth is set to manual, the
“#” symbol will precede its label. If an offset frequency is entered, the offset value is displayed in the left side
status panel. Pressing any of the editable parameters opens the keypad to edit the value directly.
Information-only displays cannot be changed.
5. Multiple Trace Display: Each trace has a unique color and each can be set to Clear/Write, Average, Min or
Max Hold, Rolling Average, Rolling Min or Max Hold, T1-T2, T2-T2. Traces can have Peak, RMS/Average,
Negative, Sample, or Normal detectors. Traces can be set to Active, Hold/View, or Blank.
Figure 2-2. Normal Spectrum View
5
4
3
12

Spectrum Analyzer Overview 2-2 Selecting the Analyzer
Spectrum Analyzer MG PN: 10580-00447 Rev. A 2-3
Spectrogram View
Spectrogram view is useful for identifying intermittent signals and for providing historical signal data in a
comprehensive view. It provides a multi-dimensional “waterfall” display representing frequency, time, and
amplitude. Frequency and time are shown on a typical two-dimensional scale while amplitude is displayed in
the color dimension. The color is set by adjusting the color range of the color bar.
Select Spectrogram view from MEASURE > VIEW > Spectrogram. Once Spectrogram view is selected, the
color bar can be configured from the SETUP menu. Refer to “SETUP Menu (Spectrogram View)” on page 3-92
for more information on setting up the Spectrogram view.
1. Color Bar: The color bar is used to adjust the colors displayed at different amplitude levels. The color bar shown
here represents the range of colors that will be displayed. This bar can be dragged up or down to adjust the
coverage area. If signals or noise is outside of the color bar range, then black is displayed. The color bar top and
bottom setting, and the overall hue to the color range is set via the “SETUP Menu (Spectrogram View)”
on page 3-92, which can be opened by pressing the color bar.
2. Spectrum Window: The upper display area shows spectrum trace data in the frequency domain. Up to six
traces can display data from different times depending on how the corresponding cursors are set in the
spectrogram display below. Note that the spectrum display shows trace amplitude (vertical axis) data in the time
(horizontal axis) domain.
3. Spectrogram Window: The lower display area shows spectrogram trace data in the time (vertical axis),
frequency (horizontal axis), and amplitude (color) domains. The bottom of the spectrogram displays the current
sweep at the current time (0 ms) or position 0. When a sweep completes, the entire display is shifted up and the
new trace is added to the bottom of the spectrogram. The spectrogram holds 142 sweeps (cursor positions) and
the stop time reflects the time taken to complete all of the sweeps.
4. Cursors (C1 to C6): Cursor information for the currently set cursor type (time or position) is shown in the status
panel. Cursors are shown on the spectrogram as white lines at the currently set cursor time or position. Refer to
“Spectrogram with Cursors and Markers” on page 3-46.
5. Markers: Marker and marker data are shown in a variety of locations. Markers can be placed on different
cursors to help you compare measurements at different points in time as well as frequency. Refer to
“Spectrogram with Cursors and Markers” on page 3-46.
Figure 2-3. Spectrogram View
1
4
2
3
5

2-3 Main Menu Spectrum Analyzer Overview
2-4 PN: 10580-00447 Rev. A Spectrum Analyzer MG
2-3 Main Menu
The main menu is the primary access point for all instrument controls and measurement selections. The main
function for each main menu button is described below.
Using Menus
Instrument setup, control, and measurement functions are performed through the use of menus. Menu
behaviors are summarized below:
•Pressing a main menu button opens an associated menu.
•The name of the button pressed in the main menu is reflected in the title bar of the resulting menu.
•Menu buttons can change for various measurement settings, instrument setup parameters, and
measurement views.
•Pressing the corresponding main menu button for a menu closes the menu.
•Touching status data, a parameter field, or label in the display area opens the corresponding menu and
the associated keypad for editing that parameter setting.
•Pressing Accept, Cancel, or the X in the upper right corner closes the menu or keypad.
-FREQ SPAN: Contains all frequency control settings such as center frequency, start and
stop frequency, span, frequency offset, and frequency step. Refer to Section 3-3 “Setting
Frequency Parameters”.
AMPLITUDE: Provides access to all amplitude-related settings including reference level,
graticule scale, and attenuator/preamp settings. Refer to Section 3-4 “Setting Amplitude
Parameters”.
BANDWIDTH: Provides access to resolution and video bandwidth settings and Auto
ratios, and sets the bandwidth filter types. Refer to Section 3-4 “Setting Amplitude
Parameters”.
TRACE: Provides trace/cursor and detection-related controls to set trace/cursor
behaviors, presets, and access to the trace/detector settings table. Refer to
Section 3-7 “Setting Trace Parameters”.
SWEEP: Provides controls for sweep behaviors, number of measurement points, and
gated sweep settings (Option 90). Refer to Section 3-8 “Setting Sweep Parameters”.
MARKER: Used to enable and set all marker-related parameters and provides access to
the marker table. Refer to Section 3-9 “Setting Up Markers”.
LIMIT: Provides controls for setting up limit lines and limit alarms. Refer to
Section3-10“Setting Up Limit Lines”.
TRIGGER: Controls the trigger source, delay and holdoff, and trigger slope settings.
Refer to Section 3-11 “Setting Up Triggering”.
MEASURE: Used to select measurements such as spectrum, channel power, occupied
bandwidth, adjacent channel power, spectral emissions mask, and opens the
spectrogram. Refer to Section 3-12 “Setting Up Advanced Measurements”.
SETUP: Measurement controls for setting up advanced measurements. Refer to “Setting
Up Advanced Measurements” on page 3-56).
PRESET: Opens the PRESET menu with selective trace, marker, limits, and
measurement preset commands, or an all inclusive analyzer preset command. Refer to
Section 3-22 “Presetting the Analyzer”.
FILE: Used to save and recall instrument setups and measurements, limit lines, and
screen images. Also provides access to save on event controls. Refer to “FILE Menu”
on page 3-96.
Figure 2-4. Main Menu

Spectrum Analyzer Overview 2-4 Status Panel
Spectrum Analyzer MG PN: 10580-00447 Rev. A 2-5
2-4 Status Panel
The status panels and features illustrated in this section are unique to the spectrum analyzer and to the
particular measurement and view that is selected. Below is the spectrum analyzer status panel with the
corresponding minimized status panel icons, that covers basic spectrum, spectrogram, channel power, occupied
bandwidth (OBW), adjacent channel power (ACP), and spectral emission mask (SE) measurements (selected
via MEASURE > MEASUREMENTS menu).
REF LEVEL: Sets the reference level of the top graticule line in the selected units.
If the reference level offset is not zero, OFFSET REF LEVEL is displayed at this
location.
Refer to Section 3-4 “Setting Amplitude Parameters” on page 3-8.
SCALE/DIV: Sets the graticule scale/division for log-based units. This setting does
not apply to linear units.
REF LEVEL OFFSET: Sets the reference level offset in dB units. This setting can
compensate for the presence of external input attenuation or gain.
FREQ OFFSET: Accounts for frequency conversions outside of the analyzer.
Refer to Section 3-3 “Setting Frequency Parameters” on page 3-2.
ATTEN LEVEL: When auto attenuation is off, sets input attenuation.
PRE AMP: Toggles the low-noise front-end preamplifier on or off. Refer to
Section 3-4 “Setting Amplitude Parameters” on page 3-8.
TRACES/CURSORS: Displays the current status of up to six traces or cursors in a
quick-view summary. When the measurement view is set to Normal (Spectrum),
trace information is displayed in this area. When the measurement view is set to
Spectrogram, cursor information is displayed in this area. Cursors are available in
the Spectrum measurement with the Spectrogram view selected.
The summary information includes the trace or cursor number, type, mode, and
detector type. The active trace will show a highlighted background with the mode
and detector type restated under the table. In Spectrogram, a reference trace (T0)
will show you the settings of the trace used to fill the spectrogram. The reference
trace settings are applied to all traces and cursors while in Spectrogram view.
Pressing a trace or cursor in the summary panel activates the pressed trace or
cursor and opens the TRACE menu, allowing you to select and set up an individual
trace or cursor as desired. Refer to Section 3-7 “Setting Trace Parameters”
on page 3-19.
SWEEP: Toggles the current sweep setting between continuously or sweep once.
Refer to Section 3-8 “Setting Sweep Parameters” on page 3-36.
FREQ REFERENCE: Indicates the current frequency reference source of Internal
High Accuracy (used after GPS has lost sync, but while the internal clock still has
good GPS reference), Internal Standard Accuracy, External, or GPS Hi Accuracy
(requires GPS). The instrument automatically selects the frequency reference in the
following order of priority: external, GPS, then the internal time base.
Figure 2-5. Spectrum Analyzer Status Panel

2-4 Status Panel Spectrum Analyzer Overview
2-6 PN: 10580-00447 Rev. A Spectrum Analyzer MG
Refer to Chapter 3 for SPA measurement setup
-Pressing any of these parameters opens the associated menu with a keypad that allows
you to conveniently change the parameter value. These are the same settings found in
the right side menus.
AUTO MAX PWR: Displays in SEM measurements only. Enabling this automatically
calculates the reference channel power.
MANUAL MAX PWR: Displays in SEM measurements only. Used to manually enter the
reference channel power.
Refer to Section3-16“Spectrum Emission Mask” on page 3-68.
REF LEVEL: Sets the reference level of the top graticule line in the selected units. If the
reference level offset is not zero, OFFSET REF LEVEL is displayed at this location.
Refer to Section 3-4 “Setting Amplitude Parameters” on page 3-8.
SCALE/DIV: Sets the graticule scale/division for log-based units. This setting does not
apply to linear units.
REF LEVEL OFFSET: Sets the reference level offset in dB units. This setting can
compensate for the presence of external input attenuation or gain.
FREQ OFFSET: Accounts for frequency conversions outside of the analyzer. Refer to
Section 3-3 “Setting Frequency Parameters” on page 3-2.
ATTEN LEVEL: When auto attenuation is off, sets input attenuation.
PRE AMP: Toggles the low-noise front-end preamplifier on or off. Refer to
Section 3-4 “Setting Amplitude Parameters” on page 3-8.
TRACES/CURSORS: Displays the current status of up to six traces or cursors in a
quick-view summary. When the measurement view is set to Normal (Spectrum), trace
information is displayed in this area. When the measurement view is set to Spectrogram,
cursor information is displayed in this area. Cursors are available in the Spectrum
measurement with the Spectrogram view selected.
The summary information includes the trace or cursor number, type, mode, and detector
type. The active trace will show a highlighted background with the mode and detector
type restated under the table. In Spectrogram, a reference trace (T0) will show you the
settings of the trace used to fill the spectrogram. The reference trace settings are applied
to all traces and cursors while in Spectrogram view. Pressing a trace or cursor in the
summary panel activates the pressed trace or cursor and opens the TRACE menu,
allowing you to select and set up an individual trace or cursor as desired. Refer to
Section 3-7 “Setting Trace Parameters” on page 3-19.
SWEEP: Toggles the current sweep setting between continuously or sweep once. Refer
to Section 3-8 “Setting Sweep Parameters” on page 3-36.
FREQ REFERENCE: Indicates the current frequency reference source of Internal High
Accuracy (used after GPS has lost sync, but while the internal clock still has good GPS
reference), Internal Standard Accuracy, External, or GPS Hi Accuracy (requires GPS).
The instrument automatically selects the frequency reference in the following order of
priority: external, GPS, then the internal time base.
Figure 2-6. Spectrum Analyzer Status Panel

Making Spectrum Analyzer Measurements 3-1 Introduction
Spectrum Analyzer MG PN: 10580-00447 Rev. A 3-1
Chapter 3 — Making Spectrum Analyzer
Measurements
3-1 Introduction
The purpose of this chapter is to provide a starting point for making basic spectrum measurement setups. This
chapter describes general instrument setup, including setting up frequency, bandwidth, amplitude, span, limit
lines, and markers. After measurements are taken, refer to “File Management” section of Instrument
Overview chapter of the user guide and Section 3-23 “Saving and Recalling Measurements” on page 3-94 for a
description of saving, recalling, and managing measurement files. For detailed information about other specific
measurements, refer to the appropriate chapter in this guide.
This spectrum analyzer measurements chapter includes sections that describe resolution bandwidth, video
bandwidth, sweep, and attenuator functions. For example, resolution bandwidth is determined by the
intermediate frequency (IF) filter bandwidth. The spectrum analyzer traces the shape of the IF filter as it
tunes past a signal. If more than one IF filter is used in a spectrum analyzer, then the narrowest one
dominates and is considered the resolution bandwidth.
Spectrum analyzer measurements include the use of additional functions beyond frequency, span, amplitude,
and marker functions. Section 3-12 through Section 3-20 cover field measurements and additional smart
measurements provided by various options.
3-2 Connecting a Signal Source
The basic setup starts with connecting a signal source to the RF In port of the instrument. For over-the-air
measurements, connect an antenna that is appropriate for the frequency range to be measured. For direct
conducted measurements, ensure the RF source does not over power the input of the analyzer.
After an RF source is connected to the input connector, follow the sections below for setting up the
measurement parameters.
Note For connector panels descriptions and torque specifications, refer to the product user guide. For
RF input power limitations, refer to the product technical data sheet.

3-3 Setting Frequency Parameters Making Spectrum Analyzer Measurements
3-2 PN: 10580-00447 Rev. A Spectrum Analyzer MG
3-3 Setting Frequency Parameters
Frequency-related parameters are set using the “FREQ / SPAN Menu” on page 3-6. The tuning frequency
range can be entered in several different ways depending upon what makes the most sense, either for the user
or for the measurement. The center frequency and span can be specified, the start and stop frequencies can be
entered.
Entering Start and Stop Frequencies
The frequency settings are displayed along the bottom of the spectrum or spectrogram graph. These
parameters can be accessed directly or via the FREQ SPAN menu.
1. Press FREQ SPAN on the main menu.
2. Press START FREQUENCY to open the start frequency parameter entry keypad.
3. Enter the desired start frequency. When entering a frequency with the keypad, available frequency units
(GHz, MHz, kHz, and Hz) will be displayed along the left edge of the menu.
4. Press the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
5. Press STOP FREQUENCY to open the stop frequency parameter entry keypad.
6. Enter the desired stop frequency. When entering a frequency with the keypad, available frequency units
(GHz, MHz, kHz, and Hz) will be displayed along the left edge of the menu.
7. Press the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
The center frequency will be set to exactly the middle of the start and stop frequencies. The current settings
are shown along the bottom of the spectrum or spectrogram graph (refer to the user guide for view the relevant
graphs).
Entering a Center Frequency
1. Press FREQ SPAN on the main menu.
2. Press CENTER FREQUENCY to open the center frequency parameter entry keypad.
3. Enter the desired center frequency. When entering a frequency with the keypad, available frequency
units (GHz, MHz, kHz, and Hz) will be displayed along the left and right edge of the menu.
4. Press the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
The current settings are shown along the bottom of the spectrum or spectrogram graph.
Note
To quickly move the start or stop frequency value up or down, press the + or – slider controls to
increment the frequency by the set FREQUENCY STEP. You can also drag the frequency using the
slider.
Note
To quickly move the center frequency value up or down, press the + or - slider controls to increment
the center frequency by the set FREQUENCY STEP. You can also drag the center frequency using
the slider or by dragging the trace directly.

Making Spectrum Analyzer Measurements 3-3 Setting Frequency Parameters
Spectrum Analyzer MG PN: 10580-00447 Rev. A 3-3
Using Offset Frequency
A user-defined frequency offset can be entered to adjust the frequency that is displayed on the instrument from
the actual swept frequency. For example, if the DUT is an antenna system receiving signals in the 10 GHz
range and offsetting the signals to the 1 GHz range, you can set a frequency offset in the spectrum analyzer in
order to display the actual received antenna frequency in the sweep window.
Both positive and negative offset values are allowed. Negative offsets can be useful for seeing differences from
expected values. Enter a negative offset of the expected value, and the received antenna frequency should
display in the 0 Hz range.
When enabled, the offset value is displayed at the left of the screen in the status panel (see Section 2-4 “Status
Panel”). To remove a frequency offset, open the FREQ SPAN menu and set FREQUENCY OFFSET to 0Hz.
You can also access this parameter directly from the left side status panel.
Setting the Span
1. Press FREQ SPAN on the main menu.
2. Press SPAN to open the span frequency parameter entry keypad.
3. Enter the desired span frequency. When entering a frequency with the keypad, available frequency units
(GHz, MHz, kHz, and Hz) will be displayed along the left edge of the menu.
4. Press the appropriate frequency unit to terminate the entry or press ACCEPT to terminate the entry
with the current frequency unit.
5. To select full span, press the FULL SPAN. Selecting full span overrides any previously set start and stop
frequencies.
Note Offset frequency apply to start, stop, center, and marker frequencies.
Note To quickly move the span value up or down, press the + or - slider controls to increment the span in
a 1:2:5 sequence. You can also drag the span using the slider or by pinching the trace in or out.

3-3 Setting Frequency Parameters Making Spectrum Analyzer Measurements
3-4 PN: 10580-00447 Rev. A Spectrum Analyzer MG
Zero Span IF Output (Option 89)
Zero Span IF output effectively allows the spectrum analyzer to be used as a receiver front-end, converting the
input signal at the spectrum analyzer RF In connector to a signal centered at the IF output frequency. You can
then process the IF signal in a way that meets your needs. That may mean using an A-to-D converter or some
other signal processing method.
Zero Span IF Output provides an IF signal of 325 MHz with FFT capture bandwidth ≤32 MHz and 300 MHz
with FFT capture bandwidth = 100 MHz. The nominal RF output level is –4 dBm with a 10 MHz, –20 dBm
input, and with 0 dB input attenuation and preamp off. The spectrum can be inverted in certain RF input
bands. The IF output signal is present only when the spectrum analyzer span is set to ZERO SPAN and the
IF OUTPUT is toggled on (see “FREQ / SPAN Zero Span Menu” on page 3-7). You can select the IF output
bandwidth of 750 kHz, 7.5 MHz, 14 MHz, 30 MHz, or 100 MHz using the “IF OUTPUT Menu (Option 89)”
on page 3-7.
The normal IF BW uses analog bandpass filters in the normal RBW chain. By changing the RBW, different
filter bandwidths are selected. While the IF bandwidth is influenced by the selection of RBW filters, the digital
RBW filters themselves are not employed.
Note The selectable bandwidth values may differ among instrument models and options.
Table 3-1.
Selected IF Filter Bandwidth IF Output Frequency
100 MHz 300 MHz
30 MHz 325 MHz
14 MHz 325 MHz
7.5 MHz 325 MHz
750 kHz 325 MHz