R&S FSW Series User manual

R&S®FSW
Signal and Spectrum Analyzer
User Manual
User Manual
Version 36
1173941102
(;×ì;2)

This manual applies to the following R&S®FSW models with firmware version 3.20 and higher:
●R&S®FSW8 (1312.8000K08)
●R&S®FSW13 (1312.8000K13)
●R&S®FSW26 (1312.8000K26)
●R&S®FSW43 (1312.8000K43)
●R&S®FSW50 (1312.8000K50)
●R&S®FSW67 (1312.8000K67)
●R&S®FSW85 (1312.8000K85)
In addition to the base unit, the following options are described:
●R&S®FSW-B4, OCXO (1313.0703.02)
●R&S®FSW-B10, external generator control (1313.1622.02)
●R&S®FSW-B13, high-pass filter (1313.0761.02)
●R&S®FSW-B17, digital baseband interface (1313.0784.02)
●R&S®-K19 Noise Power Ratio measurement (1331.8283.02)
●R&S®FSW-B21, external mixer (1313.1100.XX)/ R&S®FSW-U21 (1313.6318.43)
●R&S®FSW-B24, preamplifier (1313.0832.XX)
●R&S®FSW-B25, electronic attenuator (1313.0990.02)
●R&S®FSW-B160 bandwidth extension (1313.1668.02) / R&S®-U160 (1313.3754.02)
●R&S®FSW-B320 bandwidth extension (1313.7172.02) / R&S®-U320 (1313.7189.02)
●R&S®FSW-B500 (1313.4296.02)
●R&S®FSW-B512 (1313.4296.04) / R&S®FSW-U512 (1321.6320.04) / R&S®FSW-U512A
(1321.6320.14)
●R&S®FSW-B1200 (1331.6400.04)
●R&S®FSW-B2001 (1331.6916.04) / R&S®FSW-U2001 (1331.7070.02)
●R&S®FSW-B2000 (1325.4750.02) / R&S®FSW-U2000 (1325.5405.xx)
●R&S®FSW-B5000 (1331.6997.xx) / R&S®FSW-U5000 (1331.7629.xx)
●R&S®FSW-B71, analog baseband interface (1313.1651.XX, 1313.6547.02)
●R&S®FSW-B2071, oscilloscope baseband input (1331.8302.xx)
●R&S®FSW-B90G, frequency extension 90 GHz (1331.7693.02)
●R&S®FSW-K544 frequency response correction (1338.2716.02)
●R&S®FSW-U85, improved sensitivity (1338.3764.85)
© 2018 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Fax: [phone]
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1173.9411.02 | Version 36 | R&S®FSW
The following abbreviations are used throughout this manual: R&S®FSW is abbreviated as R&S FSW. R&S MultiView is abbreviated
as MultiView. Products of the R&S®SMW family, e.g. R&S®SMW200A, are abbreviated as R&S SMW.

1171.1307.42 - 05
1
Safety Instructions
Instrucciones de seguridad
Sicherheitshinweise
Consignes de sécurité
Risk of injury and instrument damage
The instrument must be used in an appropriate manner to prevent
personal injury or instrument damage.
●Do not open the instrument casing.
●Read and observe the "Basic Safety Instructions" delivered as
printed brochure with the instrument.
●Read and observe the safety instructions in the following sections.
Note that the data sheet may specify additional operating conditions.
●Keep the "Basic Safety Instructions" and the product documentation
in a safe place and pass them on to the subsequent users.
Riesgo de lesiones y daños en el instrumento
El instrumento se debe usar de manera adecuada para prevenir
descargas eléctricas, incendios, lesiones o daños materiales.
●No abrir la carcasa del instrumento.
●Lea y cumpla las "Instrucciones de seguridad elementales"
suministradas con el instrumento como folleto impreso.
●Lea y cumpla las instrucciones de seguridad incluidas en las
siguientes secciones. Se debe tener en cuenta que las
especificaciones técnicas pueden contener condiciones adicionales
para su uso.
●Guarde bien las instrucciones de seguridad elementales, así como
la documentación del producto, y entréguelas a usuarios
posteriores.

1171.1307.42 - 05
2
Gefahr von Verletzungen und Schäden am Gerät
Betreiben Sie das Gerät immer ordnungsgemäß, um elektrischen
Schlag, Brand, Verletzungen von Personen oder Geräteschäden zu
verhindern.
●Öffnen Sie das Gerätegehäuse nicht.
●Lesen und beachten Sie die "Grundlegenden Sicherheitshinweise",
die als gedruckte Broschüre dem Gerät beiliegen.
●Lesen und beachten Sie die Sicherheitshinweise in den folgenden
Abschnitten; möglicherweise enthält das Datenblatt weitere
Hinweise zu speziellen Betriebsbedingungen.
●Bewahren Sie die "Grundlegenden Sicherheitshinweise" und die
Produktdokumentation gut auf und geben Sie diese an weitere
Benutzer des Produkts weiter.
Risque de blessures et d'endommagement de l'appareil
L'appareil doit être utilisé conformément aux prescriptions afin d'éviter
les électrocutions, incendies, dommages corporels et matériels.
●N'ouvrez pas le boîtier de l'appareil.
●Lisez et respectez les "consignes de sécurité fondamentales"
fournies avec l’appareil sous forme de brochure imprimée.
●Lisez et respectez les instructions de sécurité dans les sections
suivantes. Il ne faut pas oublier que la fiche technique peut indiquer
des conditions d’exploitation supplémentaires.
●Gardez les consignes de sécurité fondamentales et la
documentation produit dans un lieu sûr et transmettez ces
documents aux autres utilisateurs.

1171.0200.22-06.00
Customer Support
Technical support – where and when you need it
For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support
Centers. A team of highly qualified engineers provides telephone support and will work with you to find a
solution to your query on any aspect of the operation, programming or applications of Rohde & Schwarz
equipment.
Up-to-date information and upgrades
To keep your instrument up-to-date and to be informed about new application notes related to your
instrument, please send an e-mail to the Customer Support Center stating your instrument and your wish.
We will take care that you will get the right information.
Europe, Africa, Middle East Phone [phone]
[email protected]
North America Phone 1-888-TEST-RSA(1-888-837-8772)
[email protected]
Latin America Phone [phone]
[email protected]
Asia/Pacific Phone [phone]
[email protected]
China Phone [phone] /
[phone]
[email protected]

Contents
R&S®FSW
3User Manual 1173.9411.02 ─ 36
Contents
1 Preface.................................................................................................. 15
1.1 For Your Safety............................................................................................................15
1.2 Documentation Overview........................................................................................... 15
1.2.1 Getting Started Manual................................................................................................. 15
1.2.2 User Manuals and Help.................................................................................................16
1.2.3 Service Manual............................................................................................................. 16
1.2.4 Instrument Security Procedures....................................................................................16
1.2.5 Basic Safety Instructions...............................................................................................16
1.2.6 Data Sheets and Brochures.......................................................................................... 16
1.2.7 Release Notes and Open Source Acknowledgment (OSA).......................................... 17
1.2.8 Application Notes, Application Cards, White Papers, etc..............................................17
1.3 About this Manual....................................................................................................... 17
1.4 Conventions Used in the Documentation.................................................................18
1.4.1 Typographical Conventions...........................................................................................18
1.4.2 Conventions for Procedure Descriptions.......................................................................18
1.4.3 Notes on Screenshots...................................................................................................19
2 Documentation Overview....................................................................20
2.1 Getting Started Manual...............................................................................................20
2.2 User Manuals and Help...............................................................................................20
2.3 Service Manual............................................................................................................ 20
2.4 Instrument Security Procedures................................................................................21
2.5 Basic Safety Instructions........................................................................................... 21
2.6 Data Sheets and Brochures....................................................................................... 21
2.7 Release Notes and Open Source Acknowledgment (OSA).....................................21
2.8 Application Notes, Application Cards, White Papers, etc.......................................21
3 Welcome to the R&S FSW................................................................... 22
4 Getting Started..................................................................................... 23
4.1 Preparing for Use........................................................................................................ 23
4.1.1 Putting into Operation................................................................................................... 23
4.1.2 Windows Operating System..........................................................................................29

Contents
R&S®FSW
4User Manual 1173.9411.02 ─ 36
4.1.3 Connecting USB Devices..............................................................................................33
4.1.4 Connecting an External Monitor....................................................................................35
4.1.5 Setting Up a Network (LAN) Connection.......................................................................36
4.1.6 Configuring the Initial Instrument Settings.................................................................... 41
4.1.7 Protecting Data Using the Secure User Mode.............................................................. 42
4.2 Instrument Tour........................................................................................................... 44
4.2.1 Front Panel View...........................................................................................................44
4.2.2 Rear Panel View............................................................................................................55
4.3 Trying Out the Instrument.......................................................................................... 61
4.3.1 Measuring a Basic Signal..............................................................................................62
4.3.2 Displaying a Spectrogram............................................................................................. 64
4.3.3 Activating Additional Measurement Channels...............................................................65
4.3.4 Performing Sequential Measurements..........................................................................68
4.3.5 Setting and Moving a Marker........................................................................................ 69
4.3.6 Displaying a Marker Peak List.......................................................................................70
4.3.7 Zooming into the Display...............................................................................................71
4.3.8 Saving Settings............................................................................................................. 75
4.3.9 Printing and Saving Results.......................................................................................... 76
4.4 Operating the Instrument........................................................................................... 77
4.4.1 Understanding the Display Information......................................................................... 78
4.4.2 Accessing the Functionality...........................................................................................88
4.4.3 Changing the Focus...................................................................................................... 92
4.4.4 Entering Data................................................................................................................ 92
4.4.5 Touchscreen Gestures.................................................................................................. 94
4.4.6 Displaying Results.........................................................................................................96
4.4.7 Getting Help................................................................................................................ 103
4.4.8 Remote Control........................................................................................................... 105
5 Applications, Measurement Channels, and Operating Modes...... 108
5.1 Available Applications.............................................................................................. 109
5.2 R&S MultiView........................................................................................................... 116
5.3 Selecting the Operating Mode and Applications....................................................116
5.4 Running a Sequence of Measurements.................................................................. 118
5.4.1 The Sequencer Concept..............................................................................................119

Contents
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5User Manual 1173.9411.02 ─ 36
5.4.2 Sequencer Settings.....................................................................................................121
5.4.3 How to Set Up the Sequencer.....................................................................................122
6 Measurements and Results...............................................................123
6.1 Basic Measurements................................................................................................ 124
6.1.1 Basic Measurement Types..........................................................................................124
6.1.2 How to Perform a Basic Sweep Measurement........................................................... 125
6.1.3 Measurement Examples - Measuring a Sinusoidal Signal..........................................126
6.1.4 Measurement Example – Measuring Levels at Low S/N Ratios................................. 129
6.1.5 Measurement Examples - Measuring Signal Spectra with Multiple Signals............... 132
6.1.6 Measurement Examples in Zero Span........................................................................139
6.2 Channel Power and Adjacent-Channel Power (ACLR) Measurement..................145
6.2.1 About Channel Power Measurements........................................................................ 146
6.2.2 Channel Power Results...............................................................................................146
6.2.3 Channel Power Basics................................................................................................ 148
6.2.4 Channel Power Configuration..................................................................................... 160
6.2.5 MSR ACLR Configuration........................................................................................... 170
6.2.6 How to Perform Channel Power Measurements.........................................................185
6.2.7 Measurement Examples............................................................................................. 190
6.2.8 Optimizing and Troubleshooting the Measurement.....................................................196
6.2.9 Reference: Predefined CP/ACLR Standards.............................................................. 197
6.2.10 Reference: Predefined ACLR User Standard XML Files............................................ 198
6.3 Carrier-to-Noise Measurements...............................................................................199
6.3.1 About the Measurement..............................................................................................199
6.3.2 Carrier-to-Noise Results..............................................................................................200
6.3.3 Carrier-to-Noise Configuration.................................................................................... 201
6.3.4 How to Determine the Carrier-to-Noise Ratio............................................................. 202
6.4 Occupied Bandwidth Measurement (OBW)............................................................ 203
6.4.1 About the Measurement..............................................................................................203
6.4.2 OBW Results...............................................................................................................205
6.4.3 OBW Configuration..................................................................................................... 206
6.4.4 How to Determine the Occupied Bandwidth............................................................... 208
6.4.5 Measurement Example............................................................................................... 209
6.5 Noise Power Ratio (NPR) Measurement................................................................. 210

Contents
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6User Manual 1173.9411.02 ─ 36
6.5.1 About Noise Power Ratio (NPR) Measurements........................................................ 210
6.5.2 NPR Results................................................................................................................210
6.5.3 NPR Configuration...................................................................................................... 213
6.5.4 How to Perform NPR Measurements..........................................................................215
6.5.5 Measurement Example............................................................................................... 215
6.6 Spectrum Emission Mask (SEM) Measurement..................................................... 217
6.6.1 About the Measurement..............................................................................................217
6.6.2 Typical Applications.....................................................................................................218
6.6.3 SEM Results............................................................................................................... 218
6.6.4 SEM Basics.................................................................................................................221
6.6.5 SEM Configuration...................................................................................................... 232
6.6.6 How to Perform a Spectrum Emission Mask Measurement........................................248
6.6.7 Measurement Example: Multi-SEM Measurement......................................................253
6.6.8 Reference: SEM File Descriptions.............................................................................. 255
6.7 Spurious Emissions Measurement......................................................................... 262
6.7.1 About the Measurement..............................................................................................262
6.7.2 Spurious Emissions Measurement Results.................................................................263
6.7.3 Spurious Emissions Basics......................................................................................... 264
6.7.4 Spurious Emissions Measurement Configuration....................................................... 266
6.7.5 How to Perform a Spurious Emissions Measurement.................................................272
6.7.6 Reference: ASCII Export File Format (Spurious)........................................................ 273
6.8 Statistical Measurements (APD, CCDF).................................................................. 275
6.8.1 About the Measurements............................................................................................ 275
6.8.2 Typical Applications.....................................................................................................276
6.8.3 APD and CCDF Results..............................................................................................276
6.8.4 APD and CCDF Basics - Gated Triggering................................................................. 279
6.8.5 APD and CCDF Configuration.................................................................................... 280
6.8.6 How to Perform an APD or CCDF Measurement........................................................286
6.8.7 Examples.................................................................................................................... 287
6.8.8 Optimizing and Troubleshooting the Measurement.....................................................290
6.9 Time Domain Power Measurement..........................................................................290
6.9.1 About the Measurement..............................................................................................290
6.9.2 Time Domain Power Results.......................................................................................290

Contents
R&S®FSW
7User Manual 1173.9411.02 ─ 36
6.9.3 Time Domain Power Basics - Range Definition Using Limit Lines.............................. 291
6.9.4 Time Domain Power Configuration............................................................................. 292
6.9.5 How to Measure Powers in the Time Domain............................................................. 293
6.9.6 Measurement Example............................................................................................... 293
6.10 Harmonic Distortion Measurement......................................................................... 295
6.10.1 About the Measurement..............................................................................................295
6.10.2 Harmonic Distortion Basics......................................................................................... 295
6.10.3 Harmonic Distortion Results........................................................................................298
6.10.4 Harmonic Distortion Configuration.............................................................................. 299
6.10.5 How to Determine the Harmonic Distortion.................................................................300
6.11 Third Order Intercept (TOI) Measurement...............................................................300
6.11.1 About the TOI Measurement.......................................................................................301
6.11.2 TOI Basics...................................................................................................................301
6.11.3 TOI Results................................................................................................................. 305
6.11.4 TOI Configuration........................................................................................................306
6.11.5 How to Determine the Third Order Intercept............................................................... 307
6.11.6 Measurement Example – Measuring the R&S FSW's Intrinsic Intermodulation......... 307
6.12 AM Modulation Depth Measurement....................................................................... 310
6.12.1 About the Measurement..............................................................................................310
6.12.2 AM Modulation Depth Results.....................................................................................310
6.12.3 AM Modulation Depth Configuration............................................................................311
6.12.4 Optimizing and Troubleshooting the Measurement.....................................................312
6.12.5 How to Determine the AM Modulation Depth..............................................................313
6.13 Electromagnetic Interference (EMI) Measurement.................................................313
6.13.1 About the EMI Measurement...................................................................................... 314
6.13.2 EMI Measurement Results..........................................................................................314
6.13.3 EMI Measurement Basics........................................................................................... 316
6.13.4 EMI Measurement Configuration................................................................................ 324
6.13.5 EMI Result Analysis.................................................................................................... 331
6.13.6 How to Perform EMI Measurements........................................................................... 332
6.13.7 Measurement Example: Measuring Radio Frequency Interference............................334
6.13.8 Optimizing and Troubleshooting EMI Measurements................................................. 336
7 Common Measurement Settings...................................................... 337

Contents
R&S®FSW
8User Manual 1173.9411.02 ─ 36
7.1 Configuration Overview............................................................................................337
7.2 Data Input and Output.............................................................................................. 339
7.2.1 Receiving Data Input and Providing Data Output....................................................... 339
7.2.2 Input Source Settings..................................................................................................347
7.2.3 Power Sensors............................................................................................................354
7.2.4 Optional External Generator Control...........................................................................362
7.2.5 Optional External Mixers............................................................................................. 389
7.2.6 Output Settings........................................................................................................... 416
7.2.7 Trigger Input/Output Settings...................................................................................... 418
7.2.8 How to Output a Trigger Signal...................................................................................420
7.3 Frequency and Span Configuration........................................................................ 421
7.3.1 Impact of the Frequency and Span Settings............................................................... 421
7.3.2 Frequency and Span Settings.....................................................................................423
7.3.3 Keeping the Center Frequency Stable - Signal Tracking............................................ 427
7.3.4 How To Define the Frequency Range......................................................................... 428
7.3.5 How to Move the Center Frequency through the Frequency Range...........................428
7.4 Amplitude and Vertical Axis Configuration............................................................ 428
7.4.1 Impact of the Vertical Axis Settings.............................................................................429
7.4.2 Amplitude Settings...................................................................................................... 431
7.4.3 Scaling the Y-Axis....................................................................................................... 436
7.4.4 How to Optimize the Amplitude Display...................................................................... 438
7.5 Bandwidth, Filter and Sweep Configuration...........................................................439
7.5.1 Impact of the Bandwidth, Filter and Sweep Settings...................................................439
7.5.2 Bandwidth, Filter and Sweep Settings........................................................................ 445
7.5.3 Reference: List of Available RRC and Channel Filters................................................453
7.6 Trigger and Gate Configuration............................................................................... 455
7.6.1 Triggering.................................................................................................................... 456
7.6.2 Gating..........................................................................................................................466
7.7 Adjusting Settings Automatically............................................................................477
8 Common Analysis and Display Functions...................................... 480
8.1 Result Display Configuration...................................................................................480
8.1.1 Basic Evaluation Methods...........................................................................................480
8.1.2 Laying out the Result Display with the SmartGrid.......................................................482

Contents
R&S®FSW
9User Manual 1173.9411.02 ─ 36
8.2 Zoomed Displays...................................................................................................... 487
8.2.1 Single Zoom Versus Multiple Zoom............................................................................ 487
8.2.2 Zoom Functions.......................................................................................................... 489
8.2.3 How to Zoom Into a Diagram...................................................................................... 490
8.3 Marker Usage.............................................................................................................492
8.3.1 Basics on Markers.......................................................................................................493
8.3.2 Marker Settings........................................................................................................... 496
8.3.3 Marker Search Settings and Positioning Functions.................................................... 501
8.3.4 Marker (Measurement) Functions............................................................................... 509
8.3.5 How to Work With Markers..........................................................................................529
8.3.6 Measurement Example: Measuring Harmonics Using Marker Functions................... 532
8.4 Display and Limit Lines............................................................................................ 533
8.4.1 Display Lines...............................................................................................................534
8.4.2 Limit Lines................................................................................................................... 536
8.5 Trace Configuration.................................................................................................. 552
8.5.1 Standard Traces..........................................................................................................552
8.5.2 Spectrograms..............................................................................................................564
8.5.3 Trace Math.................................................................................................................. 582
8.6 Importing and Exporting Measurement Results for Evaluation........................... 584
8.6.1 Displaying a Reference Trace - Importing Trace Data................................................ 584
8.6.2 Trace/Data Ex/Import.................................................................................................. 586
8.6.3 How to Import Traces..................................................................................................589
8.6.4 How to Export Trace Data and Numerical Results......................................................590
8.6.5 How to Export a Peak List...........................................................................................591
8.6.6 Reference: ASCII File Export Format..........................................................................591
9 Optimizing Measurements................................................................ 595
9.1 Minimizing the Measurement Duration................................................................... 595
9.2 Improving Averaging Results.................................................................................. 595
10 Data Management.............................................................................. 597
10.1 Restoring the Default Instrument Configuration (Preset)..................................... 597
10.2 Protecting Data Using the Secure User Mode........................................................598
10.3 Storing and Recalling Instrument Settings and Measurement Data.................... 600
10.3.1 Quick Save/Quick Recall.............................................................................................601

Contents
R&S®FSW
10User Manual 1173.9411.02 ─ 36
10.3.2 Configurable Storage and Recall................................................................................ 603
10.3.3 How to Save and Load Instrument Settings................................................................609
10.4 Import/Export Functions...........................................................................................611
10.5 Creating Screenshots of Current Measurement Results and Settings................615
10.5.1 Print and Screenshot Settings.....................................................................................615
10.5.2 How to Store or Print Screenshots of the Display....................................................... 625
10.5.3 Example for Storing Multiple Measurement Results to a PDF File............................. 628
11 General Instrument Setup................................................................. 631
11.1 Alignment...................................................................................................................631
11.1.1 Basics on Alignment....................................................................................................631
11.1.2 Alignment Settings...................................................................................................... 633
11.1.3 How to Perform a Self-Test......................................................................................... 635
11.1.4 How to Align the Instrument........................................................................................ 636
11.1.5 How to Align the Touchscreen.....................................................................................636
11.2 Display Settings........................................................................................................ 637
11.2.1 Display Settings.......................................................................................................... 637
11.2.2 External Monitor Settings............................................................................................ 646
11.2.3 How to Configure the Colors for Display and Printing.................................................647
11.2.4 How to Work with the Soft Front Panels......................................................................648
11.3 Transducers...............................................................................................................649
11.3.1 Basics on Transducer Factors.....................................................................................649
11.3.2 Transducer Settings.................................................................................................... 651
11.3.3 Reference: Transducer Factor File Format................................................................. 657
11.3.4 How to Configure the Transducer............................................................................... 658
11.4 Frequency Response Correction (R&S FSW-K544)............................................... 661
11.4.1 Basics on Frequency Response Correction................................................................662
11.4.2 User-defined Frequency Response Correction Settings.............................................664
11.5 Reference Frequency Settings................................................................................ 672
11.6 System Configuration Settings................................................................................676
11.6.1 Hardware Information..................................................................................................676
11.6.2 Information on Versions and Options.......................................................................... 677
11.6.3 System Messages.......................................................................................................678
11.6.4 Firmware Updates.......................................................................................................679

Contents
R&S®FSW
11User Manual 1173.9411.02 ─ 36
11.6.5 General Configuration Settings................................................................................... 681
11.7 Service Functions..................................................................................................... 683
11.7.1 R&S Support Information............................................................................................ 683
11.7.2 Self-test Settings and Results..................................................................................... 684
11.7.3 Calibration Signal Display........................................................................................... 685
11.7.4 Service Functions........................................................................................................687
11.7.5 Hardware Diagnostics................................................................................................. 689
11.8 Synchronizing Measurement Channel Configuration........................................... 690
11.8.1 General Parameter Coupling...................................................................................... 691
11.8.2 User-Defined Parameter Coupling.............................................................................. 693
11.8.3 How to Synchronize Parameters.................................................................................697
11.8.4 Example for a User-Defined Parameter Coupling.......................................................698
12 Network and Remote Operation....................................................... 701
12.1 Remote Control Basics.............................................................................................701
12.1.1 Remote Control Interfaces and Protocols................................................................... 701
12.1.2 SCPI (Standard Commands for Programmable Instruments).....................................710
12.1.3 VISA Libraries............................................................................................................. 710
12.1.4 Messages.................................................................................................................... 711
12.1.5 SCPI Command Structure...........................................................................................712
12.1.6 Command Sequence and Synchronization.................................................................720
12.1.7 Status Reporting System............................................................................................ 722
12.1.8 General Programming Recommendations..................................................................739
12.2 GPIB Languages....................................................................................................... 740
12.3 The IECWIN Tool........................................................................................................742
12.4 Network and Remote Control Settings................................................................... 743
12.4.1 General Network Settings........................................................................................... 744
12.4.2 GPIB Settings..............................................................................................................746
12.4.3 Compatibility Settings..................................................................................................748
12.4.4 LXI Settings.................................................................................................................751
12.4.5 Remote Errors.............................................................................................................753
12.4.6 Returning to Manual Mode ("Local")........................................................................... 755
12.5 How to Set Up a Network and Remote Control...................................................... 756
12.5.1 How to Configure a Network....................................................................................... 756

Contents
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12User Manual 1173.9411.02 ─ 36
12.5.2 How to Operate the Instrument Without a Network.....................................................763
12.5.3 How to Log on to the Network.....................................................................................763
12.5.4 How to Share Directories (only with Microsoft Networks)........................................... 765
12.5.5 How to Control the R&S FSW via the Web Browser Interface....................................766
12.5.6 How to Deactivate the Web Browser Interface............................................................767
12.5.7 How to Set Up Remote Desktop................................................................................. 768
12.5.8 How to Start a Remote Control Session from a PC.................................................... 774
12.5.9 How to Return to Manual Operation............................................................................775
13 Remote Commands........................................................................... 776
13.1 Conventions Used in SCPI Command Descriptions..............................................776
13.2 Common Suffixes......................................................................................................777
13.3 Common Commands................................................................................................ 777
13.4 Selecting the Operating Mode and Application..................................................... 782
13.4.1 Selecting the Mode and Applications.......................................................................... 782
13.4.2 Performing a Sequence of Measurements..................................................................788
13.4.3 Programming Example: Performing a Sequence of Measurements........................... 791
13.5 Configuring and Performing Measurements.......................................................... 793
13.5.1 Performing Measurements..........................................................................................793
13.5.2 Configuring Power Measurements..............................................................................797
13.5.3 Measuring the Channel Power and ACLR.................................................................. 802
13.5.4 Measuring the Carrier-to-Noise Ratio......................................................................... 839
13.5.5 Measuring the Occupied Bandwidth........................................................................... 840
13.5.6 Remote Commands for Noise Power Ratio (NPR) Measurements............................ 842
13.5.7 Measuring the Spectrum Emission Mask....................................................................847
13.5.8 Measuring Spurious Emissions...................................................................................883
13.5.9 Analyzing Statistics (APD, CCDF).............................................................................. 897
13.5.10 Measuring the Time Domain Power............................................................................907
13.5.11 Measuring the Harmonic Distortion.............................................................................917
13.5.12 Measuring the Third Order Intercept Point..................................................................921
13.5.13 Measuring the AM Modulation Depth..........................................................................923
13.5.14 Remote Commands for EMI Measurements...............................................................925
13.5.15 List Evaluations........................................................................................................... 935
13.5.16 Measuring the Pulse Power........................................................................................ 940

Contents
R&S®FSW
13User Manual 1173.9411.02 ─ 36
13.6 Configuring the Result Display................................................................................945
13.6.1 General Window Commands...................................................................................... 945
13.6.2 Working with Windows in the Display..........................................................................946
13.6.3 Examples: Configuring the Result Display.................................................................. 952
13.7 Setting Basic Measurement Parameters.................................................................955
13.7.1 Defining the Frequency and Span...............................................................................955
13.7.2 Configuring Bandwidth and Sweep Settings............................................................... 961
13.7.3 Configuring the Vertical Axis (Amplitude, Scaling)...................................................... 970
13.7.4 Configuring Triggered and Gated Measurements.......................................................979
13.7.5 Adjusting Settings Automatically................................................................................. 993
13.7.6 Configuring the Data Input and Output....................................................................... 996
13.8 Analyzing Measurements (Basics)........................................................................ 1047
13.8.1 Zooming into the Display...........................................................................................1047
13.8.2 Configuring the Trace Display and Retrieving Trace Data........................................ 1049
13.8.3 Working with Markers................................................................................................1074
13.8.4 Configuring Display and Limit Lines.......................................................................... 1133
13.9 Managing Settings and Results............................................................................. 1151
13.9.1 General Data Storage and Loading Commands....................................................... 1152
13.9.2 Selecting the Items to Store...................................................................................... 1158
13.9.3 Storing and Loading Instrument Settings.................................................................. 1161
13.9.4 Storing or Printing Screenshots.................................................................................1166
13.9.5 Storing Measurement Results................................................................................... 1178
13.9.6 Examples: Managing Data........................................................................................ 1181
13.10 Configuring the R&S FSW...................................................................................... 1184
13.10.1 Configuring the Reference Frequency.......................................................................1184
13.10.2 Calibration and Checks............................................................................................. 1187
13.10.3 Working with Transducers......................................................................................... 1191
13.10.4 Compensating for Frequency Response Using Touchstone files (R&S FSW-K544).1196
13.10.5 Customizing the Screen Layout................................................................................ 1209
13.10.6 Remote Commands for Language Settings.............................................................. 1215
13.10.7 Configuring the Network and Remote Control.......................................................... 1216
13.10.8 Checking the System Configuration..........................................................................1220
13.10.9 Using Service Functions........................................................................................... 1227

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14User Manual 1173.9411.02 ─ 36
13.10.10 Remote Commands for Synchronizing Parameters..................................................1230
13.11 Using the Status Register...................................................................................... 1243
13.11.1 General Status Register Commands........................................................................ 1243
13.11.2 Reading Out the CONDition Part.............................................................................. 1244
13.11.3 Reading Out the EVENt Part.....................................................................................1244
13.11.4 Controlling the ENABle Part......................................................................................1245
13.11.5 Controlling the Negative Transition Part....................................................................1246
13.11.6 Controlling the Positive Transition Part..................................................................... 1246
13.12 Commands for Remote Instrument Operation..................................................... 1247
13.13 Emulating Other Instruments' Commands........................................................... 1248
13.13.1 Setting up Instrument Emulation............................................................................... 1248
13.13.2 Reference: GPIB Commands of Emulated HP Models.............................................1252
13.13.3 Reference: Command Set of Emulated PSA Models................................................1280
13.13.4 Reference: Command Set of Emulated PXA Models................................................1284
13.14 Deprecated Commands.......................................................................................... 1286
13.15 Programming Examples......................................................................................... 1289
13.15.1 Programming Example: Performing a Basic Frequency Sweep............................... 1290
13.15.2 Service Request........................................................................................................1293
14 Maintenance..................................................................................... 1302
14.1 Cleaning................................................................................................................... 1302
15 Troubleshooting...............................................................................1304
15.1 Error Information.....................................................................................................1304
15.2 Error Messages in Remote Control Mode.............................................................1306
15.3 Troubleshooting Remote Operation......................................................................1307
15.4 Miscellaneous Troubleshooting Hints.................................................................. 1308
15.5 Collecting Information for Technical Support...................................................... 1310
List of remote commands (base unit)............................................ 1312
Index..................................................................................................1335

Preface
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15User Manual 1173.9411.02 ─ 36
1 Preface
This chapter provides safety-related information, an overview of the user documenta-
tion and the conventions used in the documentation.
1.1 For Your Safety
The R&S FSW is designated for use in industrial, administrative, and laboratory envi-
ronments. Use the R&S FSW only for its designated purpose. Observe the safety and
usage instructions documented in the user manual, as well as operating conditions and
performance limits stated in the data sheet.
The product documentation helps you use the R&S FSW safely and efficiently. Keep
the product documentation in a safe place and pass it on to subsequent users.
Safety information is part of the product documentation. It warns you about potential
dangers and gives instructions how to prevent personal injury or damage caused by
dangerous situations. Safety information is provided as follows:
●In the "Basic Safety Instructions", safety issues are grouped according to subjects.
For example, one subject is electrical safety. The "Basic Safety Instructions" are
delivered with the R&S FSW in different languages in print.
●Throughout the documentation, safety instructions are provided when you need to
take care during setup or operation. Always read the safety instructions carefully.
Make sure to comply fully with them. Do not take risks and do not underestimate
the potential danger of small details such as a damaged power cable.
1.2 Documentation Overview
This section provides an overview of the R&S FSW user documentation. Unless speci-
fied otherwise, you find the documents on the R&S FSW product page at:
www.rohde-schwarz.com/manual/FSW
1.2.1 Getting Started Manual
Introduces the R&S FSW and describes how to set up and start working with the prod-
uct. Includes basic operations, typical measurement examples, and general informa-
tion, e.g. safety instructions, etc.
A printed version is delivered with the instrument. A PDF version is available for down-
load on the Internet.
Documentation Overview

Preface
R&S®FSW
16User Manual 1173.9411.02 ─ 36
1.2.2 User Manuals and Help
Separate user manuals are provided for the base unit and the firmware applications:
●Base unit manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control com-
mands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
●Firmware application manual
Contains the description of the specific functions of a firmware application, includ-
ing remote control commands. Basic information on operating the R&S FSW is not
included.
The contents of the user manuals are available as help in the R&S FSW. The help
offers quick, context-sensitive access to the complete information for the base unit and
the firmware applications.
All user manuals are also available for download or for immediate display on the Inter-
net.
1.2.3 Service Manual
Describes the performance test for checking the rated specifications, module replace-
ment and repair, firmware update, troubleshooting and fault elimination, and contains
mechanical drawings and spare part lists.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS):
https://gloris.rohde-schwarz.com
1.2.4 Instrument Security Procedures
Deals with security issues when working with the R&S FSW in secure areas. It is avail-
able for download on the Internet.
1.2.5 Basic Safety Instructions
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
1.2.6 Data Sheets and Brochures
The data sheet contains the technical specifications of the R&S FSW. It also lists the
firmware applications and their order numbers, and optional accessories.
The brochure provides an overview of the instrument and deals with the specific char-
acteristics.
Documentation Overview

Preface
R&S®FSW
17User Manual 1173.9411.02 ─ 36
See www.rohde-schwarz.com/brochure-datasheet/FSW
1.2.7 Release Notes and Open Source Acknowledgment (OSA)
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation.
The open source acknowledgment document provides verbatim license texts of the
used open source software.
See www.rohde-schwarz.com/firmware/FSW
1.2.8 Application Notes, Application Cards, White Papers, etc.
These documents deal with special applications or background information on particu-
lar topics.
See www.rohde-schwarz.com/application/FSW
1.3 About this Manual
This User Manual describes general instrument functions and settings common to all
applications and operating modes in the R&S FSW. Furthermore, it provides all the
information specific to RF measurements in the Spectrum application. All other
operating modes and applications are described in the specific application manuals.
The main focus in this manual is on the measurement results and the tasks required to
obtain them. The following topics are included:
●Welcome to the R&S FSW
Introduction to and getting familiar with the instrument
●Operating Modes and Applications
The concept of using multiple operating modes
●Measurements
Descriptions of the individual measurements in the Spectrum application, including
result types and configuration settings.
●Common Measurement Settings
Description of the measurement settings common to all measurement types with
their corresponding remote control commands
●Common Measurement Analysis and Display Functions
Description of the settings and functions provided to analyze results independently
of the measurement type with their corresponding remote control commands
●Data Management
Description of general functions to handle data files (configuration and result data,
not I/Q data)
●General Instrument Setup
About this Manual