R&S FSWP-B1 User manual

R&S®FSWP-B1
Multi-Standard Radio Analyzer
User Manual
1177586202
Version 09
(;ÛÈÌ2)

This manual describes the following R&S®FSWP models with firmware version 3.00 or higher:
●R&S®FSWP8 (1322.8003K08)
●R&S®FSWP8 (1322.8003K09)
●R&S®FSWP26 (1322.8003K26)
●R&S®FSWP26 (1322.8003K27)
●R&S®FSWP50 (1322.8003K50)
●R&S®FSWP50 (1322.8003K51)
The MSRA mode is an integral part of the following options:
●R&S FSWP-B1 (1322.9997.08)
●R&S FSWP-B1 (1322.9997.26)
●R&S FSWP-B1 (1322.9997.50)
© 2022 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: [phone] - 0
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.
1177.5862.02 | Version 09 | R&S®FSWP-B1
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®FSWP is indicated as
R&S FSWP.

Contents
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Contents
1 Preface.................................................................................................... 7
1.1 About this manual.........................................................................................................7
1.2 Documentation overview..............................................................................................8
1.2.1 Getting started manual....................................................................................................8
1.2.2 User manuals and help................................................................................................... 8
1.2.3 Service manual............................................................................................................... 8
1.2.4 Instrument security procedures.......................................................................................8
1.2.5 Printed safety instructions............................................................................................... 9
1.2.6 Data sheets and brochures............................................................................................. 9
1.2.7 Release notes and open source acknowledgment (OSA).............................................. 9
1.2.8 Application notes, application cards, white papers, etc...................................................9
1.3 Conventions used in the documentation....................................................................9
1.3.1 Typographical conventions..............................................................................................9
1.3.2 Conventions for procedure descriptions........................................................................10
1.3.3 Notes on screenshots................................................................................................... 10
2 Welcome to the MSRA operating mode............................................. 11
2.1 Starting the MSRA operating mode...........................................................................11
2.2 Understanding the display information.................................................................... 12
2.2.1 MSRA view....................................................................................................................14
2.2.2 MSRA primary...............................................................................................................15
2.2.3 MSRA secondary applications...................................................................................... 16
3 Measurements and result displays.................................................... 18
4 Applications and operating modes.................................................... 20
4.1 Available secondary applications..............................................................................21
4.2 Selecting the operating mode and secondary applications................................... 22
4.3 Using the sequencer in MSRA mode........................................................................ 23
5 MSRA basics........................................................................................ 25
5.1 Configuration...............................................................................................................25
5.2 Data acquisition.......................................................................................................... 26
5.3 Multi-standard analysis.............................................................................................. 27

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5.4 Restrictions for secondary applications...................................................................29
5.5 Measurements in the time and frequency domain...................................................29
6 MSRA configuration.............................................................................31
6.1 Configuration overview.............................................................................................. 32
6.2 Input source settings..................................................................................................34
6.2.1 Radio frequency input................................................................................................... 34
6.3 Amplitude.....................................................................................................................37
6.3.1 Amplitude settings.........................................................................................................37
6.3.2 Scaling the y-axis.......................................................................................................... 40
6.4 Frequency settings..................................................................................................... 42
6.5 Trigger settings........................................................................................................... 43
6.6 Data acquisition and bandwidth settings................................................................. 48
6.6.1 Data acquisition.............................................................................................................48
6.6.2 Sweep settings..............................................................................................................53
6.7 Output settings............................................................................................................55
6.8 Display configuration................................................................................................. 56
6.9 automatic settings...................................................................................................... 56
7 Analysis................................................................................................ 59
7.1 Configuring the analysis line..................................................................................... 59
8 How to perform measurements in MSRA mode................................61
9 Remote commands to perform measurements in MSRA mode...... 64
9.1 Introduction................................................................................................................. 64
9.1.1 Conventions used in descriptions................................................................................. 65
9.1.2 Long and short form...................................................................................................... 66
9.1.3 Numeric suffixes............................................................................................................66
9.1.4 Optional keywords.........................................................................................................66
9.1.5 Alternative keywords..................................................................................................... 67
9.1.6 SCPI parameters...........................................................................................................67
9.1.6.1 Numeric values............................................................................................................. 67
9.1.6.2 Boolean......................................................................................................................... 68
9.1.6.3 Character data.............................................................................................................. 69
9.1.6.4 Character strings...........................................................................................................69

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9.1.6.5 Block data..................................................................................................................... 69
9.2 Common suffixes........................................................................................................ 69
9.3 Activating MSRA measurements...............................................................................70
9.4 Configuring MSRA measurements............................................................................75
9.4.1 Configuring input/output and frontend settings............................................................. 75
9.4.1.1 RF input.........................................................................................................................75
9.4.1.2 Configuring the vertical axis (amplitude, scaling)..........................................................79
Amplitude settings.........................................................................................................80
Configuring the attenuation........................................................................................... 81
Configuring a preamplifier............................................................................................. 82
Scaling the Y-axis..........................................................................................................83
9.4.1.3 Frequency..................................................................................................................... 86
9.4.1.4 Configuring the outputs................................................................................................. 87
9.4.2 Triggering...................................................................................................................... 88
9.4.2.1 Configuring the triggering conditions.............................................................................88
9.4.2.2 Configuring the trigger output........................................................................................92
9.4.3 Configuring data acquisition..........................................................................................94
9.4.4 Adjusting settings automatically.................................................................................... 99
9.5 Capturing data and performing sweeps................................................................. 102
9.6 Retrieving results......................................................................................................108
9.7 Querying the status registers...................................................................................111
9.7.1 STATus:OPERation register........................................................................................ 112
9.7.2 Commands to query the STATus:OPERation register.................................................113
9.8 Analyzing MSRA measurements............................................................................. 114
9.9 Commands specific to MSRA secondary applications......................................... 114
Annex.................................................................................................. 118
A Reference: format description for I/Q data files.............................. 118
B Formats for returned values: ASCII format and binary format...... 120
C Sample rate and maximum usable I/Q bandwidth for RF input..... 121
C.1 Bandwidth extension options.................................................................................. 122
C.2 Relationship between sample rate, record length and usable I/Q bandwidth.....122
C.3 R&S FSWP without additional bandwidth extension options...............................122

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C.4 R&S FSWP with I/Q bandwidth extension option B80...........................................122
C.5 R&S FSWP with activated I/Q bandwidth extension option B320........................ 123
List of Remote Commands (MSRA)..................................................125
Index....................................................................................................128

Preface
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1 Preface
1.1 About this manual
This R&S FSWP MSRA User Manual provides all the information specific to the oper-
ating mode. All general instrument functions and settings common to all applications
and operating modes are described in the main R&S FSWP User Manual.
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 MSRA Operating Mode
Introduction to and getting familiar with the operating mode
●Typical Applications
Example measurement scenarios in which the operating mode is frequently used
●Measurements and Result Displays
Details on supported measurements and their result types
●MSRA Basics
Background information on basic terms and principles in the context of the MSRA
operating mode
●MSRA Configuration
A concise description of all functions and settings available to configure an MSRA
measurement with their corresponding remote control command
●How to Perform Measurements in MSRA Mode
The basic procedure to perform an MSRA measurement with step-by-step instruc-
tions
●Measurement Examples
Detailed measurement examples to guide you through typical measurement sce-
narios and allow you to try out the operating mode immediately
●Optimizing and Troubleshooting the Measurement
Hints and tips on how to handle errors and optimize the test setup
●Remote Commands for MSRA Measurements
Remote commands required to configure and perform MSRA measurements in a
remote environment, sorted by tasks
(Commands required to set up the environment or to perform common tasks on the
instrument are provided in the main R&S FSWP User Manual)
Programming examples demonstrate the use of many commands and can usually
be executed directly for test purposes
●Annex
Reference material
●List of remote commands
Alphabetical list of all remote commands described in the manual
●Index
About this manual

Preface
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8User Manual 1177.5862.02 ─ 09
1.2 Documentation overview
This section provides an overview of the R&S FSWP user documentation. Unless
specified otherwise, you find the documents at:
www.rohde-schwarz.com/manual/FSWP
1.2.1 Getting started manual
Introduces the R&S FSWP and describes how to set up and start working with the
product. Includes basic operations, typical measurement examples, and general infor-
mation, e.g. safety instructions, etc.
A printed version is delivered with the instrument. A PDF version is available for down-
load on the Internet.
1.2.2 User manuals and help
The user 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
commands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
The contents of the user manual are available as help in the R&S FSWP. The help
offers quick, context-sensitive access to the complete information for the instrument
and its firmware.
The user manual is 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 FSWP in secure areas. It is
available for download on the Internet.
Documentation overview

Preface
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9User Manual 1177.5862.02 ─ 09
1.2.5 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with
the product.
1.2.6 Data sheets and brochures
The data sheet contains the technical specifications of the R&S FSWP. 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.
See www.rohde-schwarz.com/brochure-datasheet/FSWP
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 software makes use of several valuable open source software packages. An open-
source acknowledgment document provides verbatim license texts of the used open
source software.
See www.rohde-schwarz.com/firmware/FSWP
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/FSWP
1.3 Conventions used in the documentation
1.3.1 Typographical conventions
The following text markers are used throughout this documentation:
Convention Description
"Graphical user interface ele-
ments"
All names of graphical user interface elements on the screen, such as
dialog boxes, menus, options, buttons, and softkeys are enclosed by
quotation marks.
[Keys] Key and knob names are enclosed by square brackets.
Conventions used in the documentation

Preface
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10User Manual 1177.5862.02 ─ 09
Convention Description
Filenames, commands,
program code
Filenames, commands, coding samples and screen output are distin-
guished by their font.
Input Input to be entered by the user is displayed in italics.
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
tion marks.
1.3.2 Conventions for procedure descriptions
When operating the instrument, several alternative methods may be available to per-
form the same task. In this case, the procedure using the touchscreen is described.
Any elements that can be activated by touching can also be clicked using an addition-
ally connected mouse. The alternative procedure using the keys on the instrument or
the on-screen keyboard is only described if it deviates from the standard operating pro-
cedures.
The term "select" may refer to any of the described methods, i.e. using a finger on the
touchscreen, a mouse pointer in the display, or a key on the instrument or on a key-
board.
1.3.3 Notes on screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as many as possible of the provided functions and
possible interdependencies between parameters. The shown values may not represent
realistic usage scenarios.
The screenshots usually show a fully equipped product, that is: with all options instal-
led. Thus, some functions shown in the screenshots may not be available in your par-
ticular product configuration.
Conventions used in the documentation

Welcome to the MSRA operating mode
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11User Manual 1177.5862.02 ─ 09
2 Welcome to the MSRA operating mode
The MSRA operating mode is part of the standard R&S FSWP firmware and adds
functionality to perform multi-standard radio analysis.
The R&S FSWP MSRA operating mode features:
●Analysis of the same I/Q data in more than one application
●Analysis of correlated effects due to multiple standards
●Configuration of data acquisition settings only required once for all applications
●Overview of all results in one screen in addition to large display of individual results
●Common analysis line (time marker) across all applications
●Performing measurements in the frequency and time domain (such as channel
power measurements) on I/Q data
Availability of the Multi-Standard Radio Analyzer
The Multi-Standard Radio Analyzer becomes available when you equip the
R&S FSWP with the optional Spectrum Analyzer hardware (R&S FSWP-B1).
Note that the MSRA does not support all applications (for example, the Phase Noise
application is not supported by MSRA).
This user manual contains a description of the functionality specific to the MSRA oper-
ating mode, including remote control operation.
All functions not discussed in this manual are the same as in Signal and Spectrum
Analyzer mode and are described in the R&S FSWP User Manual. The latest version
is available for download at the product homepage
http://www.rohde-schwarz.com/product/fswp.html.
Additional information
An application note discussing efficient measurements using the MSRA mode is avail-
able from the Rohde & Schwarz website:
1EF83: Using the R&S®FSW for Efficient Measurements on Multi- Standard Radio
Base Stations (MSRA)
2.1 Starting the MSRA operating mode
MSRA is a new operating mode on the R&S FSWP.
To activate the MSRA operating mode
1. Select the [MODE] key.
A dialog box opens that contains all operating modes and applications currently
available on your R&S FSWP.
Starting the MSRA operating mode

Welcome to the MSRA operating mode
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12User Manual 1177.5862.02 ─ 09
2. Select the "Multi Standard Radio Analyzer" tab.
3. Confirm the message informing you that you are changing operating modes.
The R&S FSWP closes all active measurement channels in the current operating
mode, then opens a new measurement channel for the MSRA operating mode.
Note: when you return to the Phase Noise Analyzer mode, the R&S FSWP opens
a Spectrum channel.
In addition to the "MSRA View", an "MSRA Primary" tab is displayed.
The Sequencer is automatically activated in continuous mode (see Chapter 4.3,
"Using the sequencer in MSRA mode", on page 23), starting an I/Q Analyzer data
acquisition with the default settings (but with a "Spectrum" result display). It can be
configured in the MSRA "Overview" dialog box, which is displayed when you select
the "Overview" softkey from any menu (see Chapter 6, "MSRA configuration",
on page 31).
Remote command:
INST:MODE MSR, see INSTrument:MODE on page 73
2.2 Understanding the display information
The following figure shows a screen display during MSRA operation. All different infor-
mation areas are labeled. They are explained in more detail in the following sections.
●The orange background of the screen behind the measurement channel tabs indi-
cates that you are in MSRA operating mode.
●The icon on the tab label indicates that the displayed trace (e.g. in an MSRA
secondary application) no longer matches the currently captured data. This may be
the case, for example, if a data acquisition was performed in another secondary
application. As soon as the result display is refreshed, the icon disappears.
●The icon indicates that an error or warning is available for that measurement
channel. This is particularly useful if the MSRA View tab is displayed.
An orange "IQ" indicates that the results displayed in the MSRA secondary applica-
tion(s) no longer match the data captured by the MSRA primary. The "IQ" disappears
after the results in the secondary application(s) are refreshed.
Understanding the display information

Welcome to the MSRA operating mode
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2 3 41 5 6
7
1 = MSRA View (overview of all active channels in MSRA mode)
2 = MSRA Primary (data acquisition channel with global configuration settings)
3 = Measurement channel tab for individual MSRA secondary application
4 = Channel bar with firmware and measurement settings for selected channel
5 = Window title bar with diagram-specific (trace) information and analysis interval
6 = Diagram area
7 = Diagram footer with diagram-specific information, depending on evaluation
The diagram area varies depending on the type of measurement channel, as described
in detail in the following topics.
Window title bar information
For each diagram, the header provides the following information:
12 6
7
5
3 4
8
Figure 2-1: Window title bar information in MSRA mode
1 = Window number
2 = Window type
3 = Trace color
4 = Trace number
5 = Detector
6 = Trace mode
7 = Analysis line indication
8 = Analysis interval
Understanding the display information

Welcome to the MSRA operating mode
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Diagram footer information
The information in the diagram footer (beneath the diagram) depends on the evalua-
tion:
●Center frequency
●Number of sweep points
●Range per division (x-axis)
●Span (Spectrum)
Status bar information
Global instrument settings, the instrument status and any irregularities are indicated in
the status bar beneath the diagram. Furthermore, the progress of the current operation
is displayed in the status bar.
If an error or warning is available for a measurement channel, the icon is displayed
next to the tab label in the channel bar.
2.2.1 MSRA view
The MSRA View is an overview of all active channels in MSRA mode, similar to the
MultiView tab in Signal and Spectrum Analyzer mode. At the top of the screen the
MSRA Primary is displayed, i.e. the application that captures data. Beneath the MSRA
Primary, all active secondary applications are displayed in individual windows. Each
secondary application has its own channel bar with the current settings as well as a
button in order to switch to that secondary application tab directly.
The MSRA View displays the following basic elements:
1 2
4
5
3
Understanding the display information

Welcome to the MSRA operating mode
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15User Manual 1177.5862.02 ─ 09
1 = Channel information bar for the MSRA Primary
2 = Secondary application data coverage for each active secondary application
3 = Result display for MSRA Primary (for entire capture buffer)
4 = Channel information bar for secondary application with button to switch to secondary application tab
5 = Result display for secondary application (for analysis interval)
2.2.2 MSRA primary
The MSRA primary is the only channel that captures data. It also controls global con-
figuration settings for all secondary applications. The MSRA primary channel itself is
implemented as an I/Q Analyzer secondary application. The MSRA primary measure-
ment channel cannot be deleted or replaced.
The following figure shows the screen elements specific to the MSRA primary.
1
2
3
4
1= Channel information bar for the MSRA Primary
2 = Data coverage for each active secondary application
3 = Result display for MSRA Primary (for entire capture buffer)
4 = Analysis line
Channel bar information
The channel bar shows the firmware and measurement information for data acquisition
and global configuration.
Table 2-1: Information displayed in the channel bar for the MSRA Primary
Ref Level Reference level
Att RF attenuation
Ref Offset Reference level offset
Freq Center frequency
Understanding the display information

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AQT Defined measurement time, i.e. the duration of data acquisition to the cap-
ture buffer
Rec Length Defined record length (number of samples to capture)
SRate Defined sample rate for data acquisition
RBW (Spectrum evaluation only) Resolution bandwidth calculated from the
sample rate and record length
In addition, the channel bar also displays information on instrument settings that affect
the measurement results even though this is not immediately apparent from the display
of the measured values (e.g. transducer or trigger settings). This information is dis-
played only when applicable for the current measurement. For details see the
R&S FSWP Getting Started manual.
Data coverage for each active secondary application
Each secondary application obtains an extract of the data captured by the MSRA pri-
mary (see also Chapter 5.3, "Multi-standard analysis", on page 27). Generally, if a sig-
nal contains data channels for multiple standards, the individual secondary applications
are used to analyze the channel for the corresponding standard. Thus, it is of interest
to know which secondary application is analyzing which part of the captured data, or
more precisely, which data channel. The MSRA Primary display indicates the data cov-
ered by each secondary application, restricted to the channel bandwidth used by the
corresponding standard, by vertical blue lines labeled with the secondary application
name. For secondary applications that support several standards (e.g. VSA, LTE) an
estimated or user-defined bandwidth is indicated.
2.2.3 MSRA secondary applications
The data captured by the MSRA primary measurement (or only parts of it) can be eval-
uated by various secondary applications. The measurement channel for each secon-
dary application contains the settings and results for the secondary application data
extract from the capture buffer.
The following figure shows the screen elements specific to the MSRA secondary appli-
cation tabs.
Understanding the display information

Welcome to the MSRA operating mode
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17User Manual 1177.5862.02 ─ 09
1
2
4
3
1 = Channel information bar for secondary application
2 = Analysis interval for current evaluation
3 = Result display for analysis interval
4 = Analysis line
The display for the individual MSRA secondary applications is identical to the display in
Signal and Spectrum Analyzer mode except for the following differences:
●The analysis interval indicates which part of the capture buffer is being evaluated
and displayed in each window.
●The acquisition time indicated in the channel bar (Meas Time) indicates the ana-
lyzed measurement time, not the captured time.
●Any bandwidth or sample rate values refer to the secondary application data, not to
the actual data acquisition from the input signal.
●The analysis line for time-based displays is only available in MSRA mode. It repre-
sents a common time marker in all secondary applications whose analysis interval
includes that time (see "Analysis line" on page 28).
For details on the individual secondary application displays see the corresponding
User Manuals for those applications.
Understanding the display information

Measurements and result displays
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3 Measurements and result displays
MSRA measurement
The only true measurement in MSRA mode in which I/Q data from the input signal is
captured and stored is performed by the MSRA primary application. This data acquisi-
tion is performed as in the I/Q Analyzer application, i.e. a specified frequency span of
the input signal is swept for a specified measurement time. The captured I/Q data can
then be analyzed in various different applications.
Result displays
The data that was captured by the MSRA primary can be evaluated in various different
applications. All evaluation modes available for the MSRA applications are displayed in
the selection bar in SmartGrid mode.
For details on working with the SmartGrid see the R&S FSWP Getting Started manual.
The result displays available in MSRA mode are those described for the individual
applications. The MSRA primary is implemented as an I/Q Analyzer application and
has the same result displays.
See the R&S FSWP I/Q Analyzer User Manual for a description of the result displays
available for the I/Q Analyzer and thus the MSRA primary.
Measurements in the time and frequency domain
The I/Q Analyzer secondary application (not primary) in MSRA mode can also perform
measurements on the captured I/Q data in the time and frequency domain (see also
Chapter 5.5, "Measurements in the time and frequency domain", on page 29).
This allows you to perform standard-specific and general power measurements (such
as ACLR or SEM) or statistical evaluations, as well as analyzing the EVM or modula-
tion accuracy, on the same captured I/Q data.

Measurements and result displays
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Time and frequency-based measurements are configured using the same settings and
provide similar results as in the Spectrum application. In addition, the analysis interval
used for the measurement is indicated as in all MSRA applications.
The time and frequency domain measurements and the available results are described
in detail in the R&S FSWP User Manual.

Applications and operating modes
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4 Applications and operating modes
The R&S FSWP provides several applications for different analysis tasks and different
types of signals, e.g. WCDMA, I/Q analysis or basic spectrum analysis. When you acti-
vate an application, a new measurement channel is created which determines the
measurement settings for that application. The same application can be activated with
different measurement settings by creating several channels for the same application.
Each channel is displayed in a separate tab on the screen.
The maximum number can be limited further by the available memory on the instru-
ment.
Independent vs correlating measurements
With the conventional R&S FSWP signal and spectrum analyzer, you can perform
several different measurements almost simultaneously. However, the individual mea-
surements are independent of each other - each application captures and evaluates
its own set of data, regardless of what the other applications do.
Sometimes, it can be useful to analyze the exact same input data using different
applications. For example, imagine capturing data from a base station and analyzing
the RF spectrum in the Modulation Analysis application. If a spur or an unexpected
peak occurs, possibly you want to analyze the same data in the I/Q Analyzer. There,
you see the real and imaginary components of the signal and can thus detect the rea-
son for the irregular signal. Normally, when you switch to a different application, evalu-
ation is performed on the data that was captured by that application, and not the previ-
ous one. In our example, the irregular signal is lost. Therefore, a second operating
mode is available in the R&S FSWP: Multistandard radio analyzer (MSRA) mode.
Multistandard radio analyzer mode
In multistandard radio analyzer (MSRA) mode, data acquisition is performed once
as an I/Q measurement by a primary application. The captured data is then evaluated
by any number of secondary applications for different radio standards. Data acquisition
and global configuration settings are controlled globally, while the evaluation and dis-
play settings can be configured individually for each secondary application. Using the
multistandard radio analyzer, unwanted correlations between different signal compo-
nents using different transmission standards can be detected. Thus, for example, an
irregularity in a GSM burst can be examined closer in the R&S FSWP 3G FDD BTS
(WCDMA) secondary application. There you can analyze dependencies like a change
in the EVM value.
Distinct operating modes
Although the applications themselves are identical in all operating modes, the handling
of the data between applications is not. Thus, the operating mode determines which
secondary applications are available and active. Whenever you change the operating
mode, the currently active measurement channels are closed. The default operating
mode is "Signal and Spectrum Analyzer" mode; however, the presetting can be
changed.