Rohde & Schwarz ESW-K55E User manual

R&S®ESW-K55E and -K55R
Real-Time Spectrogram
User Manual
1179598202
Version 01
(;ÝÉà2)

This manual describes the following R&S®ESW models:
●R&S®ESW8 (1328.4100K08)
●R&S®ESW8 (1328.4100K09)
●R&S®ESW26 (1328.4100K26)
●R&S®ESW26 (1328.4100K27)
●R&S®ESW44 (1328.4100K44)
●R&S®ESW44 (1328.4100K45)
The contents of this manual correspond to firmware version 3.00 and higher.
The following firmware options are described:
●R&S®ESW-K55E (1351.1026.02)
●R&S®ESW-K55R (1351.1226.02)
© 2023 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.
1179.5982.02 | Version 01 | R&S®ESW-K55E and -K55R
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®ESW is indicated as
R&S ESW.

Contents
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Contents
1 Preface.................................................................................................... 5
1.1 About this manual.........................................................................................................5
1.2 Documentation overview..............................................................................................5
1.3 Conventions used in the documentation....................................................................7
2 Welcome to the real-time spectrogram application............................9
2.1 Starting real-time spectrogram measurements......................................................... 9
2.2 Understanding the display information.................................................................... 10
3 Measurements and result displays.................................................... 13
3.1 Result display..............................................................................................................13
3.2 How to run a real-time spectrogram..........................................................................14
4 Configuration........................................................................................16
4.1 Notes about configuring real-time spectrogram measurements........................... 16
4.2 Configuration overview.............................................................................................. 17
4.3 General measurement settings..................................................................................18
4.4 Data input and output................................................................................................. 18
4.5 Frequency configuration............................................................................................ 21
4.6 Amplitude and vertical axis configuration................................................................24
4.7 Bandwidth configuration............................................................................................32
4.8 Sweep settings............................................................................................................ 35
4.9 Trigger.......................................................................................................................... 36
4.10 Display configuration................................................................................................. 39
4.11 Transducer...................................................................................................................39
5 Analysis................................................................................................ 40
5.1 Trace settings.............................................................................................................. 40
5.2 Marker settings............................................................................................................40
5.3 Line settings................................................................................................................ 40
6 Remote commands for real-time spectrogram measurements....... 41
6.1 Introduction................................................................................................................. 41
6.2 Common suffixes........................................................................................................ 46
6.3 Application selection.................................................................................................. 46

Contents
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6.4 Result display configuration......................................................................................50
6.5 Configuration...............................................................................................................58
6.6 Analysis....................................................................................................................... 79
List of commands................................................................................ 80
Index......................................................................................................82

Preface
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1 Preface
1.1 About this manual
This Real-Time Spectrogram User Manual provides all the information specific to the
application. All general instrument functions and settings common to all applications
and operating modes are described in the main R&S ESW 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 Real-Time Spectrogram Application
Introduction to and getting familiar with the application
●Measurements and Result Displays
Details on supported measurements and their result types
●Measurement Basics
Background information on basic terms and principles in the context of the mea-
surement
●Configuration + Analysis
A concise description of all functions and settings available to configure measure-
ments and analyze results with their corresponding remote control command
●Measurement Examples
Detailed measurement examples to guide you through typical measurement sce-
narios and allow you to try out the application immediately
●Remote Commands for Real-Time Spectrogram Measurements
Remote commands required to configure and perform Real-Time Spectrogram
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 ESW User Manual)
Programming examples demonstrate the use of many commands and can usually
be executed directly for test purposes
●List of remote commands
Alphabetical list of all remote commands described in the manual
●Index
1.2 Documentation overview
This section provides an overview of the R&S ESW user documentation. You find it on
the product page at:
www.rohde-schwarz.com/manual/esw
Documentation overview

Preface
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1.2.1 Getting started manual
Introduces the R&S ESW 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.
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.
●Manuals for (optional) firmware applications
Contains the description of the specific functions of a firmware application, includ-
ing remote control commands. Basic information on operating the R&S ESW is not
included.
The contents of the user manuals are available as help in the R&S ESW. 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 download 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 ESW in secure areas. It is avail-
able for download on the Internet.
Documentation overview

Preface
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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 ESW. It also lists the
options 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/esw
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/esw
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/esw
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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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 real-time spectrogram application
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2 Welcome to the real-time spectrogram
application
The real-time spectrogram application provides functionality to perform real-time spec-
trogram measurements with the R&S ESW.
Requirements
●The R&S ESW-K55E requires an R&S ESW equipped with R&S ESW-B350 or -
B1000
●The R&S ESW-K55R requires an R&S ESW equipped with R&S ESW-B350R or -
B1000R
The application features real-time spectrogram measurements with two main result dis-
plays:
●Sweep
●Sweep spectrogram
This user manual contains a description of the functionality that the application pro-
vides, including remote control operation.
All functions not discussed in this manual are the same as in the base unit and are
described in the R&S ESW user manual. The latest version is available for download at
the product homepage http://www.rohde-schwarz.com/product/esw.
Installation
You can find detailed installation instructions in the R&S ESW getting started manual or
in the release notes.
2.1 Starting real-time spectrogram measurements
Real-time spectrogram measurements is a separate application on the R&S ESW.
To activate real-time spectrogram measurements
1. Select the [MODE] key.
A dialog box opens that contains all operating modes and applications currently
available on your R&S ESW.
2. Select the "Real-Time Spectrogram" item.
The R&S ESW opens a new channel for the application.
Starting real-time spectrogram measurements

Welcome to the real-time spectrogram application
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The measurement is started immediately with the default settings. It can be configured
in the real-time spectrogram configuration dialog box, which is displayed when you
select the "Overview" softkey from any menu.
Multiple Channels and sequencer function
When you activate an application, a new channel is created which determines the
measurement settings for that application ("Channel"). The same application can be
activated with different measurement settings by creating several "Channel"s for the
same application.
The number of channels that can be configured at the same time depends on the avail-
able memory on the instrument.
Only one measurement can be performed at any time, namely the one in the currently
active channel. However, in order to perform the configured measurements consecu-
tively, a Sequencer function is provided.
If activated, the measurements configured in the currently defined "Channel"s are per-
formed one after the other in the order of the tabs. The currently active measurement is
indicated by a symbol in the tab label.
The result displays of the individual channels are updated in the tabs (as well as the
"MultiView") as the measurements are performed. Sequential operation itself is inde-
pendent of the currently displayed tab.
For details on the sequencer function see the R&S ESW user manual.
2.2 Understanding the display information
The following figure shows a measurement diagram during real-time spectrogram mea-
surements. All different information areas are labeled. They are explained in more
detail in the following sections.
Understanding the display information