Rohde&Schwarz R&S®SMM-K548 Crest Factor Reduction User Manual
R&S®SMM-K548
Crest Factor Reduction
User Manual
(;ÝGI2)
1179232502
Version 04
This document describes the following software options:
●
R&S®SMM-K548 Crest Factor Reduction (1441.1130.xx)
This manual describes firmware version FW 5.00.044.xx and later of the R&S®SMM100A.
© 2021 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
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.
1179.2325.02 | Version 04 | R&S®SMM-K548
The following abbreviations are used throughout this manual: R&S®SMM100A is abbreviated as R&S SMM; the license types
02/03/07/11/13/16/12 are abbreviated as xx.
R&S®SMM-K548
1 Welcome to the R&S SMM-K548 option...............................................5
1.1 Accessing the required settings..................................................................................5
1.2 What's new.....................................................................................................................6
1.3 Documentation overview..............................................................................................6
1.3.1 Getting started manual....................................................................................................6
1.3.2 User manuals and help................................................................................................... 6
1.3.3 Service manual............................................................................................................... 6
1.3.4 Instrument security procedures.......................................................................................7
1.3.5 Printed safety instructions............................................................................................... 7
1.3.6 Data sheets and brochures............................................................................................. 7
1.3.7 Release notes and open source acknowledgment (OSA).............................................. 7
Contents
Contents
1.3.8 Application notes, application cards, white papers, etc...................................................7
1.4 Scope............................................................................................................................. 8
1.5 Notes on screenshots...................................................................................................8
2 About the crest factor reduction.......................................................... 9
3 Crest factor reduction settings...........................................................10
4 Remote-control commands.................................................................14
List of commands................................................................................ 20
Index......................................................................................................21
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R&S®SMM-K548
Contents
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R&S®SMM-K548
1 Welcome to the R&S SMM-K548 option
Welcome to the R&S SMM-K548 option
Accessing the required settings
The R&S SMM-K548 is a software option that allows you to generate signals with
reduced crest factor.
R&S SMM-K548 key features
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Reduces the crest factor of a baseband signal through clipping the high signal
peaks and filtering the waveform afterwards.
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Can be applied to any waveform file loaded in the arbitrary waveform generator.
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It uses an iterative process to reach the desired crest factor delta.
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It is possible to adjust the filter characteristics. In simple mode, you can specify the
channel spacing and signal bandwidth. Alternatively in the advanced filter mode
you can specify the lowpass filter through passband and stopband frequencies.
This user manual contains a description of the functionality that the application provides, 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 SMM100A user manual. The latest version is available at:
www.rohde-schwarz.com/manual/SMM100A
Installation
You can find detailed installation instructions in the delivery of the option or in the
R&S SMM100A service manual.
1.1 Accessing the required settings
1. In the block diagram of the R&S SMM100A, select the "Baseband" > "ARB".
A dialog box opens that displays the provided general settings.
2. Select "Load Waveform".
Navigate to waveform file and load it.
3. Select "ARB > State > On".
4. Select "Crest Factor Reduction".
The signal generation is started. To apply the crest factor reduction with the default settings, select "State > On".
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1.2 What's new
1.3 Documentation overview
1.3.1 Getting started manual
Welcome to the R&S SMM-K548 option
Documentation overview
This manual describes firmware version FW 5.00.044.xx and later of the
R&S®SMM100A.
Compared to the previous version there are editorial changes only.
This section provides an overview of the R&S SMM100A user documentation. Unless
specified otherwise, you find the documents on the R&S SMM100A product page at:
www.rohde-schwarz.com/manual/smm100a
Introduces the R&S SMM100A and describes how to set up and start working with the
product. Includes basic operations, typical measurement examples, and general information, e.g. safety instructions, etc. A printed version is delivered with the instrument.
1.3.2 User manuals and help
Separate manuals for the base unit and the software options are provided for download:
●
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 commands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
●
Software option manual
Contains the description of the specific functions of an option. Basic information on
operating the R&S SMM100A is not included.
The contents of the user manuals are available as help in the R&S SMM100A. The
help offers quick, context-sensitive access to the complete information for the base unit
and the software options.
All user manuals are also available for download or for immediate display on the Internet.
1.3.3 Service manual
Describes the performance test for checking compliance with rated specifications, firmware update, troubleshooting, adjustments, installing options and maintenance.
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1.3.4 Instrument security procedures
1.3.5 Printed safety instructions
1.3.6 Data sheets and brochures
Welcome to the R&S SMM-K548 option
Documentation overview
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS):
https://gloris.rohde-schwarz.com
Deals with security issues when working with the R&S SMM100A in secure areas. It is
available for download on the Internet.
Provides safety information in many languages. The printed document is delivered with
the product.
The data sheet contains the technical specifications of the R&S SMM100A. 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 characteristics.
See www.rohde-schwarz.com/brochure-datasheet/smm100a
1.3.7 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/smm100a
1.3.8 Application notes, application cards, white papers, etc.
These documents deal with special applications or background information on particular topics.
See www.rohde-schwarz.com/application/smm100a
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