Ronde & Schwarz R&S SGU100A User manual

R&S®SGU100A
SGMA Upconverter
User Manual
1176772602
Version 10
(;ÚÛJ2)

This document describes the R&S®SGU100A, stock no. 1418.2005.02 and its options.
●R&S®SGU-B26 (1418.3401.02)
●R&S®SGU-B120/120V (1418.2605.02/1418.2657.02)
●R&S®SGU-B140/140V (1418.2870.02/1418.2928.02 )
This manual describes firmware version FW 5.00.232.xx and later of the R&S®SGU100A.
© 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.
All other trademarks are the properties of their respective owners.
1176.7726.02 | Version 10 | R&S®SGU100A
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®SGU is indicated as
R&S SGU.

Contents
R&S®SGU100A
3User Manual 1176.7726.02 ─ 10
Contents
1 Safety and regulatory information......................................................11
1.1 Safety instructions...................................................................................................... 11
1.2 Labels on R&S SGU.................................................................................................... 13
1.3 Warning messages in the documentation................................................................ 13
1.4 Korea certification class B......................................................................................... 14
2 Welcome............................................................................................... 15
2.1 Key features.................................................................................................................15
2.2 What's new...................................................................................................................15
2.3 Documentation overview............................................................................................16
2.3.1 Getting started manual..................................................................................................16
2.3.2 User manual and help................................................................................................... 16
2.3.3 Service manual............................................................................................................. 16
2.3.4 Instrument security procedures.....................................................................................16
2.3.5 Basic safety instructions................................................................................................17
2.3.6 Data sheets and brochures........................................................................................... 17
2.3.7 Release notes and open source acknowledgment (OSA)............................................ 17
2.3.8 Application notes, application cards, white papers, etc.................................................17
2.4 Typographical conventions........................................................................................17
2.5 Notes on screenshots.................................................................................................18
3 Preparing for use................................................................................. 19
3.1 Lifting and carrying.....................................................................................................19
3.2 Unpacking and checking............................................................................................19
3.3 Choosing the operating site.......................................................................................19
3.4 Setting up the R&S SGU.............................................................................................20
3.4.1 Placing the R&S SGU on a bench top.......................................................................... 20
3.4.2 Mounting the R&S SGU in a rack..................................................................................21
3.5 Considerations for test setup.................................................................................... 22
3.6 Connecting to power.................................................................................................. 22
3.7 Connecting to LAN......................................................................................................23
3.8 Connecting to RF 50Ω.................................................................................................23
3.9 Connecting to non-screwable connectors............................................................... 24

Contents
R&S®SGU100A
4User Manual 1176.7726.02 ─ 10
3.10 Switching on or off......................................................................................................25
3.11 Checking default settings.......................................................................................... 26
3.12 Working with Linux operating system...................................................................... 27
3.13 Connecting an external PC and devices...................................................................27
3.13.1 Installing the R&S SGMA-GUI software........................................................................28
3.13.2 Connecting a remote PC via LAN................................................................................. 30
3.13.3 Connecting a controller via PCI Express.......................................................................33
3.13.4 Connecting a controller via USB................................................................................... 33
4 Instrument tour.....................................................................................35
4.1 Front panel tour...........................................................................................................35
4.2 Rear panel tour............................................................................................................37
5 Trying out the Instrument....................................................................40
5.1 Extending R&S SGS with the R&S SGU....................................................................40
5.2 R&S SGU as a Standalone Upconverter................................................................... 44
6 Instrument control............................................................................... 47
6.1 Manual operation via R&S SGMA-GUI...................................................................... 47
6.1.1 Introduction to the user interface...................................................................................47
6.1.2 How to use the help system.......................................................................................... 48
7 System overview..................................................................................50
7.1 Setups for instrument control....................................................................................50
7.1.1 Manual operation from the R&S SGMA-GUI.................................................................50
7.1.2 Remote control from a controller...................................................................................50
7.1.3 Controlling the R&S SGU with an R&S signal generator.............................................. 51
7.2 Connecting an R&S SGS and an R&S SGU.............................................................. 51
7.2.1 Using a direct LAN connection......................................................................................52
7.2.2 Connecting to a company network................................................................................53
7.2.3 Connecting via a PCIe switch....................................................................................... 56
8 Understanding the R&S SGMA-GUI software....................................58
8.1 Operating menu and toolbar...................................................................................... 58
8.1.1 File menu...................................................................................................................... 59
8.1.2 Setup menu...................................................................................................................60
8.1.3 Help...............................................................................................................................67

Contents
R&S®SGU100A
5User Manual 1176.7726.02 ─ 10
8.2 Info dialog and messages in the info bar................................................................. 68
8.2.1 Info dialog......................................................................................................................68
8.2.2 Understanding the messages in the info bar.................................................................69
8.3 Main panel....................................................................................................................70
8.4 Working with R&S SGMA-GUI....................................................................................73
8.4.1 Saving and loading settings.......................................................................................... 73
8.4.2 Handling instruments in the R&S SGMA-GUI............................................................... 73
8.4.3 Finding out the default hostname of the instrument...................................................... 76
8.4.4 Bidirectional instrument identification............................................................................77
8.4.5 Managing messages in the info dialog..........................................................................80
8.5 Remote control of R&S SGMA-GUI........................................................................... 81
8.5.1 Programming examples................................................................................................ 81
8.5.2 R&S SGMA-GUI commands......................................................................................... 83
8.5.3 List of R&S SGMA-GUI commands.............................................................................. 88
9 Upconverter settings........................................................................... 89
9.1 Frequency settings..................................................................................................... 89
9.2 Level and power-on settings......................................................................................90
9.2.1 RF level......................................................................................................................... 90
9.2.2 Attenuator......................................................................................................................93
9.2.3 Power-On/EMF settings................................................................................................ 94
9.2.4 ALC............................................................................................................................... 95
9.3 I/Q modulation and signal impairment......................................................................96
9.3.1 I/Q impairments.............................................................................................................96
9.3.2 General I/Q settings...................................................................................................... 98
9.3.3 Analog impairment settings...........................................................................................99
9.4 Pulse modulation...................................................................................................... 100
9.4.1 Pulse modulation settings........................................................................................... 101
9.4.2 Pulse connector/trigger settings..................................................................................101
9.5 External local oscillator settings............................................................................. 102
9.6 Trigger connector settings.......................................................................................103
9.7 Preset......................................................................................................................... 104
10 General instrument settings and instrument setup........................105
10.1 Hardware configuration............................................................................................105

Contents
R&S®SGU100A
6User Manual 1176.7726.02 ─ 10
10.2 Software / options..................................................................................................... 107
10.3 Install SW options..................................................................................................... 109
10.4 Protection.................................................................................................................. 109
10.5 Security...................................................................................................................... 110
10.6 Network settings....................................................................................................... 113
10.7 Remote channels.......................................................................................................116
10.8 Factory preset............................................................................................................117
10.9 Eco mode................................................................................................................... 118
10.10 Standby and restart...................................................................................................118
10.11 Diagnostic and tests................................................................................................. 119
10.11.1 Keyboard tests.............................................................................................................119
11 Performing configuration tasks........................................................120
11.1 How to generate I/Q signals..................................................................................... 120
11.2 How to restore the LAN connection........................................................................ 123
11.3 How to switch between operating states................................................................123
11.4 How to use computer names................................................................................... 125
11.5 How to install a new firmware version on the instrument.....................................125
11.6 How to activate options............................................................................................127
11.7 How to set a PCIe direct connection....................................................................... 127
12 Network operation and remote control............................................ 129
12.1 Remote control interfaces and protocols............................................................... 129
12.1.1 Remote control programs and libraries....................................................................... 130
12.1.2 LAN interface.............................................................................................................. 133
12.1.3 USB interface.............................................................................................................. 136
12.1.4 PCI Express interface................................................................................................. 136
12.1.5 GPIB interface (IEC/IEEE bus interface).....................................................................137
12.2 Starting a remote control session........................................................................... 138
12.2.1 How to find the VISA resource string.......................................................................... 138
12.2.2 Remote control over LAN using socket communication..............................................138
12.3 Advanced remote control using PCIe..................................................................... 140
12.3.1 Setting up a remote control connection via PCIe........................................................ 140
12.3.2 Downloading the drivers..............................................................................................141
12.3.3 Configuring the controller............................................................................................ 141

Contents
R&S®SGU100A
7User Manual 1176.7726.02 ─ 10
12.3.4 Connecting the controller and the instrument............................................................. 144
12.3.5 Enabling fast settings.................................................................................................. 144
12.4 Advanced remote control using fast socket.......................................................... 145
12.4.1 Setting up a remote control connection via fast socket...............................................145
12.4.2 Installing the protocol driver........................................................................................ 146
12.4.3 Enabling fast settings.................................................................................................. 146
12.5 Status reporting system........................................................................................... 147
12.5.1 Hierarchy of the status registers................................................................................. 147
12.5.2 Structure of a SCPI status register..............................................................................149
12.5.3 Status byte (STB) and service request enable register (SRE)....................................151
12.5.4 Event status register (ESR) and event status enable register (ESE)..........................152
12.5.5 Questionable status register (STATus:QUEStionable)................................................152
12.5.6 Operation status register (STATus:OPERation).......................................................... 153
12.5.7 Application of the status reporting system.................................................................. 153
12.5.8 Reset values of the status reporting system............................................................... 155
12.6 LXI configuration.......................................................................................................155
12.6.1 Default network settings..............................................................................................156
12.6.2 LXI browser settings....................................................................................................156
12.6.3 LAN configuration........................................................................................................157
12.6.4 How to record SCPI commands and messages via LXI............................................. 159
12.7 Monitoring remote control operation with R&S SGMA-GUI..................................160
13 Remote control commands...............................................................162
13.1 Programming Examples........................................................................................... 163
13.1.1 Performing General Tasks for Instrument Setup.........................................................163
13.1.2 Generating an I/Q Modulated Signal...........................................................................165
13.1.3 Advanced Task for Optimizing Performance...............................................................166
13.1.4 Adjusting Network and Remote Channel Settings...................................................... 168
13.2 Common commands.................................................................................................169
13.3 General commands...................................................................................................173
13.4 Preset commands..................................................................................................... 174
13.5 CALibration subsystem............................................................................................175
13.6 CONNector subsystem............................................................................................. 180
13.7 DIAGnostic subsystem.............................................................................................180

Contents
R&S®SGU100A
8User Manual 1176.7726.02 ─ 10
13.8 Fast speed commands............................................................................................. 181
13.9 FORMat Subsystem.................................................................................................. 181
13.10 MMEMory subsystem............................................................................................... 183
13.10.1 File naming conventions............................................................................................. 183
13.10.2 Extensions for user files.............................................................................................. 184
13.10.3 Examples.................................................................................................................... 184
13.10.4 Remote control commands......................................................................................... 186
13.11 OUTPut subsystem................................................................................................... 191
13.12 SOURce subsystem.................................................................................................. 193
13.13 SOURce:IQ subsystem............................................................................................. 194
13.14 SOURce:LOSCillator subsystem............................................................................. 196
13.15 SOURce:POWer subsystem.....................................................................................198
13.16 SOURce:PULM subsystem.......................................................................................202
13.17 STATus subsystem....................................................................................................203
13.18 SYSTem subsystem.................................................................................................. 207
13.19 TEST subsystem....................................................................................................... 217
13.20 UNIT subsystem........................................................................................................ 219
13.21 List of R&S SGU commands.................................................................................... 219
14 Error messages and troubleshooting.............................................. 223
14.1 Status information.................................................................................................... 223
14.2 Error messages......................................................................................................... 223
14.2.1 Volatile messages....................................................................................................... 223
14.2.2 Permanent messages................................................................................................. 224
14.3 SCPI-Error messages............................................................................................... 224
14.4 Device-Specific error messages..............................................................................224
14.5 Contacting customer support..................................................................................226
15 Transporting....................................................................................... 227
16 Maintenance, storage and disposal................................................. 228
16.1 Cleaning..................................................................................................................... 228
16.2 Storage.......................................................................................................................228
16.3 Disposal..................................................................................................................... 228

Contents
R&S®SGU100A
9User Manual 1176.7726.02 ─ 10
Annex.................................................................................................. 229
A Telnet program examples..................................................................229
Index....................................................................................................235

Contents
R&S®SGU100A
10User Manual 1176.7726.02 ─ 10

Safety and regulatory information
R&S®SGU100A
11User Manual 1176.7726.02 ─ 10
1 Safety and regulatory information
The product documentation helps you use the product safely and efficiently. Follow the
instructions provided here and in the following chapters.
Intended use
The product is intended for the development, production and verification of electronic
components and devices in industrial, administrative, and laboratory environments.
Use the product only for its designated purpose. Observe the operating conditions and
performance limits stated in the data sheet.
Where do I find safety information?
Safety information is part of the product documentation. It warns you of potential dan-
gers and gives instructions on how to prevent personal injury or damage caused by
dangerous situations. Safety information is provided as follows:
●In Chapter 1.1, "Safety instructions", on page 11. The same information is provi-
ded in many languages as printed "Safety Instructions". The printed "Safety
Instructions" are delivered with the product.
●Throughout the documentation, safety instructions are provided when you need to
take care during setup or operation.
1.1 Safety instructions
Products from the Rohde & Schwarz group of companies are manufactured according
to the highest technical standards. To use the products safely, follow the instructions
provided here and in the product documentation. Keep the product documentation
nearby and offer it to other users.
Use the product only for its intended use and within its performance limits. Intended
use and limits are described in the product documentation such as the data sheet,
manuals and the printed "Safety Instructions". If you are unsure about the appropriate
use, contact Rohde & Schwarz customer service.
Using the product requires specialists or specially trained personnel. These users also
need sound knowledge of at least one of the languages in which the user interfaces
and the product documentation are available.
Never open the casing of the product. Only service personnel authorized by
Rohde & Schwarz are allowed to repair the product. If any part of the product is dam-
aged or broken, stop using the product. Contact Rohde & Schwarz customer service at
http://www.customersupport.rohde-schwarz.com.
Lifting and carrying the product
The maximum weight of the product is provided in the data sheet. To move the product
safely, you can use lifting or transporting equipment such as lift trucks and forklifts. Fol-
low the instructions provided by the equipment manufacturer.
Safety instructions

Safety and regulatory information
R&S®SGU100A
12User Manual 1176.7726.02 ─ 10
Choosing the operating site
Only use the product indoors. The product casing is not waterproof. Water that enters
can electrically connect the casing with live parts, which can lead to electric shock,
serious personal injury or death if you touch the casing. If Rohde & Schwarz provides
accessories designed for your product, e.g. a carrying bag, you can use the product
outdoors.
Unless otherwise specified, you can operate the product up to an altitude of 2000 m
above sea level. The product is suitable for pollution degree 2 environments where
nonconductive contamination can occur. For more information on environmental condi-
tions such as ambient temperature and humidity, see the data sheet.
Setting up the product
Always place the product on a stable, flat and level surface with the bottom of the prod-
uct facing down. If the product is designed for different positions, secure the product so
that it cannot fall over.
If the product has foldable feet, always fold the feet completely in or out to ensure sta-
bility. The feet can collapse if they are not folded out completely or if the product is
moved without lifting it. The foldable feet are designed to carry the weight of the prod-
uct, but not an extra load.
If stacking is possible, keep in mind that a stack of products can fall over and cause
injury.
If you mount products in a rack, ensure that the rack has sufficient load capacity and
stability. Observe the specifications of the rack manufacturer. Always install the prod-
ucts from the bottom shelf to the top shelf so that the rack stands securely. Secure the
product so that it cannot fall off the rack.
Connecting to power
The product is an overvoltage category II product. Connect the product to a fixed
installation used to supply energy-consuming equipment such as household applian-
ces and similar loads. Keep in mind that electrically powered products have risks, such
as electric shock, fire, personal injury or even death.
Take the following measures for your safety:
●Before switching on the product, ensure that the voltage and frequency indicated
on the product match the available power source. If the power adapter does not
adjust automatically, set the correct value and check the rating of the fuse.
●Only use the power cable delivered with the product. It complies with country-spe-
cific safety requirements. Only insert the plug into an outlet with protective conduc-
tor terminal.
●Only use intact cables and route them carefully so that they cannot be damaged.
Check the power cables regularly to ensure that they are undamaged. Also ensure
that nobody can trip over loose cables.
●If the product needs an external power supply, use the power supply that is deliv-
ered with the product or that is recommended in the product documentation or a
power supply that conforms to the country-specific regulations.
Safety instructions

Safety and regulatory information
R&S®SGU100A
13User Manual 1176.7726.02 ─ 10
●Only connect the product to a power source with a fuse protection of maximum
20 A.
●Ensure that you can disconnect the product from the power source at any time.
Pull the power plug to disconnect the product. The power plug must be easily
accessible. If the product is integrated into a system that does not meet these
requirements, provide an easily accessible circuit breaker at the system level.
Cleaning the product
Use a dry, lint-free cloth to clean the product. When cleaning, keep in mind that the
casing is not waterproof. Do not use liquid cleaning agents.
Meaning of safety labels
Safety labels on the product warn against potential hazards.
Potential hazard
Read the product documentation to avoid personal injury or product damage.
Electrical hazard
Indicates live parts. Risk of electric shock, fire, personal injury or even death.
Hot surface
Do not touch. Risk of skin burns. Risk of fire.
Protective conductor terminal
Connect this terminal to a grounded external conductor or to protective ground. This connec-
tion protects you against electric shock if an electric problem occurs.
1.2 Labels on R&S SGU
Labels on the casing inform about:
●Personal safety, see "Connecting to power" on page 12.
●Product and environment safety, see Table 1-1.
●Identification of the product, see the serial number on the rear panel.
Table 1-1: Labels regarding R&S
SGU and environment safety
Labeling in line with EN 50419 for disposal of electrical and electronic equipment after the prod-
uct has come to the end of its service life. For more information, see Chapter 16, "Maintenance,
storage and disposal", on page 228.
1.3 Warning messages in the documentation
A warning message points out a risk or danger that you need to be aware of. The sig-
nal word indicates the severity of the safety hazard and how likely it will occur if you do
not follow the safety precautions.
Warning messages in the documentation

Safety and regulatory information
R&S®SGU100A
14User Manual 1176.7726.02 ─ 10
WARNING
Potentially hazardous situation. Could result in death or serious injury if not avoided.
CAUTION
Potentially hazardous situation. Could result in minor or moderate injury if not avoided.
NOTICE
Potential risks of damage. Could result in damage to the supported product or to other
property.
1.4 Korea certification class B
이 기기는 가정용(B급) 전자파 적합기기로서 주로 가정에서 사용하는 것을 목적으로 하
며, 모든 지역에서 사용할 수 있습니다.
Korea certification class B

Welcome
R&S®SGU100A
15User Manual 1176.7726.02 ─ 10
2 Welcome
The R&S SGU is an upconverter in the frequency range of 10 MHz to 40 GHz.
Optimized for use in automated test equipment (ATE), the instrument offers fast settling
times in an exceptionally small form factor and low power consumption. The R&S SGU
has LO connectors for coupling multiple generators to a common LO source and can
be equipped with a mechanical step attenuator.
2.1 Key features
The key features of the R&S SGU include the following:
●Compact size and low power consumption
●Remote connection via PCI Express, minimizing the setup time
Alternatively, LAN or USB connections available
●Coherent LO input and output connectors, also usable as MIMO input/output and
phase coherent I/Q demodulation
●Linux operating system
●Graphical user interface R&S SGMA-GUI to set up and control one or more
R&S SGU instruments simultaneously from one remote computer, available for
Windows and Linux systems
2.2 What's new
This manual describes firmware version FW 5.00.232.xx and later of the
R&S®SGU100A.
Compared to the previous version, it provides the new features listed below:
●Upgrading to R&S SGU firmware versions 5.00.vvv.vv and later, see "Upgrading to
firmware versions 5.00.vvv.vv and later" on page 29.
●Extended "Configure Instruments" settings including scanning the subnet, setting
the IP address and the prefix length, see Chapter 8.1.2.1, "Configure instruments",
on page 60.
●Password management including user password and security password settings,
see Chapter 10.5, "Security", on page 110.
●Editorial changes, major changes are as follows:
– Safety and regulatory information updated, see Chapter 1, "Safety and regula-
tory information", on page 11.
– Getting started updated, see Chapter 3, "Preparing for use", on page 19,
Chapter 4, "Instrument tour", on page 35, Chapter 5, "Trying out the Instru-
ment", on page 40 and Chapter 6, "Instrument control", on page 47.
– Transporting added, see Chapter 15, "Transporting", on page 227.
What's new

Welcome
R&S®SGU100A
16User Manual 1176.7726.02 ─ 10
– Maintenance, storage and disposal added, see Chapter 16, "Maintenance,
storage and disposal", on page 228.
2.3 Documentation overview
This section provides an overview of the R&S SGU user documentation. Unless speci-
fied otherwise, you find the documents on the R&S SGU product page at:
www.rohde-schwarz.com/manual/sgu100a
2.3.1 Getting started manual
Introduces the R&S SGU 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.
2.3.2 User manual and help
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 manuals are available as help in the R&S SGU. The help
offers quick, context-sensitive access to the complete information.
All user manuals are also available for download or for immediate display on the Inter-
net.
2.3.3 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).
2.3.4 Instrument security procedures
Deals with security issues when working with the R&S SGU in secure areas. It is avail-
able for download on the Internet.
Documentation overview

Welcome
R&S®SGU100A
17User Manual 1176.7726.02 ─ 10
2.3.5 Basic safety instructions
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
2.3.6 Data sheets and brochures
The data sheet contains the technical specifications of the R&S SGU. 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/sgu100a
2.3.7 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/sgu100a
2.3.8 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/sgu100a.
2.4 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.
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.
Typographical conventions

Welcome
R&S®SGU100A
18User Manual 1176.7726.02 ─ 10
Convention Description
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.
2.5 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.
Notes on screenshots

Preparing for use
R&S®SGU100A
19User Manual 1176.7726.02 ─ 10
3 Preparing for use
Here, you can find basic information about setting up the product for the first time.
3.1 Lifting and carrying
See also "Lifting and carrying the product" on page 11.
► Use the carrying handles at the side for lifting and carrying the R&S SGU.
The handles at the front are only for pushing and pulling the instrument when
mounting in a rack, see Chapter 3.4.2, "Mounting the R&S SGU in a rack",
on page 21.
3.2 Unpacking and checking
1. Unpack the R&S SGU carefully.
2. Retain the original packing material. Use it to protect the control elements and con-
nectors when transporting or shipping the R&S SGU later.
See also Chapter 15, "Transporting", on page 227.
3. Using the delivery notes, check the equipment for completeness.
4. Check the equipment for damage.
If the delivery is incomplete or equipment is damaged, contact Rohde & Schwarz.
3.3 Choosing the operating site
Specific operating conditions ensure proper operation and avoid damage to the prod-
uct and connected devices. For information on environmental conditions such as ambi-
ent temperature and humidity, see the data sheet.
See also "Choosing the operating site" on page 12.
Electromagnetic compatibility classes
The electromagnetic compatibility (EMC) class indicates where you can operate the
product. The EMC class of the product is given in the data sheet.
●Class B equipment is suitable for use in:
– Residential environments
– Environments that are directly connected to a low-voltage supply network that
supplies residential buildings
Choosing the operating site

Preparing for use
R&S®SGU100A
20User Manual 1176.7726.02 ─ 10
●Class A equipment is intended for use in industrial environments. It can cause
radio disturbances in residential environments due to possible conducted and radi-
ated disturbances. It is therefore not suitable for class B environments.
If class A equipment causes radio disturbances, take appropriate measures to
eliminate them.
3.4 Setting up the R&S SGU
See also:
●"Setting up the product" on page 12
●"Intended use" on page 11
3.4.1 Placing the R&S SGU on a bench top
To place the product on a bench top
1. Place the product on a stable, flat and level surface. Ensure that the surface can
support the weight of the product. For information on the weight, see the data
sheet.
2. WARNING! A stack of products can fall over and cause injury. Never stack more
than three products on top of each other. Instead, mount them in a rack.
Stack as follows:
● If the products have foldable feet, fold them in completely.
● It is best if all products have the same dimensions (width and length). If the
products have different dimensions, stack according to size and place the
smallest product on top.
● Do not exceed the permissible total load placed on the product at the bottom of
the stack:
– 50 kg when stacking products of identical dimensions (left figure).
– 25 kg when stacking smaller products on top (middle figure).
Setting up the R&S SGU