R&S®SMB100A
RF and Microwave Signal Generator
Quick Start Guide
(>78<Ì)
1407081262
Version 20
This document describes the R&S®SMB100A, stock no. 1406.6000K02/K03 and its options.
© 2022 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, 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.
1407.0812.62 | Version 20 | R&S®SMB100A
The following abbreviations are used throughout this manual: R&S®SMB100A is abbreviated as R&S SMB, Linux® is abbreviated as
Linux.
R&S®SMB100A
1 Safety and Regulatory Information...................................................... 7
1.1 Safety instructions........................................................................................................7
1.2 Labels on R&S SMB......................................................................................................9
1.3 Warning Messages in the Documentation................................................................10
1.4 Korea certification class B......................................................................................... 10
2 Documentation overview.....................................................................11
2.1 User manual and help................................................................................................. 11
2.2 Data sheets and brochures........................................................................................ 11
2.3 Release notes and open source acknowledgment (OSA)....................................... 11
2.4 Application notes, application cards, white papers, etc......................................... 12
Contents
Contents
3 Key Features.........................................................................................13
4 Preparing for Use.................................................................................14
4.1 Lifting and Carrying.................................................................................................... 14
4.2 Unpacking and Checking........................................................................................... 14
4.3 Choosing the Operating Site......................................................................................14
4.4 Setting Up the R&S SMB............................................................................................ 15
4.4.1 Placing the R&S SMB on a Bench Top......................................................................... 15
4.4.2 Mounting the R&S SMB in a Rack................................................................................ 16
4.5 Considerations for Test Setup................................................................................... 17
4.6 Connecting to Power.................................................................................................. 18
4.7 Connecting to LAN......................................................................................................18
4.8 Connecting to IEC 625/IEEE 488 (GPIB)....................................................................19
4.9 Connecting USB Devices........................................................................................... 19
4.10 Connecting to RF........................................................................................................ 20
4.11 Connecting to Ref In/Ref Out.....................................................................................21
4.12 Switching On or Off.................................................................................................... 21
4.13 Default Settings...........................................................................................................23
4.14 Working with Linux Operating System..................................................................... 24
4.15 Setting Up a Network (LAN) Connection...................................................................24
4.15.1 Assigning the IP Address.............................................................................................. 24
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4.15.2 Using Computer Names................................................................................................26
4.16 Remote Access via an External Controller...............................................................26
4.16.1 Using a Web Browser for Remote Access.................................................................... 28
4.16.2 Remote Access via a VNC Client Software.................................................................. 29
4.17 LXI Configuration........................................................................................................ 33
4.17.1 LXI Browser Settings.....................................................................................................34
4.17.2 LAN Configuration.........................................................................................................36
5 Instrument Tour....................................................................................43
5.1 Front Panel Tour..........................................................................................................43
5.1.1 Utility Keys.................................................................................................................... 43
5.1.2 Standby LEDs and Standby Key...................................................................................44
5.1.3 Display.......................................................................................................................... 44
Contents
5.1.4 Setup Keys....................................................................................................................45
5.1.5 Keypad for data entry....................................................................................................46
5.1.6 Rotary Knob and Navigation Keys................................................................................ 47
5.1.7 Front Panel Connectors................................................................................................ 48
5.2 Rear Panel Tour........................................................................................................... 49
5.2.1 Description of the Connectors.......................................................................................50
6 Trying out the Instrument....................................................................53
7 System Overview................................................................................. 58
7.1 Brief Introduction to the Instrument's Concept....................................................... 58
7.2 Signal Flow at a Glance.............................................................................................. 58
7.3 Application Field of the Instrument...........................................................................59
7.4 Description of Individual Diagram Blocks................................................................ 59
8 Instrument Control...............................................................................62
8.1 Manual Operation........................................................................................................62
8.1.1 Legend of Manual Controls........................................................................................... 62
8.1.2 Key Elements................................................................................................................ 65
8.1.3 Display.......................................................................................................................... 67
8.1.4 Accessing Dialogs.........................................................................................................72
8.1.5 Setting Parameters....................................................................................................... 73
8.1.6 Editors........................................................................................................................... 80
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8.1.7 How to Use the Help System........................................................................................ 81
8.1.8 File Management.......................................................................................................... 83
8.1.9 Legend of Front-Panel Controls.................................................................................... 86
8.2 Remote Control........................................................................................................... 88
8.3 Remote Access........................................................................................................... 89
9 Contacting customer support.............................................................90
Contents
Index......................................................................................................91
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Contents
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R&S®SMB100A
1 Safety and Regulatory Information
Safety and Regulatory Information
Safety instructions
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 dangers and gives instructions on how to prevent personal injury or damage caused by
dangerous situations. Safety information is provided as follows:
●
In Safety instructions. The same information is provided 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 damaged 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. Follow the instructions provided by the equipment manufacturer.
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R&S®SMB100A
Safety and Regulatory Information
Safety instructions
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 conditions 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 product 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 stability. 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 product, 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 products 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 appliances 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.
●
If a product has an exchangeable fuse, its type and characteristics are indicated
next to the fuse holder. Before changing the fuse, switch off the product and disconnect it from the power source. How to change the fuse is described in the product documentation.
●
Only use the power cable delivered with the product. It complies with country-specific safety requirements. Only insert the plug into an outlet with protective conductor 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.
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R&S®SMB100A
Safety and Regulatory Information
Labels on R&S SMB
●
If the product needs an external power supply, use the power supply that is delivered with the product or that is recommended in the product documentation or a
power supply that conforms to the country-specific regulations.
●
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 connection protects you against electric shock if an electric problem occurs.
1.2 Labels on R&S SMB
Labels on the casing inform about:
●
Personal safety, see "Connecting to power" on page 8.
●
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
SMB and environment safety
Labeling in line with EN 50419 for disposal of electrical and electronic equipment after the product has come to the end of its service life. For more information, see the product user manual,
chapter "Disposal".
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R&S®SMB100A
1.3 Warning Messages in the Documentation
Safety and Regulatory Information
Korea certification class B
A warning message points out a risk or danger that you need to be aware of. The signal word indicates the severity of the safety hazard and how likely it will occur if you do
not follow the safety precautions.
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.
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R&S®SMB100A
2 Documentation overview
2.1 User manual and help
Documentation overview
Release notes and open source acknowledgment (OSA)
This section provides an overview of the R&S SMB user documentation. Unless specified otherwise, you find the documents on the R&S SMB product page at:
www.rohde-schwarz.com/manual/smb100a
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 quick start guide manual.
The contents of the user manuals are available as help in the R&S SMB. 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 Internet.
2.2 Data sheets and brochures
The data sheet contains the technical specifications of the R&S SMB. 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/smb100a
2.3 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/smb100a
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2.4 Application notes, application cards, white papers,
Documentation overview
Application notes, application cards, white papers, etc.
etc.
These documents deal with special applications or background information on particular topics.
See www.rohde-schwarz.com/application/smb100a.
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R&S®SMB100A
3 Key Features
Key Features
The R&S SMB is a new high-performance signal generator developed to meet
demanding customer requirements. Offering excellent signal characteristic and
straightforward and intuitive operation, the signal generator makes signal generation
fast and easy.
Outstanding key features of the R&S SMB are:
●
Frequency range from 100 kHz to up to 40 GHz
●
SSB phase noise of –108 dBc (typ.) at 10 GHz and 20 kHz offset
●
Wideband noise of –138 dBc at 10 GHz and 30 MHz offset
●
High output power of up to +27 dBm (meas.)
●
Analog modulations with AM, FM/φM and pulse modulation
For more information, see data sheet.
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R&S®SMB100A
4 Preparing for Use
4.1 Lifting and Carrying
4.2 Unpacking and Checking
Preparing for Use
Choosing the Operating Site
Here, you can find basic information about setting up the product for the first time.
See "Lifting and carrying the product" on page 7.
► Use the carrying handle at the side for lifting and carrying the R&S SMB.
For mounting the R&S SMB in a rack, see Chapter 4.4.2, "Mounting the R&S SMB in a
Rack", on page 16.
1. Unpack the R&S SMB carefully.
2. Retain the original packing material. Use it to protect the control elements and con-
nectors when transporting or shipping the R&S SMB later.
See also chapter "Transporting" in the operating manual.
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.
4.3 Choosing the Operating Site
Specific operating conditions ensure proper operation and avoid damage to the product and connected devices. For information on environmental conditions such as ambient temperature and humidity, see the data sheet.
See also "Choosing the operating site" on page 8.
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
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R&S®SMB100A
4.4 Setting Up the R&S SMB
4.4.1 Placing the R&S SMB on a Bench Top
Preparing for Use
Setting Up the R&S SMB
●
Class A equipment is intended for use in industrial environments. It can cause
radio disturbances in residential environments due to possible conducted and radiated disturbances. It is therefore not suitable for class B environments.
If class A equipment causes radio disturbances, take appropriate measures to
eliminate them.
See also:
●
"Setting up the product" on page 8
●
"Intended use" on page 7
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.
CAUTION! Foldable feet can collapse. See "Setting up the product" on page 8.
2.
Always fold the feet completely in or out. With folded-out feet, do not place anything on top or underneath the product.
WARNING! A stack of products can fall over and cause injury. Never stack more
3.
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).
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R&S®SMB100A
Preparing for Use
Setting Up the R&S
Left = Stacked correctly, same dimensions
Middle = Stacked correctly, different dimensions
Right = Stacked incorrectly, too many products
NOTICE! Overheating can damage the product.
4.
Prevent overheating as follows:
● Keep a minimum distance of 10 cm between the fan openings of the product
and any object in the vicinity.
● Do not place the product next to heat-generating equipment such as radiators
or other products.
SMB
4.4.2 Mounting the R&S SMB in a Rack
To prepare the rack
1. Observe the requirements and instructions in "Setting up the product" on page 8.
NOTICE! Insufficient airflow can cause overheating and damage the product.
2.
Design and implement an efficient ventilation concept for the rack.
To mount the R&S SMB in a rack
1. Use an adapter kit that fits the dimensions of the R&S SMB to prepare the instru-
ment for rack mounting.
a) Order the rack adapter kit designed for the R&S SMB. For the order number,
see the data sheet.
b) Mount the adapter kit. Follow the assembly instructions provided with the
adapter kit.
2. Lift the R&S SMB to shelf height.
3. Push the R&S SMB onto the shelf until the rack brackets fit closely to the rack.
4. Tighten all screws at the rack brackets with a tightening torque of 1.2 Nm to secure
the R&S SMB in the rack.
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R&S®SMB100A
4.5 Considerations for Test Setup
Preparing for Use
Considerations for Test Setup
To unmount the R&S SMB from a rack
1. Loosen the screws at the rack brackets.
2. Remove the R&S SMB from the rack.
3. If placing the R&S SMB on a bench top again, unmount the adapter kit from the
R&S SMB. Follow the instructions provided with the adapter kit.
Cable selection and electromagnetic interference (EMI)
Electromagnetic interference (EMI) can affect the measurement results.
To suppress electromagnetic radiation during operation:
●
Use high-quality shielded cables, especially for the following connector types:
– BNC
Double-shielded BNC cables.
How to: "To connect to non-screwable connectors (BNC)" on page 20
– USB
Double-shielded USB cables.
How to: Chapter 4.9, "Connecting USB Devices", on page 19.
See chapter "Troubleshooting and Error Messages > Measuring USB Cable
Quality" in the operating manual.
– LAN
At least CAT6 STP cables.
How to: Chapter 4.7, "Connecting to LAN", on page 18
●
Always terminate open cable ends.
●
Ensure that connected external devices comply with EMC regulations.
Signal input and output levels
Information on signal levels is provided in the data sheet. Keep the signal levels within
the specified ranges to avoid damage to the R&S SMB and connected devices.
Preventing electrostatic discharge (ESD)
Electrostatic discharge is most likely to occur when you connect or disconnect a DUT.
NOTICE! Electrostatic discharge can damage the electronic components of the
►
product and the device under test (DUT).
Ground yourself to prevent electrostatic discharge damage:
a) Use a wrist strap and cord to connect yourself to ground.
b) Use a conductive floor mat and heel strap combination.
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R&S®SMB100A
4.6 Connecting to Power
Preparing for Use
Connecting to LAN
For safety information, see "Connecting to power" on page 8.
If there were any problems duirng power on, check the condition of the mains fuses as
described under "Maintenance, Storage and Disposal > Changing Fuses" in the operating manual.
To connect the R&S SMB to power:
1. Plug the AC power cable into the AC power connector at the rear panel of the
instrument. Only use the AC power cable delivered with the R&S SMB.
2. Plug the AC power cable into a power outlet with ground contact.
The required ratings are listed next to the AC power connector and in the data
sheet.
4.7 Connecting to LAN
Network environment
Before connecting the product to a local area network (LAN), consider the following:
●
Install the latest firmware to reduce security risks.
●
For internet or remote access, use secured connections if applicable.
●
Ensure that the network settings comply with the security policies of your company.
Contact your local system administrator or IT department before connecting your
product to your company LAN.
●
When connected to the LAN, the product may potentially be accessed from the
internet, which may be a security risk. For example, attackers might misuse or
damage the product.
To connect to LAN
The "LAN" connector is at the rear panel.
► Connect the LAN socket with an RJ-45 cable to the LAN.
By default, the R&S SMB is configured to use DHCP (dynamic host configuration protocol) and no static IP address is configured.
If switched on and connected to the LAN, you can find the address information in the
network settings dialog.
See "Instrument Function > General Instrument Settings > General Configuration of
Instrument - Setup Key > Network Settings" in the operating manual.
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4.8 Connecting to IEC 625/IEEE 488 (GPIB)
Preparing for Use
Connecting USB Devices
To connect to the IEC 625/IEEE 488 interface
You can use the GPIB bus interface for controlling the instrument remotely. The "IEC
625/IEEE 488" connector is at the rear panel.
1. Connect the "IEC 625/IEEE 488" socket to the controller PC with a double-shielded
GPIB bus interface cable.
2. Configure the settings for remote control over GPIB.
The controller must address the instrument with the GPIB bus address.
For details, refer to "Remote Control Basics > Remote Control Interfaces and Protocols > GPIB Interface (IEC/IEEE Bus Interface" and "Hardware Interfaces" in the
operating manual.
4.9 Connecting USB Devices
You can connect or disconnect USB devices, e.g., memory stick, a CD-ROM keyboard,
etc, with the R&S SMB during operation.
To connect a USB device to the interface of the R&S SMB, always use the USB type A
connector t the rear panel. Refer to the documentation of the USB device to find out
which USB connector type you can connect to the USB device.
To connect USB storage devices
USB storage devices, such as memory sticks, allow easy data transfer from/to the
R&S SMB. You can also use them for firmware updates.
► Connect the USB storage device to the USB type A connector at the rear panel.
To connect USB devices with external power supply
NOTICE! Connected devices with external power supply can feed back current into
1.
the 5 V power supply of the USB interface and thus damage the R&S SMB.
Ensure that there is no connection between the positive pole of the power supply
and the +5 V power pin of the USB interface (VBUS).
2. Connect the USB storage device to the USB type A connector at the rear panel.
To connect a keyboard
► Connect the keyboard to the USB type A connector at the rear panel.
When connected, the R&S SMB detects the keyboard automatically. A detected
keyboard has the default layout English – US.
Use the "Setup > Keyboard Settings" dialog to configure the keyboard properties.
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R&S®SMB100A
Preparing for Use
Connecting to RF
To connect a mouse
► Connect the keyboard to the USB type A connector at the rear panel.
When connected, the R&S SMB detects the mouse automatically.
To connect power sensors
You can also connect power sensors of the R&S NRP series either directly at the USB
interface, or using an USB hub, e.g. R&S NRP-Z5 with several connected power sensors.
For sensors with network capabilitiy, you can use the LAN interface, see
► To connect a power senor to the USB type A connector, you have several options:
● Connect the sensor to the USB type A connector
If necessary, use an adapter cable, e.g. R&S NRP-Z3 or R&S NRP-Z4
● Connect several sensors to an USB hub, and the hub to the R&S SMB.
See chapter "RF Measurement" in the operating manual.
4.10 Connecting to RF
The "RF" connector is at the front panel.
To prepare for connecting to RF
NOTICE! Damaged or not clean connections can lead to RF insertion loss and mis-
1.
match, and even premature wear of the connectors.
Before connecting to the port, inspect the RF connector visually to check that it is
clean, undamaged and mechanically compatible.
See the application note 1MA99 for information on how to handle and maintain the
RF port, to minimize measurement deviations and ensure its longevity.
NOTICE! Risk of instrument damage. Excessive reverse power or DC voltage at
2.
the RF connector can damage the instrument.
Make sure that the values do not exceed the reverse power and DC limits as given
in the data sheet.
3. If the R&S SMB is switched on, deactivate the RF output, before connecting an RF
cable to the RF connector.
In the home screen, select the block "Level" > "RF ON > Off".
To connect to non-screwable connectors (BNC)
1. Use a high-quality RF cable that matches the RF connector type.
See "Cable selection and electromagnetic interference (EMI)" on page 17.
2. To connect the RF cable with the RF connector, proceed as follows:
a) Carefully align the connector of the cable and the RF connector along a com-
mon axis.
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R&S®SMB100A
4.11 Connecting to Ref In/Ref Out
Preparing for Use
Switching On or Off
b) Mate the connectors along the common axis until the male pin of the connector
of the cable engages with the female socket of the RF connector.
If your instrument is equipped with a test port adapter, see the application note
1MA100.
See "RF 50 Ohm" on page 48.
To prevent RF output switch-off
NOTICE! If you set a too high output level without a load connected to the instru-
►
ment, the reverse power can exceed a limit forcing the R&S SMB to switch off the
RF output.
Connect a load with sufficient return loss as given in the data sheet.
The connector is at the rear panel.
To connect to Ref In/Ref Out
For connection, the R&S SMB provides BNC connectors.
► Follow the instructions in "To connect to non-screwable connectors (BNC)"
on page 20.
4.12 Switching On or Off
The following table provides an overview of power states, LEDs and power switch positions.
Table 4-1: Overview of power states
State LED Position of power switch
Off
Standby
Ready
gray
yellow
green
[0]
[I]
[I]
To switch on the R&S SMB
The R&S SMB is off but connected to power. See Chapter 4.6, "Connecting to Power",
on page 18.
1. Set the switch on the power supply to position [I].
The switch is at the rear panel.
The LED of the [ON/STANDBY] key is yellow.
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R&S®SMB100A
Preparing for Use
Switching On or Off
2. Wait until the oven-controlled oscillator (OCXO) warms up. For the warm-up time,
see data sheet.
3. Press the [ON/STANDBY] key at the front panel.
The LED changes to green. The R&S SMB boots.
When starting for the first time, the R&S SMB starts with the default settings. When
restarting the instrument, the settings depend on the instrument configuration
before shut-down.
See the chapter "Storing and Loading Instrument Data - File Key" in the operating
manual.
When the instrument is switched on, it automatically monitors main functions.
A detected fault is indicated by an "ERROR" message displayed in the info line
together with a brief error description. For in-depth identification of the error, press the
[INFO] key. In response, a description of the error(s) is displayed. In addition to automatic monitoring, you can perform maintenance tasks.
See:
●
Chapter "Querying Error Messages" in the operating manual.
●
Chapter "Performing Maintenance Tasks" in the operating manual.
To reboot the instrument
If it is necessary to restart the instrument, e.g. if the firmware stops unexpectedly:
► Press the [STANDBY] key for approx. 5 s.
The R&S SMB reboots.
To shut down the product
The product is in the ready state.
► Press the [ON/STANDBY] key.
The operating system shuts down. The LED changes to yellow.
In the standby state, the power switch circuits and the OCXO are active. To deactivate
them, disconnect the instrument from the power supply.
To disconnect from power
The R&S SMB is in the standby state.
NOTICE! Risk of data loss. If you disconnect the product from power when it is in
1.
the ready state, you can lose settings and data. Shut it down first.
Set the toggle switch on the power supply to position [0].
The LED of the [ON/STANDBY] key is switched off.
2. Disconnect the R&S SMB from the power source.
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4.13 Default Settings
Preparing for Use
Default Settings
When the instrument is switched on, it is not the preset state that is active, but rather
the instrument state that was set before the instrument was switched off. It is also recomended that you use the [PRESET] key to return the instrument to its defined preset
state every time a new configuration is required or the current setup is not anymore relevant.
The R&S SMB offers a two-stage preset concept:
●
Preset the instrument to a predefined state
The [PRESET] key calls up a defined instrument setup. All parameters and switching states are preset (also those of inactive operating modes). The default instrument settings provide a reproducible initial basis for all other settings. However,
functions that concern the integration of the instrument into a measurement setup
are not changed, e.g. GPIB bus address or reference oscillator source settings.
●
Preset the instrument to its factory settings
The instrument can also be forced to load its default factory settings. To access the
corresponding dialog box, press the [SETUP] key and select the "Factory Preset".
For more information and an overview of the settings affected by the factory preset
function, see section "Factory Preset" in the Operating Manual.
Overview of the Most Important Preset States
The following list gives an overview of the presets for the most important generator settings. The other presets can be found in the preset tables of the individual menus and
the information accompanying the remote commands.
●
"RF frequency" = 1 GHz
●
"RF level" RF output switched off
●
"Level" = 30 dBm for instruments including an attenuator
"Level" = -5 dBm for instruments with no attenuator
●
"Offsets" = 0
●
"Modulations State" = Off
●
Uninterrupted level settings are switched off
"Level Attenuator Mode" = AUTO
●
Internal level control "Level ALC" = AUTO
●
User correction "Level Ucor" = OFF
●
"LF output State" = Off
●
"Sweep State" = Off
Settings that are not affected by the [PRESET] key
●
Reference frequency settings ("Ref Oscillator" menu)
●
Power on settings ("Level/EMF" menu)
●
Network settings ("Setup" menu)
●
GPIB address ("Setup" menu)
●
*IDN? Identification and emulation ("Setup" menu)
●
Password and settings protected by passwords ("Setup" menu)
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4.14 Working with Linux Operating System
Preparing for Use
Setting Up a Network (LAN) Connection
●
Start/Stop Display Update ("Setup" menu)
●
Display and keyboard settings ("Setup" menu)
User-defined instrument states can be stored and called up in the "File" dialog.
The instrument uses an embedded Linux operating system, optimally adapted to the
instrument.
Accessing the operating system
No access to the operating system is required for normal operation.
All necessary system settings can be made in the "Setup" dialog.
4.15 Setting Up a Network (LAN) Connection
The R&S SMB is equipped with a network interface and can be connected to an Ethernet LAN (local area network). Provided the appropriate rights have been assigned by
the network administrator and the Linux firewall configuration is adapted accordingly,
the interface can be used, for example:
●
To transfer data between a controller and the instrument, e.g. in order to run a
remote control program.
●
To access or control the measurement from a remote computer using the R&S
VISA or Ultr@VNC programs (or similar tools, like another VNC client or any Web
browser supporting Java)
●
To transfer data from a remote computer and back, e.g. using network folders
This section describes how to configure the LAN interface. It includes the following topics:
●
Chapter 4.7, "Connecting to LAN", on page 18
●
Chapter 4.15.1, "Assigning the IP Address", on page 24
4.15.1 Assigning the IP Address
Depending on the network capacities, the TCP/IP address information for the instrument can be obtained in different ways.
●
If the network supports dynamic TCP/IP configuration using the Dynamic Host
Configuration Protocol (DHCP), all address information can be assigned automatically.
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Setting Up a Network (LAN) Connection
●
If the network does not support DHCP, the instrument tries to obtain the IP address
via Zeroconf (APIPA) protocol. If this attempt does not succeed or if the instrument
is set to use alternate TCP/IP configuration, the addresses must be set manually.
By default, the instrument is configured to use dynamic TCP/IP configuration and
obtain all address information automatically. This means that it is safe to establish a
physical connection to the LAN without any previous instrument configuration.
Risk of network errors!
Connection errors can affect the entire network.
If your network does not support DHCP, or if you choose to disable dynamic TCP/IP
configuration, you must assign valid address information before connecting the instrument to the LAN.
Contact your network administrator to obtain a valid IP address.
Assigning the IP address on the instrument
1. Press the [Setup] key and select the "Network Settings" dialog.
2. Set the "Address Mode" to Static.
3. Select the "IP Address" and enter the IP address, for example 192.168.0.1..
The IP address consists of four number blocks separated by dots. Every block contains 3 numbers in maximum.
4. Select the "Subnet Mask" and enter the subnet mask, for example 255.255.255.0.
The subnet mask consists of four number blocks separated by dots. Every block
contains 3 numbers in maximum.
Use computer names to identify the instrument
In networks using a DHCP server, it is recommended that you address the instrument
by its unambiguous computer name, see Chapter 4.15.2, "Using Computer Names",
on page 26.
A computer name (hostname) is an unique dedicated identification of the instrument,
that remains permanent as long as it is not explicitly changed. Hence, you can address
an instrument by the same identification (computer name), irrespectively if a network or
a point-to-point connection is used.
To assign the IP address manually on the remote computer
► Obtain the necessary information from your network administrator. If you use more
than one LAN connector, you need separate address information for each connector.
For information on how to perform the configurations, refer to the documentation of
the operating system the remote computer uses.
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4.15.2 Using Computer Names
Preparing for Use
Remote Access via an External Controller
In a LAN that uses a DNS server (Domain Name System server), each PC or instrument connected in the LAN can be accessed via an unambiguous computer name
instead of the IP address. The DNS server translates the host name to the IP address.
This is especially useful when a DHCP server is used, as a new IP address may be
assigned each time the instrument is restarted.
Each instrument is delivered with an assigned computer name, but this name can be
changed.
The default instrument name is a non-case-sensitive string that follows the syntax
rs<instrument><serial number>.
The serial number can be found on the rear panel of the instrument. It is the third part
of the device ID printed on the bar code sticker:
Querying and changing a computer name
1. Press the "Setup" key and select "Network Settings".
The computer name is displayed under "Hostname".
2. Press the "Setup" key, select "Protection" and enable the "Protection Level 1".
The default password is 123456.
The parameter "Hostname" in the "Network Settings" dialog is now enabled for
configuration.
3. Change the "Hostname".
4.16 Remote Access via an External Controller
The R&S SMB can be remote accessed from a remote computer (external controller)
via a network link. This allows convenient operation of the instrument from the desktop
although the instrument is integrated in a rack somewhere else.
For an overview of the instrument's operating concept and the different ways to control
and operate the instrument, see Chapter 7, "System Overview", on page 58.
There are different ways to establish a remote access connection to the signal generator but all of them require an established LAN connection between the instrument and
the remote computer. The simplest way to remote access the instrument is to use a
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Remote Access via an External Controller
Web browser, such as Windows Internet Explorer or Mozilla Firefox for instance. Alternatively a remote access via a special application can be used.
For example, the free-of-charge program Ultr@VNC for PCs with Linux/Unix or Windows operating system is available for setting up the remote access connection. Using
this application requires additional installation.
See the following table for an overview of the different ways to establish a remote
access connection to the signal generator.
Table 4-2: Remote access via an external computer
Remote access via
Any web browser
for example Windows Internet Explorer or Mozilla Firefox,
see Chapter 4.16.1, "Using a Web Browser for Remote
Access", on page 28
Web browser with HTML5
for example LXI Browser, see Chapter 4.17.2.4, "Web
Control", on page 39
VNC Client
for example Ultr@VNC or other dedicated client software
for PCs with Linux/Unix or Windows operating system
see Chapter 4.16.2, "Remote Access via a VNC Client
Software", on page 29
LAN
connec-
tion
required no Java Runtime must
required no Web sockets must
required required VNC Viewer
Installation of the additional
application
on the
instrument
on the remote
computer
be installed and
activated in the
browser settings.
be supported.
required
When the connection is set up with a VNC client software (Ultr@VNC), direct control
on the instrument is possible while remote access is established.
For return to direct operation on the instrument, the connection must be cut. After cutting the connection, it is still enabled and can be established again any time. The connection is disabled only after deactivation of the program.
This section gives an information on how to use the Web browser for remote access,
how to install the applications for remote access and how to establish the connection
between the instrument and an external computer with Windows operating system.
Remote access via an external computer with Linux/Unix operating system is performed accordingly.
Default password
Remote-access and file access require the user "instrument" with default password
"instrument".
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4.16.1 Using a Web Browser for Remote Access
Preparing for Use
Remote Access via an External Controller
Changing the default user and security passwords
It is highly recommended to change the default user and security passwords in the
menu "Setup > Security" before connecting the instrument to the network (see section
"Security - Setup-Protection" in chapter "General Instrument Settings" of the Operating
Manual).
The instrument can be remote-accessed via any web browser, as for example the Windows Internet Explorer or Mozilla Firefox.
Alternatively, you can also make use of the LXI browser, as described in Chap-
ter 4.17.2.4, "Web Control", on page 39.
To remote access the instrument via a web browser:
1. Connect the instrument and the remote computer to a LAN, seeChapter 4.7, "Con-
necting to LAN", on page 18 .
2. Instal the Java Runtime Environment JRE on the remote computer.
3. Type the instruments' IP address in the address field of the Web browser on your
PC, e.g. http://10.111.11.1
The "VNC Authentication" screen appears.
4. Enter the password and select "OK".
The default password is "instrument".
After the connection is established, the current signal generator screen with the
block diagram is displayed and the instrument can be remote-accessed from the
remote computer.
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4.16.2 Remote Access via a VNC Client Software
Preparing for Use
Remote Access via an External Controller
A VNC client software is an application which can be used to access and control the
instrument from a remote computer via LAN.
The following description explains how to establish the remote access, represented by
means of the client software Ultr@VNC. The software is included in Linux/Unix operating system, but it is also available as a free-of-charge download on the Internet http://
www.uvnc.com/download/index.html. Thus, it is also available for remote computers
with Windows operating system.
The GUI appearance of Ultr@VNC may vary if you use a later release. Also, similar
programs may deviate in some details, but the basic procedure is the same.
Risk of unauthorized access
If the VNC service is enabled on the instrument, any user in the network who knows
the computer name and password can access it.
Disable the VNC service on the instrument to prevent unauthorized access.
Setting up a VNC connection
1. Connect the instrument and the remote computer to a LAN, see Chapter 4.7, "Con-
necting to LAN", on page 18 .
2. Install the Ultr@VNC application and enable it on the instrument.
3. In the ICF firewall, enable communication on the network via Ultr@VNC program.
4. Install the VNC Viewer on the remote computer with Windows operating system,
see "Installing the VNC Viewer on a Windows PC" on page 31.
5. Set up the VNC connection between the instrument and:
a) the remote computer with Linux/Unix operating system, see "Setting up the
VNC connection on the Linux/Unix remote computer" on page 31;
b) the remote computer with Windows operating system, see "Setting up the VNC
connection on the Windows remote computer" on page 32.
Enabled Direct Control
The direct control of the instrument is not disabled and the instrument can be controlled from the front panel and via the remote computer alternately.
Installing the Ultr@VNC application
1. Download the program from the internet and copy it to a directory that can be
accessed.
2. On the instrument, shut down firmware using the ALT+F4 key combination.
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Remote Access via an External Controller
3. Double click on the setup file to start the installation.
The setup wizard leads through the installation. This description focus only on the
relevant settings.
a) Select installation of all components.
b) In the "Additional Task Panel", enable all entries.
A successful installation is indicated by a message.
At the same time a warning is displayed stating that a password must be set.
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Remote Access via an External Controller
4. Select "OK".
The "Default Local System Properties" panel opens.
5. Enter a password with a length of at least five digits.
This password is used on the remote computer to access the instrument. Other
settings may be changed according to the user-specific security requirements.
After the installation the Ultr@VNC program is automatically started together with
the operating system. On mouse over, the IP address of the instrument is indicated.
This IP address and the user-defined password are the prerequisites to enable
remote access on the remote computer. Terminated connection is indicated by
changed icon color.
Installing the VNC Viewer on a Windows PC
1. Download the Ultr@VNC program form internet and follow the installation instructions.
Only the program component VNC Viewer is required.
Note: The VNC Viewer program is included in the download for the installation of
the Ultr@VNC program on the signal generator if "Full installation" was selected in
the "Select Component" panel. In this case, the program ultr@vncviewer.exe
can be copied to the Windows PC.
2. Install VNC Viewer program component on the remote computer.
Setting up the VNC connection on the Linux/Unix remote computer
The VNC program is available per default for Linux/Unix operating systems.
1. Start a Web browser on the remote computer and enter the IP address of the
instrument.
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Remote Access via an External Controller
2. Enter the following address:
vnc://<IP-address of the instrument>, e.g. vnc://192.168.1.1.
A dialog is opened and the password for the remote VNC connection is requested.
3. Enter the password as defined in the "Default Local System Properties" panel of
the Ultr@VNC program and select "Log On".
The connection is established, the instrument is remote accessed and the current
signal generator screen with the block diagram is displayed. The individual functions are operated using the mouse and keyboard.
In contrast to remote access via Remote Desktop, the direct control of the instrument is not disabled and the instrument can be controlled from the front panel and
via the remote computer alternately.
Setting up the VNC connection on the Windows remote computer
1. Start VNC Viewer program component on the PC, select "VNC Server" and enter
IP address of the instrument.
2. To initialize the connection, select "Connect".
A message requesting the password appears.
3. Enter the password as defined in the "Default Local System Properties" panel of
the Ultr@VNC program and select "Log On".
The connection is established, the instrument is remote accessed and the current
signal generator screen with the block diagram is displayed. The individual functions are operated using the mouse and keyboard.
Enabled Direct Control
The direct control of the instrument is not disabled and the instrument can be controlled from the front panel and via the remote computer alternately.
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LXI Configuration
Terminating VNC Connection
The remote access via VNC connection can be terminated either on the R&S SMB or
on the external PC. Terminating the connection does not disable it. It can be established again any time. See the notice above concerning unauthorized access due to
VNC connection!
1. Terminate the connection on the R&S SMB
a) Press the "Windows" key to access the operating system.
b) Right-click on the VNC icon on the task bar and select "Kill all clients".
2. To terminate the connection on the external Linux/Unix PC, close the internet
browser or close the signal generator window.
3. To terminate the connection on the external Windows PC, close the VNC Viewer
program.
The connection is terminated. The color of the VNC icon in the status bar of the
instrument changes.
A message on the external PC indicates the disconnection.
Disabling Remote Access via Ultr@VNC
The VNC connection can be disabled by removing the program on the instrument or by
deactivating the VNC Server service.
1. Remove the VNC program
a) Press the "Windows" key to access the operating system and open the "Add or
Remove Programs" by selecting "Start > Settings > Control Panel > Add or
Remove Programs".
b) Remove the VNC program.
2. Deactivate the VNC Server service
a) Press the "Windows" key to access the operating system and open the "Ser-
vices" by selecting "Start > Settings > Control Panel > Services".
b) Deactivate the VNC Server service.
The connection is disabled, the VNC icon disappears from the task bar of the
instrument.
4.17 LXI Configuration
LXI ("LAN eXtensions for Instrumentation" is an instrumentation platform for measuring
instruments and test systems that is based on standard Ethernet technology. LXI is
intended to be the LAN-based successor to GPIB, combining the advantages of Ethernet with the simplicity and familiarity of GPIB.
Like GPIB, LXI determines and standardizes the way the instrument behaves in a LAN.
The LXI implementation by the Rohde&Schwarz signal generators allows you to
change certain LAN settings, to reset the LAN connection as well as to identify the
instrument easily.
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LXI Configuration
For information about the LXI standard, refer to the LXI website at http://www.lxistan-
dard.org. See also "News from Rohde & Schwarz, article 2006/II - 190".
The R&S SMB provides an integrated "LXI Status" dialog for LXI status indication and
reset of the LAN configuration ("LAN Configuration Initialize", LCI). To access the LXI
status dialog, press the [Setup] key and select "Remote > LXI Status".
For further information, see section "LXI Status" in the Operating Manual.
Firmware update
After a firmware update, shut down and restart the instrument in order to enable the full
LXI functionality.
Default state of the network settings
According to the LXI standard, an LCI must set the following parameters to a default
state.
Parameter Value
TCP/IP Mode DHCP + Auto IP Address
Dynamic DNS Enabled
ICMP Ping Enabled
Password for LAN configuration LxiWebIfc
The LCI for the R&S SMB also resets the following parameters:
Parameter Value
Hostname <Instrument-specific host name>
Description Vector Signal Generator
Negotiation Auto Detect
VXI-11 Discovery Enabled
The LAN settings are configured using the instrument's "LXI Browser Interface".
4.17.1 LXI Browser Settings
To access the instrument via the web browser:
► Type in the instrument's host name or IP address in the address field of the
browser on your PC, for example "http://10.113.1.205".
Note: Do not add the missing zeros in the IP address, while opening the instrument home page.
The instrument home page (welcome page) opens.
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The navigation pane of the browser interface contains the following elements:
●
"LXI"
– "Home" opens the instrument home page.
The home page displays the device information required by the LXI standard,
including the VISA resource string in read-only format.
– "Device Indicator" activates or deactivates the LXI status indication.
When activated, the LXI LEDs flash, both in the browser dialog and in the LXI
dialog of the connected instrument. A green LXI status symbol indicates that a
LAN connection has been established; a red symbol indicates that no LAN
cable is connected.
– "Lan Configuration" allows you to configure LAN parameters and to initiate a
ping, see Chapter 4.17.2.3, "Ping Client", on page 38.
– "Status" displays information about the LXI status of the instrument.
– "Utilities" provides access to the LXI event log functionality required by the LXI
standard.
●
"Instrument Control"
– "Web Control" provides remote access to the instrument, see Chapter 4.17.2.4,
"Web Control", on page 39.
●
"Diagnostics"
– "SCPI Remote Trace" records messages exchanged via the remote control
interface, see Chapter 4.17.2.5, "SCPI Remote Trace", on page 40.
●
"Help"
– "Glossary" explains terms related to the LXI standard.
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4.17.2 LAN Configuration
Preparing for Use
LXI Configuration
– www.rohde-schwarz.com opens the Rohde & Schwarz home page.
► Press the "INACTIVE (press to toggle)" button to activate the connection.
A green flashing status LED indicates the active connection. If the LAN connection
fails, the LED turns red.
The status of the LAN connection is also indicated by the "LAN Status indicator" in
the "LXI Status" dialog.
For further information, see section "LXI Status" in the Operating Manual.
The "LAN Configuration" web page provides access to the parameters required for
identifying the R&S SMB in the network, and allows modification.
Password protection
Changing the LAN configuration is password-protected. The default password is LxiWebIfc (notice upper and lower case characters). This password cannot be changed in
the current firmware version.
It comprises the following navigation entries.
● IP Configuration...................................................................................................... 36
● Advanced LAN Configuration..................................................................................37
● Ping Client...............................................................................................................38
● Web Control............................................................................................................ 39
● SCPI Remote Trace................................................................................................40
4.17.2.1 IP Configuration
The "IP Configuration" page displays all mandatory LAN parameters.
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The "IP Address Mode" selects a configuration mode for the IP address of the
R&S SMB. With static configuration, the entered IP address, subnet mask, and default
gateway are used. With dynamic configuration, DHCP or dynamic link local addressing
(automatic IP) are used to obtain the instrument IP address.
See Chapter 4.15.1, "Assigning the IP Address", on page 24.
4.17.2.2 Advanced LAN Configuration
The "Advanced Config" page provides LAN settings that are not declared mandatory
by the LXI standard.
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The following advanced parameters are available:
●
"mDNS and DNS-SD": The additional protocols "multicast DNS" and "DNS service
discovery" are used for device communication in zero configuration networks,
working without DNS and DHCP.
●
"ICMP Ping enabled": Must be enabled to use the ping utility.
If you disable this setting, the instrument does not answer ping requests. The setting does not affect the LXI ping client. You can ping other hosts from the instrument, even if the setting is disabled.
●
"VXI-11 Discovery": Must be enabled to detect the instrument in the LAN.
If you disable this setting, the instrument cannot be detected by the VXI-11 discovery protocol mechanism. The setting does not affect other detection mechanisms.
Setting up a VXI-11 connection via the IP address or the host name is independent
of this setting.
4.17.2.3 Ping Client
The "Ping Client" page provides the ping utility to verify the connection between the
LXI-compliant instrument and another device.
The ping is initiated from the instrument. Using the ICMP echo request and echo reply
packets, the function checks whether the communication with a device via LAN works.
Ping is useful for the diagnosis of IP network or router failures.
The ping utility is not password-protected.
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LXI Configuration
To initiate a ping from the instrument to the device:
1. Enable "ICMP Ping" on the "Advanced LAN Configuration" page.
2. Select the "Ping Client" page.
3. In the "Destination Address" field, enter the IP address of the device you want to
ping (without the ping command and without any further parameters), e.g.
10.113.1.203.
4. Select "Submit".
4.17.2.4 Web Control
The web control functionality provides remote operation via VNC using a Web browser
(with HTML5). This mode does not require additional installation or activation. The
VNC protocol allows simultaneous operation from several remote devices. The instrument remains locally operable.
The GUI of the R&S SMB is visible. To perform the settings, you can operate the
instrument as with the manual control. The instrument controls are available via the
front panel simulation. File upload and download between the instrument and the
remote PC is also available.
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Starting a Remote Control via the LXI web browser
This section assumes that the instrument and the controller PC are connected in the
LAN.
1. Start a web browser that supports html5 (W3C compliant).
2. Enter the IP address of the R&S SMB in the browser's address bar.
The R&S SMB's welcome page is displayed.
3. In the navigation pane, select "Instrument Control" > "Web Control".
Remote access to the instrument requires the password. The default password is
instrument.
4. Enter the password.
5. Confirm with the [Enter] key.
After the connection is established, the current screen of the R&S SMB is displayed in the browser window.
6. Use the mouse cursor and keyboard to access the functionality of the instrument
as you would directly perform the settings on the instruments front panel.
4.17.2.5 SCPI Remote Trace
The remote trace functionality allows you to trace input and output strings at the
remote control interface of the R&S SMB.
A recorded trace (message log) can be evaluated directly in the dialog. Use the highlighting and navigation functions provided in the lower toolbar to locate error messages
and messages containing arbitrary search strings. You can also export the message
log to a *.csv file and evaluate the file using a suitable program.
To trace and display messages:
1. In the navigation pane, select "Diagnostics" > "SCPI Remote Trace".
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2. In the toolbar bar of the "SCPI Remote Trace" page, select "live mode" > "on" and
"logging" > "on".
"live mode > on" displays all commands and responses, and "logging > on" also
traces messages.
3. If you now control the R&S SMB with SCPI commands, using an appropriate tool,
the SCPI remote trace records the information sent and received.
The function records all sent commands, received responses and messages, and
stores them in an internal database. If "live mode" is disabled, you can display the
recent traces upon request, using the "refresh" button. You can also store the log in
a file.
Note: The diagnostics functionality is extended in later releases, e.g. to download
or upload SCPI command files from / to the instrument.
Toolbars
The toolbar at the top of the dialog provides basic settings and functions.
●
"Live mode" / "logging": If logging is switched on, messages are traced. They are
stored in an internal database and can be displayed upon request, using the
refresh button (live mode off) or they can be displayed automatically (live mode
on).
●
"Filter": applies a filter to columns and/or rows when working (live mode off)
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●
"Refresh": reads the message log from the internal database and displays it
●
"Download": stores the SCPI trace log to a *.csv file
●
"Clear": deletes all message log entries in the database and on the screen
●
"Details": displays details of the selected message, for example an SCPI command
in hex format (also possible by double\-clicking a message)
Columns
The following columns are available if no column filter is applied:
●
"Rec": record number of the message within the message log
●
I: number of the subinstrument
●
"MT": indicates the type of the message. Possible values and related message
contents are:
– > = incoming command
– < = outgoing response to a query
– E = error message, highlighted by red color
– T = execution time, i.e. time required by the instrument to process the com-
mand internally
●
"message": indicates the type of the message. Possible values and related message contents are:
– > = incoming command
– < = outgoing response to a query
– E = error message, denoted in red
– T = execution time, i.e. time required by the instrument to process the com-
mand internally
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R&S®SMB100A
5 Instrument Tour
5.1 Front Panel Tour
Instrument Tour
Front Panel Tour
The front panel of the R&S SMB consists of the VGA display, some utility keys (left
side) and the hardkey area with connectors and control interfaces (right side). The subsequent sections provide brief explanations on the controls and connectors, the hardkey area and the front panel.
For more detailed information, refer to the corresponding description in the Operating
Manual.
Figure 5-1: Front panel view
5.1.1 Utility Keys
The keys to the left of the display cause the R&S SMB to return to a definite instrument
state and provide information on the instrument and assistance.
For more information refer to chapter "Instrument Settings" in the Operating Manual.
[PRESET]
Sets the instrument to a defined state (see Chapter 4.13, "Default Settings",
on page 23).
[LOCAL]
Switches from remote control to local (manual) control.
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5.1.2 Standby LEDs and Standby Key
Instrument Tour
Front Panel Tour
[SETUP]
Opens the "Setup" dialog for configuring presettings.
[File]
Activates the menu for storing or loading files (see Chapter 8.1.8, "File Management",
on page 83).
INFO
Displays status messages, error messages and warnings.
[WINBAR]
Toggles between the diagram and active menus.
[HELP]
Displays context-sensitive help text.
The standby LEDs and the [ON/STANDBY] key are located in the bottom left corner of
the front panel.
The [ON/STANDBY] key toggles the instrument between standby and ready state (indicated by the standby LEDs).
The standby LEDs indicate the instrument states as follow:
●
the green LED (left) is on when the instrument is ready for operation,
●
the yellow LED (right) is on in the standby mode.
See Table 4-1.
5.1.3 Display
The display clearly shows all main settings and signal generator states.
The display is divided into the following sections:
●
Frequency and level display with info line
– Frequency and level settings containing offset.
– Status messages
– Brief error messages.
To access an window with detailed information for a message, use the [INFO]
key.
●
Block diagram
The block diagram shows the current configuration and the signal flow in the generator with the aid of function blocks containing an on/off switch. Selecting a function block opens a list of associated setting menus. Active menus, info windows
and graphs are displayed on top of the block diagram. The block diagram can be
displayed in the foreground anytime with the [DIAGRAM] key.
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5.1.4 Setup Keys
5.1.4.1 Keys for Setting Parameters
Instrument Tour
Front Panel Tour
For detailed information, see Chapter 8.1.3, "Display", on page 67.
The keys to the right of the display set parameters, select views and control the windows.
These keys provide direct access to the settings in the header of the instrument for fast
setting the RF signal.
For more information refer to chapter "Instrument Functions" in the Operating Manual.
[FREQ]
Activates frequency entry.
[LEVEL]
Activates level entry.
[ ON/OFF TOGGLE]
●
Switches highlighted elements or a function block on and off.
●
Switches between two or more settings, e.g. items of selection lists. At the end of a
list, the cursor is set on the first entry again.
[BACKSPACE]
Deletes the character to the left of the cursor.
5.1.4.2 Display Keys
The keys assigned right to rotary knob arrange different windows on the display, and
turn the RF signal and the modulation on and off.
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Instrument Tour
Front Panel Tour
[DIAGRAM]
Brings the block diagram to the foreground. Active menus are minimized.
[ESC]
The function of this key depends on the current cursor position.
●
Calls the next higher selection level.
●
Closes the open window without accepting new entries; the old value or parameter
is retained.
●
In dialog boxes that contain a "Cancel" button it activates that button.
●
Closes all kinds of dialog boxes, if the edit mode is not active.
●
Quits the edit mode, if the edit mode is active.
●
Switches between different entry fields of a menu.
●
Shifts the entry cursor from the header display to the previously active menu, or to
the previously highlighted block in the block diagram if no menu is active.
[MOD ON/OFF]
Switches the modulations on and off.
"MOD OFF" is displayed in the info line of the header next to the "Level" field.
[RF ON/OFF]
Switches the RF signal on and off.
"RF OFF" is displayed in the header next to the "Frequency" field.
5.1.5 Keypad for data entry
The keys in the data entry keypad are used to enter alphanumeric data and units.
Data entry keys are only enabled while the cursor is placed on a data input field in a
dialog. Their function depends on the data type of the input field.
Keys Description
0...9/abc Enters the corresponding numbers (in numeric input fields) or characters (character input
fields).
. Inserts a decimal point (numeric input fields) or dot (character input fields) at the cursor
position. Multiple decimal points are not allowed.
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Instrument Tour
Front Panel Tour
Keys Description
Unit keys Selects a unit and thus determine the absolute value, or changes the unit, i.e. trigger a
recalculation without changing the absolute value. The function depends on the time at
which the [Unit] key is used during parameter entry (see Chapter 8.1.5.5, "Working with
Units", on page 77).
For unit-free values, the [x1] key is equivalent to [ENTER]. It confirms the previous entry
and deactivates the input field.
_ Adds a blank in a character input field.
*... # Enters special characters. Toggles through the available characters if the key is pressed
several times in a row.
A <-> a Toggles between uppercase and lowercase characters.
A, B, C, D,
E, F
Enters hexadecimal values. The letters assigned to the keys are automatically active when
an entry field with a hexadecimal value is active.
[ENTER]
Pressing the rotary knob has the same effect.
●
Concludes the entry of dimensionless entries. For other entries, this key can be
used instead of the default unit key. The new value is accepted.
●
Confirms ("OK") and closes open input windows.
●
In a dialog box, selects the default or focused button.
●
In a dialog box, activates the edit mode for the focused area, if available.
●
In a dialog box, activates or deactivates the selected option of the focused area, if
the edit mode is active.
●
Calls the next menu level.
5.1.6 Rotary Knob and Navigation Keys
The rotary knob and the arrow keys are alternative control elements for data variation
and navigation in the graphical user interface.
[Rotary Knob]
The rotary knob has several functions:
●
Increases (clockwise direction) or decreases (counter-clockwise direction) numeric
values at a defined step width in editing mode
●
Moves the cursor, e.g. to a function block in the block diagram
●
Scrolls within lists, tables or tree views
●
Acts like the [ENTER] key, when it is pressed.
●
Shifts the selection bar within focused areas (e.g. lists), if the edit mode is activated.
Note: Turning or pressing the rotary knob is equivalent to pressing the [Up] and [Down]
keys or the [ENTER] key in the keypad.
[Navigation Keys]
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5.1.7 Front Panel Connectors
Instrument Tour
Front Panel Tour
The navigation keys consist of 4 arrow keys which are used for navigation, alternatively
to the rotary knob.
[UP/ DOWN
Keys]
[LEFT/ RIGHT
Keys]
The RF and LF output connectors and a connector for external modulation signals are
located on the front panel.
MOD EXT
The up and down arrow keys do the following:
●
In a numeric edit dialog box, increase or decrease the instrument
parameter.
●
In a list, table, window or dialog box, scroll vertically.
The left and right arrow keys do the following:
●
In an alphanumeric edit dialog box, move the cursor forward and
back.
●
In a list, table, window or dialog box, scroll horizontally.
Input for external modulation signals.
[LF]
Output for internal LF modulation generator signal.
See also data sheet and Operating Manual, section "LF Generator and LF Output".
RF 50 Ohm
Output for RF signal.
NOTICE! Maximum Input Levels. Do not overload the RF output.
The instrument is equipped with a reverse power protection that prevents the RF output against back feed, see section "Reverse Power Protection" in the operating manual. However, the maximum permissible reverse power is specified in the data sheet.
Depending on the equipped frequency option, the RF output connectors vary.
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Instrument Tour
Rear Panel Tour
RF Option
Frequency options Connector
R&S SMB- B101
R&S SMB-B102
R&S SMB-B103
R&S SMB-B106
type
N female
Microwave Option
Frequency options Connector
R&S SMB-B112/-112L
R&S SMB-B120/-B120L
R&S SMB-B131
R&S SMB-B140/-140L/-B140N
type
test port
adapter, PC 3.5
mm female
test port
adapter, PC
2.92 mm female
NOTICE! Risk of RF connector and cable damage. If you tighten the connectors too
strongly, you can damage the cables and connectors. If you do not tighten the connectors enough, the measurement results can be inaccurate.
Always use an appropriate torque wrench suitable for this type of connector and apply
the torque specified in the application note 1MA99.
The application notes are available on the Internet and provide additional information
on care and handling of RF connectors.
Rohde & Schwarz offers appropriate torque wrenches for various connectors. For
ordering information, see the R&S SMB data sheet or product brochure.
5.2 Rear Panel Tour
This section gives an overview of connectors on the rear panel of the instrument. Each
connector is briefly described and a reference is given to the chapters containing
detailed information. For technical data of the connectors refer to the data sheet.
For more detailed information, refer to the corresponding description in the Operating
Manual.
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5.2.1 Description of the Connectors
Instrument Tour
Rear Panel Tour
Figure 5-2: Rear panel view
[Fuses]
The R&S SMB is fully fused by two fuses IEC60127-T3.15H/250 V.
The fuses are accommodated in the fuse holders next to the power connector. Use
only fuses of the mentioned type.
[AC supply and power switch]
When the R&S SMB is connected to the AC supply, it automatically sets itself to the
correct range for the applied voltage (range: see type label). There is no need to set
the voltage manually or change fuses.
The power switch can be set to two positions:
●
0
The instrument is disconnected from the mains.
●
I
The instrument is power-supplied. It is either ready for operation (STANDBY) or in
operating mode, depending on the position of the [ON/STANDBY] switch on the
instrument front.
See also data sheet andChapter 4.6, "Connecting to Power", on page 18.
[USB IN]
USB (universal serial bus) interface of type B (device USB).
This interface can be used for remote control of the instrument.
[USB Connectors type A]
USB (universal serial bus) interfaces of type A (host USB).
●
Connection of peripherals such as mouse, keyboard, etc.
●
Connection of memory stick for file transmission
●
Firmware update
See Chapter 4.9, "Connecting USB Devices", on page 19.
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R&S®SMB100A
Instrument Tour
Rear Panel Tour
[LAN Connector]
Ethernet interface
●
For integrating signal generators in a network
●
Remote control of signal generator
●
Remote access to the signal generator
●
Firmware update
See also:
●
Chapter 4.7, "Connecting to LAN", on page 18
●
chapter "Remote Control Basics" in the Operating Manual
[IEC 625/IEEE 488]
IEC-bus (IEEE 488) interface for remote control of the instrument.
See also chapter "Hardware Interfaces" and "Remote Control Basics" in the operating
manual.
Note: In order to avoid electromagnetic interference (EMI) caused by open lines,
always terminate any connected IEC-bus cable with an instrument or a controller.
[Stereo R/L]
Inputs for analog stereo modulation signals. External modulation sources or the internal LF generator can be used (stereo modulation is available with option R&S SMBB5).
See also chapter "Stereo Modulation" in the operating manual.
[S/P DIF]
Input for digital stereo signals (stereo modulation is available with option R&S SMBB5).
See also "Stereo Modulation" in the operating manual.
[SIGNAL VALID]
Output of valid signal. This signal marks the valid signal times (valid level and frequency indication). The signal is generated automatically.
[INSTR TRIG]
Input for external trigger for sweeps and list mode.
[PULSE VIDEO]
Output of internal pulse generator signal or external pulse signal fed in via the [PULSE
EXT] connector (video signal).
[PULSE EXT]
Input of external pulse signal or input of external trigger/gate signal for internal pulse
generator.
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Instrument Tour
Rear Panel Tour
[REF OUT]
Output of internal reference signal.
[REF IN]
Input for external reference signal.
[OCXO]
●
Oven-controlled reference oscillator (option R&S SMB-B1)
or
●
high performance oven-controlled reference oscillator (option R&S SMB-B1H)
The OCXO generates a very precise 10 MHz reference signal. It needs some minutes
of warm-up time to reach its nominal frequency.
Refer also to the data sheet for detailed information.
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6 Trying out the Instrument
Trying out the Instrument
This section provides an example on how to configure the instrument for generating of
an amplitude modulated signal.
Generation of an Amplitude-Modulated Signal
To generate a simple AM-modulated signal, proceed as follow:
1. Activate default (preset) state
Press the [PRESET] key to set a defined instrument state.
2. Select and activate AM modulation
a) Turn the rotary knob and select the "Modulation" block.
b) Press the rotary knob to open the dialog where the modulation can be selected.
Note: Different modulation modes are available depending on the options
installed.
The "Amplitude Mod..." menu is the first menu and is highlighted per default.
c) Turn the rotary knob and highlight "Amplitude Mod...".
Press the rotary knob to open the "Amplitude Modulation" dialog.
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Trying out the Instrument
d) Turn the rotary knob to select parameter "AM Depth", press the rotary knob to
allow editing and enter the preferred AM depth with the aid of the numeric keypad and the unit keys.
e) Finally, select "State" and press the rotary knob to switch on the AM modula-
tion.
f) Press the [DIAGRAM] key to display the complete block diagram.
To indicate the active state, the "Modulation" block is displayed in blue. The "RF" is
not yet active, which means that no RF signal is output.
3. Set frequency and level and activate RF signal
a) Press the [FREQ] key to activate the editing mode for frequency entry. The
"Frequency" entry field in the header section of the display is highlighted.
Enter the frequency using the numeric keypad and terminate the entry by
pressing a unit key.
b) Press the [LEVEL] key and enter the level settings in the same way.
c) Press the [DIAGRAM] key to display the complete block diagram.
d) Turn the rotary knob to select the "RF" block.
Press the [RF ON/OFF] key to activate the "RF" block.
The AM modulation signal is now present at the RF output.
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Trying out the Instrument
Generation of an RF Frequency Sweep Signal
In the example, an RF frequency sweep is configured. Proceed as follow:
1. Activate default (preset) state
Press the [PRESET] key to set a defined instrument state.
2. Configure and activate RF frequency sweep.
a) Turn the rotary knob and select the "RF" block.
b) Press the rotary knob to open the dialog where the RF frequency sweep can be
selected.
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R&S®SMB100A
Trying out the Instrument
c) Turn the rotary knob and highlight "RF Frequency Sweep...".
Press the rotary knob to open the "RF Frequency Sweep" dialog.
All sweep parameters are default except for the sweep mode. The default settings are not changed.
d) Turn the rotary knob to select parameter "Mode", press the rotary knob to open
the selection list and select "Single".
e) Press the rotary knob to apply the selection.
For triggering, the "Execute Single Sweep" and "Reset Sweep" buttons are displayed.
f) Finally, select "State" and press the rotary knob to switch on the RF frequency
sweep.
g) Press the [DIAGRAM] key to display the complete block diagram.
The "RF" is not yet active, which means that no RF signal is output.
3. Activate RF signal.
a) Turn the rotary knob to select the "RF" block.
b) Press the [RF ON/OFF] key to activate the "RF" signal output.
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Trying out the Instrument
To indicate the active state, the RF block is displayed in blue. An RF signal with the
default frequency and level settings is output, i.e. 1 GHz and -30 dBm.
The sweep is not yet active, it must be triggered in the sweep dialog.
4. Trigger RF frequency sweep
a) Press the [Winbar] key to switch to the "RF Frequency Sweep" dialog.
Turn the rotary knob to select the "Execute Single Sweep" button.
Press the rotary knob to trigger (start) the frequency sweep.
A linear single sweep signal is now present at the RF output, starting at 100 MHz.
The sweep is processed in 1 MHz steps with dwell time of 10 ms per step up to the
stop frequency of 500 MHz.
The sweep starts at 100 MHz, stops at 500 MHz in 1 MHz steps is output with a
dwell time of 10 ms per step.
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7 System Overview
7.1 Brief Introduction to the Instrument's Concept
System Overview
Signal Flow at a Glance
This section helps you to get familiar with the R&S SMB. It provides an introduction to
the general concept of the instrument with a sample of the possible application fields. It
also describes the main blocks in the signal generation flow.
For information on how to access functions and interact with the R&S SMB, refer to
Chapter 8, "Instrument Control", on page 62.
The R&S SMB is a high-performance signal generator developed to meet demanding
customer requirements. Offering excellent signal characteristic and straightforward and
intuitive operation, the signal generator makes signal generation fast and easy.
7.2 Signal Flow at a Glance
The R&S SMB is equipped with an intuitive user interface. The central element of the
display is the block diagram that shows the signal flow and processing from the left on
the display to most right, i.e. the generated signal can be seen at a glance.
Each block represents a functional unit of the instrument. Thus you always know the
position at which a parameter affects the signal flow. The main settings of a block are
indicated in the block. The interconnection of employed inputs and outputs is also
shown. The user is thus always informed about the connection of inputs and outputs in
the signal flow and where they can be configured. A window is opened for each menu
where parameters can be set. When the window is opened, an entry is made in the
"Winbar" below the display. All open menus are of equal priority (not modal) and can
be accessed any time.
The block diagram in the figure below shows a fully equipped instrument.
Figure 7-1: Block diagram of a fully equipped R&S
SMB
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System Overview
Description of Individual Diagram Blocks
With the rotary knob, you can navigate in the block diagram and the dialogs, and operate the instrument with one hand. The cursor is moved line by line through the block
diagram or dialog. Turning the button clockwise advances the cursor. The selected
block can be activated or deactivated with the [TOGGLE] key. Active blocks are highlighted by a colored background.
The instrument comprises a comprehensive info and help system. You can access the
context-sensitive help with the [HELP] ([F1]) key at any time. The help system indicates the currently selected parameter and offers additional services such as cross references, index and contents. The content of the help system corresponds to the operating manual of the instrument.
Warning and conflict messages caused by incorrect operation as well as further information are displayed in the "Info" line. A complete list of existing conflicts is displayed
when the [INFO] ([CTRL+I]) key is pressed. Additional information on entries can be
requested from the help system. The history function permits display of all messages.
Assistants simplify the completion of tables. After data entry in the assistant, the table
is modified only after the "Accept" button has been pressed. Pressing the "Accept" button also stores the assistant data.
See Chapter 8, "Instrument Control", on page 62 for an overview on how to work with
the instrument.
For an in-depth description of the dialog boxes and the instrument functions, refer to
section "Instrument Functions" in the operating manual.
7.3 Application Field of the Instrument
The main field of application of the R&S SMB is the generation of sine wave signals
with very high spectral purity. These signals are needed e.g. for adjacent channel or
phase noise measurements. In addition, the RF signal can be modulated with the internal modulations waveforms sine waves and rectangular signals.
7.4 Description of Individual Diagram Blocks
The signal path of the instrument is configured by installing a frequency option that
comprises all required modules.
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System Overview
Description of Individual Diagram Blocks
One of the following options must be installed.
●
R&S SMB-B101 (up to 1.1 GHz)
●
R&S SMB-B102 (up to 2.2 GHz)
●
R&S SMB-B103 (up to 3.2 GHz)
●
R&S SMB-B106 (up to 6 GHz)
●
R&S SMB-B112 (up to 12,75 GHz)
●
R&S SMB-B112L (up to 12,75 GHz without attenuator)
●
R&S SMB-B120 (up to 20 GHz)
●
R&S SMB-B120L (up to 20 GHz without attenuator)
●
R&S SMB-B131 (up to 31,8 GHz)
●
R&S SMB-B140/-B140N (up to 40 GHz)
●
R&S SMB-B140L (up to 40 GHz without attenuator)
Instruments without step attenuator provide a restricted level range at the RF output.
Refer to the data sheet for detailed information.
You can additionally get the following options for microwave instruments:
●
up to 20 GHz (R&S SMB-B120/-B120L)
– high output power option R&S SMB-B31
– low harmonic filter option R&S SMB-B25
●
up to 40 GHz (R&S SMB-B140/-B140L/-B140N)
– high output power option R&S SMB-B32
– low harmonic filter option R&S SMB-B26
See data sheet for detailed information.
Up-to-date information is available at R&S SMB homepage on the internet http://
www.rohde-schwarz.com/product/smb100a.html.
Mod Gen block
The internal modulation sources are configured in this block. Also, the "LF frequency
sweep" can be activated here.
An internal LF generator is available as the internal source for the analog modulations
AM, FM and PHiM. Available modulation shapes are sine and rectangle.
The internal modulation signals are provided at the LF output at the front of the instrument. The LF output signal and the modulations sources for the analog modulations
AM, FM and PhiM can be selected independently from each other.
A pulse generator provides single and double pulse modulation with selectable pulse
widths and periods. Additionally, an option is available to generate pulse train signals.
The R&S SMB offers three different sweep types (frequency sweep, level sweep and
LF sweep) to be activated alternatively. Each type has 6 modes which differ with
respect to the sweep cycle mode (continuous, individual and step-by-step) and triggering mode (automatic, internal and external). In the "Mod Gen" block, the LF sweep is
configured. Frequency and level sweep settings are accessed via the "RF" block.
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System Overview
Description of Individual Diagram Blocks
The status display in the block shows whether LF generator and/or a sweep are active.
The selected internal LF generator and/or noise source are switched on or off with the
[TOGGLE ON/OFF] key.
Modulation block
The internal and external analog modulations are configured and activated in this
block. The [MOD ON/OFF] key switches the active modulation(s) on/off.
The internal modulation sources are configured in the "Mod Gen" block. External
amplitude, frequency or phase modulation signals can be fed in at the input connector
[MOD EXT] at the front of the instrument. An external pulse signal is fed in via the BNC
connector [PULSE EXT] at the rear of the instrument. AC or DC coupling for external
feed is possible.
Modulation signals of up to two sources (internal and external source) can be combined for AM/FM and PhiM modulation.
Available internal and external analog modulation modes are:
●
Amplitude modulation (AM)
●
Frequency modulation (FM)
●
Phase modulation (PhiM)
●
Pulse modulation (Pulse)
●
Stereo modulation (Stereo)
Note: For modulation modes that can be simultaneously used, refer to the R&S SMB
data sheet.
The status display in the block shows the active modulation(s). Use the [TOGGLE ON/
OFF] key to switch the active modulation of the block on or off.
RF block
In this block, the RF parameters and frequency/level sweep settings are set.
The active sweep is displayed in the block. The [RF ON/OFF] key switches the RF signal on and off. When the signal is switched off, the switch before the RF output symbol
is open.
RF settings include:
●
Frequency and reference frequency
●
Level settings; if required.
●
NRP Power Viewer using power sensors
●
Frequency and level sweep
●
List Mode settings. In this mode, extremely fast frequency and level settings can be
made.
The [RF 50 Ohm] output connector at the front of the instrument provides the RF signal. An external trigger/gate signal for sweeps is input via the [INST TRIG] connector at
the rear of the instrument
Note: Frequency and level are set fast with the aid of the [FREQ] and [LEVEL] keys.
Use the [TOGGLE ON/OFF] key to switch the RF output on or off.
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8 Instrument Control
8.1 Manual Operation
Instrument Control
Manual Operation
The operating concept of the R&S SMB employs the following three ways of instrument control:
●
Manual operation
●
Remote control
●
Remote access
The R&S SMB can be operated intuitively either via the interactive block diagram or via
a menu tree. All menus are in the form of windows that can be operated in the same
way. Rotary knob, keys and softkeys, or alternatively a mouse, allow direct and therefore convenient access to entries and settings.
The display shows the current signal generator state. The embedded online help functions supports you in signal configuration.
This section describes the concept of manual operation of the signal generator. It
includes a description of the general structure of a dialog box, working with dialog
boxes and the block diagram and the setting of parameters.
For an in-depth description of the dialog boxes and the instrument functions refer to
section "Instrument Functions" in the Operating Manual.
8.1.1 Legend of Manual Controls
The following table lists all available key combinations used on the PC keyboard to trigger functions on the instrument. Keyboard labels are described in alphabetical order.
In addition, a front panel key emulation and an on-screen keyboard can be used for
manual operation by mouse only.
Table 8-1: Overview of the keyboard key combinations and their function
Key of PC keyboard Short description Function
. / *...# Special characters Enters a special character, e.g. period/
+/- Sign Enters the sign.
- / (shift+) a—z A<->a Switches between upper-case and lower-
decimal point.
case letters.
ALT + F9 Units G/n / dBuV / dBu Selects the unit Giga/Nano, dBuV for the
RF level and dBu for the LF level.
ALT + F10 Units M/u / uV Selects the units Mega/Micro and uV for
RF levels.
ALT + F11 Units k/m / uV Selects the units Kilo/Milli and uV for RF
levels.
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R&S®SMB100A
Instrument Control
Manual Operation
Key of PC keyboard Short description Function
ALT + F12 Enter function
Unit dBm
Arrow keys Cursor Moves the cursor.
Backspace Clears entry Clears the last entry (number, sign or deci-
CTRL + A Rearrange Arranges open dialogs automatically
CTRL + C Recalculate Starts recalculation of the signal.
CTRL+ D Block diagram Sets the cursor on the block diagram and
CTRL + E Setup menu Opens the setup menu for general instru-
CTRL + F1 – F8 Softkey 1 – 8 Triggers the function assigned to the soft-
CTRL+ F Frequency Activates the frequency entry.
CTRL + G Closes menus Closes an active menu.
CTRL+ H Hide Minimizes the active menu. Pressing the
Confirms entries in the base unit and values without a unit.
Selects dBm for the RF level and dB for
level offset and level step width.
mal point)
hides all menus.
ment settings.
key.
respective button in the Winbar opens the
menu again.
CTRL + I Info Opens/closes the info window
CTRL + L Level Activates the level entry.
CTRL + M Menu Calls the menu selection list.
CTRL + O Modulation on/off Switches modulation on/off. "MOD OFF" is
indicated in the status line.
CTRL + P Preset Restores a defined basic instrument setup.
CTRL + Q Local Switches the instrument from remote con-
trol to manual control.
CTRL + R RF on/off Switches the RF output signal on/off. "RF
OFF" is indicated in the status line. Both
RF output signals are always deactivated
in the case of two-path instruments.
CTRL + S Storage under Windows Activates the menu for storing instrument
settings.
CTRL + T Toggle on/off Switches a block or parameter on/off.
Toggles between the different possibilities
of setting a selection parameter.
CTRL+ Y Hardcopy Opens the menu for configuring and start-
ing a hardcopy.
CTRL + W Winbar Displays the Winbar in the foreground/
background.
Enter Enter Terminates an entry.
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8.1.1.1 Front Panel Key Emulation
Instrument Control
Manual Operation
Key of PC keyboard Short description Function
ESC ESC Selects the next higher menu/selection
level. When the editing mode is exited with
ESC, the previous value is restored.
F1 Help Opens/closes context-sensitive help.
Ins Insert Activates the insert mode.
The R&S SMB provides a front panel key emulation to enable execution of the front
panel key functions by mouse e.g. for remote access. The emulation is called on the
external monitor by a right mouse click. The front panel key functions are executed by
a mouse click on the associated button.
8.1.1.2 On-screen Keyboard
In addition, the Windows XP operating system provides a keyboard emulation that can
be used for system settings if no external keyboard but a mouse is available.
To access the on-Screen Keyboard, select "Start > Programs > Accessories > Accessibility > On-Screen Keyboard".
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8.1.2 Key Elements
Instrument Control
Manual Operation
The manual operating concept of the R&S SMB enables the user to make settings as
intuitively as possible and at the same time gives a permanent overview of characteristics of the generated signal and of the current instrument state. Numerous online help
functions support user settings.
Block diagram
The block diagram is the core of the operating concept.
A graphics display shows the current configuration and the signal flow in the form of a
block diagram. All graphical elements can be accessed for operation. An element is
selected by means of the arrow keys and the associated setting function is called by
pressing Enter. Required menus and graphs are displayed on the block diagram which
is displayed again in the foreground whenever the [DIAGRAM] ([CTRL+D]) key is
pressed.
The main characteristics of the RF signal, frequency and level, are permanently displayed in the header section of the screen and can be directly set in the display fields
after the [FREQ] (CTRL+F) or [LEVEL] (CTRL+L) key is pressed. Status messages for
the output signal are displayed in addition to frequency and level.
Operation via Graphical User Interface
●
Functional blocks
Menus are assigned to the specific function blocks in the block diagram. The function blocks represent elements of signal generation. Function blocks displayed with
a blue frame can be directly switched on and off by means of the [TOGGLE ON/
OFF] (CTRL+T) key. The menus of the highlighted function blocks can be called by
pressing the [ENTER] key.
– Example:
The "Modulation" block contains all menus required for modulation signal configuration.
In this block all modulations can be selected.
●
Signal flow
The signal flow between the function blocks and the employed inputs and outputs
are also shown.
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Instrument Control
Manual Operation
●
Menu tree
The menu tree can be opened and closed with the [MENU] (CTRL+M) key. The
menu tree is organized in the same way as the directories under Windows. The
function blocks correspond to the first directory level, the menus to subdirectories.
Operation corresponds to the Windows concept
To offer the user a familiar environment, operation is very similar to operation of Windows user interfaces. All menus and tables are made up of known elements, such as
selection lists, check boxes and entry fields.
A blue frame indicates that the selected item is active. In the highlighted element,
entries can be made.
Rotary knob
Operation is possible via front-panel keys, an external keyboard and the mouse. However, most of the settings can be easily made with the rotary knob:
●
Turning the rotary knob shifts the entry focus to the target element.
●
Pressing the rotary knob activates the selected entry field.
Depending on the parameter, the submenu is called, the numeric value varied, the
list entry selected or the check box activated or deactivated.
●
If a value is entered, the entry is stored by another click on the rotary knob and the
editing mode is exited.
Settings in subdialogs
A separate window is opened for each dialog and subdialog. The dialogs can be operated independently of each other, i.e. none of the dialogs requires that settings in other
dialogs be completed before it can be closed. This ensures flexible operation at all
times.
Keys with assigned simple functions
Most keys on the front panel of the R&S SMB directly perform a simple function.
Since a great number of settings can thus be made by a keystroke, operation is easy.
For instance, the [CLOSE] (ESC) key closes the active menu; with the [RF ON/OFF]
(CTRL+R) key the RF output signal can be switched on or off.
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Manual Operation
An exception are keys that call a menu such as the [MENU] (CTRL+M) key which
opens the complete menu tree of the instrument, the [SETUP] (CTRL+E) key which
opens the menus for general instrument settings or the [FILE] (CTRL+S) key which
opens the menu for file management.
Help functions for user support
Numerous help functions support the user in signal configuration.
●
Value ranges
The valid setting range is displayed for each numeric parameter. This requires a
short wait after activation of the entry field. The range is then displayed automatically after a few seconds.
If the entered value is outside the permissible range, the next permissible value is
automatically set and a message is output.
●
Context-sensitive help
Context-sensitive help for each parameter can be called with the [HELP] or [F1]
key.
●
Comprehensive online help
Each help page is part of a comprehensive online help function which can be
called by means of an index, a content tree or the "Previous/Next" buttons.
Info line with messages for indication of the current instrument state
A great variety of different messages such as status messages, error messages, warnings or information are displayed in the header field of the screen. With the aid of the
[INFO] (CTRL+I) key, help pages can be called for most of the messages. They provide background information on the message and indicate operating steps that may be
required. All messages are explained in the online help which can be called with the
[HELP] (F1) key.
8.1.3 Display
The display shows the current signal generator state and offers graphical elements for
direct operation. It is divided into three sections:
●
The frequency and level display with info line indicates the main output signal
parameters and reports the current state with status, error and warning messages.
●
The block diagram shows the instrument configuration, the signal characteristic as
well as the inputs and outputs used and permits interactive operation via graphics
elements. Active menus and graphs are displayed on top of the block diagram.
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8.1.3.1 Settings Displayed in the Header Section
Instrument Control
Manual Operation
●
Winbar with labeled softkeys for menu display.
The block diagram in the figure below shows a fully equipped instrument.
Figure 8-1: Block diagram of a fully equipped R&S SMB
Frequency/level settings and a few status messages (see Chapter 8.1.3.2, "Status
Information and Messages", on page 68) are displayed in the header field of the
screen. The display may vary depending on the instrument's operating mode:
●
In the sweep mode, the current frequency or level of the output signal is displayed.
The status message "SweepMode" is displayed in the info line.
●
In the list mode, neither the current frequency nor level is displayed, the indication
is dimmed.
●
If user correction is active, the status message "UCorr" is displayed in the info line.
The values displayed in the "Freq" and "Level" fields include a set offset or multiplier
factor.
See also "RF Frequency and Phase" and "RF Level" in the Operating Manual.
The frequency and level indication can be enlarged so that it covers the complete display of the R&S SMB by using the [DIAGR] key. This key toggles between block diagram, magnified frequency and level indication and the display of the active dialog.
This requires the "Summary Screen Toggle" to be enabled.
See chapter "Display/Keyboard Settings" in the operating manual.
8.1.3.2 Status Information and Messages
The instrument indicates status information and messages in the header section of the
screen. The messages differ with respect to their importance (errors, warnings, info)
and the time of their appearance (brief and permanent messages), and require different treatment
For additional information refer to the info window (see Chapter 8.1.3.3, "Info Window",
on page 69).
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Instrument Control
Manual Operation
Refer to "Error messages" in the Operating Manual for an overview of all status information and messages and corrective actions.
Status Information
The status information gives the user an overview of the main operating states and settings of the instrument. The states are indicated for information only and do not necessitate any action by the user.
Status information is displayed between the frequency and level fields, at the left of the
info line or in the info line itself.
Messages
Messages indicate errors in the instrument. They are displayed in the info line in different colors depending on their importance and display duration. Errors (e.g. no calibration data) are displayed in red, information (e.g. file not found) and warnings in black.
Warnings indicate less significant errors (e.g. the instrument operates outside specified
data).
Volatile messages
Brief messages report automatic settings in the instrument (e.g. switching off of incompatible types of modulation) or on illegal entries that are not accepted by the instrument
(e.g. range violations). They are displayed in the info line on a yellow background.
They are displayed on top of status information or permanent messages.
Volatile messages do not normally demand user actions and disappear automatically
after a brief period of time. They are stored in the history, however.
These messages can be read from remote using SYST:ERR? or SYST:ERR:ALL?.
Permanent Messages
Permanent messages are displayed if an error occurs that impairs further instrument
operation, e.g. a hardware fault. The error signalled by a permanent message must be
eliminated before correct instrument operation can be ensured.
The message is displayed until the error is eliminated. It covers the status display in
the info line. After error elimination, the message automatically disappears and is also
recorded in the history.
These messages can be read from remote using SYST:ERRor:STATic?.
8.1.3.3 Info Window
A few operating states and the current message are displayed in the info line.
The [Info] window with a list of current permanent messages and a detailed description
of each message can be opened with the [INFO] (CTRL+I) key.
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Manual Operation
The upper section of the info window contains a list of all current permanent messages
in the order of their occurrence, i.e. the most recent message is displayed first. In the
lower section of the window, additional information on the highlighted message is displayed. A history of all messages that have occurred since instrument switch-on can be
called with the "History" key. The most recent message is displayed first.
The messages are color-coded according to their level. Device-specific messages are
red, info and remote control error are black. The level is also indicated in the "Lev"
column (Err, Sys or Info). Column "SCPI" indicates the SCPI error code.
With the aid of the softkey buttons, error messages can be cleared and a history of all
messages called.
Delete
Clears the highlighted message.
This button is available only if the history of the messages is displayed.
Delete All
Clears all messages.
This button is available only if the history of the messages is displayed.
Remote command:
SYST:ERR:HIST:CLE
History
Calls the list of all messages that have occurred since instrument switch-on. The most
recent messages are displayed at the top of the list. When the button is pressed again,
the list of current messages is displayed.
Remote command:
SYST:ERR? or STAT:QUE?
Each time a SYST:ERR? or STAT:QUE? query is sent, the oldest entry in the error
queue is returned and at the same time cleared in the list.
8.1.3.4 Block Diagram
The block diagram shows provided options, signal configuration and the currently
selected signal flow of the generator with inputs and outputs used. Signal generation
can be completely operated from the block diagram. The highlighted function block can
be directly switched on and off with the [TOGGLE ON/OFF] (CTRL+T) key. Pressing
the Enter opens the associated setting menu.
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Manual Operation
Figure 8-2: Block diagram of the R&S SMB
Function Blocks in the Block Diagram
Each block represents a function of signal generation. The function is indicated in the
headline of the block. In the check box, the respective function can be quickly activated/ deactivated with the [TOGGLE ON/OFF] (CTRL+T) key. After activation, the block
is displayed in blue. Status information is displayed below the check box. It is different
for the different blocks.
Pressing the rotary knob (front panel) or the "Config..." button (mouse) opens the associated setting menu.
Example: Modulation block
In this block, the modulation signals are set. The status information of the "Modulation"
block indicates the selected modulation.
Signal Flow and Input/Output Symbols in the Block Diagram
The input/output symbols in the block diagram show the currently used inputs and outputs of the signal generator. Unused inputs and outputs are not shown. The lines indicate the signal flow.
Symbols and labels refer to the corresponding inputs and outputs on the front and rear
panel of the signal generator. The direction - input or output - is indicated by an arrow.
Example:
The symbols indicate the input for the external pulse signal on the
instrument rear panel.
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8.1.3.5 Structure of the Dialogs
Instrument Control
Manual Operation
The parameters are set in the menus. Menus are accessed either via the function
blocks in the diagram or by means of the [MENU] (CTRL+M) key. The menus are displayed on top of the block diagram.
The [WINBAR] key toggles between the active menus. The [REARR] key toggles
between the enlarged and normal sized menus.
Working with menus and dialog boxes is described in Chapter 8.1.4, "Accessing Dia-
logs", on page 72; the setting of parameters in Chapter 8.1.5, "Setting Parameters",
on page 73.
The menus are in Windows format. The menus differ in details depending on their
function but they consist of the same main elements. Each menu consists of a menu
header and one or more menu areas with various fields for setting parameters.
The header line contains the name of the menu and the buttons for minimizing and
closing the menu. To operate the buttons, use the mouse or the front key [CLOSE]
(ESC).
Several fields of associated but separately set parameters are organized in menu
areas. A menu area is framed and labelled with the function common to all parameters.
Example: Pulse Generator
Each of the setting fields is assigned a parameter name. The kind of setting varies
depending on the parameter to be set. Some settings can only be made in a specific
configuration. If setting is not permitted with the specific configuration selected, the
respective item is disabled and displayed in gray and the entry or selection field cannot
be accessed.
8.1.4 Accessing Dialogs
The [MENU] (CTRL+M) key opens the complete menu tree. Selecting a functional
block and pressing the [Enter] key opens the menu associated with this block.
An alternatively way to access a dialog is to use the [CLOSE] (ESC), [DIAGRAM]
(CTRL+D) and [REARR] (CTRL+A) keys on the front panel.
For a quick access to the dialogs, use one of the following alternative methods.
Displaying the block diagram or a dialog in the foreground
► Press the [DIAGRAM] (CTRL+D) key to move the cursor to the block diagram.
All active menus are minimized.
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Manual Operation
Enlarging the indication of the header section
► Press the [DIAGRAM] key twice to enlarge the indication of the header section.
Tip: Use the [REARR] key to toggle between the enlarged and normal sized dialogs.
Accessing the menu tree
► Press the [MENU] (CTRL+M) key to open the complete menu tree.
Calling the File or Setup dialog
► Use the [FILE] (CTRL+S) or [SETUP] (CTRL+E) keys to open the respective dia-
log.
Closing an active menu
► Press the [CLOSE] key to close an active menu.
Tip: If the cursor is at the highest menu level, you can also use the [ESC] key to
close the active menu.
Accessing the header area
► Press the [FREQ] (CTRL+F) and [LEVEL] (CTRL+L) keys to activate the "Fre-
quency" or "Level" entry fields in the header area.
Keyboard Shortcuts
Keyboard shortcuts (e.g. "Ctrl + D" for the displaying the block diagram in the foreground) provide direct access to all utility dialogs of the instrument (see Chapter 8.1.9,
"Legend of Front-Panel Controls", on page 86).
8.1.5 Setting Parameters
The R&S SMB offers several and sometimes alternative possibilities for setting parameters. Operation is possible from the front panel, with the aid of a mouse and/or from a
PC keyboard.
The examples whitin this description focus on the operation from the front panel.
For more information, refer to:
●
Chapter 8.1.9, "Legend of Front-Panel Controls", on page 86 for an overview of
key functions and a cross-reference between the front panel keys and the keyboard shortcuts
●
"Instrument Functions" in the Operating Manual for a detailed description of key
functions.
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Instrument Control
Manual Operation
Most of the parameters are set in the different menus. The R&S SMB provides alternative ways for accessing the dialogs. Turn the rotary knob and navigate to the corresponding block in the block diagram and press the knob to open the dialog or perform
a mouse click on the "Config..." button.
An exception are the "Setup" and "File" dialogs. In the "Setup" dialog, general settings
are made which are not directly concerned with signal generation, e.g. setting of the
GPIB-bus address. In the "File" dialog, files and lists are managed.
These menus can only be called with the [SETUP] (CTRL+E) and [FILE] (CTRL+S)
keys.
Frequency and level are directly set in the header area of the display using the [FREQ]
and [LEVEL] keys.
Specific settings can also be made directly in the block diagram, e.g. activating a function block by means of the [TOGGLE ON/OFF] (CTRL+T) key or switching the RF output on and off with the aid of the [RF ON/OFF] (CTRL+R) key. Changes affecting the
signal flow are immediately visible in the graphics display.
This section provides an information about the parameter handling that comprises of
the following main steps:
●
Chapter 8.1.5.1, "Working with the Cursor", on page 74
●
Chapter 8.1.5.2, "Selecting a Control Element", on page 75
●
Chapter 8.1.5.3, "Switching Parameters On/Off", on page 75
●
Chapter 8.1.5.4, "Entering a Value", on page 75
●
Chapter 8.1.5.5, "Working with Units", on page 77
●
Chapter 8.1.5.6, "Selecting a Value from a List", on page 78
●
Chapter 8.1.5.7, "Terminating Entries with Confirmation", on page 78
●
Chapter 8.1.5.8, "Restoring the Previous Value", on page 79
8.1.5.1 Working with the Cursor
After the instrument is switched on, the cursor is always on the first function block of
the diagram (default setting).
Moving the cursor on the display
► To move the cursor, use one of the following alternative methods:
a) Use the rotary knob or the arrow keys.
b) Use the [Winbar] key to toggle between the active dialogs.
c) Use the [ESC] key.
Tip: Be aware that the function of the [ESC] key depends on the current cursor
position.
The function of this key depends on the current cursor position.
● Calls the next higher selection level.
● Closes the open window without accepting new entries; the old value or param-
eter is retained.
● In dialog boxes that contain a "Cancel" button it activates that button.
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8.1.5.2 Selecting a Control Element
Instrument Control
Manual Operation
● Closes all kinds of dialog boxes, if the edit mode is not active.
● Quits the edit mode, if the edit mode is active.
● Switches between different entry fields of a menu.
● Shifts the entry cursor from the header display to the previously active menu, or
to the previously highlighted block in the block diagram if no menu is active.
Moving the coursor to the heading area
► Press the [FREQ] (CTRL+F) or [LEVEL] (CTRL+L) key to move the cursor to the
header area.
Control elements are always selected in the same way no matter whether a function
block in the diagram, a menu in the menu tree, a parameter in the menu or an entry in
a list or table is concerned.
► To activate an element, put the cursor on it.
An active element is highlighted by a blue frame.
8.1.5.3 Switching Parameters On/Off
A parameter can be activated and deactivated using a button or a check box.
1. Select the parameter.
2. To change the state of a parameter, use the "Enter" function of the different control
media:
● Press the rotary knob
● Press [ENTER]
● Press the [TOGGLE ON OFF] (CTRL+T) key.
Colour and label of a button change, the check box is ticked or the tick is removed.
8.1.5.4 Entering a Value
Numeric and alphanumeric values can be edited in the entry fields. In the editing
mode, cursors of different colour are used. A blue cursor indicates the overwrite mode,
a green cursor the insert mode.
Numeric and alphanumeric values can either be newly entered or the existing value
can be changed. Incorrect entries are cleared with the [BACKSPACE] key.
Entering a new numerical value
1. Select the parameter.
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Manual Operation
2. Press a numeric key to activate the editing mode.
The previous value is cleared and the new value can be entered.
Editing a value in the insert mode (default setting)
1. Press the rotary knob (= Enter) to activate the editing mode.
If the cursor is placed at the right of the total value, the insert mode is always
active.
2. Set the cursor to the left of the number to be changed using the [Left/Right] arrow
keys.
The cursor is displayed in green.
3. Click on a numeric key to insert a new value.
Editing a value in the overwrite mode
1. Activate the editing mode.
2. Set the cursor on the numeric digit to be changed using the [Left/Right] arrow keys.
The cursor is displayed in blue and the number to be replaced is highlighted.
3. Click on a numeric key to overwrite the highlighted value.
Varying a value
1. Activate the editing mode.
2. Set the cursor to the left of the number to be changed using the [Left/Right] arrow
keys.
The value at the cursor position is varied.
3. To vary the selected value, use the [Up/Down] arrow key or turn the rotary knob.
The value is increased or decreased.
Entering a new alphanumerical value
1. Select the parameter.
2. Press an alphanumeric key to start the editing mode.
The new value is entered.
Editing an alphanumerical value
An existing value, e.g. a file name, can be changed in the insert mode (see example)
or in the overwrite mode.
1. Select the paramter and activate the editing mode.
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8.1.5.5 Working with Units
Instrument Control
Manual Operation
2. Set the cursor to the left of the alphanumerical value using the [Left/Right] arrow
keys.
Tip: If hexadecimal values are to be entered, the numeric front-panel keys are
automatically changed to hexadecimal values.
3. Click on an alphanumeric key to insert a new alphanumerical value.
Terminating the entry of a numeric value
To terminate the entry of a numeric value:
1. Press the rotary knob (= Enter).
2. Press a [UNIT] key on the front panel.
3. Select a "Unit" in the selection field next to the parameter value.
The unit of a parameter is displayed next to the value. When the parameter is edited,
the unit is selected either from the list or by means of the front-panel keys. When the
entry is completed, the unit can be changed. In this case the value remains unchanged
but is automatically adapted to the new unit.
While operating the instrument by means of a mouse, assign the unit to the selected
parameter before entering its value.
Assigning a unit
To assign a unit to a value, use one of the following alternatives:
1. Press a [UNIT] key on the front panel.
2. Select a "Unit" in the selection field next to the parameter value.
Press the [ENTER] key.
The unit displayed in the entry field next to the value is assigned.
Changing a unit
To subsequently change a unit, i.e. after the entry has been terminated and when the
editing mode is not active, use one of the following alternatives:
1. Press a [UNIT] key on the front panel.
2. Select"Unit" in the selection field next to the parameter value.
The value remains unchanged but the display is automatically adapted to the new
unit, i.e. the value is recalculated to suit the new unit.
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8.1.5.6 Selecting a Value from a List
Instrument Control
Manual Operation
The new unit is indicated in the value field of the menu.
Selection lists provide a list of predefined values for the selected parameter.
To select a item from a list, proceed as follow:
1. Press [ENTER] key to open the list.
2. Use one of the following alternatives to navigate through the list:
a) Turn the rotary knob or use the [Up/Down] arrow keys.
The selected item is highlighted.
b) Press [TOGGLE ON/OFF] key several times until the preferred entry is dis-
played in the selection field.
3. To confirm the selection, press the [ENTER] key.
8.1.5.7 Terminating Entries with Confirmation
The instrument behaves different by the termination of entries deppending on the
parameter type and the way this parameter is set.
Confirming settings
► To confirm the settings, press the rotary knob or one of the [Unit] keys (see also
Chapter 8.1.5.5, "Working with Units", on page 77) .
Note: Variations by means of the rotary knob are immediately set.
Confirming multiple values
In some cases, like for instance when editing data in a user correction table, it is useful
first to enter few values and to confirm them together. Such settings require additional
confirmation. Not yet confirmed settings are displayed on a yellow background as an
indication that the currently displayed values do not represent the target signal.
► To confirm these settings, select the "Save" or "Accept" button, respectively.
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8.1.5.8 Restoring the Previous Value
Instrument Control
Manual Operation
Confirming parameters with On/Off state
Most of the instrument functions with enabled and disabled states are calculated and
effective only after this functions have been enabled. However, there are functions like
the frequency variation of the reference oscillator for instance, that are immediately set
after confirmation.
► To confirm a parameter with On/Off state, enable the parameter.
Parameter variations with the rotary knob are immediately set and therefore not reversible.
Normally, values cannot be restored in the case of mouse control because no explicit
confirmation is required in this case and entries are automatically confirmed when the
entry or selection field is exited.
Restoring values
In the case of front-panel control or operation from the keyboard, previous values can
be restored as long as the new value is not confirmed, i.e. the entry is not completed.
► To restore the values, press the [ESC] key.
Restoring values that require confirmation
All settings that are not confirmed with the "Accept" button but require this additional
confirmation can be restored.
1. Press the [ESC] key.
A confirmation query is displayed.
2. Confirm with "OK" to abort the changes.
Select "Cancel" to return to the dialog. The previous selected settings are displayed.
Restoring values after an extended calculation has been started
Calculation and setting might require different period of time. Many settings are made
without noticeable calculation times; such operations are indicated by a "BUSY" message displayed in the status field of the header section.
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8.1.6 Editors
Instrument Control
Manual Operation
A window with a progress indicates that the instrument performs an extended calculation that requires longer calculation time. The termination of such a calculation restores
the previous values.
► Press the [Abort] button to terminate the calculation.
All previous values are restored.
The R&S SMB provides user-friendly editors for defining lists. Lists containing frequency and level value pairs are used for the list mode and the user-defined level correction.
The lists are saved to files and may thus have any length. The file name of the lists and
the directory to which the files are saved are user-selectable. The file prefix is different
for each list type and is permanently assigned by the system.
For information about file handling and overview of the automatically assigned file prefixes, refer to Chapter 8.1.8, "File Management", on page 83.
8.1.6.1 Working with List Editor
The "User Correction" and "List Mode" dialogs provide a list editor for defining the frequency/level value pairs.
Editing list mode data lists
1. To access a list editor and open an existing data list for editing, use the cursor keys
to select the associated button "Edit User Correction Data..." or "Edit List Mode
Data..." (if available) in the individual menu.
The selected list is displayed and the cursor marks the first row of the
"Frequency/Hz" column.
If no list has been selected, a blank list of only one row is displayed.
2. Press the [Left/Right] arrow keys to change between the colums.
Use the [Up/Down] arrow keys to mark a row.
3. Use the numeric keys to enter the value for the value pairs in the "Frequency/Hz"
and "Power/dBm" table columns. A blank row is inserted at the end of the list.
Terminate the entry by pressing a [Unit] key.
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Manual Operation
4. To select a row, select the "GoTo" button and press the [ENTER] key.
Use the numeric keys to enter the row index in the entry field and press the
[ENTER] key to confirm the entry.
The cursor moves to the selected row.
5. To insert a new row in the table, select the row above which the new row is to be
inserted and select "Insert Row(s)".
A row is inserted above the currently marked row.
If no row has been selected, a row is inserted at the beginning of the list.
6. Use the "Save" function to save the edited list under its current name.
Enter the file name in the "File Select" dialog and select the directory (see Chap-
ter 8.1.8.1, "File Select Dialog", on page 84).
Only complete value pairs are taken into consideration; rows containing an entry in
only one column are ignored.
Creating a new list mode data list
A new list can be created under a new name either by generating a blank file in the
"File Select" menu (see section Chapter 8.1.8, "File Management", on page 83) or by
changing an existing list which will then be saved under a new name.
1. To create an empty data list, select "RF > List Mode > List Mode Data... > New
List" or respectively "RF > User Correction > User Cor. Data... > New User Correction Data" and enter the file name of the new data list.
2. To open the data list for editing, select the associated button "Edit User Correction
Data..." or "Edit List Mode Data..." in the individual menu.
Edit the list and save it under a new name.
8.1.7 How to Use the Help System
The R&S SMB is equipped with a context-sensitive help function. A help page is available for each parameter and can be called any time during instrument operation.
Calling context-sensitive and general help
► To display the general help dialog box, press the [HELP] (F1) key.
The help dialog is displayed. A topic containing information about the current menu
or the currently opened dialog box and its function is displayed.
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On top, the help dialog box contains a navigation bar with:
●
"Contents" - accesses a table of help contents
●
"Index" - switches to an index table
●
"Back "/"Previous"/"Next" for navigation to further help topics
Navigating in the table of contents
Instrument Control
Manual Operation
1. To navigate within the table of contents entries, use the [Up/Down] keys. Entries
that contain further entries are marked with a plus sign.
2. To display a help topic, press the "ENTER" key.
The corresponding help topic is displayed.
Navigating in the help topics
1. To scroll through a page, use the [Up/Down] arrow keys.
2. To follow a cross-reference, select the link text.
3. To return to the previous page, select "Back".
This function scrolls back all steps that you have performed before.
4. Use the "Scroll Right" or "Scroll Left" buttons to shift the indicated area of the navigation window to the left or right.
Using the Index
1. Select "Index".
2. Enter the first characters of the topic you are interested in. The entries starting with
these characters are displayed.
3. Press the [ENTER] key to change the focus.
4. Use the [Up/Down] keys to navigate and select the suitable keyword.
5. Press the [ENTER] key to display the help topic.
The corresponding help topic is displayed.
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8.1.8 File Management
Instrument Control
Manual Operation
Closing the help window
► Press the [HELP] (F1) key.
The R&S SMB uses files to save all instrument data, i.e. system and user data.
The user data includes saved instrument settings and lists and the user correction.
The files are stored in the internal memory of the instrument or on a USB memory
stick. The /var directory can be used to save user-defined data; any subdirectory
structure can be created on /var. Some default subdirectories are predefined, but can
be changed at any time.
The /opt directory is a protected system drive and therefore unaccessible system
directory. The files on this directory contain data that must not be changed. Therefore,
this drive should not be accessed, since reconstruction of the system partition will lead
to data loss. To prevent inadvertent deletion or overwriting of system files, this drive is
not specified in the file menus.
Files can be exchanged either via a memory stick or a connected network. A memory
stick is connected to the USB interface and is assigned the var/usb/ drive. In the
case of a connected network, all network drives that can be accessed are available.
The files are accessed in a "Save/Recall" dialog in the individual menus.
The files are differentiated according to their extensions; each type of file is assigned a
specific file content. The extension is usually of no consequence to the user since
access to the files occurs in the individual menus where only the relevant type of file is
available. See "Extensions for user files" on page 86 for an overview of the supported
file extensions.
The user data can be roughly divided into the following data types:
●
Settings
Instrument settings can be saved and loaded. In case of saveing, the current setting is saved to the specified file.
●
Lists
Lists, e.g. user correction lists, can be loaded. They can be generated either externally or internally. For internal generation, a new list must be created in the "File
Select" dialog which will then be edited in the list editor of the individual menu.
For more information, refer to:
●
Chapter 8.1.9, "Legend of Front-Panel Controls", on page 86 for an overview of
key functions and a cross-reference between the front panel keys and the keyboard shortcuts
●
to "Instrument Functions" in the Operating Manual for a detailed description of key
functions.
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Manual Operation
Accessing files with user data
1. To access an editable user data file, select the "Save/Recall" or "File Manger" function in the individual dialog.
2. To access a loadable data file, select the "Select/New" or "File Manager" function in
the individual dialog.
3. To access the "File Manager" function, press the [SETUP] (CTRL+E) key and
select "Save/Recall > File Manager".
A "File Select" window for loading, saving or creating a file or the "File Manager"
dialog for managing all files is displayed.
Saving and loading of all instrument settings
All instrument settings are saved and loaded in the "File" menu.
To access the "File" menu, press the [FILE] (CTRL+S) key.
For more information, see chapter "Storing and Loading Instrument Data - File Key" in
the Operating Manual.
8.1.8.1 File Select Dialog
The "Save/Recall" dialaog displays the available drives and directories. In the upper
part, "Recent Data Sets", the files last used are listed.
The available drives and directories and the files of the selected directory are displayed. The currently selected path is displayed above the window. Only the relevant
files without file extensions are displayed. If the area is opened several times, the path
last selected is displayed. When a file is saved or created, its name is user-selectable;
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Manual Operation
the extension is assigned automatically and cannot be entered. The file is saved to the
selected path.
In addition to the files saved by the user, some menus also offer files containing predefined contents. These files are saved to a specific directory on system drive; for this
reason, this directory cannot be chosen from the "File Select" menu.
Working with the File Select dialog
1. Access the "File Select" dialog (see "Accessing files with user data" on page 84).
2. Navigate in the "File Select" dialog.
3. Load an existing file.
In the "Recall Settings" dialog, mark a file and press the "Select" button.
4. Save a file.
In the "Save Settings" dialog, enter file name in the "File Name:" field.
Select the directory to which the file is to be saved and then select the "Save" button.
5. Create a new file.
To create a new file, use the "Save Settings" functionality, i.e. specify file name and
directory and save the file.
The created file is empty; it must be filled with the necessary values in the individual editor.
8.1.8.2 File Manager
The "File Manager" allows general file management such as copying, shifting, renaming and deleting files as well as generating new directories.
Use the "File Type" to select a file type from the list. This can be used to process either
all files (all files (*) selection) or a specific selection of files. See "Extensions for user
files" on page 86 for an overview of the supported file extensions. The available
drives and directories and the files of the selected directory are displayed. The currently selected path is displayed above the windows. If the area is opened several
times, the path last selected is displayed. Unlike the "File Select" window, the "File
Manager" displays the full file names including extensions.
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Instrument Control
Manual Operation
Working with the File Manager dialog
1. Accessing the "File Manager" dialog (see "Accessing files with user data"
on page 84).
2. Navigating in the "File Manager" dialog.
Operation is very similar to the operation of a standard Windows explorer.
3. Moving, duplicating, deleting or renaming files
To move a file, select the file and press the "Cut" button. Mark the directory to
which the file is to be moved and select the "Paste" button. If the target directory
already contains a file with the same name, a confirmation query is displayed to
confirm overwriting of this file.
Perform the similar steps and cut/copy/rename/delete the file.
Tip: The operation corresponds to the Windows concept.
4. Creating a new directory
Mark drive or directory level where the new directory is to be created, select the
"Create New Directory" button and enter the name of the new directory in the entry
window that opens. Confirm with [ENTER].
Extensions for user files
The following table lists all available file extensions for user files. The currently available files on the instrument depend on the installed options.
Table 8-2: List of the automatically assigned file extensions in the instrument
Function List type Contents File suffix
Instrument State Settings Instrument settings
"User Correction" List User-defined level correction values
"List Mode" List User-defined frequency/level value pairs
"Pulse Train List"
SMZ Settings Settings Data (firmware) of a connected SMZ frequency
NRP Settings Settings NRP Settings
Export Data *.txt or *.csv
Export Data *.txt or *.csv
User-defined offtime/ontime/repetition values
multiplier
8.1.9 Legend of Front-Panel Controls
*.savrcltxt
*.uco
*.lsw
*.pulstrn
*.efmfirm
*.nrp
The following table lists all key functions available on the front panel. Key combinations
used on the PC keyboard to trigger key functions on the instrument front panel are also
described. Keyboard labels are described in alphabetical order.
In addition, a front panel key emulation and an on-screen keyboard can be used for
manual operation by mouse only.
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Table 8-3: Cross-reference between the front panel keys and keyboard shortcuts
Front-panel key Key of PC keyboard Function
Turning the rotary
knob
Pressing the rotary
knob
Arrow keys Arrow keys Moves the cursor.
ENTER / *1 / dB(m) Enter
. / *...# . / *...# Enters a period/decimal point. Enters a special
- / A<->a - / (shift+) a—z Enters the sign.
0-9 / a...z CTRL+ 0-9 / a...z CTRL Enters the number/letter.
[BACKSPACE] Backspace Clears the last entry (number, sign or decimal
[ESC / CLOSE] ESC / CTRL + G Selects the next higher menu/selection level. When
Tab key (towards the right)
Shift + Tab (towards the left)
Enter Pressing the rotary knob confirms an entry; it has
ALT + F12
Sets the cursor with the rotary knob.
the same function as the ENTER key.
Terminates an entry.
Confirms entries in the base unit and values without a unit.
Selects dBm for the RF level and dB for level offset
and level step width.
character.
Switches between upper-case and lower-case letters.
point)
the editing mode is exited with ESC, the previous
value is restored.
Closes an active menu.
[DIAGR] CTRL+ D Sets the cursor on the block diagram and hides all
menus.
[FILE] CTRL + S Activates the menu for storing instrument settings.
[FREQ] CTRL+ F Activates the frequency entry.
G/n / dBuV ALT + F9 Selects the unit Giga/Nano, dBuV for the RF level
and dBu for the LF level.
[HELP] F1 Opens/closes context-sensitive help.
[INFO] CTRL + I Opens/closes the info window
k/m / mV ALT + F11 Selects the units kilo/milli and mV for RF levels.
[LEVEL] CTRL + L Activates the level entry.
[LOCAL] CTRL + Q Switches the instrument from remote control to
manual control.
M/u / uV ALT + F10 Selects the units Mega/Micro and uV for RF levels.
[MOD ON/OFF] CTRL + O Switches modulation on/off. "MOD OFF" is indica-
ted in the status line.
[TOGGLE] CTRL + T Switches a block or parameter on/off.
Toggles between the different possibilities of setting a selection parameter.
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8.1.9.1 Front Panel Key Emulation
Instrument Control
Remote Control
Front-panel key Key of PC keyboard Function
[PRESET] CTRL + P Restores a defined basic instrument setup.
[RF ON/OFF] CTRL + R Switches the RF output signal on/off. "RF OFF" is
indicated in the status line.
[SETUP] CTRL + E Opens the setup menu for general instrument set-
tings.
[WINBAR] CTRL + W Toggles between the active menus.
The R&S SMB provides a front panel key emulation to enable execution of the front
panel key functions by mouse e.g. for remote access. The emulation is called by a right
mouse click. The front panel key functions are executed by a mouse click on the associated button.
8.2 Remote Control
Remote control is an operation of the instrument by means of remote control commands or programs that automatize repeating settings. The instrument is connected to
a computer running the program.
The R&S SMB supports various remote control connections:
●
Connecting the instrument to a (LAN) network
●
Using the LXI browser interface in a LAN network
●
Connecting a PC via the IEC-bus (IEEE 488) interface
●
Remote control via the USB interface
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8.3 Remote Access
Instrument Control
Remote Access
Tip: For remote control over LAN or USB, you can use the R&S VISA (Virtual Instru-
ment Software Architecture) library provided for download at the Rohde & Schwarz
website http://www.rohde-schwarz.com/rsvisa.
This way of operation and the instructions how to set up a connection for remote control are described in the operating manual, chapter "Remote Control Basics". The
description of the remote control commands is provided in the operating manual, chapter "Remote Control Commands".
Remote access is the operating of the instrument from a remote computer. Both the
R&S SMB and the computer are connected in a LAN.
Remote access in contrast to remote control does not use remote-control commands
but a separate software which is installed on the remote computer. After its start, the
software simulates the user interface of the instrument. The instrument can thus be
operated from the remote computer as on the unit itself. The individual functions are
operated using the mouse and keyboard. Specific instrument functions can be executed using specific key combinations on the keyboard or a front panel key emulation that
can be operated with the mouse.
This way of operation and the instructions how to set up a connection for remote
access are described in Chapter 4.16, "Remote Access via an External Controller",
on page 26.
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9 Contacting customer support
Contacting customer support
Technical support – where and when you need it
For quick, expert help with any Rohde & Schwarz product, contact our customer support center. A team of highly qualified engineers provides support and works with you
to find a solution to your query on any aspect of the operation, programming or applications of Rohde & Schwarz products.
Contact information
Contact our customer support center at www.rohde-schwarz.com/support, or follow this
QR code:
Figure 9-1: QR code to the Rohde & Schwarz support page
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Index
Index
A
Abort button ....................................................................... 79
Abort calculation ................................................................ 79
AC supply .......................................................................... 50
Access denied ................................................................... 72
Application cards ............................................................... 12
Application notes ............................................................... 12
Applications of the R&S SMB ............................................ 59
Arrow keys ........................................................................ 47
B
Bench top, placing ............................................................. 15
Brochures .......................................................................... 11
Browser settings
LXI .............................................................................. 34
C
Carrying the instrument ..................................................... 14
Checking the instrument ................................................... 14
Computer name
Changing .................................................................... 26
use instead of IP address ........................................... 25
Connecting
Keyboard .................................................................... 19
LAN ....................................................................... 18, 19
Memory stick ............................................................... 19
Mouse ......................................................................... 19
Power .......................................................................... 18
To Ref In/Ref Out ........................................................ 21
To RF .......................................................................... 20
USB devices ............................................................... 19
Connection to an external controller ................................. 26
Connector
GPIB ........................................................................... 51
IEC/IEEE ..................................................................... 51
INSTR TRIG ............................................................... 51
LAN ............................................................................. 50
LF ................................................................................ 48
MOD EXT ................................................................... 48
PULSE EXT ................................................................ 51
PULSE VIDEO ............................................................ 51
REF IN ........................................................................ 52
REF OUT .................................................................... 51
RF ............................................................................... 48
S/P DIF ....................................................................... 51
SIGNAL VALID ............................................................51
Stereo R/L ................................................................... 51
USB type A ................................................................. 50
USB type B ................................................................. 50
Controller, external ............................................................ 26
Cursor keys ....................................................................... 47
Customer support .............................................................. 90
D
Data sheets ....................................................................... 11
Default instrument settings ................................................ 23
DHCP ................................................................................ 24
Display .............................................................................. 67
Documentation overview ................................................... 11
E
Error messages ................................................................. 69
F
Features of R&S SMB ....................................................... 59
Frequency display ............................................................. 68
Front panel key emulation ........................................... 64, 88
G
GPIB
Connecting .................................................................. 19
H
Help ................................................................................... 11
Host name
see Computer name ............................................. 25, 26
Hostname
see Computer name ............................................. 25, 26
I
IEC 625/IEEE 488
Connecting .................................................................. 19
INFO key ........................................................................... 69
Input connector ..................................................... 48, 51, 52
Instrument
Carrying ...................................................................... 14
Checking ..................................................................... 14
Lifting .......................................................................... 14
Operating site ....................................................... 14, 15
Unpacking ................................................................... 14
Instrument help .................................................................. 11
IP address
Changing .................................................................... 24
K
Key
Arrow key .................................................................... 47
BACKSPACE .............................................................. 45
Cursor key .................................................................. 47
DIAGRAM ................................................................... 46
ENTER ........................................................................ 47
ESC ............................................................................ 46
FILE ............................................................................ 44
FREQ .......................................................................... 45
HELP .......................................................................... 44
INFO ........................................................................... 44
LEVEL ......................................................................... 45
LOCAL ........................................................................ 43
MOD ON/OFF ............................................................. 46
ON/OFF TOGGLE ...................................................... 45
PRESET ............................................................... 23, 43
RF ON/OFF ................................................................ 46
SETUP ........................................................................ 44
WINBAR ..................................................................... 44
Key combinations ........................................................ 62, 86
Keyboard emulation .......................................................... 64
Keypad .............................................................................. 46
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Index
L
LAN
Configuration .............................................................. 24
Connecting ............................................................ 18, 19
Environment ................................................................ 18
Level display ..................................................................... 68
Lifting the instrument ......................................................... 14
Linux .................................................................................. 24
Linux controller .................................................................. 29
LXI
Browser interface ........................................................ 34
Browser settings ......................................................... 34
Configuration .............................................................. 33
LAN configuration ....................................................... 36
Ping ............................................................................. 38
Remote trace (SCPI) .................................................. 40
Web Control ................................................................ 39
M
Manual Remote Control .................................................... 26
Menu structure
Access denied ............................................................ 72
Header ........................................................................ 72
Menu area ................................................................... 72
Mod Gen block .................................................................. 60
Mounting, in a rack ............................................................ 16
N
Navigation keys ................................................................. 47
Network
Environment ................................................................ 18
O
OCXO ................................................................................ 52
Online help
Working with ............................................................... 81
Open source acknowledgment .......................................... 11
Operating concept ............................................................. 62
Operating site
Choosing ..................................................................... 14
Setting up the instrument ............................................ 15
Operating system .............................................................. 24
OSA ................................................................................... 11
Output connector ......................................................... 48, 51
Reset instrument settings .................................................. 23
RF block ............................................................................ 61
Rotary knob ....................................................................... 47
S
Safety instructions ............................................................... 7
SCPI remote trace
LXI .............................................................................. 40
Setting not possible ........................................................... 72
Setting parameters ............................................................ 73
Standby mode ................................................................... 44
Switching
On or off ...................................................................... 21
T
Test setup
Considerations ............................................................ 17
U
Ultr@VNC ......................................................................... 29
Units
Input ............................................................................ 46
UNIX controller .................................................................. 29
Unpacking the instrument ................................................. 14
User manual ...................................................................... 11
V
VNC connection ................................................................ 29
W
Warnings ........................................................................... 69
Web Control
LXI .............................................................................. 39
White papers ..................................................................... 12
P
Ping
LXI .............................................................................. 38
Placing, on a bench top ..................................................... 15
Power
Connecting the instrument .......................................... 18
Preparing for use ............................................................... 14
Preset ................................................................................ 23
Preset instrument settings ................................................. 23
R
Rack, mounting ................................................................. 16
Release notes .................................................................... 11
Remote access ................................................................. 26
Remote trace
LXI .............................................................................. 40
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