Page 1
®
R&S
SMM100A
Vector Signal Generator
Getting Started
(;Ý=S2)
1179133502
Version 05
Page 2
This document describes the R&S®SMM100A, stock no. 1440.8002.02 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.
1179.1335.02 | Version 05 | R&S®SMM100A
The following abbreviations are used throughout this manual: R&S®SMM100A is abbreviated as
R&S SMM100A, R&S®WinIQSIM2TM is abbreviated as R&S WinIQSIM2, R&S®VISA is abbreviated as
R&S VISA.
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R&S®SMM100A
Contents
1 Safety and regulatory information....................................... 7
1.1 Safety instructions................................................................................7
1.2 Labels on R&S SMM100A...................................................................10
1.3 Warning messages in the documentation........................................10
2 Key features......................................................................... 12
3 Preparing for use................................................................. 13
3.1 Lifting and carrying............................................................................ 13
3.2 Unpacking and checking....................................................................13
Contents
3.3 Choosing the operating site.............................................................. 14
3.4 Setting up the R&S SMM100A........................................................... 14
3.4.1 Placing the R&S SMM100A on a bench top......................................... 14
3.4.2 Mounting the R&S SMM100A in a rack................................................ 16
3.5 Considerations for test setup............................................................ 17
3.6 Connecting to power.......................................................................... 18
3.7 Connecting to LAN............................................................................. 18
3.8 Connecting USB devices................................................................... 19
3.9 Connecting to RF................................................................................ 20
3.10 Connecting to LO In/Out.................................................................... 22
3.11 Connecting to Ref In/Ref Out.............................................................22
3.12 Connecting to HS Dig I/Q................................................................... 23
3.13 Switching on or off............................................................................. 24
4 Instrument tour.................................................................... 26
4.1 Front panel tour.................................................................................. 26
4.1.1 Touchscreen..........................................................................................27
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4.1.2 Keys...................................................................................................... 28
4.1.2.1 Utility keys.............................................................................................28
4.1.2.2 On/Standby........................................................................................... 29
4.1.2.3 Function keys........................................................................................29
4.1.2.4 Keypad..................................................................................................30
4.1.2.5 Navigation controls............................................................................... 30
Rotary knob...........................................................................................31
Navigation keys.....................................................................................31
Display keys..........................................................................................31
4.1.3 Connectors............................................................................................32
4.2 Rear panel tour....................................................................................34
Contents
4.2.1 Connectors............................................................................................36
5 Trying out the instrument................................................... 41
5.1 Generating an unmodulated carrier.................................................. 41
5.2 Generating a digitally modulated signal...........................................44
5.3 Triggering the instrument with an external signal...........................47
5.4 Enabling and configuring a marker signal....................................... 53
5.5 Verifying the generated signal with the graphics display...............54
5.6 Saving and recalling settings............................................................ 57
5.7 Generating an EUTRA/LTE signal......................................................60
6 System overview..................................................................65
6.1 Brief introduction to the instrument's concept................................65
6.2 Signal flow at a glance....................................................................... 65
6.3 Internal baseband source ("Baseband" block)................................ 67
6.4 Digital baseband input ("BB input"Block)........................................68
6.5 Additional white gaussian noise ("AWGN" block)...........................68
6.6 "I/Q stream mapper" block.................................................................68
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R&S®SMM100A
6.7 I/Q modulator ("I/Q mod" block)........................................................ 68
6.8 Analog I/Q output ("I/Q analog" block)............................................. 69
6.9 RF and analog modulations ("RF" block).........................................69
6.10 Applications examples of the R&S SMM100A..................................69
Contents
7 Instrument control............................................................... 71
7.1 Possible ways to operate the instrument......................................... 71
7.2 Means of manual interaction............................................................. 72
7.3 Understanding the display information............................................ 73
7.3.1 Status bar..............................................................................................74
7.3.2 Block diagram....................................................................................... 74
7.3.3 Taskbar................................................................................................. 76
7.3.4 Additional display characteristics.......................................................... 77
7.4 Accessing the functionality............................................................... 79
7.5 Entering data....................................................................................... 80
7.5.1 Entering numeric parameters................................................................81
7.5.2 Entering alphanumeric parameters.......................................................82
7.5.3 Undo and redo actions..........................................................................82
7.6 Getting information and help.............................................................82
7.7 Remote control....................................................................................84
7.8 Remote operation over VNC.............................................................. 85
8 Contacting customer support............................................ 86
Index..................................................................................... 87
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Contents
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R&S®SMM100A
Safety and regulatory information
Safety instructions
1 Safety and regulatory information
The product documentation helps you use the product safely and efficiently. Follow the instructions provided here and in the following chapters.
Intended use
The product is intended for the development, production and verification of electronic components and devices in industrial, administrative, and laboratory environments. Use the product only for its designated purpose. Observe the operating
conditions and performance limits stated in the data sheet.
Where do I find safety information?
Safety information is part of the product documentation. It warns you of potential
dangers and gives instructions on how to prevent personal injury or damage
caused by dangerous situations. Safety information is provided as follows:
●
In Chapter 1.1, "Safety instructions", on page 7. 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.
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R&S®SMM100A
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 product is heavy. Do not move or carry the product by yourself. A single person can only carry a maximum of 18 kg safely depending on age, gender and
physical condition. Look up the maximum weight in the data sheet. Use the product handles to move or carry the product. Do not lift by the accessories mounted
on the product. Accessories are not designed to carry the weight of the product.
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.
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.
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R&S®SMM100A
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.
Safety and regulatory information
Safety instructions
●
Only use the power cable delivered with the product. It complies with countryspecific 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.
●
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.
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R&S®SMM100A
Safety and regulatory information
Warning messages in the documentation
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.
Heavy product
Be careful when lifting, moving or carrying the product. Carrying the product requires
a sufficient number of persons or transport equipment.
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 SMM100A
Labels on the casing inform about:
●
Personal safety, see "Connecting to power" on page 9.
●
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 SMM100A 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".
1.3 Warning messages in the documentation
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.
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R&S®SMM100A
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.
Safety and regulatory information
Warning messages in the documentation
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R&S®SMM100A
Key features
2 Key features
The R&S SMM100A 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 SMM100A are:
●
Frequency range from 100 kHz to 44 GHz
●
Up to 1 GHz I/Q modulation bandwidth (in RF) with internal baseband
●
Support of all important digital standards such as 5G New Radio, LTE (up to
Release 15), 3GPP FDD/HSPA/HSPA+, GSM/EDGE/EDGE Evolution, WLAN
IEEE 802.11a/b/g/n, DVB-S2/DVB-S2X, LoRa
●
Excellent signal quality for high accuracy in spectral and modulation measurements
●
Intuitive operation via touchscreen with block diagram as key element
●
Graphical signal monitoring at practically every point in the signal flow
●
SCPI macro recorder and code generator for generating executable remote
control code from manual operating steps (for MATLAB®, CVI, etc.)
For more information, see data sheet.
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R&S®SMM100A
Unpacking and checking
Preparing for use
3 Preparing for use
Here, you can find basic information about setting up the product for the first time.
3.1 Lifting and carrying
► WARNING! The R&S SMM100A can be heavy, e.g., if fully equipped. Use a
lifting equipment, see also "Lifting and carrying the product" on page 8.
Use the carrying handles at the side for lifting and carrying the
R&S SMM100A.
The handles at the front are only for pushing and pulling the instrument when
mounting in a rack, see Chapter 3.4.2, "Mounting the R&S SMM100A in a
rack", on page 16.
3.2 Unpacking and checking
1. Unpack the R&S SMM100A carefully.
2. Retain the original packing material. Use it to protect the control elements and
connectors when transporting or shipping the R&S SMM100A later.
See also chapter "Transporting" in the user 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.
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R&S®SMM100A
Setting up the R&S SMM100A
Preparing for use
3.3 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
●
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.
3.4 Setting up the R&S SMM100A
See also:
●
"Setting up the product" on page 8
●
"Intended use" on page 7
3.4.1 Placing the R&S SMM100A on a bench top
To place the product on a bench top
1. Place the product on a stable, flat and level surface. Ensure that the surface
can support the weight of the product. For information on the weight, see the
data sheet.
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R&S®SMM100A
Preparing for use
Setting up the R&S SMM100A
2. CAUTION! Foldable feet can collapse. See "Setting up the product"
on page 8.
Always fold the feet completely in or out. With folded-out feet, do not place
anything on top or underneath the product.
3. WARNING! A stack of products can fall over and cause injury. Never stack
more than three products on top of each other. Instead, mount them in a rack.
Stack as follows:
● If the products have foldable feet, fold them in completely.
● It is best if all products have the same dimensions (width and length). If the
products have different dimensions, stack according to size and place the
smallest product on top.
● Do not exceed the permissible total load placed on the product at the bot-
tom of the stack:
– 50 kg when stacking products of identical dimensions (left figure).
– 25 kg when stacking smaller products on top (middle figure).
Left = Stacked correctly, same dimensions
Middle = Stacked correctly, different dimensions
Right = Stacked incorrectly, too many products
4. NOTICE! Overheating can damage the product.
Prevent overheating as follows:
● Keep a minimum distance of 10 cm between the fan openings of the prod-
uct and any object in the vicinity.
● Do not place the product next to heat-generating equipment such as radia-
tors or other products.
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R&S®SMM100A
Setting up the R&S SMM100A
Preparing for use
3.4.2 Mounting the R&S SMM100A in a rack
To prepare the rack
1. Observe the requirements and instructions in "Setting up the product"
on page 8.
2. NOTICE! Insufficient airflow can cause overheating and damage the product.
Design and implement an efficient ventilation concept for the rack.
To mount the R&S SMM100A in a rack
1. Use an adapter kit that fits the dimensions of the R&S SMM100A to prepare
the instrument for rack mounting.
a) Order the rack adapter kit designed for the R&S SMM100A. For the order
number, see data sheet.
b) Mount the adapter kit. Follow the assembly instructions provided with the
adapter kit.
2. WARNING! The R&S SMM100A can be heavy, e.g., if fully equipped. Use a
lifting equipment, see also "Lifting and carrying the product" on page 8.
Lift the R&S SMM100A to shelf height.
3. Grab the handles at the front and push the R&S SMM100A 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 SMM100A in the rack.
To unmount the R&S SMM100A from a rack
1. Loosen the screws at the rack brackets.
2. WARNING! The R&S SMM100A can be heavy, e.g., if fully equipped. Use a
lifting equipment, see also "Lifting and carrying the product" on page 8.
Bring the lifting equipment to shelf height.
3. Remove the R&S SMM100A from the rack.
4. If placing the R&S SMM100A on a bench top again, unmount the adapter kit
from the R&S SMM100A. Follow the instructions provided with the adapter kit.
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R&S®SMM100A
Considerations for test setup
Preparing for use
3.5 Considerations for test setup
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 21
– SMA
Double-shielded SMA cables.
How to: "To connect to Ref In/Ref Out (reference = 1 GHz)" on page 23
– USB
Double-shielded USB cables.
How to: Chapter 3.8, "Connecting USB devices", on page 19.
See also chapter "Measuring USB cable quality" in the user manual.
– LAN
At least CAT6 STP cables.
How to: Chapter 3.7, "Connecting to LAN", on page 18
●
Always terminate open cable ends.
●
Ensure that connected external devices comply with EMC regulations.
●
Use cables of the same type and equal length for connection to the I/Q and
I/Q Bar interfaces of the instrument.
●
Use the cable R&S SMU-Z6 for connection to the Dig I/Q interfaces of the
instrument. The cable is available under order number 1415.0201.02.
●
Use the cable R&S DIGIQ-HS for connection to the HS Dig I/Q interfaces of
the instrument. The cable is available under order number 3641.2948.03.
How to: Chapter 3.12, "Connecting to HS Dig I/Q", on page 23
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 SMM100A and connected devices.
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R&S®SMM100A
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.
Preparing for use
Connecting to LAN
3.6 Connecting to power
For safety information, see "Connecting to power" on page 9.
1. Plug the AC power cable into the AC power connector on the rear panel of the
instrument. Only use the AC power cable delivered with the R&S SMM100A.
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.
3.7 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.
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R&S®SMM100A
Connecting USB devices
To connect to LAN
The connector is located on the rear panel .
► Connect the LAN socket via an RJ-45 cable to the LAN.
By default, the R&S SMM100A is configured to use DHCP (dynamic host configuration protocol) and no static IP address is configured.
If switched on and connected to the LAN, the R&S SMM100A displays the
address information on the screen.
Figure 3-1: IP address indication on the screen (example)
Preparing for use
See also the chapter "Connecting the Instrument to the Network (LAN)" in the
user manual.
3.8 Connecting USB devices
You can connect or disconnect all USB devices from the R&S SMM100A during
operation.
To connect USB storage devices
USB storage devices, such as memory sticks, allow data transfer from or to the
R&S SMM100A. You can also use them for firmware updates.
► Connect the USB storage device to any of the USB connectors.
To connect USB devices with external power supply
1. NOTICE! Connected devices with external power supply can feed back current into the 5 V power supply of the USB interface and thus damage the
R&S SMM100A.
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 any of the USB connectors.
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R&S®SMM100A
To connect a keyboard
► Connect the keyboard to any of the USB connectors.
When connected, the R&S SMM100A detects the keyboard automatically. A
detected keyboard has the default layout English – US.
To connect a mouse
► Connect the mouse to any of the USB connectors.
When connected, the R&S SMM100A detects the mouse automatically.
To connect power sensors
You can connect power sensors of the R&S NRP families to any of the USB connectors.
Preparing for use
Connecting to RF
See chapter "Using Power Sensors" in the user manual.
3.9 Connecting to RF
The connector is located on the front panel.
If you have the instrument equipped with an option for rear panel connectors, the
RF output connector is on the rear panel.
To prepare for connecting to RF
1. NOTICE! Damaged or not clean connections can lead to RF insertion loss
and mismatch, 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.
2. NOTICE! Risk of instrument damage. Excessive reverse power or DC voltage
at the RF connector can damage the instrument.
Make sure that signal power and DC limits as given in the data sheet.
3. If the R&S SMM100A is switched on, deactivate the RF output, before connecting an RF cable to the RF connector.
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R&S®SMM100A
In the block diagram, select the block "RF" > "RF Level" > "RF ON > Off".
4. Use a high-quality RF cable that matches the RF connector type.
See "Cable selection and electromagnetic interference (EMI)" on page 17.
To connect to non-screwable connectors (BNC)
► 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
common axis.
b) Mate the connectors along the common axis until the male pin of the con-
nector of the cable engages with the female socket of the RF connector.
To connect to screwable connectors
1. Use a high-quality cable that matches the connector type.
See "Cable selection and electromagnetic interference (EMI)" on page 17.
Preparing for use
Connecting to RF
2. NOTICE! Risk of instrument damage and connector damage. Excessive tightening can damage the cables and the connectors. However, if you do not
tighten the connectors enough, the measurement results can be inaccurate.
To connect the cable with the connector, proceed as follows:
a) Carefully align the connector of the cable and the connector along a com-
mon axis.
b) Mate the connectors along the common axis until the male pin of the inner
connector engages with the female socket of the outer connector.
c) Turn the nut of the outer connector until the connectors are firmly coupled.
d) Torque the nut to the specified limit using a calibrated torque wrench. Hold
the opposite connector part stationary with a spanner.
For torque limits of the most relevant connector types, see Table 3-1.
For more information, see chapter "Handling" of the application note 1MA99.
If your instrument is equipped with a test port adapter, see the application note
1MA100.
The connector types listed in this table represent the common connectors provided by Rohde & Schwarz. It is considered as general information and therefore
can contain connector types that do not apply to your instrument.
See "RF" on page 32.
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R&S®SMM100A
Connecting to Ref In/Ref Out
Table 3-1: Connector types and torque limits
Type Torque limit Nut opening
Preparing for use
N 13.3 1.5 3/4 20
SMA 5 0.56 5/16 8
3.5 mm 8 0.9 5/16 8
2.92 mm 8 0.9 5/16 8
2.4 mm 8 0.9 5/16 8
1.85 mm 8 0.9 5/16 8
1.0 mm 3 0.34 0.236 6
lb-Inch Nm Inch mm
To prevent RF output switch-off
► NOTICE! If you set a too high output level without a load connected to the
instrument, the reverse power can exceed a limit forcing the R&S SMM100A
to switch off the RF output.
Connect a load with sufficient return loss as given in the data sheet.
3.10 Connecting to LO In/Out
"LO In/Out" connectors are Subminiature Version A (SMA) connectors.
The connector is located on the rear panel .
Follow the instructions in "To connect to screwable connectors" on page 21.
See also chapter "Local Oscillator Coupling" in the user manual.
3.11 Connecting to Ref In/Ref Out
The connector is located on the rear panel .
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R&S®SMM100A
Preparing for use
Connecting to HS Dig I/Q
To connect to Ref In/Ref Out (reference < 1 GHz)
For connection, the R&S SMM100A provides BNC connectors.
► Follow the instructions in "To connect to non-screwable connectors (BNC)"
on page 21.
To connect to Ref In/Ref Out (reference = 1 GHz)
For connection, the R&S SMM100A provides SMA connectors.
► Follow the instructions in "To connect to screwable connectors" on page 21.
3.12 Connecting to HS Dig I/Q
The HS Dig I/Q connector comprises a QSFP+ (Quad Small Form-factor Pluggable) socket, that has two components: a QSFP+ cage and a QSFP+ connector.
The QSFP+ cable is equipped with the QSFP+ plug.
3
1
2
1 = QSFP+ plug
2 = QSFP+ cage
3 = QSFP+ connector
The connector is located on the rear panel .
To connect to HS Dig I/Q interface
1. For connection, use the QSFP+ cable R&S DIGIQ-HS.
See "Cable selection and electromagnetic interference (EMI)" on page 17.
2. Hold the QSFP+ plug of the cable by its panes.
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Preparing for use
Switching on or off
3. Turn the QSFP+ cable, so that the release tab shows upwards.
4. Insert and push the QSFP+ plug into the QSFP+ cage.
To disconnect from HS Dig I/Q interface
1. NOTICE! If you pull the cable, you can damage the cable and the HS Dig I/Q
connector.
Pull the release tab.
2. Pull the QSFP+ plug out of the QSFP+ cage.
See also "Digital Baseband Input Settings" in the user manual.
3.13 Switching on or off
The following table provides an overview of power states, LEDs and power switch
positions.
Table 3-2: Overview of power states
State LED Position of power switch
Off
Standby
Ready
gray
orange
green
[0]
[I]
[I]
To switch on the R&S SMM100A
The R&S SMM100A is off but connected to power. See Chapter 3.6, "Connecting
to power", on page 18.
1. Set the switch on the power supply to position [I].
The switch is located on the rear panel.
The LED of the [On/Standby] key is orange.
2. Wait until the oven-controlled oscillator (OCXO) warms up. For the warm-up
time, see data sheet.
3. Press the [On/Standby] key.
Key and LED are located on the front panel.
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R&S®SMM100A
The LED changes to green. The R&S SMM100A boots.
When starting for the first time, the R&S SMM100A starts with the default settings. When restarting the instrument, the settings depend on the instrument
configuration before shut-down.
See the chapter "Saving and Recalling Instrument Settings" in the user manual.
When the instrument is switched on, it automatically monitors main functions. You
can query erroneous functions. In addition to automatic monitoring, you can perform maintenance tasks.
See:
●
Chapter "Querying Error Messages" in the user manual.
●
Chapter "Performing Maintenance Tasks" in the user manual.
Preparing for use
Switching on or off
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 orange.
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 SMM100A is in the standby state.
1. NOTICE! Risk of data loss. If you disconnect the product from power when it
is in 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 SMM100A from the power source.
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R&S®SMM100A
Instrument tour
Front panel tour
4 Instrument tour
This chapter explains the control elements and the connectors of the
R&S SMM100A. The views of the front panel and the rear panel help you to get
familiar with the instrument and to perform first steps. For specifications of the
interfaces, see the data sheet.
The meanings of the labels on the R&S SMM100A are described in Chapter 1.2,
"Labels on R&S SMM100A", on page 10.
4.1 Front panel tour
This section provides an overview of the control elements and connectors on the
front panel of the R&S SMM100A. On the rear panel, you find all further connectors of the unit, see Chapter 4.2, "Rear panel tour", on page 34. The user interface can be displayed on a remote PC station used to manually remote control
the instrument.
1
10
Figure 4-1: Front panel view
1 = Utility keys, page 28
2 = Touchscreen, page 27
3 = Keypad, page 30 and Function keys, page 29
4 = Navigation controls, page 30
2 3 4 5
89
67
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Instrument tour
Front panel tour
5 = I/Q, page 32
6 = RF, page 32
7 = Sensor, page 33
8 = User x, page 33
9 = USB, page 33
10 = On/Standby, page 29
4.1.1 Touchscreen
The block diagram and the most important settings are displayed on the screen
on the front panel. Also, the screen display provides status and setting information and allows you to quickly reconfigure the signal flow. The screen is touchsensitive, offering an alternative means of user interaction for quick and easy
handling of the instrument.
1
2
Figure 4-2: Touchscreen elements
1 = Status bar (frequency and level display)
2 = Block diagram
3 = Taskbar/softkey bar
3
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Instrument tour
Front panel tour
A touchscreen is a screen that is touch-sensitive. It reacts in a specified way
when a particular element on the screen is tapped by a finger. Any user interface
element that can be clicked by a mouse pointer can also be tapped on the screen
to trigger the same behavior.
Using the touchscreen, the following tasks (among others) can be performed by
the tap of your finger:
●
Changing a setting
●
Selecting new settings
●
Scrolling through the list of parameters
●
Saving or recalling settings
●
Opening and closing dialogs
See also:
●
Chapter 7, "Instrument control", on page 71, for operating the touchscreen.
●
"Cleaning" in the user manual, for instructions on cleaning the screen.
4.1.2 Keys
4.1.2.1 Utility keys
The utility keys cause the R&S SMM100A to return to a defined instrument state
and provide information on the instrument and assistance.
For more information, refer to chapter "General Instrument Functions" in the user
manual.
Table 4-1: Utility keys
Utility key Assigned functions
[Preset] Sets the instrument to a defined state
[Save/Rcl] Saves and loads instrument setting
Accesses the file manager
[Local] Switches from remote control to local (manual) control
[Setup] Accesses the general instrument settings
[HCOPY] Opens the "Hardcopy" dialog for storing the current display in a file
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Utility key Assigned functions
[Info] Displays status messages, error messages, and warnings
[Help] Displays context-sensitive help text
4.1.2.2 On/Standby
The [On/Standby] key switches the instrument from the standby to the ready state
or vice versa.
The LED above the [On/Standby] key indicates the instrument state, see Chap-
ter 3.13, "Switching on or off", on page 24.
4.1.2.3 Function keys
Function keys provide access to most common generator settings and functions.
A detailed description of the corresponding functions is provided in the user manual.
Table 4-2: Function keys
Function key Assigned functions
[Freq] Activates frequency entry.
[Level] Activates level entry.
[Diagram] Brings the block diagram to the foreground. Active dialogs are
minimized.
[RF on/off] Switches the RF output on and off.
[Mod on/off] Switches the modulations on and off.
[★ (User)] Key with a customizable function. You can define the action to be
executed.
Function execution (in navigation controls area)
[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.
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Instrument tour
Front panel tour
4.1.2.4 Keypad
The keypad is used to enter alphanumeric parameters, including the corresponding units. It contains the following keys:
Table 4-3: Keys on the keypad
Type of key Description
Alphanumeric keys Enter numbers and (special) characters in edit dialog boxes.
Decimal point Inserts a decimal point "." at the cursor position.
Sign key Changes the sign of a numeric parameter. For an alphanumeric
parameter, inserts a "-" at the cursor position.
Unit keys
(G/n dBμV, M/μ μV, k/m mV
and x1 dB(m))
[INSERT] key Toggles between insert and overwrite mode
[Esc] key Closes all kinds of dialog boxes, if the edit mode is not active.
[Backspace] key If an alphanumeric entry has already been started, this key dele-
[Enter] key
These keys add the selected unit to the entered numeric value
and complete the entry.
For level entries (e.g. in dB) or dimensionless values, all units
have the value "1" as multiplying factor. Thus, they have the
same function as an [Enter] key.
Quits the edit mode, if the edit mode is active. In dialog boxes
that contain a "Cancel" button it activates that button.
For "Edit" dialog boxes the following mechanism is used:
●
If data entry has been started, it retains the original value
and closes the dialog box.
●
If data entry has not been started or has been completed, it
closes the dialog box.
tes the character to the left of the cursor.
Has the same effect as pressing the rotary knob
●
Concludes the entry of dimensionless entries. The new value
is accepted.
●
With other entries, this key can be used instead of the
default unit key.
●
In a dialog box, selects the default or focused element.
●
Calls the next dialog level.
●
Confirms and closes open input windows.
4.1.2.5 Navigation controls
The navigation controls include a rotary knob, navigation keys, and the display
keys. They allow you to navigate within the display or within dialog boxes.
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Front panel tour
Rotary knob
The rotary knob has several functions:
●
Increments (clockwise direction) or decrements (counterclockwise direction)
the instrument parameter at a defined step width for a numeric entry.
●
Moves the selection, e.g. to a function block in the block diagram
●
Shifts the selection bar within focused areas (e.g. lists).
●
Acts like the [Enter] key, when it is pressed.
Navigation keys
The navigation keys can be used alternatively to the rotary knob to navigate
through dialog boxes, diagrams, or tables.
Table 4-4: Navigation keys
Type of key Description
[Up/Down] Key The [Up] and the [Down] key does the following:
●
In a numeric edit dialog box, increase or decrease the instrument parameter.
●
In a list, scroll forward and backward through the list entries.
●
In a table, move the selection bar vertically.
●
In windows or dialog boxes with vertical scrollbar, move the
scrollbar.
[Left/Right] Key The [Left] and the [Right] key does the following:
●
In an alphanumeric edit dialog box, move the cursor.
●
In a list, scroll forward and backward through the list entries.
●
In a table, move the selection bar horizontally.
●
In windows or dialog boxes with horizontal scrollbar, move
the scrollbar.
Display keys
The display keys arrange different windows on the display.
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Front panel tour
Table 4-5: Display keys
Display key Assigned functions
[Next window] Toggles between the active dialogs
[Resize window] Adjusts the size of the active dialog to use the whole height of
the display.
[Esc] Closes all kinds of dialog boxes, if the edit mode is not active.
Quits the edit mode, if the edit mode is active. In dialog boxes
that contain a "Cancel" button it activates that button.
For "Edit" dialog boxes the following mechanism is used:
●
If data entry has been started, it retains the original value
and closes the dialog box.
●
If data entry has not been started or has been completed, it
closes the dialog box.
4.1.3 Connectors
The RF connector and various others interface connectors are on the front panel.
I/Q
BNC connectors for input of external I/Q signals for analog modulation. The signals are fed directly into the I/Q modulator.
RF
Output of the RF signal.
The connector type depends on the maximum frequency f
Table 4-6: RF connector types of the frequency options
Installed RF frequency
option
R&S SMM-B1003/B1006/-B1007
R&S SMM-B1012/B1020/-B1031
R&S SMM-B1044/B1044N
Connector type Frequency range
N female f
PC 2.92 mm female
Instrument equipped with interchangeable
PC 2.92 mm test port adapter.
PC 1.85 mm female
Instrument equipped with PC 1.85 mm inter-
changeable female/female wear and tear
adapter.
, see table below.
max
≤ 7.5 GHz
max
f
≤ 40 GHz
max
f
≤ 44 GHz
max
Note: The PC 1.85 mm male connector for up to 44 GHz comes with a protective
1.85 mm female adapter to prevent the sensitive connector from damage.
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Instrument tour
Front panel tour
It is available as a spare part, and can be replaced if damaged. Contact your
Rohde & Schwarz support center or www.rohde-schwarz.com/support for infor-
mation.
How to: Chapter 3.9, "Connecting to RF", on page 20
Sensor
Connector for R&S NRP sensors.
A power sensor is connected to the R&S SMM100A by inserting the male connector. To disconnect, pull the connector by its sleeve. You cannot disconnect the
sensor simply by pulling at the cable or the rear part of the connector.
The R&S SMM100A supports the use of R&S NRP power sensors in various
ways including the use as a power viewer.
How to: Chapter "Using Power Sensors" in the user manual
User x
BNC multipurpose connectors for defining input signals and output signals.
The Table 4-7 lists the signals assigned to the User x connectors in the default
instrument state.
Table 4-7: Default configuration of the User x connectors
User connector Direction Default assigned signal
1 Output "Baseband Marker 1"
2 Output "Baseband Marker 2"
3 Input "Global Trigger 1"
A dedicated LED indicates the connector status:
●
green: an input connector
●
yellow: an output connector
●
no light / gray: the connector is not active
See also chapter "Local and global connectors settings" in the user manual.
USB
Two female USB (universal serial bus) 2.0 connectors of type A (host USB). You
can connect, for example, a keyboard, a mouse or a USB memory stick.
Further USB connectors of type A (host USB) and type B (USB Device) are available on the rear panel.
How to: Chapter 3.8, "Connecting USB devices", on page 19.
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Instrument tour
Rear panel tour
4.2 Rear panel tour
This section provides an overview of the connectors on the rear panel of the
instrument. For technical data of the connectors, refer to the data sheet.
1 2
3
Figure 4-3: R&S SMM100A rear panel controls and connectors (R&S SMM-B9
1 = Connectors for rack use, external reference signal, external frequency control, local oscillator
and remote control, page 35
2 = System drive, power switch, power supply, monitor, LAN and USB connectors, page 35
3 = Instrument board R&S SMM-B9, page 36
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Instrument tour
Rear panel tour
2
1
3
4
5
6
7
8
9
Figure 4-4: Connectors for rack use, external reference signal, external frequency control,
local oscillator and remote control
1 = Connectors for use in a rack: I/Q, page 36 and RF, page 36
2, 3 = Ref In/Ref Out, page 36
4 = Inst Trig, page 39
5 = User x, page 37
6 = EFC, page 37
7 = Serial number (six digits in the string 1440.8002.02-<serial number>-<checksum>)
8 = LO In/LO Out, page 37
9 = IEC 625/IEEE 488, page 37
1 2
3456
Figure 4-5: System drive, power switch, power supply, monitor, LAN and USB connectors
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R&S®SMM100A
1 = System drive (HDD), page 38
2 = AC power supply connector and switch, page 38
3 = USB/USB Device, page 38
4 = LAN, page 38
5, 6 = Display Port, HDMI, page 38
Instrument tour
Rear panel tour
1 2 3 4
Figure 4-6: Instrument board R&S SMM-B9
1 = Dig I/Q, page 38
2 = HS Dig I/Q, page 39
3 = Adv Data/Ctrl, page 40
4 = T/M/C, page 39
5 = Board designation (CODER)
6 = I/Q, I/Q Bar, page 40
7 = Mod Ext 1/2, page 39
8 = Adv. Trg., Adv. Clk., page 40
4.2.1 Connectors
5
8 7 6
I/Q
Rear panel I/Q input connectors for use of the instrument in a 19" rack. See "I/Q"
on page 32.
How to: Chapter 3.4.2, "Mounting the R&S SMM100A in a rack", on page 16
RF
Rear panel RF output connectors for use of the instrument in a 19" rack. See
"RF" on page 32.
How to:
●
Chapter 3.4.2, "Mounting the R&S SMM100A in a rack", on page 16
●
Chapter 3.9, "Connecting to RF", on page 20
Ref In/Ref Out
Input/output for external reference signal.
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Rear panel tour
BNC connectors for reference signals from 1 MHz to 100 MHz.
SMA connectors for 1 GHz reference signals.
How to: Chapter 3.11, "Connecting to Ref In/Ref Out", on page 22
User x
BNC multipurpose connectors for defining input signals and output signals.
Table 4-8 lists the signals assigned to the User x connectors in the default instru-
ment state.
Table 4-8: Default configuration of the User x connectors
User connector Direction Default assigned signal
4 Input "Global Trigger 2"
5 Output "Signal Valid"
6 Not used None
A dedicated LED indicates the connector status:
●
green: an input connector
●
yellow: an output connector
●
no light / gray: the connector is not active
See also chapter "Local and global connectors settings" in the user manual.
EFC
BNC connector for input of an EFC (external frequency control) signal for electronic tuning of the internal reference frequency.
LO In/LO Out
Option: R&S SMM-B90
SMA connector for local oscillator input and output for phase-coherent RF signal:
●
LO In: Input of phase coherence signal
●
LO Out: Output of phase coherence signal
How to: Chapter 3.10, "Connecting to LO In/Out", on page 22
IEC 625/IEEE 488
General purpose interface bus (GPIB) interface for remote control of the instrument. The interface is in compliance with the standards IEC 625, IEEE 488 and
SCPI.
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R&S®SMM100A
Use this interface to connect a computer for remote control of the
R&S SMM100A. To set up the connection, use high-quality shielded cables. See
"Cable selection and electromagnetic interference (EMI)" on page 17.
See also "Annex: Hardware Interfaces" and chapter "Network and Remote Control" in the user manual.
System drive (HDD)
Hard disk drive (HDD) or solid-state drive (SSD); the SSD requires option
R&S SMM-B93.
For security reasons, the hard disk is bound to the specific R&S SMM100A. You
can remove it from the instrument, but you cannot use it in other instruments.
See also section "Removing the system drive from the R&S SMM100A" in the
user manual.
AC power supply connector and switch
Mains power switch for performing the following tasks:
●
Connecting the internal power supply to the power source
●
Disconnecting the internal power supply from the power source
Instrument tour
Rear panel tour
How to: Chapter 3.6, "Connecting to power", on page 18.
USB/USB Device
●
Two female USB (universal serial bus) 3.1 connectors of type A (host USB), to
connect devices like a keyboard, a mouse, a memory stick, or the R&S NRPZ3/Z4 cable for the R&S NRP power sensors.
●
Female USB 3.0 connector of type B (USB Device), for example, for remote
control.
How to: Chapter 3.8, "Connecting USB devices", on page 19
LAN
RJ-45 connector to connect the R&S SMM100A to a LAN for remote control,
remote operation, and data transfer.
How to: Chapter 3.7, "Connecting to LAN", on page 18
Display Port, HDMI
Provided for future use.
Dig I/Q
Connectors for the input of a digital I/Q signal from a Rohde & Schwarz instrument, like a signal generator.
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Instrument tour
Rear panel tour
HS Dig I/Q
Option: R&S SMM-B9
Connectors for the input/output of high-speed digital I/Q signals, for example,
from and to Rohde & Schwarz instruments.
For more information, see data sheet.
The interface is a QSFP+ (Quad Small Form-factor Pluggable) module. It supports max. bandwidth of up to 50 Gsample/s with optical active cables.
How to: Chapter 3.12, "Connecting to HS Dig I/Q", on page 23
T/M/C
BNC multipurpose input/output trigger/marker/clock connectors.
There is one T/M/C and one T/M connector.
Define the input/output signal first. Table 4-9 lists the configuration of the local
connectors in the default instrument state.
Table 4-9: Default configuration of the T/M/C connectors
Connector Direction Default assigned signal Remark
T/M/C Output Clock Symbol clock A
T/M Input Marker Baseband marker 2
A dedicated LED indicates the connector status:
●
green: an input connector
●
yellow: an output connector
●
no light / gray: the connector is not active
See also the chapters in the user manual:
●
"Data, Clock and Control Signals and Sources in the Baseband"
●
"Local and Global Connectors"
Inst Trig
BNC connector for input of external trigger signals. The signals trigger sweeps
and list mode.
See chapter "Signal Generation and Triggering in the Sweep and List Modes" in
the user manual.
Mod Ext 1/2
Input for external analog modulation signals.
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R&S®SMM100A
Adv Data/Ctrl
Interface for exchanging of external data and control signals.
Adv. Trg., Adv. Clk.
Input and output for synchronization signal in multi-instrument setups.
See also "Multi-Instrument Setups" in the user manual.
I/Q, I/Q Bar
BNC connector for output of direct (single-ended) or differential analog I/Q signals.
Note: The R&S SMM100A also assigns the internal signal of the LF generator to
the I output connector.
Therefore, consider that you cannot output the analog I/Q signal and the internal
LF signal at the same physical connector simultaneously.
See the data sheet and in the user manual, section "Analog Modulation".
Instrument tour
Rear panel tour
Use the connectors for connections as follows:
●
I/Q connectors: Direct (single-ended) or positive differential output of analog
I/Q signals
●
I/Q Bar connectors: Negative differential output of analog I/Q signals
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R&S®SMM100A
Generating an unmodulated carrier
Trying out the instrument
5 Trying out the instrument
This chapter introduces the most important functions and settings of the
R&S SMM100A step by step. The complete description of the functionality and its
usage is given in the R&S SMM100A user manual. Basic instrument operation is
described in Chapter 7, "Instrument control", on page 71.
Prerequisites
●
The instrument is set up, connected to the power supply, and started up as
described in Chapter 3, "Preparing for use", on page 13.
For the first signal generation tasks, you use the internal baseband and reference
signal, so you do not need any additional signal source. More complex signal
generation tasks, however, require an instrument equipped with additional options
and/or external signals. Each task description lists its prerequisites.
The screenshots in this description show a fully equipped instrument. Consider that, the block diagram displayed on your particular instrument can differ from the one used in the example.
The instrument is manually operated via the touchscreen. Try out the following:
● Generating an unmodulated carrier................................................................ 41
● Generating a digitally modulated signal.......................................................... 44
● Triggering the instrument with an external signal............................................47
● Enabling and configuring a marker signal.......................................................53
● Verifying the generated signal with the graphics display.................................54
● Saving and recalling settings.......................................................................... 57
● Generating an EUTRA/LTE signal...................................................................60
5.1 Generating an unmodulated carrier
We start out by generating a simple unmodulated signal. The R&S SMM100A in
this example can be a base unit in its minimal configuration (i.e. with installed
R&S SMM-B1006).
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R&S®SMM100A
Generating an unmodulated carrier
1. On the R&S SMM100A front panel, press the Preset key to start out in a
defined instrument configuration.
2. Set the frequency:
a) On the "Status Bar", tap the "Frequency" field.
b) On the on-screen keypad, enter 1.955 and press the "GHz" key.
Trying out the instrument
The on-screen keypad closes and the frequency value is displayed.
3. On the "Status Bar", tap the "Level" field and enter the level in the same way.
4. Select "Block Diagram > RF Block > On" to enable the output of the generated
unmodulated signal.
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R&S®SMM100A
Trying out the instrument
Generating an unmodulated carrier
Figure 5-1: Block diagram: Generating an unmodulated signal
The 1.95 GHz signal is output at the RF connector at the front panel of the
R&S SMM100A.
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R&S®SMM100A
Generating a digitally modulated signal
Connect RF of the R&S SMM100A to a signal analyzer, for example
R&S®FSW, to display the generated signal.
Figure 5-2: Simplified test setup
For the required settings of the signal analyzer, refer to its user manual or its
online help.
Trying out the instrument
5.2 Generating a digitally modulated signal
This example shows you how to generate a simple WCDMA-3GPP (QPSK 45°
offset) signal with the help of the "Custom Digital Modulation" functionality.
The minimum requirement for R&S SMM100A in this example is a base unit
equipped with:
●
Option baseband generator R&S SMM-B9
●
Option custom digital modulation R&S SMM-K520
●
Option frequency R&S SMM-B1006.
The initial situation is not the instrument's preset state but rather the configuration
described in Chapter 5.1, "Generating an unmodulated carrier", on page 41.
1. In the block diagram, select "Baseband" and navigate to the section "Misc >
Custom Digital Mod...".
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R&S®SMM100A
Trying out the instrument
Generating a digitally modulated signal
The "Custom Digital Modulation" dialog opens.
2. In the "Custom Digital Modulation" dialog, select "General > Set according to
Standard > WCDMA-3GPP".
3. Select "General > State > On" to enable signal generation.
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R&S®SMM100A
Trying out the instrument
Generating a digitally modulated signal
4. Select the "Modulation" tab and observe the used "Modulation Type".
Figure 5-3: Display of the used modulation type
The instrument activates automatically "I/Q Mod", uses the internal trigger and
clock signals, and generates a WCDMA-3GPP signal, modulated with a
QPSK 45° offset modulation.
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R&S®SMM100A
Trying out the instrument
Triggering the instrument with an external signal
Figure 5-4: Block diagram: Generating a digitally modulated signal
5.3 Triggering the instrument with an external sig-
nal
The example configurations are rather theoretical cases, because you rarely use
the R&S SMM100A as a standalone instrument. Usually, the instrument would be
connected to a device under test (DUT) and/or other measurement equipment. As
a rule, whenever a test setup requires two or more devices, provide them with a
common reference frequency. Some test setups require control of the signal generation start and an exact generation start time, determined by a defined trigger
event. For example, by triggering the instrument internally or externally from the
DUT.
This example illustrates the general principle of external triggering and extends
the configuration performed in Chapter 5.2, "Generating a digitally modulated sig-
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R&S®SMM100A
Triggering the instrument with an external signal
nal", on page 44 by the configuration of the required trigger signal and connector
settings.
This test setup requires one signal analyzer, like the R&S®FSW, as additional
equipment.
To start the signal generation synchronous to an external global trigger signal
The configuration requires three main steps with the following goals:
1. Observe the current connector configuration. Define an input connector for the
external global trigger signal.
See "To verify the current connector configuration" on page 48
2. Configure the baseband to use this external global trigger signal as trigger
source.
See "To reconfigure the trigger settings" on page 50
Trying out the instrument
3. Connect the instrument and the external trigger source.
See "To connect the instrument and the external trigger source" on page 52
To verify the current connector configuration
The R&S SMM100A is equipped with multipurpose bi-directional User connectors. Because the signal direction, input or output, and the signal mapping are
configurable, we recommend that you check the current configuration before
cabling or further instrument's configurations.
1. To display an overview of the current mapping of the logical signals to the connectors, perform one of the following:
● In the block diagram, select the Trigger/Marker/Clock status LEDs on the
left side of the "Baseband" block.
● Select "Baseband > Trigger Marker Clock".
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Trying out the instrument
Triggering the instrument with an external signal
The instrument uses its internal trigger and clock signals, and the default mapping of the marker signals to the connectors.
2. To access the related connector settings, perform one of the following:
● Select "Global Connector Settings"
● Tap the connector name, for example select the connector "User 1"
Figure 5-5: Signal mapping to the global connectors
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Triggering the instrument with an external signal
The "Global Connectors" dialog displays the current connectors configuration.
The settings are configurable, but in this example we use the default mapping.
3. Alternatively, select "Block Diagram > Baseband > Misc > Custom Digital
Mod", select the "Trigger In" tab and select "Global Connector Settings".
In the current mapping, the two global connectors User x on the front panel
are configured as follows:
● "Baseband Marker 1/2" are output at the User 1/2 connectors
● The User 3 connector is an input for the "Global Trigger 1" signal.
Find the physical location of each connector
Use the built-in "Trigger Marker Clock > Show " function to display the location of the selected connector. A blinking marker on the front/rear panel view
also indicates the selected connector.
Trying out the instrument
To reconfigure the trigger settings
We assume that the instrument is configured as described in Chapter 5.2, "Gen-
erating a digitally modulated signal", on page 44 and the default connector map-
ping is maintained (see Figure 5-5).
1. In the block diagram, select "Baseband > Misc > Custom Digital Mod > Trigger
In".
2. Select the following settings:
a) "Mode > Armed Auto"
b) "Source > External Global Trigger".
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Triggering the instrument with an external signal
3. Select "Global Connector Settings > Routing".
4. For "User 2", select "Direction > Input" and "Signal > Global Trigger 1".
Trying out the instrument
The instrument expects an external global trigger event. In the current configuration, the "Global Trigger" signal has to be supplied at the input connector
User 2.
The Trigger/Marker/Clock status LEDs in the block diagram confirm that an
external trigger signal is selected; the signal generation is however stopped.
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Trying out the instrument
Triggering the instrument with an external signal
To connect the instrument and the external trigger source
1. Use a suitable cable to connect the external trigger source to the User 2 connector of the R&S SMM100A. See Figure 5-6.
Figure 5-6: Simplified representation of a test setup**
** = The figure depicts the cabling as a general principle; particular test setups do not require
all connections at the same time
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Enabling and configuring a marker signal
The Figure 5-6 depicts the location of the connectors and explains the connection as principle. In practice, you would rather "substitute" the analyzer by
a DUT, like a base station (BS). Other than in the example, the DUT can be
the source for the reference signal. Instead of using an external trigger
source, the DUT can also send, for example, a frame trigger signal to the
R&S SMM100A. The R&S SMM100A acts still as the signal source.
2. Use suitable cables to connect the RF and REF OUT connectors of the
R&S SMM100A to the signal analyzer or the DUT.
Upon the receiving of an external trigger event, the R&S SMM100A starts the
signal generation and then generates a continuous signal. An "Arm" stops the
signal generation. A subsequent trigger event causes a restart of the signal
generation.
To learn more about this topic, refer to:
Trying out the instrument
●
Chapter "Baseband Trigger Signals" in the user manual
●
Chapter "Global Connectors" in the user manual
5.4 Enabling and configuring a marker signal
Test setups often require that an external device is synchronized to the generated
data stream. For this purpose, the R&S SMM100A can output marker signals (or
markers) also to the generated signal. The R&S SMM100A provides several regular marker signals and marker signals specific to the firmware option. With suitable marker settings for instance, you can mark slot or frame boundaries or mark
the start of a particular modulation symbol.
This example extends further the configurations performed in Chapter 5.2, "Gen-
erating a digitally modulated signal", on page 44. We assume a default connector
mapping (see Figure 5-5).
This test setup requires one oscilloscope, like the R&S®RTO, as additional equipment.
1. In the block diagram, select "Block Diagram > Baseband > Misc > Custom
Digital Mod > Marker" tab.
2. Select "Marker Mode > Marker 1 > Pulse" and "Divider = 32".
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Verifying the generated signal with the graphics display
Generated is a periodic marker with marker frequency of 120 KHz. The signal
is output at the User 1 connector of the R&S SMM100A (see Figure 5-5).
3. Use a suitable cable to connect the User 1 connector of the R&S SMM100A to
the monitoring instrument, for example oscilloscope like R&S®RTO. See Fig-
ure 5-7.
Trying out the instrument
Figure 5-7: Simplified representation of a test setup for signal monitoring**
** = The figure depicts the cabling as a general principle
4. Use a suitable cable to connect the I OUT connector of the R&S SMM100A to
the monitoring instrument.
To learn more about this topic, refer to chapter "Regular Marker Output Signals" in the user manual.
5.5 Verifying the generated signal with the graphics
display
It is often useful to check the spectra of the configured signals, before you enable
the RF output of the instrument.
The R&S SMM100A provides a build-in function to represent the generated signal
on a graphical signal display. We demonstrate this feature by showing the characteristics at one particular point of the signal processing chain. You can, however,
display the signal characteristics at other different stages.
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Verifying the generated signal with the graphics display
This example shows you how to use this graphical display to verify the generated
signal. Use the signal generated in Chapter 5.4, "Enabling and configuring a
marker signal", on page 53.
To access the graphical signal display functionality
► Perform one of the following:
a) Select "Taskbar > System Configuration > Graphics"
Trying out the instrument
b) On the "Taskbar", tap the wave icon.
The "Graphics Configuration" dialog opens.
To visualize the signal
1. In the "Graphics Configuration" dialog, select "Mode > Constellation".
2. Select "Source > Baseband".
3. Select "Add" to enable signal display.
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Trying out the instrument
Verifying the generated signal with the graphics display
A new thumbnail (minimized view) indicating the active diagram appears in
the "Taskbar".
4. Press the thumbnail graphic.
The graphic enlarges and the diagram is displayed in a normal size.
The "Constellation Diagram" displays the 3GPP FDD signal.
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5. To retrieve more information, zoom in. In some diagrams you can select
"Show Marker" to measure the distance, for example, between two signals.
In principle, the zoom in function works like the two-finger pinching for magnifying images on your cellphone.
6. In the "Constellation Diagram" dialog, select "Configure" to return to the
"Graphics Configuration" dialog.
Close the "Graphics Configuration" dialog.
This action has no effect on the configured graphics but on the dialog itself.
The block diagram displays the current signal routing. It indicates that frequency and power offsets are enabled and displays the acquisition points for
the real-time diagrams minimized in the "Taskbar".
Trying out the instrument
Saving and recalling settings
5.6 Saving and recalling settings
To restore the results of our measurements later, we save the instrument settings
to a file.
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To save the instrument settings to a file
We assume, a test configuration as described in Chapter 5.4, "Enabling and con-
figuring a marker signal", on page 53.
1. Press the Save/Rcl key on the front panel.
2. In the "Save/Recall" dialog box, select "Operation Mode > Save".
Tap the "Filename", use the on-screen keyboard, and enter MyTestSignal.
Trying out the instrument
Saving and recalling settings
3. Tap the "Save" button.
The file MyTestSignal.savrcltxt is saved in the default directory /var/
user.
To load saved instrument settings
You can restore the settings to the instrument at any time using the settings file.
1. Press the Preset button to restore the default instrument settings so you can
check that the saved user settings are restored afterwards.
2. Press the Save/Rcl key.
3. In the "Save/Recall" dialog, select "Recall" operation.
Navigate to the directory of the saved file. Select the MyTestSignal file.
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Trying out the instrument
Saving and recalling settings
4. Tap the "Recall" button.
All instrument settings are restored and the display resembles the instrument
display right before the settings were saved.
How to display all parameters with values different to their preset values
When you load a file to your instrument and do not have enough information
on the changed settings, visualize all parameters that have been changed
from their default state.
Try out the following:
●
Tap and hold on an empty space in the block diagram to access the contextsensitive menu.
●
Select "Mark All Parameters Changed from Preset".
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●
All changed parameters are highlighted.
Trying out the instrument
Generating an EUTRA/LTE signal
5.7 Generating an EUTRA/LTE signal
The main application field of the R&S SMM100A is the generation of digital signals in accordance with several telecommunication and wireless standards, like
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Generating an EUTRA/LTE signal
WCDMA, EUTRA/LTE or WLAN, to name a few. This example uses the digital
standard EUTRA/LTE to introduce the way you can access and interact with the
instrument and experience the advantages provided by the additional options.
The minimum requirement for R&S SMM100A in this example is a base unit
equipped with:
●
Option baseband generator R&S SMM-B9
●
Option EUTRA/LTE R&S SMM-K55
●
Option frequency R&S SMM-B1006
To generate a downlink test signal
The main focus of the following example is not on the R&S SMM100A capabilities
and the features provided by the firmware option. The example aims rather to
help you get familiar with the settings and configuration principle common for the
digital standards.
Trying out the instrument
We use one of the provided EUTRA test models (E-TM) to show how to generate
a test signal upon a quick selection.
1. On the R&S SMM100A front panel, press the Preset key to start out in a
defined instrument configuration.
2. In the block diagram, select "Baseband > Beyond 3G Standards > EUTRA/
LTE".
The EUTRA/LTE dialog appears and displays the general settings provided for
the digital standard.
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Trying out the instrument
Generating an EUTRA/LTE signal
As in the user interfaces of all digital standards, the "EUTRA/LTE" dialog is
divided into several tabs. The "General" tab comprises the primary settings of
the standard, the functions for storing and recalling settings and provides
access to further functions and dialogs, like the "Filter" settings. The "Trigger
In", "Marker" and "Clock" tabs comprise the settings related to the corresponding function.
The more complex the digital standard itself is, the more comprehensive the
further dialog and tab structure. The start dialog of each digital standard, however, follows a repeating dialog structure that comprises the tabs "General",
"Trigger In", "Marker" and "Clock". (See also Chapter 7.3.4, "Additional display
characteristics", on page 77).
Tip: To display the dialog in its maximal height, press the Resize window key
on the front panel.
3. In the "EUTRA/LTE General" tab, select "Test Models".
The test models is a function for quick selection and settings adjustment
according to one of the various EUTRA test models (E-TM).
A standard "File Select" function enables you to select form files with predefined settings.
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Trying out the instrument
Generating an EUTRA/LTE signal
Tip: On the front panel, press the Help key to retrieve detailed information on
the current settings and on the contents of the predefined files.
4. Navigate to a file, for example to the E-TM1_1__10MHz (an E-TM1.1 test
model with 10 MHz channel bandwidth) and confirm with "Select".
The dialog closes automatically and the user interface confirms the name of
the selected file.
5. In the "EUTRA/LTE > General" tab, select "State > On".
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Generating an EUTRA/LTE signal
Close the dialog.
6. On the "Status Bar", tap the "Frequency" and "Level" fields and enter new values, for example 2.1432 GHz and -20 dBm.
Select "RF > On".
Trying out the instrument
The instrument generates an EUTRA/LTE test signal with the selected channel bandwidth, frequency, and level.
With these first steps, you have gained an impression of the provided functionality.
For a comprehensive description of the full range of capabilities, refer to the
user manual "EUTRA/LTE Digital Standard for R&S SMM100A".
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System overview
Signal flow at a glance
6 System overview
This section helps you to get familiar with the R&S SMM100A. It provides an
introduction to the general concept of the instrument. This section also introduces
the main blocks in the signal generation flow.
For information on how to access functions and interact with the R&S SMM100A,
refer to Chapter 7, "Instrument control", on page 71.
6.1 Brief introduction to the instrument's concept
The R&S SMM100A offers excellent RF and baseband characteristics. The baseband section of the R&S SMM100A is fully digital. It contains the hardware for
generating and processing I/Q signals in realtime or generating signals with an
arbitrary waveform generator.
6.2 Signal flow at a glance
The R&S SMM100A is equipped with a large touchscreen, that displays a block
diagram. The block diagram represents the signal flow and the general stages the
signal generation goes through. Depending on the options the R&S SMM100A is
equipped with, the appearance of the block diagram changes.
The following examples do not cover all possible cases but aim to introduce the
way the block diagram depicts the installed options.
●
An example of a base unit, equipped with R&S SMM-B1006.
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●
An example of a fully equipped instrument.
The block diagram displays all blocks for that the required hardware and software options are fitted. The block diagram shows the signal flow as it is.
System overview
Signal flow at a glance
The cross-reference between the installed options and the displayed settings
The Table 6-1 is an excerpt of the available options and lists only the options
required to display a functional block in the block diagram. The information
assumes R&S SMM100A base unit.
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System overview
Internal baseband source ("Baseband" block)
For exact information on the available options, and on the minimum requirements
and the interdependencies between the provided options, refer to the
R&S SMM100A data sheet.
Table 6-1: Required options per functional block (excerpt)
Functional block Required option
"Baseband" R&S SMM-B9
"BB Input" -
"AWGN" R&S SMM-K62
"I/Q Stream Mapper" -
"I/Q Mod" e.g., R&S SMM-B1006
"I/Q Analog" e.g., R&S SMM-B1006
"I/Q Digital" -
"RF" e.g., R&S SMM-B1006
6.3 Internal baseband source ("Baseband" block)
The "Baseband" block represents the source of the baseband signals (basebands).
This functional block is the access point to:
●
The internal baseband generator
The baseband generator contains modules for real time signal generation
(Custom Digital Modulation) and an arbitrary waveform generator (ARB).
●
The available digital standards
Generation of digital signals in accordance with the supported standards
requires additional software options. For example, option R&S SMM-K55 generates signals according to the EUTRA/LTE standard.
●
The baseband offsets function
Signals from the baseband generator can be shifted in frequency and phase,
or boosted in power.
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I/Q modulator ("I/Q mod" block)
System overview
6.4 Digital baseband input ("BB input"Block)
The "BB Input" block is the access point to the settings of the digital interfaces.
The R&S SMM100A is able to receive and process digital baseband signals. The
digital baseband input can be used together with other Rohde & Schwarz instruments, like signal generators. Note, however, that the internal and the external
digital signals cannot be used simultaneously. The two blocks "Baseband" and
"BB Input" deactivate each other.
The "BB Input" block is the access point to the settings of:
●
The external digital I/Q signals
The external digital I/Q signals are further processed in the baseband section
●
The baseband offsets function
The external and internal baseband signals can be shifted in frequency and
phase, or boosted in power.
6.5 Additional white gaussian noise ("AWGN"
block)
The "AWGN" block is displayed only in instruments equipped with the option
R&S SMM-K62. This block controls the additional white Gaussian noise generator
(AWGN). An additive white noise is required for measurements of mobile radio
base stations.
6.6 "I/Q stream mapper" block
As one of the access points to the system configuration settings, the "I/Q Stream
Mapper" provides direct access for mapping the generated I/Q streams to the
available output connectors. That is, to the analog RF and I/Q output connectors.
6.7 I/Q modulator ("I/Q mod" block)
The "I/Q Mod" block represent the I/Q modulator.
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Applications examples of the R&S SMM100A
This functional block is the access point to:
●
The I/Q modulation of the internal baseband signal
●
The I/Q modulation of an external single-ended analog wideband signal
●
The analog I/Q impairments
System overview
6.8 Analog I/Q output ("I/Q analog" block)
The "I/Q Analog" block represents the analog I/Q output connectors.
This block is the access point to the settings of:
●
The analog I/Q output signals
The generated signal can be output as single-ended or differential analog signal.
●
The analog I/Q impairments
6.9 RF and analog modulations ("RF" block)
The "RF" block represents the RF settings of the instrument.
This block is the access point to:
●
RF frequency and level settings, as well as the reference frequency, local
oscillator, user correction, etc.
●
The analog modulations
●
The list and sweep modes
6.10 Applications examples of the R&S SMM100A
The R&S SMM100A can be optimally adapted to the requirements of different
applications:
●
Generation of digitally modulated signal
The main field of application of the R&S SMM100A is the generation of digitally modulated signals. The R&S SMM100A generates a digitally modulated
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Applications examples of the R&S SMM100A
signal in several ways: using the internal baseband generator, using the externally applied digital baseband signals or in an analog wideband I/Q operation.
●
Generation of a wanted signal or an interfering signal for receiver tests
●
Generation of signals with up to 500 MHz signal bandwidth
System overview
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Possible ways to operate the instrument
Instrument control
7 Instrument control
This chapter provides an overview on how to work with the R&S SMM100A.
It covers the following topics:
● Possible ways to operate the instrument........................................................ 71
● Means of manual interaction...........................................................................72
● Understanding the display information............................................................73
● Accessing the functionality..............................................................................79
● Entering data...................................................................................................80
● Getting information and help...........................................................................82
● Remote control................................................................................................84
● Remote operation over VNC...........................................................................85
7.1 Possible ways to operate the instrument
There are three ways to operate the R&S SMM100A:
●
Manual operation:
Use the touchscreen, hard keys and rotary knob, or an optional mouse and/or
keyboard.
The following description shows how to operate the instrument manually.
●
Remote control:
Create programs to automatize repeating settings, tests and measurements.
The instrument is connected to a computer running the program.
This way of operation is described in the user manual, chapter "Network and
Remote Control Operation".
●
Remote operation from a computer:
Remote monitoring and control of the instrument from a connected computer
is based on the common cross-platform technology VNC (Virtual Network
Computing). On the remote computer, any standard web browser (supporting
Java) or a dedicated VNC client (like Ultr@VNC) can be used. See also Chap-
ter 7.8, "Remote operation over VNC", on page 85.
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Means of manual interaction
Instrument control
7.2 Means of manual interaction
For the manual interaction with the R&S SMM100A, you have several methods
that you can use as an alternative to perform a task:
●
Touchscreen:
Touchscreen operation is the most direct way to interact. Almost all control
elements and actions on the screen are based on the standard operating system concept. You can tap any user interface element to set parameters in dialog boxes, enter data, scroll within a dialog etc., as if you work with a mouse
pointer.
Tapping the screen works like clicking mouse buttons:
– Touch quickly = click: Selects a parameter or provokes an action.
– Touch and hold = right-click: Opens a context-sensitive menu.
– Touch and swipe = drag: Scrolls through the contents of a display element
larger than the screen, e.g. a list or a table.
– Spread or pinch two fingers = zoom out, zoom in:
Increases or decreases the size of an area in a graphical display as it
works on your cell phone
●
Function keys and rotary knob:
The front panel provides nearly all functions and controls to operate the instrument in the classic way, without touchscreen.
●
Optional mouse and/or keyboard:
These devices work like known from PCs. The navigation keys on the front
panel correspond to the keys on the keyboard.
This manual describes the manual interaction with the instrument via the touchscreen. It mentions the alternative methods using the keys on the instrument or
the on-screen keypads if it deviates from the standard operating procedures. The
usage of the touchscreen and navigation keys is described in Chapter 7.4,
"Accessing the functionality", on page 79.
Throughout the manual, the term "select" refers to any of the following methods:
●
Using a finger on the touchscreen
●
Using a mouse pointer in the display
●
Using a key on the instrument or on a keyboard
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Instrument control
Understanding the display information
7.3 Understanding the display information
The block diagram of the R&S SMM100A displays all main settings and generator
states, divided into three main operation areas.
1
2
3
Figure 7-1: Block diagram
1 = Status bar (frequency and level display)
2 = Block diagram
3 = Taskbar/softkey bar
● Status bar........................................................................................................74
● Block diagram................................................................................................. 74
● Taskbar............................................................................................................76
● Additional display characteristics.................................................................... 77
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Instrument control
Understanding the display information
7.3.1 Status bar
The status bar at the top of the screen indicates the RF frequency and the level of
the output signal provided to the DUT. You can set both parameters directly here.
1 2 3
1 = Frequency display
2 = Status buttons
3 = Level display
The status buttons indicate key parameters that are set for the output signal. Most
of the status buttons are virtual keys you can use to open a corresponding menu
or dialog.
7.3.2 Block diagram
The block diagram shows the current configuration and the signal flow in the generator with the aid of function blocks, connected by signal lines.
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3 4 5 6 7 8 9
2
1
Instrument control
Understanding the display information
10
11
12
Baseband domain, digital
1, 10, 12 = Connector icons (RF, analog, digital)
2, 9 = Control signal block
3 = Status indicator
4 = Functional block
5, 7 = Graphics indicator
6 = Signal line (digital)
8 = Signal line (analog)
11, 13 = Stream indicator
RF domain, analog
Starting from left up to the "I/Q Stream Mapper", you can see the functional
blocks provided in the baseband domain. After the stream mapper, the analog
section contains the digital to analog conversion and modulation to RF.
13
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Legend Item Description
Instrument control
Understanding the display information
1
10
12
2
9
3 Status indicator Indicates whether the signal is running or waiting for a
4 Functional block Represents a basic task in signal generation.
5
7
Connector icons Represent the interfaces for signal input and output:
●
Digital I/Q signal connector input (1)
●
RF signal connector output (10)
Icons vary depending on the frequency.
●
Analog I/Q signal connector output (12)
Control signal block Indicates information on the control signals like signal
content, input or output and provides quick access to the
corresponding configuration dialog.
A dedicated control block is displayed to the left of the
baseband block (2) and above the RF block (9).
trigger.
The push button provides access to any number of associated actions to accomplish the task.
"On/Off" (checkbox) and the block label quickly activates
the basic task.
Graphics indicator Denotes that the signal is displayed graphically:
Baseband signal (5), stream signal (7)
6, 8
11
13
Signal line
●
digital
●
analog
Stream indicators Indicates the output stream "A" that is routed to the RF
Shows the currently configured signal flow:
●
Thick lines represent digital I/Q streams (6).
●
Thin lines represent analog signals (8).
connector (11) or analog I/Q out connector (13)
7.3.3 Taskbar
The "Taskbar" contains labeled softkeys and minimized views (thumbnails) of
active graphics and dialogs.
Initially, it shows the permanently assigned softkeys. The softkey with the sine
wave denotes that no signal is activated for graphical representation.
Figure 7-2: Taskbar in default state
Whenever you open a settings or graphics dialog, it is automatically assigned to
the "Taskbar". The softkeys shown in the following figure represent the variants.
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Instrument control
Understanding the display information
1 2 3 4 5
Figure 7-3: Taskbar fully assigned
1 = System configuration
2 = Remote control connections
3 = Graphics
4 = Dialogs
5 = Diagram / more
1 System Config Provides access to general system configurations
like setup, display, or remote.
2 Remote Shows the established remote connections when
the instrument is remotely controlled.
Tip: An indicator in the status bar shows the current
remote control status.
3 Graphics Shows that a signal is represented graphically.
4 Dialogs Shows a dialog as a thumbnail, the dialog name,
and the name of signal channel.
5 Diagram / more The diagram icon as shown in Figure 7-2 minimizes
all dialogs indicated on the screen. The block diagram is in the foreground.
The "More" softkey indicates that more dialogs are
open than can be displayed in the taskbar. Use this
softkey to open a selection list with the remaining
active dialogs, and the "Diagram" function.
7.3.4 Additional display characteristics
The following section provides a short insight on the indication of the screen in
general, and significant elements that you see under specific operating modes, in
dialogs or settings.
●
Appearance of active elements
– Active elements like On/Off switches, state buttons have a blue back-
ground.
– Selected elements are framed or highlighted orange.
– Inactive elements are gray.
●
On-Screen keypads
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Instrument control
Understanding the display information
As additional means of interacting with the instrument without having to connect an external keyboard, either a numerical or alphanumerical on-screen
keypad appears when you activate an entry field (see Chapter 7.5, "Entering
data", on page 80).
●
Info line
The "Info line" shows brief status information and error messages. It appears
when an event generates a message. If selected, the R&S SMM100A shows
information on static errors and the error history.
●
Key parameters indicated in tab labels
Most dialogs are divided into tabs with logically grouped parameters. The tab
label expresses the content and can also contain status indicators or the set
value of a key parameter.
1
1
2 2
1 = Status indicators
2 = Key parameter values
●
Scroll bar handle
An arrow icon that appears when you touch a scroll bar helps you to scroll in a
dialog or list.
●
Progress indicators
A busy icon indicates a currently running process. If a process takes some
time, a progress bar shows the current state.
●
Context-sensitive menus
Within the entire screen display, including single parameters, you can access
context-sensitive menus that provide some additional functions.
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Instrument control
Accessing the functionality
7.4 Accessing the functionality
All functionalities are provided in dialog boxes as known from computer programs. You can control the instrument intuitively with the touchscreen. This section provides an overview of the accessing methods.
The instrument's functions and settings can be accessed by selecting one of the
following elements:
●
System and function keys on the front panel of the instrument
●
Taskbar/softkeys on the touchscreen
●
Context-sensitive menus for specific elements on the touchscreen
●
Elements on the status bar in the touchscreen
●
Displayed setting on the touchscreen, that means block diagram and all settings available in dialogs.
To open a dialog box
► Perform one of the following actions:
● Tap the required block, and then the menu entry.
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● Tap the minimized view (thumbnail) on the taskbar.
Some of the utility keys access a dedicated dialog, too.
To minimize a dialog box
► Tap the "Minimize" icon in the upper right corner.
To close a dialog box
To close a dialog box, you have the same controls as you know from computers
or devices with touchscreen.
► Perform one of the following actions:
● Tap the "Close" icon in the upper right corner.
● Press the [Esc] key on the front panel.
● Drag and drop a minimized dialog from the taskbar to the block diagram.
Instrument control
Entering data
To select an option in a dialog box
► Tap the required option.
To select an option in a list
If many options are available - for example, for the trigger mode - the options are
provided in a list. The current selection is shown on the list button.
1. Tap in the list.
2. To navigate through the list, try out the following:
● Using a mouse, scroll in the list, tap the required option.
● Use the rotary knob.
● Use [On/Off Toggle] key to select the succeeding option
● Use the front panel keys:
a) Press the [Left/Right] arrow keys to navigate to the list button.
b) Press the [Enter] key to open the list.
c) Press the [Up/Down] keys to navigate to the required option in the list.
d) Press the [Enter] key to select the marked option.
7.5 Entering data
Some parameters have their own key on the front panel.
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For data input in dialog boxes, the instrument provides on-screen keypads for
entering numeric and alphanumeric values. Thus, you can always set the parameters via the touchscreen, the front panel, or an external keyboard.
To correct an entry
1. Using the arrow keys, move the cursor to the right of the entry you want to
delete.
2. Press the [Backspace] key.
3. Deletes the entry to the left of the cursor.
4. Enter your correction.
To complete the entry
Instrument control
Entering data
► Press the [Enter] key or the rotary knob.
To abort the entry
► Press the [Esc] key.
The dialog box closes without changing the settings.
7.5.1 Entering numeric parameters
To enter values with the on-screen keypad
For numeric settings, the instrument displays the numeric keypad. The units
specified correspond to the units of the parameter.
1. Enter the numeric value.
Tip: For quick entry, you can enter a value in exponential representation, e.g.
1e7 for 10000000.
2. Tap the unit button to complete the entry.
The unit is added to the entry.
Tip: For quick unit change, you can enter shortcuts, e.g. for a frequency value
1e8h for 100 MHz.
For an overview of shortcuts supported by the R&S SMM100A, see chapter
"Unit Shortcuts" in the appendix of the user manual.
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Getting information and help
3. If the parameter does not require a unit, confirm the entered value by pressing
"Enter".
To enter values by using the front panel controls
1. Change the currently used parameter value by using the rotary knob or the
[Up/Down] keys.
2. If the parameter does not require a unit, confirm the entered value by pressing
the [Enter] key or any of the unit keys.
The instrument highlights the editing line to confirm the entry.
If you edit numeric data in tables, the entry field must be in edit mode: Press
[Enter], or the rotary knob to activate the edit mode.
Instrument control
7.5.2 Entering alphanumeric parameters
If a field requires alphanumeric input, you can use the on-screen keyboard to
enter letters and (special) characters.
7.5.3 Undo and redo actions
Accessed via the context-sensitive menus, "Undo" allows you to restore one or
more actions on the instrument. Depending on the available memory, the "Undo"
steps can restore all actions.
"Redo" restores a previously undone action.
7.6 Getting information and help
In some dialog boxes, graphics are included to explain the way a setting works.
For further information, you can use the following sources:
●
Tooltips give the value range of the parameter.
●
The context help provides functional description on a setting.
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Getting information and help
●
The general help explains a dialog box, provides instructions, and general
information.
To display context help
► To access a help topic, perform one of the following:
a) Tap and hold the parameter for which you need information and tap "Help"
in the context menu.
b) Tap the parameter and press the [Help] key.
The "Help" dialog opens. You can browse the help for further information.
Instrument control
Contents of the help dialog box
The help dialog box covers two main areas:
●
"Contents" - contains a table of help contents
●
"Topic" - contains a specific help topic
The help system also provides an "Index" and a "Find" area, and "Zoom" functions that are accessed via the corresponding buttons.
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To open general help
► Press the yellow [Help] key on the front panel.
If a dialog box is opened, the help topic for the current tab is shown. Otherwise the "Contents" page appears.
Navigating in the table of contents and in the help topics
1. To move through the displayed contents entries, tap on an entry and scroll or
use a connected mouse or the [Up/Down] keys.
Entries with a plus sign contain further entries.
2. To display a help topic, tap on the topic name or double-click the topic name
or press the [Enter] key.
3. To follow a cross-reference, tap on the link text.
4. To return to the previous page, select "Back".
This function scrolls back all steps you have performed before.
Instrument control
Remote control
5. Use the "scroll bars" to shift the visible section of content shown.
6. To maximize the "Topics" area, tap the "Hide Contents Tree" button to hide the
contents tree.
Using the index
1. Select the "Index" button.
2. Enter the first characters of the topic you are interested in.
The entries starting with these characters are displayed.
3. Tap on the index entry.
The corresponding help topic is displayed.
7.7 Remote control
In addition to working with the R&S SMM100A interactively, located directly at the
instrument, it is also possible to operate and control it from a remote PC.
The R&S SMM100A supports various methods for remote control:
●
Connecting the instrument to a LAN (see Chapter 3.7, "Connecting to LAN",
on page 18)
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Remote operation over VNC
●
Using the LXI browser interface in a LAN
●
Connecting a PC via the IEC-bus (IEEE 488) interface
●
Remote control via the USB interface
For remote control over LAN or USB, you can use the R&S VISA (Virtual
Instrument Software Architecture) library provided for download at the
Rohde & Schwarz website http://www.rohde-schwarz.com/rsvisa.
How to configure the remote control interfaces is described in the user manual,
chapter "Network and Remote Control Operation".
Instrument control
7.8 Remote operation over VNC
The VNC is an application which can be used to access and control the instrument from a remote computer through a LAN connection. While the instrument is
in operation, the instrument screen contents are displayed on the remote computer, and VNC provides access to all applications, files, and network resources
of the instrument. Thus, remote operation of the instrument is possible.
Instrument control from a remote computer
To access the basic utility functions of the R&S SMM100A, perform a right
mouse click the block diagram and select "Key Emulation".
A key panel to the right of the block diagram gives access to the utility functions provided by the front panel keys.
The VNC is an add-on program, included in operating system Linux/Unix, and
available as a free-of-charge download on the internet.
For more information, refer to the R&S SMM100A user manual, chapter "How to
Set Up Remote Operation via VNC".
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Contacting customer support
8 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 fol-
low this QR code:
Figure 8-1: QR code to the Rohde & Schwarz support page
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Index
Index
A
Active elements ....................................... 77
Alphanumeric parameters ....................... 82
ARB ......................................................... 67
Arrow keys ...............................................31
B
Baseband
Input ....................................................68
Baseband generator ................................67
BB Input ...................................................68
Bench top, placing ...................................14
Block diagram
Display ................................................ 74
C
Carrying the instrument ........................... 13
Checking the instrument ..........................13
Connecting
Keyboard ............................................ 19
LAN .....................................................18
Memory stick .......................................19
Mouse ................................................. 19
Power ..................................................18
To HS Dig I/Q ...................................... 23
To LO In/LO Out ..................................22
To Ref In/Ref Out ................................ 22
To RF .................................................. 20
USB devices ....................................... 19
Connector
AC power supply .................................38
Adv. Clk. ..............................................40
Adv. Trg. ..............................................40
CLOCK ............................................... 39
Control signal ......................................40
Data .................................................... 40
DIFF I/Q .............................................. 40
Differential output ................................40
Digital IQ ............................................. 38
Display ................................................ 38
DVI ......................................................38
EFC .....................................................37
GPIB ................................................... 37
High-speed digital IQ .......................... 39
I ...............................................32, 36, 40
I Bar .................................................... 40
IEC/IEEE .............................................37
Inst Trig ...............................................39
LAN .....................................................38
LO In ................................................... 37
LO Out ................................................ 37
MARKER ............................................ 39
Mod Ext ...............................................39
Q ............................................. 32, 36, 40
Q Bar .................................................. 40
Ref In .................................................. 36
Ref Out ............................................... 36
RF ................................................. 32, 36
Sensor ................................................ 33
Single-ended output ............................40
Synchronization .................................. 40
T/M ......................................................39
T/M/C .................................................. 39
TRIGGER ........................................... 39
USB .............................................. 33, 38
USB Device ........................................ 38
User .................................................... 33
USER ..................................................37
Connectors .............................................. 34
Context-sensitive menu ...........................77
Custom Digital Modulation ...................... 67
Customer support ....................................86
D
Data entry ................................................80
Dialog boxes ............................................79
Digital standard ....................................... 67
Display
Active elements .................................. 77
Block diagram ..................................... 74
Context-sensitive menu ...................... 77
Info line ............................................... 77
Information ..........................................73
On-screen keypad .............................. 77
Status bar ........................................... 74
Tab labels ............................................77
Taskbar ............................................... 76
Display port
Connector (for future use) ...................38
DVI
Connector (for future use) ...................38
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Index
E
Emulating front panel keys ...................... 85
F
Firmware options
see Software options .......................... 67
Function keys
Details - see user manual ................... 29
Overview .............................................29
H
Hard disk drive ........................................ 38
Head panel
see Status bar .....................................27
Header
see Status bar .....................................27
Help ......................................................... 83
Hotspot .................................................... 76
I
Info line ....................................................77
Input connector ..........32, 33, 36, 37, 38, 39
Instrument
Carrying .............................................. 13
Checking .............................................13
Lifting .................................................. 13
Operating site ..................................... 14
Unpacking ...........................................13
Instrument control ....................................71
K
Key
★ (User) .............................................. 29
Access on a remote computer ............ 85
Backspace .......................................... 30
Diagram .............................................. 29
Down ...................................................31
Emulation ............................................85
Enter ................................................... 30
Esc ................................................30, 32
Freq .................................................... 29
HCOPY ............................................... 28
Help .................................................... 28
Info ......................................................28
INSERT ...............................................30
Left ......................................................31
Level ................................................... 29
Local ................................................... 28
Mod on/off ...........................................29
Next window ....................................... 32
On/Off Toggle ......................................29
On/Standby .........................................29
Preset ................................................. 28
Resize window ....................................32
RF on/off ............................................. 29
Right ................................................... 31
Save/Rcl ............................................. 28
Setup .................................................. 28
Up ....................................................... 31
Keyboard
On-screen ........................................... 80
Usage ................................................. 72
Keypad
On-screen ........................................... 80
Overview .............................................30
L
LAN
Connecting ..........................................18
Environment ........................................18
LF out
Connector ........................................... 40
Lifting the instrument ............................... 13
Loading
Trying out ............................................58
M
Manual interaction ................................... 72
Mounting, in a rack .................................. 16
Mouse
Usage ................................................. 72
N
Navigation keys ....................................... 31
Network
Environment ........................................18
Numeric data entry .................................. 80
Numeric parameters ................................81
O
On-screen keyboard ................................82
On-screen keypad ................................... 77
Operating site
Choosing .............................................14
Setting up the instrument ....................14
Operation
Manual ................................................ 72
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Index
Option
R&S SMM-B9 ..................................... 39
R&S SMM-K16 ................................... 40
R&S SMM-K17 ................................... 40
Options
see User Manual .................................67
Output connector .......33, 36, 37, 38, 39, 40
Output connectors
RF ....................................................... 32
P
Parameters
Entering ........................................ 81, 82
Placing, on a bench top ...........................14
Power
Connecting the instrument ..................18
Power on
Key ......................................................29
Power supply
Connector ........................................... 38
Preparing for use .....................................13
R
Rack installation ...................................... 36
Rack, mounting ....................................... 16
Remote access
see Remote operation from a computer
............................................................ 71
Remote control ........................................ 84
Remote operation ....................................85
RF connector ...........................................32
Rotary knob ............................................. 31
System drive
Hard disk, HDD ...................................38
Solid state, SSD ..................................38
T
Tab labels ................................................ 77
Text entry ................................................. 80
Tooltips
Show ...................................................83
Touchscreen
Compared with mouse ........................72
Overview .............................................27
Usage ................................................. 72
U
Unpacking the instrument ........................13
Utility keys
Details - see user manual ................... 28
Overview .............................................28
V
VNC
Using in a LAN ....................................85
S
Safety instructions ..................................... 7
Saving
Trying out ............................................57
Serial number .......................................... 34
Softkey bar
see Taskbar ........................................ 76
Software options ......................................67
Solid-state drive .......................................38
Standby
Key ......................................................29
Status bar
Display ................................................ 74
Switching
On or off ..............................................24
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