®
R&S
NRX
Power Meter
Getting Started
(>HÔÔ2)
1424707002
Version 09
This document describes the following R&S®NRX models and options:
●
R&S®NRX (1424.7005K02)
●
R&S®NRX-B1 (1424.7805K02)
●
R&S®NRX-B4 (1424.8901K02)
●
R&S®NRX-B8 (1424.8301K02)
●
R&S®NRX-B9 (1424.8601K02)
●
R&S®NRX-K2 (1424.9208K02)
●
R&S®NRX-K4 (1424.9308K02)
© 2021 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1424.7070.02 | Version 09 | R&S®NRX
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g.
R&S®NRX is indicated as R&S NRX.
R&S®NRX
Contents
1 Safety and regulatory information....................................... 5
1.1 Safety Instructions................................................................................5
1.2 Labels on the product.......................................................................... 8
1.3 Warning messages in the documentation..........................................8
1.4 Korea certification class B...................................................................9
2 Documentation overview.................................................... 10
2.1 Getting started manual.......................................................................10
2.2 User manual........................................................................................ 10
Contents
2.3 Instrument security procedures........................................................ 10
2.4 Printed safety instructions.................................................................10
2.5 Data sheets and brochures................................................................ 11
2.6 Release notes and open source acknowledgment (OSA)...............11
3 Key features......................................................................... 12
4 Preparing for use................................................................. 13
4.1 Lifting and carrying............................................................................ 13
4.2 Unpacking and checking....................................................................13
4.3 Choosing the operating site.............................................................. 14
4.4 Setting up the product........................................................................14
4.4.1 Placing the product on a bench top...................................................... 14
4.4.2 Mounting the product in a rack..............................................................16
4.5 Considerations for test setup............................................................ 16
4.6 Connecting to power.......................................................................... 17
4.7 Connecting power sensors................................................................18
4.7.1 Sensor connectors A to D..................................................................... 18
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4.7.2 Optional interface for R&S NRT-Z sensors (R&S NRX-B9).................. 19
4.7.3 LAN interface........................................................................................ 20
4.7.4 USB 2.0 host interfaces........................................................................ 21
4.8 Connecting USB and external devices............................................. 21
4.9 Switching on or off............................................................................. 21
Contents
5 Instrument tour.................................................................... 23
5.1 Front panel tour.................................................................................. 23
5.1.1 Sensor connectors A and B.................................................................. 23
5.1.2 Module bay........................................................................................... 24
5.1.3 Touchscreen..........................................................................................25
5.1.4 Keys...................................................................................................... 25
5.1.5 USB host interface................................................................................ 27
5.1.6 On/standby key..................................................................................... 27
5.2 Rear panel tour....................................................................................28
5.2.1 Trig In / Out 2 and Out 1 / Trig Out connectors..................................... 28
5.2.2 Ethernet interface..................................................................................29
5.2.3 USB device interface............................................................................ 29
5.2.4 USB host interface................................................................................ 29
5.2.5 AC supply and power switch.................................................................29
5.2.6 IEC 625/IEEE 488 interface.................................................................. 30
5.2.7 Name plate............................................................................................30
5.2.8 Sensor connectors C and D..................................................................31
6 Contacting customer support............................................ 32
Index..................................................................................... 33
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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
Combined with the supported R&S power sensors, the R&S NRX base unit is
intended for power measurements in development and production. The supported
R&S power sensors are listed in the data sheet. Observe the operating conditions
and performance limits stated in the data sheet.
Target audience
The target audience is developers and technicians. The required skills and experience in power measurements depend on the used operating concept. While
manual operation is suitable for beginners, remote control requires expertise in
power measurements.
Depending on the used R&S power sensor, the applications vary greatly. A profound knowledge of the intended application and test setup is recommended.
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 5. 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.
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R&S®NRX
Use the product only for its intended use and within its performance limits. Intended use and limits are described in the product documentation such as the data
sheet, manuals and the printed "Safety Instructions". If you are unsure about the
appropriate use, contact Rohde & Schwarz customer service.
Using the product requires specialists or specially trained personnel. These users
also need sound knowledge of at least one of the languages in which the user
interfaces and the product documentation are available.
Never open the casing of the product. Only service personnel authorized by
Rohde & Schwarz are allowed to repair the product. If any part of the product is
damaged or broken, stop using the product. Contact Rohde & Schwarz customer
service at http://www.customersupport.rohde-schwarz.com.
Lifting and carrying the product
The maximum weight of the product is provided in the data sheet. To move the
product safely, you can use lifting or transporting equipment such as lift trucks
and forklifts. Follow the instructions provided by the equipment manufacturer.
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.
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R&S®NRX
If stacking is possible, keep in mind that a stack of products can fall over and
cause injury.
If you mount products in a rack, ensure that the rack has sufficient load capacity
and stability. Observe the specifications of the rack manufacturer. Always install
the products from the bottom shelf to the top shelf so that the rack stands
securely. Secure the product so that it cannot fall off the rack.
Connecting to power
The product is an overvoltage category II product. Connect the product to a fixed
installation used to supply energy-consuming equipment such as household
appliances and similar loads. Keep in mind that electrically powered products
have risks, such as electric shock, fire, personal injury or even death.
Take the following measures for your safety:
●
Before switching on the product, ensure that the voltage and frequency indicated on the product match the available power source. If the power adapter
does not adjust automatically, set the correct value and check the rating of the
fuse.
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®NRX
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.
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 the product
Labels on the casing inform about:
●
Personal safety, see "Meaning of safety labels" on page 8
●
Environment safety, see Table 1-1
●
Identification of the product, see Chapter 5.2.7, "Name plate", on page 30.
Table 1-1: Labels regarding 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.
WARNING
Potentially hazardous situation. Could result in death or serious injury if not avoided.
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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
Korea certification class B
1.4 Korea certification class B
이 기기는 가정용(B급) 전자파 적합기기로서 주로 가정에서 사용하는 것을 목적으
로 하며, 모든 지역에서 사용할 수 있습니다.
9Getting Started 1424.7070.02 ─ 09
R&S®NRX
Documentation overview
Printed safety instructions
2 Documentation overview
This section provides an overview of the R&S NRX user documentation. Unless
specified otherwise, you find the documents on the R&S NRX product page at:
www.rohde-schwarz.com/manual/NRX
2.1 Getting started manual
Introduces the R&S NRX and describes how to set up and start working with the
product. A printed version is delivered with the instrument.
2.2 User manual
Contains the description of all instrument modes and functions. It also provides
an introduction to remote control, a complete description of the remote control
commands with programming examples, and information on maintenance, instrument interfaces and error messages. Includes the contents of the getting started
manual .
The user manual is provided on the R&S NRX for download under:
[System] > "Instrument Info" > "Help & Copyrights"
2.3 Instrument security procedures
Deals with security issues when working with the R&S NRX in secure areas. It is
available for download on the Internet.
2.4 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with the product.
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R&S®NRX
Release notes and open source acknowledgment (OSA)
Documentation overview
2.5 Data sheets and brochures
The data sheet contains the technical specifications of the R&S NRX. It also lists
the firmware applications and their order numbers, and optional accessories.
The brochure provides an overview of the instrument and deals with the specific
characteristics.
See www.rohde-schwarz.com/brochure-datasheet/NRX
2.6 Release notes and open source acknowledgment (OSA)
The release notes list new features, improvements and known issues of the current firmware version.
The open source acknowledgment and the license texts of open source software
packages used in the R&S NRX software are provided under:
[System] > "Instrument Info" > "Help & Copyrights"
See www.rohde-schwarz.com/firmware/NRX
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R&S®NRX
Key features
3 Key features
The R&S NRX supports:
●
Easy RF power measurements
●
Multi-channel measurements
●
RF pulse analysis
●
System integration
The R&S NRX is a versatile, user-friendly base unit.
●
Straightforward numerical and graphical display of measured values, plus
intuitive operation with touchscreen-based graphical user interface
●
Supports up to four R&S NRP and R&S NRQ6 power sensors.
●
Supports all sensor-dependent measurement functions
●
Hardware interfaces for remote control and triggering
●
Code emulation of the R&S NRP2
●
Optional high-precision CW and pulse mode reference source module
●
Optional power reflection measurements with R&S NRT‑Zxx directional power
sensors
See also the R&S NRX fact sheet at www.rohde-schwarz.com.
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R&S®NRX
Unpacking and checking
Preparing for use
4 Preparing for use
Here, you can find basic information about setting up the product for the first time.
● Lifting and carrying..........................................................................................13
● Unpacking and checking................................................................................. 13
● Choosing the operating site............................................................................ 14
● Setting up the product..................................................................................... 14
● Considerations for test setup.......................................................................... 16
● Connecting to power....................................................................................... 17
● Connecting power sensors..............................................................................18
● Connecting USB and external devices............................................................21
● Switching on or off...........................................................................................21
4.1 Lifting and carrying
See "Lifting and carrying the product" on page 6.
The R&S NRX weighs below 3 kg, details are provided in the data sheet. Due to
the low weight, you can move the R&S NRX easily.
4.2 Unpacking and checking
1. Unpack the product carefully.
2. Retain the original packing material. Use it when transporting or shipping the
product later.
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®NRX
Preparing for use
Setting up the product
4.3 Choosing the operating site
Specific operating conditions ensure proper operation and avoid damage to the
product and connected devices. For information on environmental conditions
such as ambient temperature and humidity, see the data sheet.
See also "Choosing the operating site" on page 6.
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 under "General data".
●
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.
4.4 Setting up the product
See also:
●
"Setting up the product" on page 6
●
"Intended use" on page 5
4.4.1 Placing the product on a bench top
The R&S NRX is a small and lightweight product. You can stack the R&S NRX
with other products, but place the R&S NRX on top. In the following procedure,
the weight indication for stacking refers to the most common design of larger
Rohde & Schwarz instruments. Verify the load suitable for your product before
stacking.
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R&S®NRX
Preparing for use
Setting up the product
To place the product on a bench top
1. Place the product on a stable, flat and level surface. Ensure that the surface
can support the weight of the product. For information on the weight, see the
data sheet.
2. CAUTION! Foldable feet can collapse. See "Setting up the product"
on page 6.
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 bottom 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 product and any object in the vicinity.
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R&S®NRX
Considerations for test setup
● Do not place the product next to heat-generating equipment such as radiators or other products.
Preparing for use
4.4.2 Mounting the product in a rack
To prepare the rack
1. Observe the requirements and instructions in "Setting up the product"
on page 6.
2. NOTICE! Insufficient airflow can cause overheating and damage the product.
Design and implement an efficient ventilation concept for the rack.
To mount the product in a rack
1. Use an adapter kit to prepare the product for rack mounting.
a) Order the rack adapter kit designed for the product. For the order number,
see data sheet.
b) Mount the adapter kit. Follow the assembly instructions provided with the
adapter kit.
2. Grab the product by the handles and push it onto the shelf until the rack
brackets fit closely to the rack.
3. Tighten all screws on the rack brackets to secure the product in the rack.
To unmount the product from a rack
1. Loosen the screws at the rack brackets.
2. Remove the product from the rack.
3. If placing the product on a bench top again, unmount the adapter kit from the
product. Follow the instructions provided with the adapter kit.
4.5 Considerations for test setup
Cable selection and electromagnetic interference (EMI)
Electromagnetic interference (EMI) can affect the measurement results.
16Getting Started 1424.7070.02 ─ 09
R&S®NRX
To suppress electromagnetic radiation during operation:
●
Use high-quality shielded cables, for example, double-shielded RF and LAN
cables.
●
Always terminate open cable ends.
●
Ensure that connected external devices comply with EMC regulations.
●
Do not use USB connecting cables exceeding 5 m.
Preventing electrostatic discharge (ESD)
Electrostatic discharge is most likely to occur when you connect or disconnect a
DUT.
► NOTICE! Risk of electrostatic discharge. Electrostatic discharge can damage
the electronic components of the product and the device under test (DUT).
Ground yourself to prevent electrostatic discharge damage:
Preparing for use
Connecting to power
a) Use a wrist strap and cord to connect yourself to ground.
b) Use a conductive floor mat and heel strap combination.
4.6 Connecting to power
The R&S NRX can be used with different AC power voltages and adapts itself
automatically to them. Adjusting the R&S NRX to a particular AC supply voltage is
therefore not required. Refer to the data sheet for the requirements of voltage and
frequency.
For safety information, see "Connecting to power" on page 7.
1. Plug the AC power cable into the AC power connector on the rear panel of the
product. Only use the AC power cable delivered with the product.
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.
Further information:
●
Chapter 5.2.5, "AC supply and power switch", on page 29
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R&S®NRX
Preparing for use
Connecting power sensors
4.7 Connecting power sensors
The R&S NRX supports a wide range of R&S power sensors. See the data sheet
for detailed information.
Depending on the power sensor, you have different choices for connecting power
sensors.
4.7.1 Sensor connectors A to D
See Chapter 5.1.1, "Sensor connectors A and B", on page 23 and Chap-
ter 5.2.8, "Sensor connectors C and D", on page 31.
Suitable for:
●
R&S NRP power sensors: R&S NRP xxS/T/A USB and
R&S NRPxxSN/TN/AN LAN models
●
R&S NRQ6
●
R&S NRP‑Zxx power sensors
Sample Clock I/O (Default: 120 MHz)
2
LAN PoE+
Host
Interface
LO I/0
3
4
5 6
NRQ6
Frequency Selective Power Sensor
1
Figure 4-1: Setup with an R&S power sensor (example)
1 = Signal source
2 = R&S power sensor
3 = Host Interface connector
4 = R&S NRP‑ZK8
5 = Sensor connector of the R&S NRX
6 = R&S NRX
Use an R&S NRP‑ZK8 cable to connect an R&S power sensor to the R&S NRX.
If you use an R&S NRP‑ZK6 cable, the reference clock and trigger are not supported.
1. 8-pin female connector of R&S NRP‑ZK8:
a) Insert the screw-lock cable connector into the host interface of the
R&S power sensor.
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R&S®NRX
Preparing for use
Connecting power sensors
b) Tighten the union nut manually.
2. 8-pin male connector of R&S NRP‑ZK8:
a) Insert this connector into one of the sensor ports of the R&S NRX.
3. Connect the RF connector of the R&S power sensor to the signal source. For
details, see the user manual of the R&S power sensor.
Note: Incorrectly connecting/disconnecting an R&S power sensor can dam-
age the power sensor or lead to erroneous results.
4.7.2 Optional interface for R&S NRT-Z sensors (R&S NRX-B9)
See Chapter 5.1.2, "Module bay", on page 24.
Suitable for R&S NRT‑Zxx directional power sensors.
Communication between the R&S NRT‑Zxx directional power sensor and a base
unit is only possible with a baud rate setting of 38400 Bd. This setting is the factory default that must be restored if the setting was changed. If the R&S NRT‑Zxx
directional power sensor is not recognized by the base unit, check that the baud
rate setting of the R&S NRT‑Zxx directional power sensor is 38400 Bd.
See the manual of the R&S NRT‑Zxx directional power sensor for details.
The arrow on the power sensor casing shows the forward power flow.
1
2
Figure 4-2: Connecting to source and load
1 = source
2 = port 1 (RF connector)
3 = R&S NRT‑Zxx directional power sensor
3
4
5
6
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Preparing for use
Connecting power sensors
4 = port 2 (RF connector)
5 = load
6 = host interface connector
To connect the R&S NRT‑Zxx directional power sensor
Connect the R&S NRT‑Zxx directional power sensor between source and load of
your test setup as follows.
1. Connect RF connector (2, port 1) to the source.
a) Insert RF connector (2) straight into the RF connector of the source. Take
care not to tilt the R&S NRT‑Zxx directional power sensor.
b) Tighten the RF connector securely by hand.
2. Connect RF connector (4, port 2) to the load.
a) Insert RF connector (4) straight into the RF connector of the load. Take
care not to tilt the R&S NRT‑Zxx directional power sensor.
b) Tighten the RF connector tightly by hand.
During the measurement, the RF power flow can be high. Power leakage
has the risk of electric shock and severe skin burns.
3. Connect the host interface connector of the R&S NRT‑Zxx directional power
sensor (6) to the interface for R&S NRT-Z sensors (R&S NRX-B9).
To disconnect the R&S NRT‑Zxx directional power sensor
1. CAUTION! Risk of electric shock and severe skin burns. During the measurement, the RF power flow can be high.
Switch off the RF power before touching the RF connectors.
2. Unscrew the RF connectors by hand.
3. Disconnect the cable of the R&S NRT‑Zxx directional power sensor (6) from
the interface for R&S NRT-Z sensors (R&S NRX-B9).
4.7.3 LAN interface
See Chapter 5.2.2, "Ethernet interface", on page 29.
Suitable for LAN power sensors.
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Preparing for use
Switching on or off
4.7.4 USB 2.0 host interfaces
See Chapter 5.1.5, "USB host interface", on page 27 and Chapter 5.2.4, "USB
host interface", on page 29.
Suitable for USB power sensors. You can increase the number of connected
power sensors by using USB hubs.
4.8 Connecting USB and external devices
Apart from connecting power sensors, you can use the USB interfaces to connect
USB devices. You can increase the number of connected devices by using USB
hubs.
Due to the large number of available USB devices, there is almost no limit to the
possible expansions. In the following, useful USB devices are listed exemplarily:
●
Memory stick for easy transfer of data to/from a computer (e.g. firmware
updates).
●
Mouse if you prefer this way of operation over a touchscreen.
4.9 Switching on or off
Table 4-1: Overview of power states
Status LED Position of power switch
Off Off [0]
Standby
Ready
orange
green
To switch on the product
The product is off but connected to power.
[I]
[I]
1. Set the switch on the power supply to position [I]. See Chapter 5.2.5, "AC sup-
ply and power switch", on page 29.
The LED of the [standby] key is orange. See Chapter 5.1.6, "On/standby key",
on page 27.
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R&S®NRX
2. Press the [standby] key.
The LED changes to green. The product boots.
If the previous session ended regularly, the product uses the settings from the
last session.
3. If you want to return to a defined initial state, perform a preset.
To shut down the product
The product is in the ready state.
► Press the [standby] key.
The operating system shuts down. The LED changes to orange.
To disconnect from power
The product is in the standby state.
Preparing for use
Switching on or off
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 switch on the power supply to position [0].
The LED of the standby key is switched off.
2. Disconnect the product from the power source.
Further information:
●
Chapter 5.1.6, "On/standby key", on page 27
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Instrument tour
Front panel tour
5 Instrument tour
The meanings of the labels on the product are described in Chapter 1.2, "Labels
on the product", on page 8.
● Front panel tour...............................................................................................23
● Rear panel tour............................................................................................... 28
5.1 Front panel tour
8
1
7
6
2
3 4 5
Figure 5-1: Front panel of the R&S NRX
1 = Module bay for optional connectors, see Chapter 5.1.2, "Module bay", on page 24.
2 = Sensor connectors A and B, see Chapter 5.1.1, "Sensor connectors A and B",
on page 23.
3 = Touchscreen, see Chapter 5.1.3, "Touchscreen", on page 25.
4 = USB host interface, see Chapter 5.1.5, "USB host interface", on page 27.
5 = On/standby key, see Chapter 5.1.6, "On/standby key", on page 27.
6, 8 = Keys, see Chapter 5.1.4, "Keys", on page 25.
7 = Cursor keys, see "Cursor keys" on page 27.
5.1.1 Sensor connectors A and B
See (2) in Figure 5-1.
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R&S®NRX
Instrument tour
Front panel tour
Sensor connectors A and B are used to connect the R&S NRP power sensors
and the R&S NRQ6. For details on the supported power sensors, see the data
sheet.
The complete functional range, including external trigger and reference clock for
the synchronization of connected sensors, is provided by these connectors.
Further information:
●
Chapter 4.7, "Connecting power sensors", on page 18
5.1.2 Module bay
See (1) in Figure 5-1.
Two options fit in this bay. If you have both options, you can exchange them, see
"To exchange the option" on page 25.
If no option is installed, the module bay is closed by a cover.
Sensor check source (R&S NRX-B1)
Used as a power reference for testing the connected power sensors and the
cabling. The LED of the sensor check source (R&S NRX-B1) shows the state,
see Table 5-1.
You can remove the option and send it to Rohde & Schwarz for calibration. Contact the Rohde & Schwarz customer service.
Table 5-1: Possible states
Illumination State Signal output setting
Off No signal is generated. "Off"
Steady green Continuous wave is output. "CW"
Blinking green Pulse signal is output. "Pulse"
Blinking red Settings conflict exists.
For example if "Pulse" is set and the
power level is set to 20 dBm.
"CW" or "Pulse"
Interface for R&S NRT-Z sensors (R&S NRX-B9)
Provides an optional power sensor interface to connect an R&S NRT‑Zxx power
sensor. For supported power sensors, see the data sheet.
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R&S®NRX
To exchange the option
1. Press the latch to the right, using your thumb nail or a small pen.
2. Pull the option from its casing.
3. Insert the other option.
4. Press until you hear a click when the latch locks.
Further information:
●
Chapter 4.7, "Connecting power sensors", on page 18
Instrument tour
Front panel tour
●
Chapter 4.7.2, "Optional interface for R&S NRT-Z sensors (R&S NRX-B9)",
on page 19
5.1.3 Touchscreen
See (3) in Figure 5-1.
The R&S NRX displays results in panes. Depending on the measurement mode,
values are displayed digitally or graphically.
False triggers can occur
If an object (e.g. a human finger) that is charged with static electricity is
brought near the touch panel, false triggers can occur.
This behavior is caused by the principle of operation of a PCAP (projected
capacitive) touch panel.
5.1.4 Keys
See (4) in Figure 5-1.
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R&S®NRX
[Esc] / Local
If you press shortly:
●
Changes to the next-higher hierarchy level.
●
Escapes from the entry mode in text boxes and lists.
●
Closes dialogs without losing any entries that have been made.
●
Switches from remote control mode (all controls disabled) to manual operation.
If you press and hold:
●
Goes to the start dialog that shows an overview of the active measurements.
Screenshot
Creates a screenshot of the current display.
[1Trig] / Delete
●
Controls the measurements depending on the trigger mode:
– For all trigger modes except "Single", starts and stops the measurement.
– For the "Single" trigger mode, enables and triggers the measurement.
Instrument tour
Front panel tour
Changes of the trigger state apply to all measurements.
●
Resets the auxiliary values that provide additional information about the measured values.
●
Deletes numbers or text in a field so that you can enter a new value.
Enter
●
Confirms entries in text fields, dialogs and selections in lists.
●
Shows a frame around the control in focus. You can change the focus using
the Cursor keys.
[Freq]
Sets the carrier frequency of the applied signal. This value is used for fre-
quency-response correction of the measurement result.
Favorites
Reserved for future use.
[Preset]
Opens the "Save / Recall / Preset" dialog.
If you press [Preset] again, the preset function starts.
If you press the [Preset] key during booting, the R&S NRX starts with the factory
default state.
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R&S®NRX
[Zero]
Pressing [Zero] opens the "Zeroing Sensors" dialog.
If you press [Zero] again, "Zero All Sensors" starts.
Also displays status information:
●
Zeroing status
●
Sensor status
[System]
Opens the "System Overview" dialog.
Cursor keys
See (5) in Figure 5-1.
The cursor keys are context-sensitive. The control in focus is indicated by a focus
frame. Use the cursor keys as follows:
●
Selecting an element in the navigation pane.
●
Selecting the active pane.
●
Selecting an element from a list.
●
Moving the cursor in text boxes.
●
Changing the value of an entry in a text box.
Instrument tour
Front panel tour
5.1.5 USB host interface
See (6) in Figure 5-1.
USB 2.0 (universal serial bus) interface of the type A (host USB). Used to connect:
●
USB power sensors
●
External devices like a keyboard, mouse, or memory stick
Further information:
●
Chapter 4.7.4, "USB 2.0 host interfaces", on page 21
●
Chapter 4.8, "Connecting USB and external devices", on page 21
5.1.6 On/standby key
See (7) in Figure 5-1.
The on/standby key switches between standby and ready state, if the power
switch is set to [I].
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R&S®NRX
Further information:
●
Chapter 5.2.5, "AC supply and power switch", on page 29
●
Chapter 4.9, "Switching on or off", on page 21
5.2 Rear panel tour
2 3 4 5
1
Instrument tour
Rear panel tour
678
Figure 5-2: Rear panel of the R&S NRX
1 = Sensor connectors C and D (optional), used to connect R&S power sensors, see Chap-
ter 5.2.8, "Sensor connectors C and D", on page 31.
2 = Trig In / Out 2 and Out 1 / Trig Out connectors, see Chapter 5.2.1, "Trig In / Out 2 and
Out 1 / Trig Out connectors", on page 28.
3 = Ethernet interface, see Chapter 5.2.2, "Ethernet interface", on page 29.
4 = USB device interface, see Chapter 5.2.3, "USB device interface", on page 29.
5 = USB host interface, see Chapter 5.2.4, "USB host interface", on page 29.
6 = AC supply and power switch, see Chapter 5.2.5, "AC supply and power switch",
on page 29.
7 = IEC 625/IEEE 488 interface, optional, see Chapter 5.2.6, "IEC 625/IEEE 488 interface",
on page 30.
8 = Name plate, see Chapter 5.2.7, "Name plate", on page 30
5.2.1 Trig In / Out 2 and Out 1 / Trig Out connectors
See (1) in Figure 5-2.
The Out 1 / Trig Out BNC connectors supply an analog signal with a voltage
between 0 V and 2.5 V. It can be used to output a voltage that is proportional to
28Getting Started 1424.7070.02 ─ 09
R&S®NRX
the measured value (e.g. for level regulation) or a digital signal for limit monitoring.
The Trig In / Out 2 BNC connectors can be used either as an external trigger
input with a switchable impedance (10 kΩ or 50 Ω) or as a second analog output.
By default, both connectors are disabled.
Instrument tour
Rear panel tour
5.2.2 Ethernet interface
See (2) in Figure 5-2.
The Ethernet connector is an RJ45 socket for remote controlling the R&S NRX
via a network.
5.2.3 USB device interface
See (3) in Figure 5-2.
USB 2.0 (universal serial bus) interface of the type B (receptacle). Used to connect the R&S NRX to a computer for USB remote control.
5.2.4 USB host interface
See (4) in Figure 5-2.
See Chapter 5.1.5, "USB host interface", on page 27.
5.2.5 AC supply and power switch
See (5) in Figure 5-2.
Observe the safety instructions in "Connecting to power" on page 7.
When the R&S NRX is connected to the AC supply, it automatically sets itself to
the correct range for the applied voltage. The range is printed on the casing.
There is no need to set the voltage manually.
Further information:
●
Chapter 4.6, "Connecting to power", on page 17
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R&S®NRX
Instrument tour
Rear panel tour
5.2.6 IEC 625/IEEE 488 interface
See (6) in Figure 5-2.
Requires GPIB/IEEE488 interface (R&S NRX-B8).
IEC bus (IEEE 488) interface for remote control of the R&S NRX. Used to connect a controller to remote control the R&S NRX. Use a shielded cable for the
connection.
Characteristics of the IEC bus (IEEE 488) interface:
●
8-bit parallel data transfer
●
Bidirectional data transfer
●
Three-wire handshake
●
High data transfer rate
●
Maximum length of connecting cables 15 m (single connection 2 m)
5.2.7 Name plate
See (7) in Figure 5-2.
Shows the type, identification and name of the R&S NRX. The device ID consists
of:
<stock number> - <serial number> - <checksum>
The framed 6 digits in Figure 5-3 are the individual serial number.
NRX
ID: 1424.7005K02 - 100758 - pw
POWER METER
Figure 5-3: Name plate
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R&S®NRX
The name plate also shows the parts of the default hostname. The default hostname consists of <type>-<serial number>.
For the R&S NRX with the name plate shown in Figure 5-3, the default hostname
is:
NRX-100758
Instrument tour
Rear panel tour
5.2.8 Sensor connectors C and D
See (8) in Figure 5-2.
Requires 3rd and 4th R&S NRP sensor connector (R&S NRX-B4).
For more details, see Chapter 5.1.1, "Sensor connectors A and B", on page 23.
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R&S®NRX
Contacting customer support
6 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 6-1: QR code to the Rohde & Schwarz support page
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R&S®NRX
Index
Index
Symbols
1 Trig key .................................................26
A
AC power supply ..................................... 29
Connecting to ......................................17
B
Bench top operation ................................ 14
Brochures ................................................ 11
C
Carrying ...................................................13
Checking ................................................. 13
Connecting
External devices ................................. 21
Power supply ...................................... 17
Sensor ................................................ 18
Connector
AC power supply .................................29
Out 1 / Trig Out ................................... 28
Sensor .......................................... 23, 31
Trig In / Out 2 ......................................28
Cursor keys ............................................. 27
Customer support ....................................32
D
Data sheets ............................................. 11
Delete key ............................................... 26
Device ID .................................................30
Documentation overview ......................... 10
E
Electromagnetic interference (EMI) .........16
Electrostatic discharge (ESD) ................. 17
EMI .......................................................... 16
Enter key ................................................. 26
Esc key ....................................................25
ESD ......................................................... 17
Ethernet interface .................................... 29
External devices ...................................... 21
F
Favorites key ........................................... 26
Freq key .................................................. 26
Front panel .............................................. 23
Front panel keys ......................................25
G
Getting started .........................................10
H
Hardware option ...................................... 24
Help ......................................................... 10
Hostname
Default ................................................ 30
I
IEC 625/IEEE 488 interface .................... 30
Instrument security procedures ............... 10
Intended use ..............................................5
Interface
Ethernet .............................................. 29
IEC 625/IEEE 488 ...............................30
Module bay ......................................... 24
USB device ......................................... 29
USB host .............................................29
K
Key .......................................................... 25
1 Trig ...................................................26
Delete ................................................. 26
Enter ................................................... 26
Esc ......................................................25
Favorites ............................................. 26
Freq .................................................... 26
Local ................................................... 25
On/standby ......................................... 27
Preset ................................................. 26
Screenshot ..........................................26
System ................................................27
Zero .................................................... 27
L
Labels ........................................................8
Lifting .......................................................13
Local key ................................................. 25
M
Module bay ..............................................24
33Getting Started 1424.7070.02 ─ 09
R&S®NRX
Index
O
On/standby key ....................................... 27
Open source acknowledgment (OSA) ..... 11
Operating conditions ............................... 14
Operating site .......................................... 14
Out 1 / Trig Out connector .......................28
P
Power supply
Connecting to ......................................17
Preparing for use .....................................13
Preset key ............................................... 26
R
Rack mounting ........................................ 16
Rear panel ...............................................28
Release notes ..........................................11
S
Safety information ..................................... 5
Safety instructions ............................... 5, 10
Screenshot key ........................................26
Security procedures ................................ 10
Sensor
Connecting ..........................................18
Connector ..................................... 23, 31
Serial number .......................................... 30
Setting up ................................................ 14
Stock number .......................................... 30
Switching on ............................................ 21
System key ..............................................27
Z
Zero key .................................................. 27
T
Target audience ......................................... 5
Test setup ................................................ 16
Touchscreen ............................................ 25
Trig In / Out 2 connector ..........................28
U
Unpacking ............................................... 13
USB
Device interface .................................. 29
Host interface ................................27, 29
User manual ............................................ 10
W
Warning message ......................................8
34Getting Started 1424.7070.02 ─ 09
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