Rohde & Schwarz R&S NRP Series User manual

R&S®NRP Series
Power Sensors
Getting Started
Getting Started
Version 12
1419017002
(>C1Ô2)

This manual gives an introduction to the R&S®NRP series power sensors:
●R&S®NRPxxA(N) average power sensors
●R&S®NRPxxS(N) three-path diode power sensors
●R&S®NRP18S-xx high-power three-path diode power sensors
●R&S®NRPxxT(N) thermal power sensors
●R&S®NRPxxTWG thermal waveguide power sensors
© 2020 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1419.0170.02 | Version 12 | R&S®NRP Series
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, for example
R&S®NRX is abbreviated as R&S NRX.

Contents
R&S®NRP Series
3Getting Started 1419.0170.02 ─ 12
Contents
1 Safety Information................................................................. 5
2 Documentation Overview......................................................6
2.1 Getting Started Manual.........................................................................6
2.2 User Manuals.........................................................................................6
2.3 Tutorials................................................................................................. 6
2.4 Instrument Security Procedures......................................................... 7
2.5 Basic Safety Instructions..................................................................... 7
2.6 Data Sheets and Brochures................................................................. 7
2.7 Release Notes and Open Source Acknowledgment (OSA)...............7
2.8 Application Notes, Application Cards, White Papers, etc.................8
3 Key Features.......................................................................... 9
4 Preparing for Use.................................................................10
4.1 Unpacking and Checking the Power Sensor....................................10
4.2 Operating Conditions......................................................................... 10
4.3 Considerations for Test Setup........................................................... 11
4.4 Connecting to a DUT.......................................................................... 12
4.5 Connecting a Cable to the Host Interface.........................................13
4.6 Connecting to a Controlling Host......................................................14
4.6.1 Computer.............................................................................................. 14
4.6.2 Base Unit.............................................................................................. 17
4.6.3 Using a LAN Connection.......................................................................18
5 R&S NRP Power Sensors Tour...........................................25
5.1 RF Connector...................................................................................... 26
5.2 Trigger I/O Connector......................................................................... 27

Contents
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4Getting Started 1419.0170.02 ─ 12
5.3 Host Interface...................................................................................... 28
5.4 Status LED...........................................................................................28
5.5 LAN PoE Interface...............................................................................29
6 Operating Concepts............................................................ 31
6.1 R&S NRP Toolkit................................................................................. 31
6.1.1 Versions and Downloads...................................................................... 31
6.1.2 System Requirements...........................................................................32
6.1.3 R&S NRP Toolkit for Windows.............................................................. 32
6.2 Browser-Based User Interface...........................................................34
6.3 Remote Control................................................................................... 36
6.4 R&S NRPV........................................................................................... 37
6.5 R&S Power Viewer.............................................................................. 39
6.6 R&S Power Viewer Mobile..................................................................42
6.7 R&S NRX..............................................................................................42
6.8 R&S NRP2............................................................................................44
7 Remote Control Interfaces and Protocols.........................47
7.1 USB Interface...................................................................................... 48
7.2 Ethernet Interface............................................................................... 50
7.2.1 VISA Resource Strings......................................................................... 50
7.2.2 VXI-11 Protocol..................................................................................... 52
7.2.3 HiSLIP Protocol.....................................................................................52
7.2.4 Socket Communication......................................................................... 53
8 Contacting Customer Support........................................... 54
Index..................................................................................... 55

Safety Information
R&S®NRP Series
5Getting Started 1419.0170.02 ─ 12
1 Safety Information
The product documentation helps you use the R&S NRP series power sensor
safely and efficiently. Follow the instructions provided here and in the printed
"Basic Safety Instructions". Keep the product documentation nearby and offer it to
other users.
Intended use
The R&S NRP series power sensor is intended for the development, production
and verification of electronic components and devices in industrial, administrative,
and laboratory environments. Use the R&S NRP series power sensor 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 about the
potential dangers and gives instructions how to prevent personal injuries or dam-
age caused by dangerous situations. Safety information is provided as follows:
●The printed "Basic Safety Instructions" provide safety information in many lan-
guages and are delivered with the R&S NRP series power sensor.
●Throughout the documentation, safety instructions are provided when you
need to take care during setup or operation.

Documentation Overview
R&S®NRP Series
6Getting Started 1419.0170.02 ─ 12
2 Documentation Overview
This section provides an overview of the R&S NRP series power sensor user doc-
umentation. Unless specified otherwise, you find the documents on the R&S NRP
series power sensor product page at:
www.rohde-schwarz.com/product/nrp-a-an
www.rohde-schwarz.com/product/nrp_s_sn
www.rohde-schwarz.com/product/nrp18s-xx
www.rohde-schwarz.com/product/nrp-t-tn
www.rohde-schwarz.com/product/nrp-twg
2.1 Getting Started Manual
Introduces the R&S NRP series power sensor and describes how to set up and
start working with the product. Includes basic operations and general information,
e.g. safety instructions, etc. A printed version is delivered with the power sensor.
2.2 User Manuals
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 and
interfaces. Includes the contents of the getting started manual.
2.3 Tutorials
Tutorials offer guided examples and demonstrations on operating the R&S NRP
series power sensor. They are provided on the product page of the internet.
Tutorials

Documentation Overview
R&S®NRP Series
7Getting Started 1419.0170.02 ─ 12
2.4 Instrument Security Procedures
Deals with security issues when working with the R&S NRP series power sensor
in secure areas. It is available for download on the Internet.
2.5 Basic Safety Instructions
Contains safety instructions, operating conditions and further important informa-
tion. The printed document is delivered with the instrument.
2.6 Data Sheets and Brochures
The data sheet contains the technical specifications of the R&S NRP series
power sensor. 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.
www.rohde-schwarz.com/brochure-datasheet/nrp-a-an
www.rohde-schwarz.com/brochure-datasheet/nrp_s_sn
www.rohde-schwarz.com/brochure-datasheet/nrp18s-xx
www.rohde-schwarz.com/brochure-datasheet/nrp-t-tn
www.rohde-schwarz.com/brochure-datasheet/nrp-twg
2.7 Release Notes and Open Source Acknowledg-
ment (OSA)
The release notes list new features, improvements and known issues of the cur-
rent firmware version, and describe the firmware installation.
Release Notes and Open Source Acknowledgment (OSA)

Documentation Overview
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8Getting Started 1419.0170.02 ─ 12
The "Open Source Acknowledgment" is provided on the user documentation CD-
ROM, included in the delivery. It contains verbatim license texts of the used open
source software.
www.rohde-schwarz.com/firmware/nrp-a-an
www.rohde-schwarz.com/firmware/nrp_s_sn
www.rohde-schwarz.com/firmware/nrp18s-xx
www.rohde-schwarz.com/firmware/nrp-t-tn
www.rohde-schwarz.com/firmware/nrp-twg
2.8 Application Notes, Application Cards, White
Papers, etc.
These documents deal with special applications or background information on
particular topics.
www.rohde-schwarz.com/application/nrp_s_sn
www.rohde-schwarz.com/application/nrp18s-xx
Application Notes, Application Cards, White Papers, etc.

Key Features
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3 Key Features
The R&S NRP series power sensors are the successors of the established
R&S NRP‑Z series of RF power sensors.
They provide a high-speed USB interface that constitutes both the communication
port and the power supply connection.
Also, most sensors are available with an additional Gigabit Ethernet interface with
Power-over-Ethernet (PoE) power supply. The power sensors with networking
capabilities, the R&S NRP LAN power sensors, are marked with a trailing N in
their names:
●R&S NRPxxSN
●R&S NRPxxAN
●R&S NRPxxTN
The R&S NRP series power sensors are compatible with the R&S NRP‑Z power
sensors in both the interface (USB) and a common command subset. This com-
patibility makes the replacement of the old power sensors easy.
For a detailed specification, refer to the data sheet.

Preparing for Use
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4 Preparing for Use
For information on safety, see:
●Chapter 1, "Safety Information", on page 5
●Chapter 4.2, "Operating Conditions", on page 10
4.1 Unpacking and Checking the Power Sensor
Check the equipment for completeness using the delivery note and the accessory
lists for the various items. Check the power sensor for any damage. If there is
damage, immediately contact the carrier who delivered the power sensor. Make
sure not to discard the box and packing material.
Packing material
Retain the original packing material. If the instrument needs to be transpor-
ted or shipped later, you can use the material to protect the control ele-
ments and connectors.
4.2 Operating Conditions
Risk of injury through hot surfaces
Applies only to the R&S NRP18S‑xx power sensors.
Under certain conditions, the maximum surface temperatures of the power
sensor can exceed the limits defined in EN 61010-1.
Provide protection against unintentional contact and wear appropriate per-
sonal protective equipment when touching the sensor.
Specific operating conditions are required to ensure accurate measurements and
to avoid damage to the power sensor and connected devices. Before switching
Operating Conditions

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11Getting Started 1419.0170.02 ─ 12
on the power sensor, observe the information on appropriate operating conditions
provided in the basic safety instructions and the data sheet of the power sensor.
In particular, ensure the following:
●The power sensor is dry and shows no sign of condensation.
●The ambient temperature does not exceed the range specified in the data
sheet.
●Signal levels at the input connectors are all within the specified ranges.
●Signal outputs are connected correctly and are not overloaded.
4.3 Considerations for Test Setup
Handling the R&S NRP33SN-V power sensor
Risk of contamination
Always wear clean protective gloves when handling the R&S NRP33SN-V
vacuum power sensors to protect the device and its environment from con-
tamination.
Recommended bake-out procedure
When the sensor is inserted in a vacuum chamber, perform vacuum baking
for 100 hours at 85°C at a pressure lower than 10-5 mbar.
Preventing electrostatic discharge (ESD)
ESD is most likely to occur when you connect or disconnect a DUT.
►NOTICE! Risk of electrostatic discharge (ESD). Electrostatic discharge (ESD)
can damage the electronic components of the power sensor and the device
under test (DUT).
Ground yourself to avoid electrostatic discharge (ESD) damage:
● Using a wrist strap and cord, connect yourself to the ground.
● Use a conductive floor mat and heel strap combination.
Considerations for Test Setup

Preparing for Use
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12Getting Started 1419.0170.02 ─ 12
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results.
To suppress generated electromagnetic interference (EMI):
●Use suitable shielded cables of high quality. For example, use double-shielded
RF and LAN cables.
●Always terminate open cable ends.
●Note the EMC classification in the data sheet.
4.4 Connecting to a DUT
For connecting the power sensor to a DUT, use the RF connector. See Chap-
ter 5.1, "RF Connector", on page 26.
Risk of overloading the sensor
Using a power sensor at a level above its upper measuring limit can dam-
age the sensor head. To avoid this risk, make sure not to exceed the test
limit.
The test limits specified on the type label are valid only for the supplied
attenuator. For operation without attenuator, lower test limits apply, as
specified in the data sheet.
To connect to the DUT
1. Ensure that the RF connector of your DUT is compatible with the RF connec-
tor of the power sensor.
2. Insert the RF connector straight into the RF output of your DUT. Take care not
to tilt it.
180
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
3. NOTICE! Risk of damaging the center pin of the RF connector. Always rotate
only the hex nut of the RF connector. Never rotate the power sensor itself.
Connecting to a DUT

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13Getting Started 1419.0170.02 ─ 12
Tighten the RF connector manually.
4. To ensure maximum measurement accuracy, tighten the RF connector using a
torque wrench with the nominal torque recommended in Chapter 5.1, "RF
Connector", on page 26.
To disconnect from the DUT
►NOTICE! Risk of damaging the center pin of the RF connector. Always rotate
only the hex nut of the RF connector. Never rotate the power sensor itself.
Carefully loosen the union nut at the front of the RF connector of the sensor
and remove the sensor.
4.5 Connecting a Cable to the Host Interface
For connecting the power sensor to a USB host, use the host interface. See
Chapter 5.3, "Host Interface", on page 28.
Depending on the USB host, use one of the following cables:
●Computer or R&S NRP‑Z5 sensor hub:
R&S NRP‑ZKU cable with a USB connector, R&S order number 1419.0658.xx
See Chapter 4.6.1, "Computer", on page 14.
●Base units, R&S NRX or R&S NRP2, or other supported Rohde & Schwarz
instruments:
R&S NRP‑ZK6 cable with a push-pull type connector, R&S order number
1419.0664.xx
See Chapter 4.6.2, "Base Unit", on page 17.
These cables can be obtained in different lengths up to 5 meters.
To connect a cable to the host interface of the power sensor
1. Insert the screw-lock cable connector into the host interface connector of the
power sensor.
2. Tighten the union nut manually.
To disconnect the host interface of the power sensor
► Loosen the union nut of the screw-lock cable connector and remove the cable.
Connecting a Cable to the Host Interface

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4.6 Connecting to a Controlling Host
As a controlling host, you can use:
●Computer
●Base Unit
For operating the power sensor, you can choose from various possibilities. For
details, see Chapter 6, "Operating Concepts", on page 31.
4.6.1 Computer
If the controlling host is a computer, you can operate the power sensor using a
supported software, the web user interface or remote control. For details, see
Chapter 6, "Operating Concepts", on page 31.
► Establish the connection using:
● Host interface
See Chapter 4.6.1.1, "Simple USB Connection", on page 14.
See Chapter 4.6.1.2, "R&S NRP‑Z5 Sensor Hub Setup", on page 15.
● LAN interface, if the power sensor is a LAN power sensor
See Chapter 4.6.3, "Using a LAN Connection", on page 18.
4.6.1.1 Simple USB Connection
All R&S NRP power sensors can be connected to the USB interface of a com-
puter.
Required equipment
●R&S NRP power sensor
●R&S NRP‑ZKU cable
Connecting to a Controlling Host

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15Getting Started 1419.0170.02 ─ 12
Setup
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
Figure 4-1: Setup with an R&S NRP ‑ ZKU cable
1 = Signal source
2 = R&S NRP power sensor
3 = Host interface connector
4 = R&S NRP‑ZKU cable
5 = USB connector
6 = Computer with installed VISA driver or R&S NRP Toolkit
Incorrectly connecting/disconnecting the R&S NRP power sensors can
damage the power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in
Chapter 4, "Preparing for Use", on page 10.
1. Connect the cables as shown in Figure 4-1 :
a) Connect the R&S NRP‑ZKU cable to the power sensor.
See "To connect a cable to the host interface of the power sensor"
on page 13.
b) Connect the R&S NRP‑ZKU cable to the computer.
c) Connect the power sensor to the signal source.
2. On the computer, start a software application to view the measurement
results.
See Chapter 6, "Operating Concepts", on page 31.
4.6.1.2 R&S NRP‑Z5 Sensor Hub Setup
The R&S NRP‑Z5 sensor hub (high-speed USB 2.0) can host up to four R&S
NRP power sensors and provides simultaneous external triggering to all connec-
ted sensors.
Connecting to a Controlling Host

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Required equipment
●1 to 4 R&S NRP power sensors
●1 R&S NRP‑ZK6 cable per sensor
●R&S NRP‑Z5 sensor hub with external power supply unit and USB cable
●BNC cables to connect the trigger input and trigger output signals (optional)
Setup
TTL /CMOS
TTL /CMOS
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
Figure 4-2: Setup with an R&S NRP-Z5 sensor hub
1 = R&S NRP‑Z5 sensor hub
2 = External power supply unit (supplied)
3 = Power cable (supplied)
4 = AC power supply
5 = USB cable (supplied)
6 = Computer with USB host interface
7, 8 = BNC cable (optional, not supplied)
9 = Trigger source (optional)
10 = Triggered device (optional)
11-14 = R&S NRP‑ZK6 cable
Connecting to a Controlling Host

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17Getting Started 1419.0170.02 ─ 12
15 = Host interface connector
16 = R&S NRP power sensor
17 = Signal source
Incorrectly connecting/disconnecting the R&S NRP power sensors can
damage the power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in
Chapter 4, "Preparing for Use", on page 10.
1. Connect the cables as shown in Figure 4-2:
a) Connect the R&S NRP‑ZK6 cable to the power sensor.
See "To connect a cable to the host interface of the power sensor"
on page 13
b) Connect the power sensors to the R&S NRP‑Z5 sensor hub. You can con-
nect up to four sensors.
c) Connect the R&S NRP‑Z5 to the computer.
d) Connect the power sensors to the signal source.
e) Connect the delivered external power supply unit to the R&S NRP‑Z5 and
to an AC supply connector.
f) Connect the trigger input of the R&S NRP‑Z5 with a BNC cable to the trig-
ger source (optional).
g) Connect the trigger output of the R&S NRP‑Z5 with a BNC cable to the
trigger device (optional).
2. On the computer, start a software application to view the measurement
results.
See Chapter 6, "Operating Concepts", on page 31.
4.6.2 Base Unit
As a controlling host, you can use an R&S NRX or R&S NRP2 base unit. You can
also operate the power sensor using other supported Rohde & Schwarz instru-
ments with a sensor connector. For details, see also the user manual of the
instrument.
► Establish the connection with the base unit using:
● Host interface
See Chapter 6.7, "R&S NRX", on page 42
See Chapter 6.8, "R&S NRP2", on page 44
Connecting to a Controlling Host

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● LAN interface, if:
– Base unit is an R&S NRX
– Power sensor is a LAN power sensor
See Chapter 4.6.3, "Using a LAN Connection", on page 18.
4.6.3 Using a LAN Connection
Requires power sensors with networking capabilities, the R&S NRP LAN
power sensors.
4.6.3.1 Connecting a LAN Power Sensor to the LAN
Depending on the available equipment, you can choose from different ways to
connect a LAN power sensor to a controlling host.
The Ethernet interface of a LAN power sensor requires PoE (power over
Ethernet). See Chapter 5.5, "LAN PoE Interface", on page 29.
Electromagnetic interference (EMI) can affect the measurement results. To
avoid any impact, use category 5 cables or better.
Setup with a PoE Ethernet switch
1
4
6
5
3
HOST
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
max. 5.3 V
TRIG2
I/0
PoE
SMART SENSOR TECHNOLOGY
NRP
7
2
Figure 4-3: Setup with a PoE Ethernet switch
Connecting to a Controlling Host

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1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 6 = RJ-45 Ethernet cable
5 = Ethernet switch supporting PoE power delivery, e.g. R&S NRP-ZAP1
7 = Controlling host
1. Connect the RF connector of the sensor to the DUT.
See Chapter 4.4, "Connecting to a DUT", on page 12.
2. NOTICE! Risk of sensor damage. Use only PoE power sourcing equipment
(PSE) according to IEEE standards 802.3af or IEEE 802.3at.
Otherwise your power sensor can get damaged.
Connect the RJ-45 Ethernet connector of the sensor to an Ethernet switch
that supports PoE power delivery.
3. Connect the controlling host to the Ethernet switch.
4. Establish a connection between the power sensor and the network.
See Chapter 4.6.3.2, "Establishing a Connection to the Network",
on page 21.
Setup with a PoE injector and a non-PoE Ethernet switch
1
4
65
3
HOST
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
max. 5.3 V
TRIG2
I/0
PoE
SMART SENSOR TECHNOLOGY
NRP
78
9
10
2
Figure 4-4: Setup with a PoE injector and a non-PoE Ethernet switch
1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 7,9 = RJ-45 Ethernet cable
5 = PoE injector
Connecting to a Controlling Host

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6 = AC supply
8 = Non-PoE Ethernet switch
10 = Controlling host
1. Connect the RF connector of the sensor to the DUT.
See Chapter 4.4, "Connecting to a DUT", on page 12.
2. NOTICE! Risk of sensor damage. Use only PoE power sourcing equipment
(PSE) according to IEEE standards 802.3af or IEEE 802.3at.
Otherwise your power sensor can get damaged.
Connect the RJ-45 Ethernet connector of the sensor to the output of the PoE
injector.
3. Connect the PoE injector to a power supply.
4. Connect the input of the PoE injector to the non-PoE Ethernet switch.
5. Connect the controlling host to the non-PoE Ethernet switch.
6. Establish a connection between the power sensor and the network.
See Chapter 4.6.3.2, "Establishing a Connection to the Network",
on page 21.
Setup with a PoE injector
1
4
65
3
HOST
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
max. 5.3 V
TRIG2
I/0
PoE
SMART SENSOR TECHNOLOGY
NRP
7
8
2
Figure 4-5: Setup with a PoE injector
1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 7 = RJ-45 Ethernet cable
Connecting to a Controlling Host