Arbitrary waveform generator – this term encapsulates the wide-ranging capabilities and applications that can be provided by user-definable I/Q baseband signals and a vector signalgenerator. Rohde & Schwarz has developed the R&S WinIQSIM™ software package specifically with this in mind. The first questions a user might ask are: “How do the R&S SFU and R&S WinIQSIM™ interwork and what features are available? This Application Note has been produced to answer these questions.

19-Dec-2006 | AN-No. 7BM57

The OneWeb satellite constellation provides global broadband data access to almost every user. Via user terminals, the satellite connects the remote users to the ground station, which has access to the terrestrial broadband network. Receivers and RF equipment in the OneWeb ground stations and the user terminals need to handle high-speed microwave data links.

24-Apr-2018

What used to be the car radio has evolved from adding a cassette player to state of the art entertainment on the move. All this while keeping driver & passengers connected. The design challenge is to bring all the communication and broadcast standards into a small form factor that fits in the dashboard of the car. The RF modules need to support multiple standards in a single assembly and multiple modules are placed next to each other. The frequencies defined by the RF standards are in very close proximity and hence need to co-exist with each other. Moreover, the antennas inside the car are subjected to cross-coupling effects with mobile devices of passengers. To ensure the RF performance of the infotainment system, all of these scenarios need to be thoroughly tested.This application note highlights some of the RF measurement challenges and introduces Rohde & Schwarz equipment required for relevant RF characterization of car infotainment devices.

08-May-2017 | AN-No. 1MA275

The R&S®Pulse Sequencer software offers a powerful mechanism to model sequences that are often required for meaningful radar receiver test cases. The sequences can consist of many individual elements, such as pulses defined by the software or imported waveform segments. The software’s powerful interpulse modulation mechanism gives the user full control of each single element.

03-Oct-2017

As the data rates in high-speed digital designs increase, the limits for overall system jitter become tighter. This especially applies to the various components of the clock tree, where the jitter limits for reference clocks, clock buffers and jitter attenuators are even tighter. Due to their high phase noise sensitivity, phase noise analyzers are the instruments of choice for these tests.

08-May-2018

This application note describes methods using an R&S®ZVA network analyzer, one or two R&S®SMB100A signal generators and an R&S®FSW signal analyzer to accurately measure all the key parameters of frequency converters with embedded local oscillator. A commercial satellite up-converter is used as a device under test example.

30-Apr-2015 | AN-No. 1MA224

Most of the tests specified in standard TS 34.121 for 3GPP Rel-99 can be performed with R&S®CMW500. This document provides a step by step guide on how to perform Rel-99 measurements on transmitter/receiver characteristics, and performance tests according to TS 34.121 V9.5.0 clauses 5 and 6 with standalone R&S®CMW500. A set of *.sav files based on R&SCMW500 firmware V2.1.20 for UE supporting band I with power class 3 in RMC 12.2 kbps downlink/uplink is attached to this application note.

16-Dec-2011 | AN-No. 1CM95

combination test, optocouplers, compliance test, DUT, coupling factor, Combination test Expanded test method for optocouplers Combination test Expanded test method for optocouplers combination test, optocouplers, compliance test, DUT, coupling factor, Combination test Expanded test method for optocouplers Combination test Expanded test method for optocouplers combination test, optocouplers, compliance

17-Jul-2006

This application note describes how to use the Rohde & Schwarz software tool ‘RsBatchConvert.exe’ for the conversion of binary data or WinIQSIM generated AMIQ waveforms into the new waveform format. The tool not only rescales I/Q data contained in the file but also changes the K-option requirement from WinIQSIM Kxx to the new WinIQSIM2 K2xx options. Thus, new instruments with installed K2xx options may be used to continue using existing waveform files.

18-Jun-2009 | AN-No. 1GP64

LTE – the fastest growing mobile radio standard – had its beginnings in 3GPP Release 8. Initial improvements and new features were implemented in Release 9. This Application Note describes the T&M methods for LTE Release 9 features using Rohde & Schwarz instruments.

26-Apr-2013 | AN-No. 1MA210

The amendment 802.11ad to the WLAN standard defines the MAC and PHY layers for very high throughput (VHT) in the 60 GHz range. This application note provides a brief examination of key 802.11ad parameters, describes the required measurements and test setups and contains several important recommendations for over-the-air (OTA) measurements.

17-May-2017 | AN-No. 1MA260

The R&S®Scope Rider is a modern versatile handheld oscilloscope featuring lab oscilloscope performance in a portable format with the ruggedness of a battery operated handheld device. Its superior performance is the best in its class.

04-Jan-2016

The need to properly represent the ever changing complexities of the RF environment across communications, surveillance, electronic support measures (ESM) and signal intelligence system (SIGINT) with the advances of signal complexity and bandwidth, requires an enormous test and measurement effort.Extensive field tests are often applied to verify the performance and capabilities under preferably natural but controlled conditions. This is both costly and requires a great deal of time.RF signal environment generation using Test & Measurement equipment brings field tests into the laboratory, where a controlled, cost-effective and reproducible environment exists. The R&S®Pulse Sequencer software is a versatile tool to generate arbitrary and realistic RF signal scenarios ensuringsystem readiness for the real operational world.This application note introduces the R&S®Pulse Sequencer software, explains several examples that are applicable for research, development, before operational and during life-time test in detail, and guides you through the necessary steps, to generate a self-defined, arbitrary real life RF signal environment.

17-Jan-2017 | AN-No. 1MA288

When it comes to testing analog and digital TV and audio broadcast receivers in cars, special requirements must be met. Although suppliers ensure the receiver functionality, this functionality must be tested when the receiver is integrated into the car. When it comes to testing analog and digital TV and audio broadcast receivers in cars, special requirements must be met. Although suppliers guarantee the receiver functionality, this functionality must be tested when the receiver is integrated into the car.

19-Feb-2015

A great number of measurements have to be performed to determine the quality of FM tuners. This Application Note presents a program that permits these measurements to be carried out in line with DIN EN60315-4.

11-Feb-2003 | AN-No. 1GA43

In addition to the main function, power electronic circuits very often have to provide other essential functions such as interfacing with submodules to fulfill system design requirements. Power designs therefore include bus communications in combination with a microcontroller. This can easily lead to more complex designs that may have a negative impact on the conducted emission measurements. Sometimes these auxiliary functions generate emissions infrequently, making it challenging to locate and isolate the root cause. An instrument with a very fast FFT analysis capability is essential to find infrequent events efficiently.

03-Mar-2023

Voice over IP for air traffic control

19-Nov-2012

With AMPTUNE amplifier nonlinearity can be measured with signals that are typical for the signals encountered by the amplifier in day-to-day use. The measurement can be checked by pre-distorting the control signal. Also, the results can be automatically stored for further processing with external programs.

26-Oct-2005 | AN-No. 1MA27

This application note describes how Bluetooth devices are tested and measured using the R&S CMU200/CBT by means of the CMUgo/CBTgo remote control program or manual operation.

06-Oct-2006 | AN-No. 1CM50

Measurements of very high noise figure components are performed for a number of reasons. For instance, in a wide range of applications, devices under test (DUT) are characterized within a complex test setup that includes high losses before or after the low noise DUT. In case of high frequencies, the switch matrix with complex signal routing and cables might have a very high loss. In other cases, the device might be embedded in a test setup where direct access is physically impossible, on-wafer probing is one example for this case. Using conventional measurement equipment, the noise figure measurement of such a device is very unstable if not impossible at all.

24-Jun-2020 | AN-No. 1EF110

Compliance testing is essential to ensuring that dynamic random access memory (DRAM) signals meet the JEDEC specifications for parameters such as timing, slew rates and voltage levels. For system verification and debugging, eye diagram measurements are the most important tools for efficiently analyzing the signal integrity in any digital design. The specific nature of DDR requires a dedicated solution with a powerful read/write separation to get meaningful eye diagrams on the DDR data bus.

19-Feb-2019

R&S AVBrun, Broadcasting and Multimedia T&M, UltraHD R&S AVBrun Conformance testing solution for MHL/HDMI CTS sink/source R&S®AVBrun - Conformance testing solution for MHL/HDMI CTS sink/source R&S AVBrun, Broadcasting and Multimedia T&M, UltraHD R&S AVBrun Conformance testing solution for MHL/HDMI CTS sink/source R&S®AVBrun - Conformance testing solution for MHL/HDMI CTS sink/source R&S AVBrun, Broadcasting

14-Sep-2015

Rohde & Schwarz presents the R&S®ATS1000 antenna test system, a highly accurate solution for testing 5G antennas up to mmWave frequencies in a mobile shielded chamber.

17-Oct-2017

This application note describes how to generate the noise field for ambient noise rejection tests according to 3GPP TS 26.132, sections 7.9 and 8.9.

12-Oct-2010 | AN-No. 1GA51

Most of the tests specified in the standard TIA-98 that a CDMA2000 mobile station has to fulfill can be performed by the Universal Radio Communication Tester R&S®CMU200 without further assistance. Other tests, however, require additional instruments, for instance for generating interfering signals. Some tests of the standard TIA-98 need features that a tester optimized for production cannot offer, for example high dynamic spectrum analysis up to 12.75 GHz. This Application Note shows how to perform these tests easily with the remote-control software CMUgo, using the R&S®CMU200 in combination with R&S®SMU, R&S®SMJ, R&S®SMIQ, or R&S®SML signal generators, and R&S®FSQ, R&S®FSU, R&S®FSP, or R&S®FSL spectrum analyzers. New test items and sequences will therefore be included in the CMUgo software v1.9.8 to remote-control the R&S®CMU200, as well as the signal generators and spectrum analyzers. They are presented in this Application Note.

05-Jan-2012 | AN-No. 1MA86

The introduction of the transmission of compressed TV signals to MPEG2 and DVB for cable, satellite and terrestrial (COFDM) lead to the creation of many abbreviations that have to be explained to the “uninitiated”. In the previous three lines, three abbreviations whose meanings are not obvious have already been mentioned. A table explaining what these abbreviations mean is therefore essential.

20-Jul-2001 | AN-No. 7BM27

The aim of this application note is to provide information regarding Rohde & Schwarz (R&S®) instrument drivers for R&S®CMU200. This document describes how to use the R&S®CMU200 VXIPlug&Play drivers in Microsoft Visual Basic.NET or C# using Visual Studio.

30-Jun-2009 | AN-No. 1MA157

Since June 2017 almost all radio transmitters and receivers sold or put into operation in the European Union have to be tested for immunity against interferers in adjacent frequency bands. ETSI standard EN 303 345 defines the tests to be performed on broadcast sound receivers, and the requirements to be passed.This application note describes the test procedures and provides script files and interferer signals for the Broadcast Test Center R&S®BTC.

29-May-2020 | AN-No. 1GP117

A measurement campaign quantifying the impact of intermodulation in 5G TDD networks

Critical infrastructure: With the deployment of TDD networks, the mobile network community recognizes the critical importance of cell synchronization and the use of uniform TDD patterns across different networks for the proper operation of mobile radio networks. Variety of scenarios: Possible scenarios include cross-border situations, interactions between private campus networks and public mobile networks, and accidental synchronization chain breaks or misconfigurations within the mobile network.Measurement techniques: To quantify the effects of non-synchronized cells and using different TDD pattern in neighboring networks, R&S, in collaboration with TU Dresden and Advancing Individual Networks GmbH (AIN), conducted a measurement campaign using movable networks with full control over all network parameters. This campaign measured the effects on uplink and downlink throughput, mapping these to RSSI/RSRP values received at the interfered site.Customer benefits: The available quantification is valuable for predicting and assessing potential interference scenarios before setting up and operating a new cell site.

11-Sep-2024 | AN-No. 8NT18

This application note describes how to use the generic interface in R&S®AdVISE for remote operation.

19-Jun-2020 | AN-No. 1S002