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  • Applications

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Learn how to configure Rohde & Schwarz products to fit your application. Search our database by product, technology, or application to find relevant technical documents.

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Find the latest firmware, software, drivers, manuals, brochures. specifications and technical literature in our Download Center

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PESQ® Measurement for WCDMA with R&S®CMUgo

Recent mobile test methods could not evaluate the quality of data reduced speech signals with different coded and decoded signals. The Perceptual Evaluation of Speech Quality (PESQ) provides the solution for this measuring problem. WCDMA PESQ is an add-on tool for CMUgo for automatic measurement of the PESQ for WCDMA mobile phones according to recommendation ITU-T P.862.1 featuring selectable fading profiles and variable Additional White Gaussian Noise (AWGN).

05-Jan-2012 | AN-No. 1MA137

Battery Life Optimization in IoT devices with the Multi-Channel Power Probe

This application note describes Battery Life Measurements with the R&S®RT-ZVC02/04 Multi-Channel Probe. The measurements are described with the use of an oscilloscope. The R&S®RT-ZVC Multi-Channel Probe can be used with R&S®RTE1000, R&S®RTO2000 or R&S®RTP.

17-Jan-2019 | AN-No. 1TD07

Optimize the data traffic generated by IoT and mobile devices

Integrated end-to-end data solution with IP traffic analysis and protocol statistics allows detailed analysis of data traffic generated by IoT and mobile devices.

06-Jun-2017

Conversion Gain Measurements on Mixers with Different Input and Output Impedances

This Application Note describes how to configure and calibrate R&S ZVR network analyzers for conversion gain measurements of devices with two ports that have different impedances. Thus accurate measurements on frequency-converting devices such as low noise converters of sattellite receivers are possible.

16-May-2002 | AN-No. 1EZ50

Generating and Analyzing CDMA2000 Signals

This application note describes measurements compliant with the cdma2000 standard described in TIA/EIA-97-C and TIA/EIA-98-C. The primary focus is on solutions for generating and analyzing cdma2000 signals with equipment from Rohde & Schwarz. The special characteristics that make the signal generators and signal analyzers eminently suitable for this purpose are detailed.

27-Mar-2001 | AN-No. 1MA34

Measuring Bit Error Rate using the R&S®SFU-K60 Option

The measurement of bit error rate (BER) is an important test procedure for determining the performance of a receiving terminal. This is especially important for set top box and chipset manufacturers who need to know if their product is able to meet the specification under a predefined noise condition. This Application Note describes the technique using an Rohde & Schwarz SFU to measure the BER of digital set top boxes.

19-Dec-2006 | AN-No. 7BM51

Signal integrity analysis for high speed datacom interfaces

Analyzing high speed datacom interfaces is an important task and ensures signal integrity. One major challenge of this analysis is the connection between the physical interface and the oscilloscope, as most of the datacom interfaces do not provide test connections suitable for RF. A test fixture is required as a bridge between the high speed datacom IF and the RF connector of the oscilloscope, but this will affect the signal integrity measurement. The R&S®RTP and R&S®RTO oscilloscopes with the advanced jitter option can analyze and separate jitter contributions. Additionally, the option can evaluate the impact of test fixtures and traces inherently and give the user a good understanding of the impact of their test setup.

15-Jul-2024

Simplifying receiver testing

The advanced generation capabilities of the R&S®SMW200A vector signal generator simplify receiver testing up to 20 GHz by removing the need for multiple signal generators. This single-box solution brings the real world into your lab.

05-Aug-2014

Demonstration of BER Test with AMIQ controlled by WinIQSim

A test setup is described for easy demonstration of the Bit Error Rate Test (BERT) function of AMIQ/AMIQ-B1. The test setup contains I/Q Modulation Generator AMIQ/AMIQ-B1 controlled by I/Q Simulation Software WinIQSIM, Vector Signal Generator SMIQ and Spectrum/Vector Signal Analyzer FSE/FSE-B7. The FSE with FSE-B7 is used as online FSK demodulator (setting: Analog demodulation, FM Signal, DC coupling, Real Time On) to demodulate the SMIQ RF signal FSK-modulated by PRBS data. The AMIQ is controlled by WinIQSIM software and receives the demodulated AF output signal from the FSE for BER testing.

29-Sep-1998 | AN-No. 1MA16

LTE UE receiver performance measurements

LTE user equipment (UE) receiver performance has significant impact to cellular radio network coverage and capacity. It determines the maximum data throughput across the air interface between the LTE base station (eNB, evolved node B) and the mobile network subscriber UE, thus it determines the total capacity across the air interface. Therefore, it is one of the most important measurements to verify the actual receiver performance of individual devices, and a key metric to compare different devices, in particular.This paper shall give an introduction to receiver performance measurements and discusses the measurement metrics as well as the challenges of over the air (OTA) measurements.

31-Aug-2017 | AN-No. 1ST001

Generating 3GPP Multi Carrier Signals for Amplifier Tests with R&S®SMIQ03HD and R&S®WinIQSIM™

Power amplifiers for WCDMA/3GPP base stations should have the best possible spectral purity and smallest intermodulation distortion, in order to prevent disturbance of the neighbouring channels. To test such amplifiers, signal generators are required that can generate WCDMA signals with low noise and intermodulation over a very wide dynamic range. The R&S SMIQ03HD signal generator with its outstanding Adjacent Channel Leakage Ratio (ACLR) performance is especially designed for these applications. This application note describes how to use SMIQ03HD to get the best performance with 3GPP single and multi carrier signals.

02-Sep-2002 | AN-No. 1GP52

Test Report Generation with R&S®EMC32-K84

The option R&S®EMC32-K84 extends the internal report generator to support the generation of a summary test report over all selected test cases done for a DUT. Additional the report is directly written to Microsoft®Word and thus can be easily combined with customer specific report templates.This Application Note shows all necessary steps on an example report to configure and execute the report generation.

23-Apr-2015 | AN-No. 1SP09

Increasing confidence of full-bridge converter operation during the design process

Power converters with a full-bridge topology are frequently used in telecommunications and servers that need to be compact, efficient and cost sensitive, making them more complex. Switching patterns for all the main primary switches including synchronous rectifier switches need to be validated after the first protype is built. This complex validation requires proper measurement of switching patterns to prevent catastrophic switching patterns. Expertise and the right measurement tools are essential when identifying unexpected events in the converter switching process.

17-Jan-2024

R&S®SMW-K546 Digital Doherty

The R&S®SMW-K546 software option aids the optimum design of multiple path amplifiers, including Doherty Amplifiers.This application note provides guidance on the use of the software option, both for direct control and programming via the touchscreen, and for remote control using SCPI.The software and associated techniques may similarly be used to develop other quasi-linear, multi-path amplifiers; including Balanced, Anti-Phase (so-called Push-Pull), Distributed, Spatially Combined, Load Modulated Balanced and many more.

13-Jul-2020 | AN-No. GFM345

Time Domain Measurements using Vector Network Analyzer ZNA

Vector Network Analyzers of t ZNA and ZNB family are able to measure magnitude and phase of complex S-parameters of a device under test (DUT) in the frequency domain. By means of the inverse Fourier transform the measurement results can be transformed to the time domain. Thus, the impulse or step response of the DUT is obtained, which gives an especially clear form of representation of its characteristics. For instance, faults in cables can thus be directly localized. Moreover, special time domain filters, so-called gates, are used to suppress unwanted signal components such as multireflections. The measured data "gated" in the time domain are then transformed back to the frequency domain and an Sparameter representation without the unwanted signal components is obtained as a function of frequency. As usual, other complex or scalar parameters such as impedance or attenuation can then be calculated and displayed.

30-Jul-2020 | AN-No. 1EP83

Testing passive remote keyless entry systems

Due to recent security concerns, ultrawideband (UWB) technology is making its way into automotive key fobs. Rohde & Schwarz offers a flexible test solution for the high demands of R&D and highthroughput production environments.

21-Mar-2017

Optimize Doherty power amplifiers

Speed up development, verify best performance and start up series production with confidence. Doherty designs achieve high efficiency, greater linearity and increased output power. Get deep insight into your design with a dual-path, precisely synchronized source driving the Doherty amplifier and improve your yield.

12-Jul-2018

Advanced Bluetooth® RF Tests with R&S®CMWrun

The Rohde & Schwarz Bluetooth RF test solution with the R&S®CMW and R&S®CMWrun is closely aligned to the Bluetooth RF Test Suite. Most of the tests can be performed with the equipment under test connected to a single CMW which is remotely controlled via R&S®CMWrun running on an external computer. Some of the tests require an additional signal generator. This document describes common setups for these tests and the required configurations.

04-May-2015 | AN-No. 1MA261

Apple iPad Remote Control for Broadcasting T&M Instruments

When installed on an Apple iPad*, a remote desktop app provides a convenient way to remotely control measuring instruments over a WLAN connection.This is especially helpful when using measuring instruments that do not have their own display such as the R&S®VTS or R&S®SFC.The remote desktop app also gives users a detached way to control the instrument if, for example, the actual measuring instrument is installed in a place that is difficult to access.* Apple and iPad are trademarks of Apple Inc.

02-Oct-2012 | AN-No. 7BM82

R&S®VCS-4G for military ATC applications

Voice over IP for air traffic control

21-Nov-2014

Power supply control loop response measurements (Bode plot)

With a Rohde & Schwarz oscilloscope

13-Aug-2024

Speeding up Spectrum Analyzer Measurements

Test time is a critical parameter when it comes to evaluating the cost of test.This application note describes typical spectrum analyzer measurements in production environments and discusses different approaches to speed them up.

17-Nov-2014 | AN-No. 1EF90

Upgrade to ATSC Mobile DTV

This application note illustrates the upgrade from the available wireless TV standard ATSC to its expansion ATSC Mobile DTV described in the new standard A/153 (ATSCM/H), in which Rohde & Schwarz has played a major development role. An upgrade package makes it possible to efficiently extend existing ATSC infrastructures for ATSC Mobile DTV services. A central component of the ATSC Mobile DTV equipment is the R&S®AEM100 multiplexer. Together with the R&S®AVE264 H.264 Encoders, digital TV exciter (R&S®SX800) and Transmitters, it forms a complete ATSCM/H system.

22-Sep-2009 | AN-No. 7EB02

R&S IMS / Software Configuration and System Calibration according IEC / EN 61000-4-6 (conducted immunity)

This application note describes the software configuration, system calibration and test routine for EMC measurements according to the EMS standard IEC / EN 61000-4-6.

29-Mar-2007 | AN-No. 1SP33

GNSS receiver stimulation at automotive test beds for self-driving cars

Integrating the R&S®SMBV100B GNSS simulator into the AVL DRIVINGCUBE™ toolchain creates new possibilities for validating advanced driver assistance systems and autonomous driving functions at the vehicle level. Combining a complete vehicle on a vehicle test bed with physical sensor stimulation results in fast, reproducible and cost-efficient testing. All possible driving scenarios can be executed under realistic and safe conditions.

09-Jan-2020

R&S®DVM software video decoder

This Application Note provides a step-by-step description of all video decoding settings you need to make. It also contains valuable information about how to optimize replay for various applications.

02-Mar-2006 | AN-No. 7BM52

R&S®ZNB Vector Network Analyzer – Intermodulation Measurements Made Simple

This Application Note provides guidance on using the “Intermodulation Wizard” through an example measurement.

27-Mar-2013 | AN-No. 1EZ63

Mastering automotive radar EIRP measurement for peak performance

Automotive radars are essential to safety systems such as collision avoidance and adaptive cruise control. The radars are a pillar of ADAS/AD systems and an important part of sensor fusion. The effective isotropic radiated power (EIRP) of automotive radar sensors is the total power emitted from radar antennas and a comprehensive measure of signal strength and coverage capability (essential to assessing automotive radar sensor performance). The AREG800A automotive radar echo generator makes for easy EIRP measurements when validating automotive radar sensors.

06-Aug-2024

Measurement Characteristics of an Automotive LED Driver Based on a Hybrid Controller

This application note describes different measurement techniques and methods for an automotive lighting module based on a hybrid controller design. Of course, a lighting module in such an environment has to fulfil requirements according to the automotive standard, which is typically a relatively high-level standard compare to the industry standard. The oscilloscope is a perfect tool for this application to verify the set of requirements because time domain signals (analog and digital) are present in the whole design. Furthermore, measurements in the frequency domain have to be performed, which a modern oscilloscope can fulfil. In addition to the oscilloscope, a programmable power supply supports the measurement in several measurements. The set of requirements are the main reason why a hybrid controller from Microchip is a great choice for this design because it provides tremendous analogue and digital capabilities. The hybrid controller provides beside the analogue functions like an operational amplifier digital functions like analog-to-digital converter and interface functions like UART, CAN or LIN to interact with other systems. The programmable software part is hosted in the digital part. The digital part of the controller implements the communication interface and provides status information to the outer system controller. The light source itself has to avoid any flicker and shall be capable to dim to different lighting levels. Wide input voltage variations and efficiency have to be taken into account during the design of a converter dedicated for automotive applications. Nevertheless, the measurement considerations presented with the design are valid and applicable in other professional lighting industries as well.Thanks to Mr. Andreas Reiter and Mr. Milan Marjanovic from Microchip who provided us with hardware and software and their great expertise to create this application note.

08-Jun-2020 | AN-No. GFM339

Remote Operation of Windows Based T&M Instruments with Apple iPad

This document describes how a Windows®-based R&S® T&M instrument is remotely operated by an Apple iPad as if working on it locally. Step-by-step procedures are provided for setting up and configuring the T&M instrument and the iPad. On the iPad, a special App implements the Windows® 'Remote Desktop' functionality. T&M instrument and iPad are connected via WLAN (also denoted as Wi-Fi network).

28-Mar-2013 | AN-No. 1MA216

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Rohde & Schwarz (Australia) Pty Ltd
Rohde & Schwarz is striving for a safer and connected world with its leading-edge solutions. Committed to innovation for more than 90 years, the independent technology group acts long-term and sustainably, making it a reliable partner to its industry and government customers worldwide. Rohde & Schwarz (Australia) Pty Ltd was established in 1981. The company is 100% owned subsidiary of Rohde & Schwarz GmbH, Munich, Germany.
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