This application note provides an application program and instructions for performing speech quality tests and delay measurements in a live network, using the R&S®UPV audio analyzer.

14-Dec-2017 | AN-No. 1GA68

This application note provides software and instructions for a simple check of the acoustic performance of mobile phones. It targets mainly service centers and repair workshops which have to perform incoming tests of defective mobile phones and final tests of repaired mobiles. A focus is set on short test times and ease of use, without compromising accuracy and repeatability of results.

14-Dec-2017 | AN-No. 1GA69

Versatile Software Tool for Rohde & Schwarz Instruments

RSCommander is a versatile software tool for a wide range of Rohde & Schwarz spectrum-, network analyzers, signal generators and oscilloscopes. It allows for automatic instrument discovery, making screenshots, reading traces, file transfer and simple script creation.

24-Dec-2017 | AN-No. 1MA074

A large variety of measurements is performed in audio engineering in order to ensure transmission quality of analog and digital devices. An audio analyzer suitable for all these tasks will, therefore, incorporate a multitude of functions, resulting in a correspondingly large number of settings.This application note is to help test engineers using the R&S®UPP and R&S®UPV audio analyzers. It presents setting examples for all basic audio measurements to be performed immediately. For each setup, information is given on the type of measurement, the underlying standards, and on how to modify the graphic display results.

07-Jul-2014 | AN-No. 1GA64

This application program supports the logging and fast logging functionality of the power supplies R&S® NGM200, NGU201 and NGU401. Standard logging is also supported with power supply R&S® NGL200 and NGP800. Power supplies R&S® NGA100 and NGE100 are supported in the data collection mode. Charting functionality is available for logged voltage, current and power values.

14-Nov-2019 | AN-No. 1GP122

Acoustic properties like reverberation time and early reflections are important for test rooms as well as for speech intelligibility and music performance in assembly rooms and concert halls. This application note explains the basics behind these properties and offers an application program for their measurement.

10-Jul-2012 | AN-No. 1GA61

This application note provides an application program for level alignment, test automation and reporting with PESQ, POLQA and delay measurements on the Audio Analyzer R&S®UPV or R&S®UPV66.

08-May-2013 | AN-No. 1GA62

The instrument setup provided in this application note allows to analyze a degraded speech signal stored into a wave file and to display its FFT spectrum and waveform.

05-Sep-2014 | AN-No. 1GA66

The combination of R&S® CMU200 and R&S® UPV is in use for various tests of mobile phone speech functionality, such as acoustic tests according to 3GPP 26.132 or speech quality tests according to ITU-T P.862 (PESQ®) or ITU-T P.863 (POLQA®). This application note explains how to replace the R&S® CMU200 in these tasks with R&S® CMW500.

25-Jul-2014 | AN-No. 1GA65

R&S®RadEsT – electronic corner reflector

08-Apr-2025

R&S®RadEsT – radar multimeter

07-Apr-2025

Powerful tool for Rohde & Schwarz vector network analyzers (VNA) to simplify automated setup for complex measurements in R&D, verification and production labs

24-Mar-2025

Reverberation Chambers (RVC) have become popular as an alternative to Anechoic Chamber (AC) facilities for electromagnetic emission & immunity tests. Unlike AC, RVC reflects waves creating multipath environment. EMC testing using reverberation chamber is accepted in various EMC test standards across different industries. The RVC is cost effective allowing high field strength generation without excessive amplification needs, eliminates the need for complex positioning of antennas and DUTs increasing test speed and simulates real-world electromagnetic environments more accurately. To ensure accurate and efficient testing, specialized EMC test software is required for data acquisition, automation, and analysis. This application note describes how to setup Elektra and perform measurements in RVC.

20-Mar-2025 | AN-No. 1EE28

In the fast-paced world of automotive manufacturing, ensuring reliability and precision in radar sensors is paramount. Rohde & Schwarz provides advanced production testing solutions for automotive radar sensors and empowers tier 1 suppliers to deliver exceptional performance, safety and efficiency.

13-Mar-2025

Testing RF devices, like power amplifiers, requires a certain input power at the device under test (DUT). Sometimes, more power than a signal generator can deliver is needed. This may be the case when devices require higher input power, or when they need to be connected using long cables, which introduce large insertion losses at high frequencies. In these cases, an external amplifier can be used to deliver the required power to a DUT.This application note gives a guideline how to increase the power delivered to a DUT by an R&S®SMW200A vector signal generator using an external amplifier.It covers shifting the power reference plane from the generator output to the DUT input using an R&S®NRP power sensor and mitigating linear and nonlinear distortions using an R&S®FSW signal and spectrum analyzer.

12-Mar-2025 | AN-No. 1GP143

The shift from internal combustion engine (ICE) automobiles to electric vehicles (EV) has come with an array of new subsystems and components that introduce new EMC considerations. The level of complexity involved in automotive EMC testing increases with dynamic driving conditions where manufacturers not only have to refer to the framework standards offered, but must also improvise and establish new internal standards to ensure the vehicle and its internal components all function properly under all driving conditions. A number of challenges may arise when building a suitable test bench that thoroughly tests EVs and electrical components. This educational note dives into the development of dynamic EMC test systems, their inherent challenges, and how Rohde & Schwarz and AVL, one of the world’s leading mobility technology companies for development, simulation and testing in the automotive industry, have teamed up to provide a unified EMC test platform for dynamic driving conditions.

11-Mar-2025

The R&S®ZNA vector network analyzer enables comprehensive transmit/receive module (TRM) and active electronically scanned array radar (AESA) testing with a single connection.

28-Feb-2025

The CMW500 wideband radio communication tester and the CMX500 radio communication tester are ideal for testing smartphones and tablets to meet EU energy efficiency index standards.

28-Feb-2025

The R&S®ZVA-Zxxx and R&S®ZCxxx mmWave converters extend the R&S®ZNA vector network analyzer frequency range up to 1.1 THz.

27-Feb-2025

Automated testing against the Chinese national GNSS test standard (GB/T 45086.1‑2024) with R&S®CMWrun sequencer software and the R&S®SMBV100B vector signal generator

20-Feb-2025

Debugging and verifying the DDR DRAM memory interface in a system design can be challenging. The R&S®RTP high-performance oscilloscope zone trigger is ideal for READ/WRITE separation as a basis for analyzing signal integrity.

06-Feb-2025

With the rise of Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) satellite constellations for broadband data connectivity over the last few years, the need to dynamically simulate the channel between the satellite and user equipment (UE) or the satellite and the ground station (GS) has grown at a staggering pace. The satellite channel is subject to various atmospheric effects and the relative motion between the satellite and UE, resulting in frequency and level variations that depend on the satellite's position in the sky. Consequently, it is essential for manufacturers of related receivers and other hardware components to consider these effects during the design and production phases to ensure optimal performance and reliability.In this application note, the focus will be on giving an overview of the functionalities of the R&S Space Nexus and explaining how to use the software to create realistic fading files out of a given Two Line Elements (TLE) file that is describing the trajectory of a satellite. Afterwards the approach for using this file to simulate a realistic satellite fading scenario using the R&S®SMW200A equipped with a R&S®SMW-K820 (custom dynamic fading option), is explained

03-Feb-2025 | AN-No. 1GP147

High-speed serial interfaces often transmit data with differential signaling. For probing on the signal, trace differential probes are used. Besides the differential inputs, these probes often provide an additional connection for ground – especially the higher bandwidth models. The ground connection on the R&S®RT‑ZM modular multimode probes can be used to improve measurements on high-speed differential interfaces.

29-Jan-2025

A Fabry-Pérot open resonator (FPOR) provided by QWED allows dielectric sheets to be accurately characterized in the frequency range from 110 GHz to 170 GHz using just one fixture.

14-Jan-2025

More functions, greater processing power and growing data rates make high-speed system-on-chips (SoCs) power designs challenging. The increasing number of power rails that supply the various function blocks of modern CPUs, GPUs, FPGAs, ASICs and such require precise sequencing during power-up and powerdown. Supply voltage levels are also lowered to reduce power dissipation inside the SoC. Power integrity requirements are stricter and more supply current is needed on power rails. Multiphase buck converters continue to grow more popular for high-current power rails. The converters have many benefits, but designers also face challenges when it comes to power design and validation testing.

13-Jan-2025

Crucial for proper operation of mobile networks. Part 4 of the series on Cable and Antenna verification

Critical Infrastructure: Mobile base stations rely on a complex interplay of components, including often-overlooked elements like filter combiners, RF splitters and tappers, and cables, to deliver uninterrupted mobile communications.Vulnerability to Environmental Factors: Filter combiners, accessories, and cabling in mobile base stations are susceptible to harsh environmental stressors, which can lead to signal degradation and reduced system availability.Fundamental Properties: The functional integrity of mobile base station components is measured against key RF parameters, including frequency response and insertion loss, to ensure conformance to manufacturer and industry standards (e.g., 3GPP, ETSI).Measurement Techniques: Systematic and comprehensive testing is essential to validate the functional integrity of critical mobile base station components, detect latent defects, and optimize overall system performance.

09-Jan-2025 | AN-No. 8NT20

Protecting the public: the ARDRONIS counter drone solution from Rohde & Schwarz prevents drone related security threats at major events.

18-Dec-2024

LoRa is one of the most popular low-power wireless sensor network technologies for implementation of the internet of things (IoT), offering long-range communications compared to technologies such as Zigbee. Its name is derived from "long range" and it operates in license-free ISM bands. LoRa is a physical proprietary radio communications technique that is based on spread spectrum modulation techniques derived from chirp spread spectrum (CSS) technology.

12-Dec-2024

Crucial for proper operation of mobile networks - Part 3 of the series on Cable and Antenna verification

Key points: Critical Infrastructure: Leaky feeder systems are a crucial, yet costly to modify, element of in-building and tunnel infrastructure for mobile communication coverage.Vulnerability to Environmental Factors: The leaky feeder system's exposure to high humidity, extreme temperatures, and physical stress makes it prone to water ingress, corrosion, mechanical damage, and material degradation.Fundamental Properties: Changes in a leaky feeder system's characteristic impedance cause reflections of forward RF energy, resulting in discontinuities, which can occur at connectors, kinks, or compressions in the cable.Measurement Techniques: Due to practical limitations, leaky feeder system testing typically involves measuring insertion and return loss, supplemented by evaluating key performance indicators (KPIs) and user equipment reports to assess actual coverage and identify potential defects.

05-Dec-2024 | AN-No. 8NT19

When analyzing the robustness of data transmission systems, jitter is a key indicator. It is recommended to use jitter measurement instruments for both the time and frequency domain in order to differentiate between fast and slow moving artifacts.

22-Aug-2017