Esta nota de aplicación propone desfasadores digitales de nivel para conectar interfaces I²S R&S®UPP-B2 y R&S®UPV-B41 al dispositivo bajo prueba con un nivel lógico de tensión diferente a 3,3 V.

mar 27, 2020 | N.º de nota de aplicación 1GA71

This paper reviews the classical spectrum analyzer measurement of L(f) and its shortcomings and discusses how modern phase noise test sets measure phase noise and avoid the limitations imposed by direct spectrum measurements.

Mar 31, 2020

La mayoría de notas de aplicación para el analizador de audio R&S® UPV incluyen un programa de aplicación que se ejecuta localmente mediante la opción del controlador de secuencia universal UPV-K1. Esta nota de aplicación explica cómo pueden modificarse los programas de control de secuencia para ejecutarse en un PC remoto mediante la opción de control remoto UPV-K4.

jun 30, 2012 | N.º de nota de aplicación 1GA60

Esta nota de aplicación ofrece un programa de aplicación e instrucciones para llevar a cabo test de la calidad de voz y medidas de retardo en una red en servicio utilizando del analizador de audio R&S®UPV.

dic 14, 2017 | N.º de nota de aplicación 1GA68

Versátil herramienta de software para instrumentos Rohde & SchwarzRSCommander es una herramienta de software versátil para una extensa gama de analizadores de espectro y de redes, generadores de señales y osciloscopios de Rohde & Schwarz. Facilita la detección automática de instrumentos y permite generar capturas de pantalla, leer trazas, transferir archivos y crear archivos de comandos con gran facilidad.

dic 24, 2017 | N.º de nota de aplicación 1MA074

La combinación de R&S®CMU200 y R&S®UPV se emplea para probar diversas funciones de voz en teléfonos móviles como, p. ej., pruebas acústicas según 3GPP 26.132 o pruebas de la calidad de voz según ITU-T P.862 (PESQ®) o ITU-T P.863 (POLQA®). Esta nota de aplicación explica cómo sustituir el R&S®CMU200 por el R&S®CMW500 para estas tareas.

jul 25, 2014 | N.º de nota de aplicación 1GA65

Las propiedades acústicas como el tiempo de reverberación y reflexiones tempranas son importantes para las salas de pruebas y para garantizar la inteligibilidad de la palabra y la calidad musical en salas de reuniones y de conciertos. Esta nota de aplicación explica los principios básicos que subyacen a estas propiedades y ofrece un programa de aplicación para medirlas.

jul 10, 2012 | N.º de nota de aplicación 1GA61

Esta nota de aplicación ofrece un programa de aplicación para ajuste de nivel, automatización de pruebas y elaboración de informes con PESQ, POLQA y medidas de retardo en los analizadores de audio R&S®UPV o R&S®UPV66.

may 08, 2013 | N.º de nota de aplicación 1GA62

La estructura de medición del instrumento que se ofrece en esta nota de aplicación permite analizar una señal de voz degradada almacenada en un archivo de onda y visualizar su espectro y traza FFT.

sept 05, 2014 | N.º de nota de aplicación 1GA66

At these high frequencies, accurate measurements are essential for characterizing active and passive components such as amplifiers, mixers and differential lines.

Aug 14, 2025

Mixers are critical components in frequency conversion processes and commonly used in communications and radar systems.

Aug 14, 2025

Electric (EV) and hybrid electric (HEV) vehicles have both high-voltage (HV) and low-voltage (LV) electric systems. The LV systems are typically unshielded (infotainment, lighting, sensors etc.) and HV systems (battery packs, inverters, electric motors etc.) are shielded. The HV systems ranges from 400 V to 1500 V and the LV system ranges from 12 V to 48 V. The switching operations in HV systems can generate significant electromagnetic noise that may couple into the LV system and degrade performance or cause malfunctions.The HV/LV coupling tests, as defined in CISPR 25, specify the test setup in which HV systems are modified to inject electromagnetic disturbances at predefined levels, depending on the classification of the equipment under test (EUT). These tests also outline methods for measuring the coupling attenuation between HV and LV systems. Additionally, they define procedures for measuring conducted emissions (current and voltage) on LV systems during HV system operation. Furthermore, the standard includes methods to measure radiated noise (electric field) emissions generated when operating HV Systems. The HV/LV coupling tests are emission tests in line with CISPR 25 but some require an immunity test setup to inject disturbance into the system. This application note describes how to set up R&S®ELEKTRA and perform HV/LV coupling attenuation measurements.

Jul 31, 2025 | N.º de nota de aplicación 1EE29

This application note provides a detailed guide on performing FCC KDB987594 D02 Test Cases K&L using R&S®CMX500 OBT, focusing on FCC regulatory compliance testing for devices operating in the 6 GHz band in US.It begins by discussing the FCC's initiatives to open the 6 GHz band for unlicensed use, emphasizing the importance of Automated Frequency Coordination (AFC) systems to manage power levels and avoid interference with incumbent services.The guide outlines specific requirements for device types 6CD and 6FX, which must adjust their power levels based on information in beacon of access point. It also delves into the technical aspects of WLAN power control mechanism according to IEEE 802.11 specifications, highlighting the complexity of power adjustment features for devices operating in the 6 GHz band.This guide explains the advantages of using the CMX500 OBT tester, which can emulate various WLAN signaling scenarios, including standard and low-power access points. It provides detailed procedures for conducting Test Cases K and L, which focus on demonstrating proper power adjustment based on associated access points and ensuring client devices adjust its power appropriately.

Jul 30, 2025 | N.º de nota de aplicación 1SL416

Las señales load-pull con modulación de banda ancha, como las que se emplean en instalaciones definitivas, permiten verificar el verdadero rendimiento de los front-ends de RF. Sin embargo, los amplificadores de RF se comportan de forma diferente según la impedancia. Es decir, si varía la impedancia, el comportamiento de los amplificadores de RF es distinto al insertar señales en una antena de banda ancha, y este comportamiento no se puede predecir ni calcular.

jul 26, 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.

Jul 24, 2025 | N.º de nota de aplicación 1EE28

As DisplayPort evolves to support ultra-high resolutions and increased data rates, robust compliance testing is essential to ensure interoperability across devices and interconnects. This application note provides a structured overview of physical-layer testing for DisplayPort source transmitters and passive cables, aligned with VESA CTS v2.1. The note covers key test procedures using Rohde & Schwarz solutions, including oscilloscope-based measurement at standardized test points, automated test execution with ScopeSuite, and signal integrity debug via equalization and jitter decomposition. It further details cable characterization using mixed-mode S-parameter analysis on a Vector Network Analyzer (VNA), with support for simulated eye diagrams and TDR-based impedance diagnostics. Practical setup examples and product references are provided to help engineers perform repeatable, standards-compliant DisplayPort PHY validation.

Jul 16, 2025 | N.º de nota de aplicación 1SL418

El analizador de redes vectoriales R&S®ZNA permite realizar medidas en amplificadores de alta potencia en condiciones reales de operación.

jul 14, 2025

Best practices for mobile network testing for mission-critical applications

Key Points: Mission-Critical Infrastructure: Military operations require extremely high reliability and availability, as any downtime can result in compromised missions and significant strategic losses. The reliability of communication networks is crucial to ensure seamless execution of military operations. Fundamental requirements: Military applications often require low latency and sustainable latency to ensure real-time communication and control, particularly in situations where split-second decisions can mean the difference between success and failure. This is critical for applications such as command and control systems, surveillance, and reconnaissance. Measurement Techniques: As soon as the radio access network is used, innovative testing methods are needed beforehand to proactively test the network capability and to identify any potential issues. We propose a standard test procedure for the characterization of a network regarding military use-cases that covers a representative set of different, common types of network traffic.

Jul 02, 2025 | N.º de nota de aplicación 8NT21

SA Mode According to 3GPP 38.521-1

Device certification for compliance with 3GPP specifications is a crucial step in the launch of 5G NR user equipment (UE). As the demand for high-performance connectivity continues to rise, ensuring that devices meet industry standards is essential for delivering reliable and efficient service. To ensure optimal modem performance, RF pre-conformance testing, also known as design verification, needs to be initiated early in the product development process. This approach enables teams to swiftly identify and address potential issues, minimizing delays and enhancing the overall quality of the final product.The R&S®CMX500 3GPP RF pre-conformance WebGUI solution offers a fast and intuitive platform for executing NR-FR1 Standalone (SA) test cases based on the 3GPP 38.521-1 specification. Its manual verification capabilities make it particularly well-suited for early-stage validation, debugging, and step-by-step verification of test cases, leveraging the comprehensive toolset provided by the R&S®CMX500 WebGUI. Test case procedures are optimized for R&D use cases, while using the most relevant configurations from the specification.This application note serves as a comprehensive guide for R&D professionals, detailing the setup, configuration, execution, and verification of selected 3GPP pre-conformance test cases with just a few clicks in the GUI. Please note that the test steps outlined in this document require the CMX-KC661B license (SA FR1 3GPP RF Test Scenarios), in addition to the NR signaling license CMX-KS600B and the NR FR1 measurement license CMX-KM600. All descriptions, configurations and limits are based on 3GPP TS38.521-1 V18.4.0 (2024-11).

Jun 25, 2025 | N.º de nota de aplicación 1C111

El analizador de redes vectoriales R&S®ZNA permite caracterizar con facilidad y de forma fiable receptores (de alta ganancia) y convertidores en bloque de bajo ruido (LNB) con una unidad de R&S®ZNA de dos puertos y una configuración sencilla.

jun 12, 2025

El analizador de redes vectoriales R&S®ZNA permite realizar test completos de módulos transmisores/receptores (TRM) y radares de barrido electrónico activo (AESA) con una única conexión.

jun 12, 2025

Los sensores radar ocultos en los parachoques de los automóviles deben transmitir en el dominio frecuencial correcto. Para que los sensores queden camuflados, las áreas transparentes al radar se suelen pintar igual que el resto del vehículo. A la hora de seleccionar la pintura y el revestimiento de los parachoques es necesario conocer las propiedades del material. Antiguamente se utilizaban para ello configuraciones de medida cuasiópticas o basadas en guía de ondas con analizadores de redes vectoriales (VNA). Esta ficha de aplicación describe un método simplificado para la caracterización de materiales en el dominio frecuencial de los radares de automóviles (de 76 GHz a 81 GHz) utilizando el comprobador de radomos R&S®QAR50 para automoción.

jun 11, 2025

Compliance and Pre-compliance testing are very important topics during the development of any Wireless DeviceIn this document the differences between Conformance testing vs. Pre-conformance tests will be explored as well as the Rohde & Schwarz offerings to conduct these tests

Jun 05, 2025 | N.º de nota de aplicación 1C110

The purpose of this document is to provide a step-by-step guidance on how to perform VESA compliance testing on DisplayPort 80 cable assembly.Throughout this Method of Implementation (MOI), procedures will detail how to perform such VESA compliance testing using the R&S® ZNB lineup of Network Analyzers.

May 19, 2025 | N.º de nota de aplicación 1SL414

The purpose of this document is to provide a step-by-step guidance on how to perform VESA compliance testing on DisplayPort 8k cable assembly.Throughout this Method of Implementation (MOI), procedures will detail how to perform such VESA compliance testing using the R&S® ZNB lineup of Network Analyzers.

May 19, 2025 | N.º de nota de aplicación 1SL412

The purpose of this document is to provide a step-by-step guidance on how to perform VESA compliance testing on DisplayPort 54 cable assembly.Throughout this Method of Implementation (MOI), procedures will detail how to perform such VESA compliance testing using the R&S® ZNB lineup of Network Analyzers.

May 19, 2025 | N.º de nota de aplicación 1SL413

New function for R&S®M3SR Series4400 radios

May 16, 2025

The R&S®FSWP phase noise analyzer and VCO tester is a high-end instrument that accurately analyzes noise in key radar and communications system components. Phase noise measurements are used to derive the large-signal noise figure for a device under real-world operating conditions.

May 16, 2025

Test y validación integrales de la segmentación de red en dispositivos 5G con asignación de recursos dinámica gracias al comprobador de radiocomunicaciones CMX500.

may 08, 2025

R&S®RadEsT – reflector de esquina electrónico

abr 08, 2025