1GA59 1GA59

6月 29, 2012 | AN-No. 1GA59

本应用指南提供软件和说明，可用于简单检查移动电话的声学性能。指南主要面向服务中心和维修站，这些机构需要对出现故障的移动电话进行入库测试，并对维修后的移动电话进行最终测试。软件的亮点在于测试时间短且使用简单，并且保证结果的准确度和可重复性。

12月 14, 2017 | AN-No. 1GA69

R&S®VISA 是一个标准化软件库，支持通过多种接口和从电脑应用中检测到的各类联网测试与测量仪器进行快速通信。R&S®VISA 还包括一个跟踪工具，可同步监控多个应用和测试与测量仪器之间的通信，并支持借助高效滤波器进行针对性分析。

5月 26, 2020 | AN-No. 1DC02

1GA48 1GA48

6月 17, 2009 | AN-No. 1GA48

源测量单元 R&S®NGU401 和 R&S®NGU201 能够精确测量亚微安到安培范围内的电流。本应用指南介绍了一种工具，可利用仪器的任意功能生成电压或电流扫描。快速记录功能可以在扫描期间捕获电压和电流值。然后，应用程序会测定每个扫描步骤的电压和电流值，并将结果绘制成伏安曲线。此工具可用于测量二极管、LED 和太阳能板等所有双极设备的特性。本应用指南还可与直流电源 R&S®NGM201 和 R&S®NGM202 结合使用。

2月 15, 2021 | AN-No. 1GP129

1MA196 1MA196, Forum, 应用程序, 仪器, 远程, 控制, Python, 脚本, R&S Forum, RS Forum, R&SForum, RSForum 使用 R&S®Forum 应用程序实现仪器远程控制 使用 R&S®Forum 应用程序实现仪器远程控制 1MA196 1MA196, Forum, 应用程序, 仪器, 远程, 控制, Python, 脚本, R&S Forum, RS Forum, R&SForum, RSForum 使用 R&S®Forum 应用程序实现仪器远程控制

6月 28, 2018 | AN-No. 1MA196

此应用指南中提供的仪器设置有助于分析存入波形文件中的退化的语音信号，并且显示 FFT 频谱及波形。

9月 05, 2014 | AN-No. 1GA66

R&S® CMU200 与 R&S® UPV 结合，适用于各项移动电话语音功能测试，比如根据 3GPP 26.132 的声学测试或根据 ITU-T P.862 (PESQ®) 或 ITU-T P.863 (POLQA®) 的语音质量测试。此应用指南解释了在这些任务中如何使用 R&S® CMW500 代替 R&S® CMU200。

7月 25, 2014 | AN-No. 1GA65

本应用指南提供了一种应用程序以在音频分析仪 R&S®UPV 或 R&S®UPV66 上进行 PESQ、POLQA 和延时测量，以便进行电平调整、测试自动化和报告。

5月 08, 2013 | AN-No. 1GA62

混响时间和早期反射等声学特性对于试验室、会议室（确保声音清晰可闻）和音乐厅（保障音乐表演）非常重要。本应用指南解释了这些声学特性的基础，并提供了用于测量的应用程序。

7月 10, 2012 | AN-No. 1GA61

Spectrum Rider, FPH, FSH, ZPH, Cable Rider, ZVH, 5G, Interference hunting, Zero span mode, G NR TDD signal Handheld solutions from Rohde & Schwarz support a gated trigger, enabling users to separate uplink and downlink signals in the time domain. 5G NR – Interference hunting in TDD network uplink Spectrum Rider, FPH, FSH, ZPH, Cable Rider, ZVH, 5G, Interference hunting, Zero span mode, G NR TDD signal

Sep 18, 2025

Flexible, scalable and cost-effectiveThe R&S®RadEsT automotive target generator and car learning to act (CARLA) open-source driving simulator enable realistic radar and camera simulation in an open-source setup – free from the constraints of proprietary solutions.

Sep 08, 2025

模拟电路（例如运算放大器）通常需要通过电源地、正电源轨和负电源轨进行的对称供电。电源地是电路中模拟信号的参考点。R&S® 多通道电源的通道浮地，各通道之间及其与安全地之间完全电隔离。这最大程度保障了灵活性，既可以将通道并联或串联来提供更大的输出电流或电压，也可以将电源用于分路供电或对称供电。本应用指南介绍了如何配置两个输出以提供正负电源轨，实现对称供电。指南中的说明内容同样适用于 R&S® 多通道电源的已停产型号以及未来将推出的型号。

9月 04, 2025 | AN-No. 1GP144

As vehicles integrate more ADAS & Automated Driving (AD) functions, precise radar validation is essential for safety features like AEBSS and SAE Level 2 & 3 automation. Simulation-based testing offers flexibility but lacks real-world accuracy, while road testing is costly and inconsistent. Hardware-in-the-Loop (HIL) solutions bridge this gap, enabling real-time radar sensor evaluation with high repeatability.Rohde & Schwarz supports this with the R&S®AREG800A radar echo generator and R&S®QAT100 antenna array, simulating dynamic targets in angle, range, velocity, and size, and integrating via Open Simulation Interface (OSI). With cutting-edge radar test solutions, R&S ensures safer, more reliable ADAS/AD systems.This educational note explores the current state of closed-loop testing for radar-based hardware, focusing on how Hardware-in-the-Loop (HIL) systems enable realistic validation of automotive radar sensors. It highlights key driving scenarios that HIL must address and demonstrates how the R&S®AREG800A radar echo generator and R&S®QAT100 antenna array support closed-loop validation.

Sep 03, 2025

在高频下进行准确测量，对于表征放大器、混频器和差分线等有源和无源器件的特性至关重要。

8月 14, 2025

混频器是变频过程中的关键器件，广泛应用于通信和雷达系统。

8月 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 | AN-No. 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 | AN-No. 1SL416

最终部署等应用中使用的宽带调制负载牵引信号能够真正洞察射频前端性能。但是，当阻抗发生变化时，射频放大器的行为会有所不同。当射频放大器将信号驱动到宽带天线时，其行为会因阻抗变化而异，并且无法预测或计算。

7月 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 | AN-No. 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 | AN-No. 1SL418

R&S®ZNA 矢量网络分析仪可以在真实工作条件下执行大功率放大器测试。

7月 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 | AN-No. 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 | AN-No. 1C111

R&S®ZNA 矢量网络分析仪只需单次连接，即可多方位测试收发模块 (TRM) 和有源电子扫描阵列 (AESA) 雷达。

6月 12, 2025

R&S®ZNA 双端口矢量网络分析仪结合简单设置，能够可靠测量（高增益）接收机和低噪声块转换器 (LNB) 的特性。

6月 12, 2025

汽车雷达传感器隐藏在保险杠中，必须能够在正确的频率范围内发射信号。为了有效隐藏传感器，雷达透明区域和车辆其他部位的喷漆通常一样。选择喷漆和涂料时，需要了解保险杠材料的特性。以前这需要结合使用准光学或波导装置与矢量网络分析仪 (VNA)。本应用说明介绍了一种简单方法，能够使用 R&S®QAR50 汽车天线罩测试仪在 76 GHz 至 81 GHz 的雷达频率范围内分析材料特性。

6月 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 | AN-No. 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 | AN-No. 1SL414

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 | AN-No. 1SL413