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ローデ・シュワルツは、測定器、原理、手法に関する当社の知識を共有し、お客様がローデ・シュワルツ測定器で最高のパフォーマンスを得られるよう支援するため、各種アプリケーション・ノート、アプリケーション・カード、アプリケーション・ビデオを作成しています。
1099 結果
5G NR Reduced Capabilities (RedCap) network scanning
Purpose of RedCap: RedCap is designed for use cases requiring reasonable data throughput, cost-efficient devices, reduced power consumption and smaller device footprint to support applications like wireless industrial sensors, video surveillance and smart wearables in which ultralow latency isn’t essential. Technology basics: Understanding the technology basics helps facing configuration complexities and avoiding potential coexistence issues with regular 5G. RedCap field verification: New mobile network technology introductions like 5G RedCap benefit from field measurements during their typical life-cycle phases (engineering, network roll-out, and operation). Measurement Techniques: In early phases of new technologies, passive network measurements using network scanners are reliable and effective in detecting actual network and cell configurations.
Apr 23, 2024 | AN 番号 8NT13
Today’s complex circuits must integrate several components that feed on different power levels. A robust circuit that ensures interoperability of these components needs carefully designed, clean and stable power distribution networks for power timing. At lower voltage levels, tolerance is defined in percentages and can make precise measurements challenging.
Apr 22, 2024
モバイルネットワークでのスペクトラムクリアランスは、ますます重要性を増しています。その背景としては、これまで他のサービスに使用されていた新しいバンドをプロバイダーが使用するようになったことがあります。これは、5G NRをロールアウトする場合に特に重要です。5G NRはすでに、未知の無線環境でTDDネットワークの世界的な配備を開始しています。この環境では、不要なトランスミッターからアップリンク干渉が発生する可能性があり、それらの干渉はダウンリンク信号でマスクされてしまうため、干渉探索の必要性が特に高くなります。ネットワークが切り替わる前に干渉信号を自動検出できれば、従来の手動による探索に加えて大きな助けになります。
4月 19, 2024
This application card examines the best practices for testing video service quality over mobile networks and discusses the different types of video services and recent changes in video streaming.
Apr 18, 2024
Best practices for national regulatory authorities
Key points:Importance of field measurements: Traditional network planning tools and models only offer an estimated view of mobile coverage. Field measurements are conducted under real geographical and load conditions, and therefore provide a more accurate picture and can discover interferences more effectively. Coverage investigations: When deploying a mobile network, operators must adhere to regulatory standards and licensing conditions. As a result, regulatory authorities carry out field measurements on a regular or ad hoc basis to validate compliance or investigate customer complaints. This process identifies coverage gaps and areas of poor network quality, enabling regulatory authorities to take actions to enhance service quality for consumers and guide network expansion.Foster competition: If the field measurements of the coverage and performance are performed on a scale representative of a given country, the transparency of these results can promote healthy competition between operators and better service for consumers, which is essential for economic growth and social development.Measurement Techniques: The harmonized methodology for measuring and evaluating data throughput and QoE based on popular services is described in ETSI TR 103 559.
Apr 15, 2024 | AN 番号 8NT14
Gated mode measurements in private 5G networks
Apr 11, 2024
R&S®NESTOR セルラーネットワーク解析ソフトウェアは、モバイルネットワークのトレースを解析することで、法執行機関のアリバイ検証をサポートします。R&S®NESTORを使用すれば、犯罪発生時に個人の携帯電話が特定の場所にあったかどうかを確実に把握できます。
4月 10, 2024
すべての電子機器には容量性または誘導性の部品が含まれており、スイッチオン時に突入電流が発生します。これは単なる運用の一部ではなく、極めて重要な側面であり厳格な管理が求められます。R&S®NPA パワーアナライザは、このような業務に最適な測定器です。
3月 28, 2024
今日の電子機器は非正弦波の不規則な電流を流すことが多く、ユニバーサル電源システムに高周波電流がフィードバックされます。CE準拠デバイスでは、このような電流のモニターが極めて重要であり必須です。R&S®NPA701 コンプライアンステスタは、シームレスかつ効率的にこのような電流をモニターします。
3月 28, 2024
今日の電子機器は非正弦波の不規則な電流を流すことが多く、ユニバーサル電源システムに高周波電流がフィードバックされます。CE準拠デバイスでは、このような電流のモニターが極めて重要であり必須です。R&S®NPA701 コンプライアンステスタは、シームレスかつ効率的にこのような電流をモニターします。
3月 27, 2024
O-RAN無線ユニット(O-RU)は、5Gネットワークの高い消費電力に大きく寄与しています。O-RANのイノベーションを犠牲にすることなくO-RUのエネルギー効率を高めることが最優先事項です。
3月 19, 2024
R&S®NESTOR cellular network analysis software supports law enforcement agencies (LEA) in forensics activities and crime scene investigations (CSI) by gathering information through analysis of surrounding mobile networks. R&S®NESTOR increases public safety by reducing crime scene investigation time by up to 50 %.
Mar 14, 2024
自動車業界は、電動化に伴う変革のさなかにあります。電動ドライブトレインの正確な測定と解析は、性能、効率、信頼性の向上に重要な役割を果たします。MXOオシロスコープは、このような測定に不可欠のテストツールとなっています。電圧/電流波形に関してリアルタイムに洞察が得られるため、エンジニアや作業者は、複雑なメカニズムを調査して、ドライブトレインの性能と効率を改善できます。
3月 12, 2024
P25 and FRMCS scanning
Key points: Critical Infrastructure: Learn about mission-critical communication for various agencies who deal with Public Safety such as first responders, police, firefighters, medics and its crucial role in ensuring safety of society.Reliability of Communication: Understand the challenges posed by mission-critical communication, highlighting performance and reliability needs and special requirements such as safe group communications.Technology Migration: Delve into the migration of mission-critical communication from long-standing narrow-band technologies to broadband use cases considering migration timelines.Measurement Techniques: Explore network measurement methods for passive testing of legacy MCX technologies planned to be used in the networks for quite some time (a later release of the document will focus on the broadband successors)
Mar 12, 2024 | AN 番号 8NT12
Reicherzer Josef (GF-BS1) 6G, AREG800A, MIMO, 車載用レーダーエコー発生器, 車載用レーダーテスタ, エコー発生器 6Gの世界に革新をもたらす統合型センシングおよび通信(ISAC)技術 6Gの世界に革新をもたらす統合型センシングおよび通信(ISAC)技術 Reicherzer Josef (GF-BS1) 6G, AREG800A, MIMO, 車載用レーダーエコー発生器, 車載用レーダーテスタ, エコー発生器 6Gの世界に革新をもたらす統合型センシングおよび通信(ISAC)技術 6Gの世界に革新をもたらす統合型センシングおよび通信(ISAC)技術 Reicherzer Josef (GF-BS1) 6G, AREG800A, MIMO, 車載用レーダーエコー発生器, 車載用レーダーテスタ, エコー発生器 6Gの世界に革新をもたらす統合型センシング
3月 11, 2024
Transformers are passive devices that are primarily used to convert or "transform" alternating current (AC) from one voltage level to another. One very common application of transformers is in AC to DC power supplies, in which mains voltage is stepped down before being rectified and filtered to produce DC. There are numerous other applications for transformers, such as providing electrical isolation or for impedance matching.This educational note provides a brief technical introduction to measurements made on the types of transformers used in electronics. These transformers are typically physically small, work on relatively low voltages or powers, and are used for “indoor” applications. Although many of the testing concepts described below also apply to the larger, higher-power "outdoor" transformers used for electrical power distribution, the specific tests and test procedures for these types of transformers are often specified by standards bodies such as the IEEE and may differ substantially from the types of measurements described here.Read this educational note and dive into the discussion about the six most important transformer measurements: turns ratio, mutual inductance, phase angle, primary and secondary inductance, leakage inductance, and interwinding capacitance.
Feb 28, 2024
Mobile network operators worldwide face cost pressures and escalating network complexity. The advent of 5G-NR has ushered in new use cases and flexibility, but it also comes with more stringent performance and availability requirements.Machine Learning can serve as a catalyst for the market to unearth deep insights that would otherwise remain concealed. It can also significantly streamline everyday tasks by fostering a smarter system that guides users through their routine work processes, rather than obliging them to repeat each (manual) step. Rohde & Schwarz Mobile Network Testing has focused its efforts on delivering Machine Learning use cases that distill relevant insights from drive testing data, thereby offering substantial benefits to users.This educational note explains the motivation and reasoning why this kind of approach is needed, what are the benefits of the machine learning offering and it takes a deeper look into how it can be used in various levels of statistical and technical analysis. Finally, this document provides real measurement results and analysis findings based on the Rohde & Schwarz post processing SW suite SmartAnalytics and its machine learning based features Call Stability Score and Network Utilization Rating.
Feb 28, 2024 | AN 番号 8NT10
Part 1 of the Cable and Antenna verification series – essential for Mobile Networks
Key points: Critical Infrastructure: Learn why the antenna system, as part of mobile base stations, is irreplaceable and demands meticulous attention due to its impact on network quality and availability.Vulnerability to Environmental Factors: Understand the challenges posed by weather conditions and environmental stresses on antenna systems, highlighting the importance of robust design and maintenance.Fundamental Properties: Delve into the core concepts of antenna systems, gaining insights into their transmit and receive characteristics, which serve as the foundation for effective measurement and verification.Measurement Techniques: Explore various measurement methods for antenna systems, focusing on return loss and decoupling, and their significance in assessing system performance and integrity.
Feb 23, 2024 | AN 番号 8NT11
初めての測定に役立つヒントとテクニック
抵抗、キャパシタ、インダクターは、電子回路の中で最も基本的な部品であり、 適切かつ正確に機能することが求められます。そのため、回路デザインでは、これらの部品を徹底的にテストする必要があります。通常、テストには、ラボや製造現場に欠かせないLCRメータを使用します。このアプリケーションノートでは、キャパシタとインダクターの基本的な測定を正確かつ確実に行う方法について説明します。
2月 22, 2024 | AN 番号 1GP142
高度なFFT機能に加えて優れた感度とダイナミックレンジを兼ね備えたMXOオシロスコープは、電磁波障害(EMI)のデバッグに最適です。RFの時間相関解析により、電気回路や基板から発生するEMIを迅速かつ正確に検出して解析します。MXOオシロスコープの高速性能により、デバッグ技能の向上を図ることができます。
2月 07, 2024
MIPI D-PHY is a low-power, cost-effective physical layer interface, essential in mobile devices and advanced technology systems. It's a high-speed, source-synchronous interface used in smartphone cameras, smartwatch displays, drones, in-car entertainment, automobile cameras, and radar sensors. This application note explores MIPI D-PHY's features, functionality, and testing practices for device compliance, addressing common issues. It highlights Rohde & Schwarz's equipment for ensuring compatibility and solving issues with MIPI D-PHY, aligned with MIPI D-PHY specification version 2.5.Developed by the MIPI Alliance, D-PHY connects cameras and displays to a host processor via CSI-2 or DSI protocols. It features a master-slave, asymmetrical design for reduced link complexity. Key aspects include a unidirectional clock, optional data signal directions, different data rates for half-duplex operation, point-to-point communication, and high-speed (HS) and low-power (LP) modes for data transfer and battery preservation. In HS mode, D-PHY uses differential signaling with specific impedance, while in LP mode, it operates in a single-ended manner with high impedance termination.The application note from Rohde & Schwarz provides insights into characterizing and debugging MIPI D-PHY, offering conformance verification with MIPI Alliance standards and protocol decoding options.
Jan 31, 2024 | AN 番号 1SL410
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB Type-C to legacy adapter assemblies supporting USB3.1 Gen1, and USB2.0. Based on 5 Gbps signaling per lane with vector network analyzers from Rohde & Schwarz.
Jan 18, 2024 | AN 番号 1SL407
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB Type-C to legacy cable assemblies supporting USB3.1 Gen2, USB3.1 Gen1, and USB2.0. Based on 5 Gbps signaling per lane with vector network analyzers from Rohde & Schwarz.
Jan 18, 2024 | AN 番号 1SL406
フルブリッジトポロジーを含むパワーコンバーターは、コンパクトで効率が高くコストの影響を受けやすい電気通信やサーバーで頻繁に使用されるため、複雑になります。同期整流器スイッチを含むすべての主要なプライマリスイッチのスイッチングパターンは、最初のプロトタイプを構築する前に検証する必要があります。このような複雑な検証では、致命的なスイッチングパターンを防止するためにスイッチングパターンを適切に測定することが求められます。コンバーターのスイッチングプロセスにおける想定外のイベントを特定する際には、専門知識と適切な測定ツールが不可欠です。
1月 17, 2024
R&S®RTO6 オシロスコープには、カスタムおよび既製品のシリアルバスをデバッグするために必要な機能や高度なツールが備わっており、航空電子工学および航空宇宙産業向けに最適です。
12月 20, 2023
Rohde & Schwarz offers a powerful tool for remote control of their oscilloscopes - the RsInstrument Python module. This module enables users to control and automate their Rohde & Schwarz test & measurement instruments, including oscilloscopes, through Python scripts or interactive console communication.
Dec 14, 2023
6G通信/センシングなどの最新のテクノロジーやアプリケーションでは、周波数領域がDバンドやさらにその先のサブTHz周波数にまで広がります。最新の半導体テクノロジーや半導体プロセスは、こうしたことを考慮して商用化する必要があります。
12月 12, 2023
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB Type-C to Type-C cable assemblies supporting USB4 Gen3, USB4 Gen2, USB 3.2 Gen2, USB3.2 Gen1, and USB2.0.
Nov 30, 2023 | AN 番号 1SL405
This application note describes Methods of Implementation (MOI) for precise, fast, and error-free compliance testing of USB 3.2 Legacy Cable Testing for USB Type A, Type B, and Micro family connector types. Based on 5 Gbps and 10 Gbps signaling per lane with vector network analyzers from Rohde & Schwarz.
Nov 09, 2023 | AN 番号 1SL408