8 Ergebnisse
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.
09.01.2025 | AN-Nr. 8NT20
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.
05.12.2024 | AN-Nr. 8NT19
Die R&S®MobileView App ermöglicht es dem Benutzer, Rohde & Schwarz Geräte fernzusteuern – keine physische Interaktion mit dem Gerät ist notwendig.
04.09.2024
Crucial for proper operation of mobile networks - Part 2 of the series on Cable and Antenna verification
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 fundamental properties of antennas and the antenna cables.Measurement Techniques: Explore discontinuity or distance to fault measurements to identify reflections of forward RF energy due to impedance changes (connector, compression or kink of a cable, etc.).
18.06.2024 | AN-Nr. 8NT16
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.
23.02.2024 | AN-Nr. 8NT11
Spectrum Rider, FPH, FSH, ZPH, Cable Rider, ZVH, 5G, Ortung von Funkstörungen, Störsignalsuche, Zero-Span-Modus, 5G NR TDD Signal Handheld-Lösungen von Rohde & Schwarz unterstützen einen Gated Trigger, sodass Anwender Uplink- und Downlink-Signale im Zeitbereich trennen können. 5G NR – Ortung von Funkstörungen im Uplink von TDD-Netzen Spectrum Rider, FPH, FSH, ZPH, Cable Rider, ZVH, 5G, Ortung von Funkstörungen
09.04.2019
Vielseitiges Software-Tool für Rohde & Schwarz-GeräteRSCommander ist ein vielseitiges Software-Tool für viele Spektrum- und Netzwerkanalysatoren, Signalgeneratoren und Oszilloskope von Rohde & Schwarz. Es unterstützt die automatische Geräteerkennung und ermöglicht Screenshots, das Auslesen von Messkurven, die Dateiübertragung und die Programmierung einfacher Skripte.
24.12.2017 | AN-Nr. 1MA074
Reflexionsmessungen sind eine gängige Methode zur Beurteilung der Leistungsfähigkeit eines Antennensystems. Wenn nur ein minimaler Anteil des gesendeten Signals reflektiert wird, ist dies ein Zeichen dafür, dass die Funkleistung die gewünschte Abdeckung erreicht. Unerwünscht hohe Reflexionen resultieren in einem ineffizienten System und können Komponentenschäden zur Folge haben. Das Ergebnis einer Reflexionsmessung lässt sich durch die Reflexionsdämpfung, das Stehwellenverhältnis (VSWR) oder den Reflexionsfaktor ausdrücken.
13.11.2017
