8 Risultati
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.
Jan 09, 2025 | AN-No. 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.
Dec 05, 2024 | AN-No. 8NT19
L'applicazione R&S®MobileView consente agli utenti di utilizzare gli strumenti Rohde & Schwarz da remoto ed elimina la necessità di interagire fisicamente con essi.
set 04, 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.).
Jun 18, 2024 | AN-No. 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.
Feb 23, 2024 | AN-No. 8NT11
Spectrum Rider, FPH, FSH, ZPH, Cable Rider, ZVH, 5G, rilevamento delle interferenze, modalità zero span, segnale G NR TDD Le soluzioni portatili di Rohde & Schwarz supportano una modalità di trigger con gate temporale, che consente di separare, nel dominio del tempo, i segnali nelle direzioni uplink e downlink. 5G NR – rilevamento delle interferenze nel collegamento uplink delle reti TDD Spectrum Rider
apr 09, 2019
Un versatile tool software per gli strumenti Rohde & SchwarzRSCommander è un versatile tool software compatibile con un’ampia gamma di analizzatori di spettro e di reti, generatori di segnali e oscilloscopi di Rohde & Schwarz. Consente di scoprire e identificare automaticamente gli strumenti collegati al PC, catturare schermate, leggere tracce, trasferire file e creare semplici script.
dic 24, 2017 | AN-No. 1MA074
La misura delle riflessioni è un metodo molto diffuso per valutare le prestazioni di un sistema d'antenna. Quando la quantità del segnale trasmesso che viene riflessa è minima, significa che l'energia irradiata riesce a raggiungere la copertura prevista. Un'elevata riflessione indesiderata causa inefficienze del sistema e può danneggiarne i componenti. Le misure delle riflessioni possono essere espresse in termini di perdita di ritorno (return loss), rapporto di onde stazionarie (ROS o VSWR) e coefficiente di riflessione.
nov 13, 2017