8 Resultados
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
O aplicativo móvel R&S®MobileView permite que os usuários operem os instrumentos da Rohde & Schwarz remotamente e elimina a necessidade de interações físicas com os instrumentos.
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, busca de interferências, modo de intervalo zero, sinal TDD 5G NR Soluções portáteis da Rohde & Schwarz oferecem suporte a trigger de abertura, permitindo aos usuários separar sinais de ligações ascendentes e descendentes no domínio do tempo. 5G NR – busca de interferências na ligação ascendente de redes TDD Spectrum Rider, FPH, FSH, ZPH, Cable Rider
abr. 09, 2019
Versátil ferramenta de software para os instrumentos da Rohde & SchwarzO RSCommander é uma ferramenta de software versátil para uma ampla gama de espectro, analisadores de rede, geradores de sinal e osciloscópios da Rohde & Schwarz. Ele permite a descoberta automática de instrumentos, capturas de tela, leitura de traços, transferência de arquivo e criação de script simples.
dez. 24, 2017 | AN-Nº. 1MA074
As medições de reflexão são uma maneira comum de avaliar o desempenho de sistemas de antenas. Quando uma quantidade mínima do sinal transmitido é refletida, isso indica que a energia de transmissão pode alcançar a cobertura pretendida. Uma alta reflexão não desejada faz com que o sistema seja ineficiente e pode danificar os componentes. As medições de reflexão podem ser expressas em termos de perda por retorno, VSWR e coeficiente de reflexão.
nov. 13, 2017
