共找到 2669 条与 无线电通信设备 相关的标准,共 178 页
This Recommendation provides guidance on outdoor short-range propagation over the frequency range300 MHz to 100 GHz. Information is given on path loss models for line-of-sight (LoS) and non-line-of-sight(NLoS) environments, building entry loss, multipath models for both environments of street canyon and overroof-tops, number of signal components, polarization characteristics and fading characteristics.
Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz
Short Range Devices (SRD) using Ultra Wide Band (UWB); Technical Report Part 1: UWB signal characteristics and overview CEPT/ECC and EC regulation (V1.1.1)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Wireless microphones in the 25 MHz to 3 GHz frequency range; Part 2: Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive (V1.4.1)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Wireless microphones in the 25 MHz to 3 GHz frequency range; Part 1: Technical characteristics and methods of measurement (V1.5.1)
Air interface technical specifications for dedicated digital intercom equipment based on FDMA
Methods for measuring passive intermodulation levels of wireless communications radio frequency and microwave devices Part 2: Coaxial cable assemblies
Core network equipment technical requirements to support voice call continuity from LTE to TD-SCDMA/WCDMA/GSM
Technical requirements for core network equipment supporting circuit domain service fallback technology from LTE to TD-SCDMA/WCDMA/GSM
Security technical requirements for embedded universal integrated circuit cards (eUICC) and their remote management (Phase 1)
2GHz TD-SCDMA digital cellular mobile communication network enhanced high-speed packet access (HSPA+) Iub interface technical requirements Part 9: Establishment and maintenance of maintenance channels to perform specific operations
Measurement methods for passive intermodulation levels of wireless communication RF and microwave devices Part 5: Filter devices
Methods for measuring passive intermodulation levels of radio frequency and microwave devices for wireless communications Part 6: Antennas
Methods for measuring passive intermodulation levels of wireless communications RF and microwave devices Part 3: Coaxial connectors
Multi-emitter terminal specific absorption rate (SAR) evaluation requirements
Methods for measuring passive intermodulation levels of radio frequency and microwave devices in wireless communications Part 4: Coaxial cables
Methods for measuring passive intermodulation levels of radio frequency and microwave devices for wireless communications Part 1: General requirements
Le présent document résume toutes les exigences dépendant du système utilisé pour les équipements point à point (PP) dans des applications déployées dans des bandes où s'applique, d'une manière générale, la coordination des fréquences.
Fixed radio systems - Characteristics and requirements for point-to-point equipment and antennas - Part 2-1 : system-dependent requirements for digital systems operating in frequency bands where frequency co-ordination is applied (V2.1.1)
VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment; Part 4: Point-to-point functions (V1.3.1)
VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment; Part 1: Physical layer (V1.3.1)
VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 1: EN for ground equipment (V1.4.1)
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