M30 通信设备综合 标准查询与下载

ANSI/ATIS 0600010-2014 温度、湿度和高度标准

Temperature, Humidity, & Altitude Standards

CFR 47-17.14-2014 电信. 第17部分:天线结构的建设标记和采光. 第B子部分:联邦航空管理局通知标准. 第17.14节:需要通知联邦航空局的无线设备.

A notification to the Federal Aviation Administration is not required for any of the following construction or alteration

Telecommunication. Part17:Construction, marking, and lighting of antenna structures. Subpart B:Federal Aviation Administration Notification Criteria. Section17.14:Certain antenna structures exempt from notification to the FAA.

CFR 47-17.7-2014 电信. 第17部分:天线结构的建设标记和采光. 第B子部分:联邦航空管理局通知标准. 第17.7节:需要通知联邦航空局的无线设备.

A notification to the Federal Aviation Administration is required, except as set forth in § 17.14, for any of the fol- lowing construction or alteration:

Telecommunication. Part17:Construction, marking, and lighting of antenna structures. Subpart B:Federal Aviation Administration Notification Criteria. Section17.7:Antenna structures requiring notification to the FAA.

CFR 47-17.48-2014 电信. 第17部分:天线结构的建设标记和采光. 第C子部分:障碍物标志和天线结构照明的规格. 第17.48节:关于灯光不能正常使用及熄灯的通知.

The owner of any antenna structure which is registered with the Commission and has been assigned lighting specifications referenced in this part:

Telecommunication. Part17:Construction, marking, and lighting of antenna structures. Subpart C:Specifications for Obstruction Marking and Lighting of Antenna Structures . Section17.48:Notification of extinguishment or improper functioning of lights.

YD/T 2683-2013 LTE/TD-SCDMA/WCDMA/GSM（GPRS）多模单待终端设备技术要求

LTE/TD-SCDMA/WCDMA/GSM (GPRS) multi-mode single-standby terminal equipment technical requirements

YD/T 2684-2013 LTE/TD-SCDMA/WCDMA/GSM（GPRS）多模单待终端设备测试方法

LTE/TD-SCDMA/WCDMA/GSM (GPRS) multi-mode single-standby terminal equipment test method

YD/T 2685-2013 LTE/WCDMA/GSM（GPRS）多模单待终端设备技术要求

LTE/WCDMA/GSM (GPRS) multi-mode single-standby terminal equipment technical requirements

YD/T 2686-2013 LTE/WCDMA/GSM（GPRS）多模单待终端设备测试方法

LTE/WCDMA/GSM (GPRS) multi-mode single-standby terminal equipment test method

YD/T 2688-2013 LTE/CDMA/WCDMA/GSM（GPRS）多模终端设备（单卡槽）技术要求及测试方法

LTE/CDMA/WCDMA/GSM (GPRS) multi-mode terminal equipment (single card slot) technical requirements and test methods

BS EN 50561-1:2013 低压装置用电力有线通讯设备.无线电干扰特性.限值和测量方法.家庭使用装置

Power line communication apparatus used in low-voltage installations. Radio disturbance characteristics. Limits and methods of measurement. Apparatus for in-home use

YD/T 1099-2013 以太网交换机技术要求

Ethernet Switch Technical Requirements

YD/T 1265-2013 网络接入服务器（NAS）测试方法 宽带网络接入服务器

本标准规定了宽带网络接入服务器的通信接口测试、功能测试、性能测试、网络管理测试、可靠性测试、常规测试以及协议测试。本标准适用于宽带网络接入服务器。

Testing specification for broadband network access server

ITU-R P.530-15-2013 地面视距系统设计要求的传播数据和预测方法

This Recommendation provides prediction methods for the propagation effects that should be taken into account in the design of digital fixed line-of-sight links, both in clear-air and rainfall conditions. It also provides link design guidance in clear step-by-step procedures including the use of mitigation techniques to minimize propagation impairments. The final outage predicted is the base for other Recommendations addressing error performance and availability.

Propagation data and prediction methods required for the design of terrestrial line-of-sight systems

ITU-R P.618-11-2013 地对空远程通信系统设计要求的传播数据和预测方法

This Recommendation predicts the various propagation parameters needed in planning Earth-space systems operating in either the Earth-to-space or space-to-Earth direction.

Propagation data and prediction methods required for the design of Earth-space telecommunication systems

ITU-R P.617-3-2013 超视距无线电中继系统设计要求的传播预测技术和数据

This Annex relates to the design of trans-horizon radio-relay systems. One purpose is to present in concise form simple methods for predicting the annual and worst-month distributions of transmission loss due to tropospheric scatter, together with information on their ranges of validity. Another purpose of this Annex is to present other information and techniques that can be recommended in the planning of trans-horizon systems.

Propagation prediction techniques and data required for the design of trans-horizon radio-relay systems

ITU-R P.531-12-2013 卫星业务和卫星系统设计要求的电离层传播数据和预测方法

Recommendation ITU-R P.531 describes a method for evaluating of the ionospheric propagation effects on Earth-space paths at frequencies from 0.1 to 12 GHz. The following effects may take place on an Earth-space path when the signal is passing through the ionosphere: rotation of the polarization (Faraday rotation) due to the interaction of the electromagnetic wave with the ionized medium in the Earth’s magnetic field along the path; group delay and phase advance of the signal due to the total electron content (TEC) accumulated along the path; rapid variation of amplitude and phase (scintillations) of the signal due to small-scale irregular structures in the ionosphere; a change in the apparent direction of arrival due to refraction; Doppler effects due to non-linear polarization rotations and time delays.

Ionospheric propagation data and prediction methods required for the design of satellite services and systems

ITU-R P.1321-4-2013 在低频与中频中使用数字调制技术的传播因数影响系统

This Recommendation provides information on the characteristics of LF and MF ground-wave and sky-wave propagation which may affect the use of digital modulation methods in those bands.

Propagation factors affecting systems using digital modulation techniques at LF and MF

ITU-R P.1816-2-2013 使用超高频(VHF)和超音频(SHF)频段的宽频带陆地移动业务的时间和空间分布预测

The purpose of this Recommendation is to provide guidance on the prediction of the time and the spatial profile for broadband land mobile services using the frequency range 0.7 GHz to 9 GHz for distances from 0.5 km to 3 km for non-line of sight (NLoS) environments and from 0.05 km to 3 km for line of sight (LoS) environments in both urban and suburban environments.

The prediction of the time and the spatial profile for broadband land mobile services using UHF and SHF bands

ITU-R P.1546-5-2013 30 MHz-3 000 MHz频率范围内地面业务的点对区域预测的方法

This Recommendation describes a method for point-to-area radio propagation predictions for terrestrial services in the frequency range 30 MHz to 3 000 MHz. It is intended for use on tropospheric radio circuits over land paths, sea paths and/or mixed land-sea paths up to 1 000 km length for effective transmitting antenna heights less than 3 000 m. The method is based on interpolation/extrapolation from empirically derived field-strength curves as functions of distance, antenna height, frequency and percentage time. The calculation procedure also includes corrections to the results obtained from this interpolation/extrapolation to account for terrain clearance and terminal clutter obstructions.

Method for point-to-area predictions for terrestrial services in the frequency range 30 MHz to 3 000 MHz

ITU-R P.1407-5-2013 多径传播及其特点的参数化

Recommendation ITU-R P.1407 describes the nature of multipath propagation and defines the appropriate parameters for the statistical description of multipath effects, and provides examples of correlation effects among multiple propagation paths and their computation.

Multipath propagation and parameterization of its characteristics