M50 雷达、导航、遥控、遥测、天线综合 标准查询与下载

SJ 20502-1995 地面制导雷达通用规范

General specification for ground guidance radars

SJ 20498-1995 雷达综合测试仪通用规范

General specification for radar test set

ITU-R SF.358-5-1995 与视线无线电中继系统共享1GHz以上频段的固定卫星业务的卫星在地球表面

Administrations should make details available of the spectrum shape and the value of the coefficients used in equations (2) and (3), for detailed coordination purposes.

Maximum Permissible Values of Power Flux-Density at the Surface of the Earth Produced by Satellites in the Fixed-Satellite Service Using the Same Frequency Bands Above 1 GHz as Line-of-Sight Radio-Relay Systems

ITU-R SF.1193-1995 固定卫星业务地球站和无线中继系统之间的载波干扰比计算

that during the planning stage of a satellite network or a radio-relay system it may be useful to calculate carrier-to-interference (C/o ratios between carriers of the interfering and interfered-with networks for the purpose of determining levels of inter

Carrier-to-Interference Calculations between Earth Stations in the Fixed-Satellite Service and Radio-Relay Systems

ITU-R M.1179-1995 在无线电测定业务中运行于雷达站附近并与之形成谐波关系的系统中确定干扰耦合机制和缓和选择的程序

This Recommendation provides administrations with measurement procedures to identify the interference coupling mechanism(s), receiver front-end overload or radar spurious emissions, and methods to mitigate the interference from radar stations in the radi

Procedures for Determining the Interference Coupling Mechanisms and Mitigation Options for Systems Operating in Bands Adjacent to and in Harmonic Relationship with Radar Stations in the Radiodetermination Service

ITU-R M.1178-1995 海上无线导航频段的使用(区域1内的283.5-315kHz及区域2和3内的285-325kHz频段)

The ITU-R has carried out initiai studies of the technical factors, bandwidth, modulation method, protection ratios and sharing criteria of maritime radionavigation systems, including the transmission of differential corrections for Global Navigation Sate

Use of the Maritime Radionavigation Band (283.5-315 kHz in Region 1 and 285-325 kHz in Regions 2 and 3)

ITU-T K.22-1995 连接至ISDN T/S总线的设备的耐过电压能力-抗干扰防护(研究组5)8页

This Recommendation relates to any terminal equipment which is intended to be connected to the 4-wire T/S bus of an ISDN installation wholly contained within a building. If cables leave the building, these lines may need to be protected (e.g. additional

Overvoltage Resistibility of Equipment Connected to an ISDN T/S Bus - Protection Against Interference (Study Group 5) 8 pp

SJ 20424-1994 潜艇雷达试航方法

Methods for sea trials of submarine radar

SJ 20423-1994 潜艇雷达通用规范

General specification of submarine radar

SJ 20425-1994 自行高炮火控雷达系统通用规范

General specification for fire control radar system of self-propelled antiaircraft gun

SJ 20428-1994 精密进场雷达系统战术性能试验方法

Tactical performance test methods of precision approach radar system

SJ 20421-1994 地面测高雷达战术性能试验方法

Tectical performance test methods for ground height-finding radar

SJ 20420-1994 地面测高雷达通用规范

General specification for ground height finding radar

SJ 20422-1994 精密进场雷达系统通用规范

General specification of precision approach radar system

SJ 20364-1993 地面活动目标侦察雷达测试方法

Methods of measurment for ground moving target reconnaissance radar

SJ 20363-1993 地面活动目标侦察雷达通用规范

General specification for ground moving-target reconnaissance radar

ITU-R SF.1006-1993 固定卫星业务站和固定业务站之间潜在干扰的确定

The number of possible interferers, n, must be apportioned between those likely to be nearby, ni and those likely to be beyond the horizon, n2. For example, for terrestrial systems operating in the band 1-10 GHz, n is 8.

Determination of the Interference Potential between Earth Stations of the Fixed-Satellite Service and Stations in the Fixed Service

ITU-T K.10-1993 (撤回)电信设备对地不平衡-抗干扰防护(研究组5)17页

As a consequence of a reform process within the International Telecommunication Union (ITU), the CCITT ceased to exist as of 28 February 1993. In its place, the ITU Telecommunication Standardization Sector (ITU-T) was created as of 1 March 1993. Similarl

(WITHDRAWN) Unbalance About Earth of Telecommunication Installations - Protection Against Interference (Study Group V) 17 pp

ITU-T K.28-1993 电信设备防护用半导体避雷器组件的特性-抗干扰防护(研究组5)14页

The purpose of this Recommendation is to provide technical guidelines for purchasers and manufacturers of semi-conductor arrester assemblies (SAA) to ensure their satisfactory operation in the applications for which they are intended. Figure I. 1 shows ex

Characteristics of Semi-Conductor Arrester Assemblies for the Protection of Telecommunications Installations - Protection Against Interference (Study Group V) 14 pp

ITU-T K.31-1993 用户大楼内电信装置的连接结构和接地-抗干扰防护(研究组5)10页

is a guide to bonding and earthing of telecommunication equipment in residential and commercial subscribers’ premises

Bonding Configurations and Earthing of Telecommunication Installations Inside a Subscriber's Building - Protection Against Interference (Study Group V) 10 pp