M50 雷达、导航、遥控、遥测、天线综合 标准查询与下载

ITU-T K.51-2000 电信设备的安全标准 系列K:抗干扰防护(研究组5)

This Recommendation provides guidance on safety criteria for telecommunication network infrastructure equipment.

Safe Criteria for Telecommunications Equipment Study Group 5

ITU-T K.50-2000 由网络供电的通信系统的工作电压和电流的安全限值 系列K:抗干扰防护(研究组5)

Telecommunication networks use repeaters, regenerators, or multiplexers that sometimes are powered over the paired-conductor cables of the network.

Safe Limits of Operating Voltages and Currents for Telecommunication Systems Powered over the Network Series K: Protection Against Interference Study Group 5

ITU-T K.53-2000 靠近长途通信线路的交流电和铁路设施的感应电压许可值 系列K:抗干扰防护(研究组5)

This Recommendation sets permissible voltages in telecommunication lines caused by the electromagnetic influence from nearby a.c. power and railway plants during normal operation and fault condition. They are related to the worst interference situation.

Values of Induced Voltages on Telecommunication Installations to Establish Telecom and A.C. Power and Railway Operators Responsibilites Series K: Protection Against Interference Study Group 5

ITU-R M.1313-1-2000 海上无线导航雷达的技术特征

In global terms a clear distinction can be made between radars that conform to the requirements of the IMO (including those used on fishing vessels), those that are used for inland navigation (rivers) and those fitted on a voluntary basis in pleasure craf

Technical Characteristics of Maritime Radionavigation Radars

ITU-R M.1466-2000 工作在31.8-33.4GHz频段的用于无线电导航的雷达的保护标准和特性

The radionavigation service operates worldwide on a primary basis in the frequency band 31.8-33.4 GHz. This Annex presents the technical and operational characteristics of representative radars operating in the radionavigation service in this frequency b

Characteristics of and Protection Criteria for Radars Operating in the Radionavigation Service in the Frequency Band 31.8-33.4 GHz

ITU-R SF.1482-2000 10.7-12.75GHz频段FSS的NON-GSO卫星在地球表面产生的最大允许值

that WRC-97 allocated the bands 11.7-12.5 GHz (in Region 1), 12.2-12.7 GHz (in Region 2), and 11.7-12.2 GHz (in Region 3) to the FSS (space-to-Earth) on a primary basis, limited to non-GSO satellite systems

Maximum Allowable Values of pfd Produced at the Earth's Surface by Non-GSO Satellites in the FSS Operating in the 10.7-12.75 GHz Band

ITU-R SF.1483-2000 17.7-19.3GHz频段FSS的NON-GSO卫星在地球表面产生的最大允许值

The limits specified in this Recommendation are based on analyses of candidate pfd limits that would result in interference below permissible levels and enable satisfactory operation of satellite systems.

Maximum Allowable Values of pfd Produced at the Earth's Surface by Non-GSO Satellites in the FSS Operating in the 17.7-19.3 GHz Band

ITU-R M.1462 SPANISH-2000 在420 MHz-450 MHz频段的无线电探测业务的雷达的保护准则和特性

High power airborne, shipborne and ground radars operate in the frequency range 420-450 MHz. Their operational and technical characteristics are described in the following paragraphs.

Characteristics of and Protection Criteria for Radars Operating in the Radiolocation Service in the Frequency Range 420-450 MHz

ITU-R M.1462 FRENCH-2000 在420 MHz-450 MHz频段的无线电探测业务的雷达的保护准则和特性

High power airborne, shipborne and ground radars operate in the frequency range 420-450 MHz. Their operational and technical characteristics are described in the following paragraphs.

CHARACTERISTICS OF AND PROTECTION CRITERIA FOR RADARS OPERATING IN THE RADIOLOCATION SERVICE IN THE FREQUENCY RANGE 420-450 MHz

ITU-R SA.1449-2000 在18.6-18.8GHz频段FSS(地对空)与地球探查卫星(无源)和空间探测业务(无源)的共享的可行性

This Recommendation provides the operational and technical characteristics of representative MetAids systems operating in the optical frequency range 272-750 THz.

Feasibility of Sharing between the FSS (Space-To-Earth) and the Earth Exploration-Satellite (Passive) and Space Research (Passive) Services in the Band 18.6-18.8 GHz

ITU-R QUESTION 226/5-2000 无线电业务中雷达操作的特点和保护标准

The ITU Radiocommunication Assembly considering a)that antenna, signal propagation, target detection, and large necessary bandwidth characteristics of radar to achieve their functions are optimum in certain frequency bands;b)that the technical characteristics of radars operating in the radiodetermination service are determined by the mission of the system and vary widely even within a band;c)that the radionavigation service is a safety service as specified by No. 4.10 of the Radio Regulations (RR) and harmful interference to it cannot be accepted.

Characteristics of and protection criteria for radars operating in the radiodetermination service

ITU-T K.47-2000 使用金属导体的电信线路的抗雷电直击放电的保护 系列K:抗干扰防护(研究组5)

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Protection of Telecommunication Lines Using Metallic Conductors Against Direct Lightning Discharges Series K: Protection Against Interference Study Group 5

ITU-T K.37-1999 电信装置和系统的低频和高频EMC缓解技术- 基本EMC 建议-系列K:抗干扰防护(研究组5)20

This Recommendation defines mitigation techniques which the telecommunication operators may use to avoid disturbances, interference and damages caused by power and electrified railway plants,radio transmitters, both intentional and nintentional, ande lect

Low and High Frequency EMC Mitigation Techniques for Telecommunication Installations and Systems - Basic EMC Recommendation - Series K: Protection Against Interference Study Group 5; 20 pp

ITU-R SA.1166-2-1999 有源航天传感器的性能和干扰标准

that some administrations will be unable to operate MetAids systems in the band 1 668.4-1 675 MHz as a result of frequency sharing constraints with respect to new aeronautical mobile (ground-to-air) systems being deployed in the 1 670-1 675 MHz band and

Performance and Interference Criteria for Active Spaceborne Sensors

ITU-R SF.1395-1999 固定卫星业务和固定业务之间频段共享研究中由于大气引起的最小传播衰减

that slant path attenuation between a terrestrial station and a space station (geostationary or non-geostationary) resulting from absorption due to atmospheric gases including water vapour is an important factor in frequency sharing studies between the fi

MINIMUM PROPAGATION ATTENUATION DUE TO ATMOSPHERIC GASES FOR USE IN FREQUENCY SHARING STUDIES BETWEEN THE FIXED-SATELLITE SERVICE AND THE FIXED SERVICE

ITU-R F.1333-1-1999 考虑大气折射在内的固定站与空间站之间实际仰角的估算

that in some frequency sharing studies between the fixed service and space radiocommunication services, including fixed-satellite, broadcasting-satellite and space science services, it is necessary to estimate various factors related to propagation such

Estimation of the Actual Elevation Angle from a Station in the Fixed Service Towards a Space Station Taking into Account Atmospheric Refraction

ITU-R SA.1416-1999 运行于118和183GHz附近空间无源传感器和卫星内业务之间的共享

This Recommendation provides guidance for the apportionment of interference from emissions and radiations from other radio sources that can contribute to the maximum allowable degradation of radiocommunication links of the space research and space opera

Sharing between Spaceborne Passive Sensors and the Inter-Satellite Service Operating Near 118 and 183 GHz

ITU-T K.41-1998 电信中心内部接口对浪涌电压的耐受性要求-系列K:抗干扰防护(研究组5)12页

External telecom lines entering a telecom building may be subjected to overvoltages due to induction by lightning currents. However, not only external cables are affected by lighming but also internal lines interconnecting telecom equipment installed insi

Resistibility of Internal Interfaces of Telecommunication Centres to Surge Overvoltages - Series K: Protection Against Interference Study Group 5; 12 pp

ITU-T K.42-1998 制定电信设备的发射和抗扰性要求标准.总则-系列K:抗干扰防护(研究组5)12页

This Recommendation applies to EMC requirements for telecommunications equipment as they are recommended to be drafted in ITU-T Study Group 5 in particular and in other Study Groups as appropriate

Preparation of emission and immunity requirements for telecommunication equipment General principles Study Group 5; 12 pp

SJ 20696-1998 雷达标定仪通用规范

本规范规定了雷达标定仪的要求、质量保证规定及交货准备等。 本规范适用于地面雷达标定仪。是制定产品规范的基本依据。

General specification for radar test rangers