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【英文标准名称】:TotalAccessCommunicationSystem(T.A.C.S)-Specificationforperformancerequirementsformobilestations
【原文标准名称】:全通路通信系统(TACS).第1部分:移动电台性能要求规范
【标准号】:BS6940-1-1990
【标准状态】:现行
【国别】:英国
【发布日期】:1990-05-31
【实施或试行日期】:1990-05-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:移动无线电通信系统;性能;电话系统;作标记;信号失真;使用说明;电路;试验设备;频带宽度;等级(质量);音频;公差(测量);电功率测量;声学测量;无线电设备;电话设备;无线电通信;校正;通信设备;音量;互相调制;乱真信号;频率响应;接收机;移动通信系统;电波测量;误差;送话器;受话器;无线电接收机;试验条件;频率;灵敏度;声测量;频率测量;电话;电话机;电信系统;性能试验;无线电发射机;调制;无线电话
【英文主题词】:Acousticmeasurement;Audiofrequencies;Bandwidths;Calibration;Circuits;Communicationequipment;Electricalwavemeasurement;Errors;Frequencies;Frequencymeasurement;Frequencyresponse;Grades(quality);Instructionsforuse;Intermodulation;Marking;Mobilecommunicationsystems;Mobileradiosystems;Modulation;Noise(spurioussignals);Performance;Performancetesting;Powermeasurement(electric);Radioequipment;Radioreceivers;Radiotransmitters;Radiocommunication;Radiotelephony;Receivers;Sensitivity;Signaldistortion;Telecommunicationsystems;Telephoneequipment;Telephonereceivers;Telephonesystems;Telephonetransmitters;Telephones;Telephony;Testequipment;Testingconditions;Tolerances(measurement);Volume(sound)
【摘要】:ThisPartofBS6940specifiestheperformancerequirementsforMobileStationsforuseintheTotalAccessCommunicationsSystem(T.A.C.S.)operatingovertheradiofreq2uencybands890MHz(mobilestationtransmitband)and935MHzto950/960MHz(mobilestationreceiveband)withanominalseparationbetweenadjacentcarrierfrequenciesof25kHz.Italsogivesrequirementsbothforinformationtobeprovidedwiththesystemandlabeling.
【中国标准分类号】:M37
【国际标准分类号】:33_060_99
【页数】:52P;A4
【正文语种】:英语


【英文标准名称】:Specificationforbearings-airframerollingsinglerowselfaligningrollerbearingsincorrosionresistingsteeldiameterseries3and4.Dimensionsandloads
【原文标准名称】:轴承规范.耐蚀钢3号和4号直径系列的机体单列自调心滚子轴承.尺寸和负荷
【标准号】:BSEN2020-1989
【标准状态】:现行
【国别】:英国
【发布日期】:1989-09-29
【实施或试行日期】:1989-09-29
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:间隙;自位轴承;粗糙度(表面);滚动轴承;单列轴承;工作环境;滚柱轴承;航空运输工程;飞行器部件;轴承;耐腐蚀钢;飞机机架轴承;名称与符号;质量;作标记;静荷载;润滑;尺寸;钢;负荷
【英文主题词】:Acceptancespecification;Aerospacetransport;Airtransport;Airframebearings;Airframes;Barrel-rollerbearings;Bearings;Corrosion-resistant;Corrosion-resistantsteels;Deliveryconditions;Designations;Diameter;Dimensions;Finishes;Loading;Lubrication;Marking;Materials;Rollingbearings;Singlerow;Single-rowbearings;Spacetransport;Specification(approval);Steels
【摘要】:Characteristicsofballbearingsdesignedtowithstandonlyslowrotationsandoscillationsunderload.Forusebetweenfixedandmovingpartsoftheaircraftstructureandtheircontrolmechanisms.
【中国标准分类号】:V22
【国际标准分类号】:49_035
【页数】:10P.;A4
【正文语种】:英语