IEC 60244-14-1997 无线电发射机的测量方法第14部分:由两个或多个使用相同或相近天线的发射机造成的外部互调产物
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【英文标准名称】:Methodsofmeasurementforradiotransmitters-Part14:Externalintermodulationproductscausedbytwoormoretransmittersusingthesameoradjacentantennas
【原文标准名称】:无线电发射机的测量方法第14部分:由两个或多个使用相同或相近天线的发射机造成的外部互调产物
【标准号】:IEC60244-14-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC103
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电发射机;互相调制;无线电天线;无线电设备;测量技术
【英文主题词】:Antennas;Definitions;Interference(wavephysics);Intermodulation;Measuringtechniques;Radioantennae;Radioantennas;Radioequipment;Radiotransmitters;Transmitters
【摘要】:ThispartofIEC60244detailsameasurementmethodforexternalintermodulationproducts(intermodulationcomponents)causedbytwoormoretransmittersusingthesameoradjacentantennas.Itdescribesrecommendedmethodsofassessingtheperformanceofradiobroadcasttransmitters.Thepurposeofthemeasurementsdescribedinclauses4and5ofthispartistoprove,asfaraspossible,thattherequirementsoftheRadioRegulationswithrespecttomaximumpermissibleradiatedlevelsofintermodulationproductsfromLF,MF,HF,VHF,UHFandSHFtransmitterswillbefulfilledwhentwoormoretransmittersusethesameornearbyantennas.ThemethodofmeasurementgiveninthispartisnotappropriatefortypetestsandITSHOULDBENOTEDTHATTHEMEASUREMENTSARETOBECARRIEDOUTONLYWHENMUTUALLYAGREEDbetweenthepurchaserandsupplieroftheequipment.
【中国标准分类号】:M36
【国际标准分类号】:33_060_20
【页数】:49P.;A4
【正文语种】:英语
Product Code:SAE AMS5655
Title:Steel, Corrosion and Heat Resistant, Bars, Wire, and Forgings, 12.5Cr - 0.75Ni - 1.0Mo - 1.0W - 0.24V (0.20-0.25C), Hardened and Tempered
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat resistant steel in the form of bars, wire, forgings, and forging stock.【英文标准名称】:StandardforSafetyforElectricPlumbingAccessories
【原文标准名称】:电线管道附件安全标准
【标准号】:ANSI/UL1951-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bathrooms;Commercial;Connections;Control;Corrosionprotection;Definitions;Domestic;Electricalengineering;Electricalinstallations;Hazards;Healthprotection;Householduse;Irrigation;Kitchens;Manufacturing;Marking;Materials;Mountingmaterials;Production;Safety;Specification(approval);Sprinkling;Surveillance(approval);Testing;Trade;WCcompartments
【摘要】:1.Updateofrequirementstoallowfield-wiringcompartmentstobeshippedwithanendproduct2.AdditionAndRevisionOfRequirementsToDeleteAppendixAAndSpecifyComponentRequirementsInTheBodyOfTheStandard3.ProposedEditorialChangesToUpdateStandardizedWordingAndDeleteDatesAssociatedWithReferenceStandards
【中国标准分类号】:K15
【国际标准分类号】:91_180
【页数】:
【正文语种】:英语