BS ISO/IEC BRITISH STANDARD TR 18047-4: 2004 Information technology Radio frequency identification device conformance test methods - Part 4: Test methods for air interface communications at 2,45 GHz ICS 35.040 BSi NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTL BSISO/IECTR18047-4:2004 National foreword This British Standard reproduces verbatim IS0/IEC TR 18047-4:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/34, Automatic identification and data capture techniques, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitorrelated international and European developmentsand promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may befound in the BSI Catalogue under the section entitled "International Standards Correspondence Index", or by using the“Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO/IEC TR title page, pages i to v, a blank page, pages 1 to 1l and a back cover. The BSI copyright notice displayed in this document indicates when the documentwaslastissued. Amendmentsissued sincepublication This British Standard was published under the authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 12January2005 @ BSI 12 January 2005 ISBN0580452352 BSISO/IECTR 18047-4:2004 TECHNICAL ISO/IEC REPORT TR 18047-4 First edition 2004-11-15 Information technology Radio frequencyidentificationdevice conformancetestmethods- Part 4: Test methods for air interface communications at 2,45 GHz Technologiesde Iinformation-Methodesd'essai de conformitedu dispositifd'identificationparradiofrequence- Partie4:Methodesd'essaipourlescommunicationsd'uneinterface d'air a 2,45 GHz Reference number ISO/EC TR 18047-4:2004(E) IEC ISO BSISO0/IECTR 18047-4:2004 BSISO/IEC TR 18047-4:2004 Contents 1 Scope.. 2 Normativereferences. 3 Termsanddefinitions 4 Symbols andabbreviations.. 5 ConformancetestsforISO/IEC18000-4—2,45GHz.. 5.1 Default items applicable to thetest methods ....... 5.1.1 Test environment.... 5.1.2 Pre-conditioning 5.1.3 Default tolerance 5.1.4 Totalmeasurementuncertainty. 5.2 ConformancetestsforISO/IEC18000-4Mode2 5.2.1 Test set-up and measurement equipmentfor Mode2 5.2.1.1 Test set-up for interrogator testing.... 5.2.1.2 Test set-up fortag testing... 5.2.1.3 Test equipment .... 5.2.2 Functional test-interrogator 5.2.2.1 Modulation.. 5.2.2.2 Operatingfrequencyaccuracy 5.2.3 Functional test -tag.. 5.2.3.1 Modulation.. 5.2.3.2 Coding.. 5.2.3.3 Sub-carrierfrequency.. 10 ii BS1S0/1ECTR18047-4:2004 Foreword ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity.IsO and IEC technology,lSOandTEChaveestablishedajointtechnicalcommittee,lSO/lECJTC1. International Standards aredrafted inaccordancewiththerulesgiven in theISO/ECDirectives,Part2. anInternational Standard requiresapproval byat least75%of thenationalbodies castingavote. In exceptional circumstances,the jointtechnical committee maypropose thepublication of a Technical Report of one of the following types: despite repeated efforts; type 2, when the subject is still undertechnical development or where for any other reason there is the f