1、NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60835-2-4Edition 1.11998-02Mthodes de mesure applicables au matrielutilis pour les systmes de transmissionnumrique en hyperfrquence Partie 2-4:Mesures applicables aux faisceauxhertziens terrestres Emetteur/rcepteur,modulateur/dmodulateurinclusMethods of
2、measurement for equipment used indigital microwave radio transmission systems Part 2-4:Measurements on terrestrial radio-relay systems Transmitter/receiver includingmodulator/demodulatorNumro de rfrenceReference numberCEI/IEC 60835-2-4:1993+A1:1997Edition 1:1993 consolide par lamendement 1:1997Editi
3、on 1:1993 consolidated with amendment 1:1997LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Numros des publicationsDepuis le 1er janvier 1997,les publications de la CEIsont numrotes partir de 60000.Publications consolidesLes versions c
4、onsolides de certaines publications dela CEI incorporant les amendements sont disponibles.Par exemple,les numros ddition 1.0,1.1 et 1.2indiquent respectivement la publication de base,lapublication de base incorporant lamendement 1,et lapublication de base incorporant les amendements 1et 2.Validit de
5、 la prsente publicationLe contenu technique des publications de la CEI estconstamment revu par la CEI afin quil reflte ltatactuel de la technique.Des renseignements relatifs la date de reconfirmationde la publication sont disponibles dans le Catalogue dela CEI.Les renseignements relatifs ces rvision
6、s,ltablis-sement des ditions rvises et aux amendementspeuvent tre obtenus auprs des Comits nationaux de laCEI et dans les documents ci-dessous:Bulletin de la CEIAnnuaire de la CEIAccs en ligne*Catalogue des publications de la CEIPubli annuellement et mis jour rgulirement(Accs en ligne)*Terminologie,
7、symboles graphiqueset littrauxEn ce qui concerne la terminologie gnrale,le lecteurse reportera la CEI 60050:Vocabulaire Electro-technique International(VEI).Pour les symboles graphiques,les symboles littraux etles signes dusage gnral approuvs par la CEI,lelecteur consultera la CEI 60027:Symboles lit
8、traux utiliser en lectrotechnique,la CEI 60417:Symbolesgraphiques utilisables sur le matriel.Index,relev etcompilation des feuilles individuelles,et la CEI 60617:Symboles graphiques pour schmas.Publications de la CEI tablies par le mme comit dtudesLattention du lecteur est attire sur les listes figu
9、rant la fin de cette publication,qui numrent lespublications de la CEI prpares par le comit dtudesqui a tabli la prsente publication.*Voir adresse site web sur la page de titre.NumberingAs from 1 January 1997 all IEC publications are issuedwith a designation in the 60000 series.Consolidated publicat
10、ionsConsolidated versions of some IEC publicationsincluding amendments are available.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,tothe base publication,the base publication incorporatingamendment 1 and the base publication incorporatingamendments 1 and 2.Validity of this publicati
11、onThe technical content of IEC publications is kept underconstant review by the IEC,thus ensuring that thecontent reflects current technology.Information relating to the date of the reconfirmation ofthe publication is available in the IEC catalogue.Information on the revision work,the issue of revis
12、ededitions and amendments may be obtained fromIEC National Committees and from the followingIEC sources:IEC BulletinIEC YearbookOn-line access*Catalogue of IEC publicationsPublished yearly with regular updates(On-line access)*Terminology,graphical and lettersymbolsFor general terminology,readers are
13、 referred toIEC 60050:International Electrotechnical Vocabulary(IEV).For graphical symbols,and letter symbols and signsapproved by the IEC for general use,readers arereferred to publications IEC 60027:Letter symbols tobe used in electrical technology,IEC 60417:Graphicalsymbols for use on equipment.I
14、ndex,survey andcompilation of the single sheets and IEC 60617:Graphical symbols for diagrams.IEC publications prepared by the same technical committeeThe attention of readers is drawn to the end pages ofthis publication which list the IEC publications issuedby the technical committee which has prepa
15、red thepresent publication.*See web site address on title page.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60835-2-4Edition 1.11998-02Mthodes de mesure applicables au matrielutilis pour
16、 les systmes de transmissionnumrique en hyperfrquence Partie 2-4:Mesures applicables aux faisceauxhertziens terrestres Emetteur/rcepteur,modulateur/dmodulateurinclusMethods of measurement for equipment used indigital microwave radio transmission systems Part 2-4:Measurements on terrestrial radio-relay systems Transmitter/receiver includingmodulator/demodulator Commission Electrotechnique Internationale International Electrotechnical CommissionPour prix,voir catalogue en vigueurFor price,see curr
