IEC 60487-2-5-1984 Methods of measurement for equipment used in terrestrial radio-relay systems Part 2 Measurements for sub-systems Section Five - Frequency de.pdf
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1、NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 60487-2-5 Premire dition First edition 1984-01 Mthodes de mesure applicables au matriel utilis dans les faisceaux hertziens terrestres Deuxime partie: Mesures sur les sous-ensembles Section cinq - Dmodulateurs de frquence Methods of measurement for
2、 equipment used in terrestrial radio-relay systems Part 2: Measurements for sub-systems Section Five - Frequency demodulators Numro de rfrence Reference number CEI/IEC 60487-2-5: 1984 Numros des publications Depuis le ler janvier 1997, les publications de la CE1 sont numrotes partir de 60000. Public
3、ations consolides Les versions consolides de certaines publications de la CE1 incorporant les amendements sont disponibles. Par exemple, les numros ddition 1.0, 1.1 et 1.2 indiquent respectivement la publication de base, la publication de base incorporant lamendement 1, et la publication de base inc
4、orporant les amendements 1 et 2. Validit de la presente publication Le contenu technique des publications de la CE1 est constamment revu par la CE1 afin quil reflte ltat actuel de la technique. Des renseignements relatifs la date de reconfirmation de la publication sont disponibles dans le Catalogue
5、 de la CEI. Les renseignements relatifs des questions ltude et des travaux en cours entrepris par le comit technique qui a tabli cette publication, ainsi que la liste des publications tablies, se trouvent dans les documents ci- d e s s o u s : 0 Site web de la CEI* Catalogue des publications de la C
6、E1 Publi annuellement et mis jour rgulirement (Catalogue en ligne) Disponible la fois au sur la page de titre. Numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. Consolidated publications Consolidated versions of some IEC publications including a
7、mendments are available. For example, edition numbers 1 .O, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Validity of this publication The technical content of IEC publications is ke
8、pt under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to the date of the reconfirmation of the publication is available in the IEC catalogue. Information on the subjects under consideration and work in progress undertaken by the technic
9、al committee which has prepared this publication, as well as the list of publications issued, is to be found at the following IEC sources: IEC web site* Catalogue of IEC publications Published yearly with regular updates (On-line catalogue)* Available both at the IEC web site and as a printed period
10、ical IEC Bulletin Terminology, graphical and letter symbols For general terminology, readers are referred to I EC 60050: International Electrotechnical Vocabulary (IEV). For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to publications IEC
11、60027: Letter symbols to be used in electrical technology, I EC 6041 7: Graphical symbols for use on equipment. Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols for diagrams. * See web site address on title page. NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC
12、60487-2-5 Premire dition First edition 1984-01 Mthodes de mesure applicables au matriel utilis dans les faisceaux hertziens terrestres Deuxime partie: Mesures sur les sous-ensembles Section cinq - Dmodulateurs de frquence Methods of measurement for equipment used in terrestrial radio-relay systems P
13、art 2: Measurements for sub-systems Section Five - Frequency demodulators O IEC 1984 Droits de reproduction rservs -Copyright - all rights reserved Aucune partie de cette publication ne peut tre reproduite ni No part of this publication may be reproduced or utilized in utilise sous quelque forme que
14、 ce soit et par aucun any form or by any means, electronic or mechanical, procd, lectronique ou mcanique, y compris la photo- including photocopying and microfilm, without permission in copie et les microfilms, sans laccord crit de Iditeur. writing from the publisher. International Electrotechnical
15、Commission Telefax: +41 22 919 0300 3, rue de Varemb Geneva, Switzerland IEC web site http: /w.iec.ch e-mail: inmailiec.ch N CODE PRIX PRICE CODE Pour prix, voir catalogue en vigueur For price, see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission
16、 MeMnYHapOnHaR 3IleKTPOTeXHHBCHaR HOMHCCHR O 487-2-5 0 IEC 1984 -3- CONTENTS FOREWORD . PREFACE SECTION FIVE . FREQUENCY DEMODULATORS Clause 1 . Scope . 2 . Definition . 3 . General 4. I.F. input return-loss 5 . 6 . Deviation sensitivity 7 . Sense of demodulation . 8 . Differential gain/non-linearit
17、y and differential phase/group-delay . 9 . Baseband amplitude/frequency characteristic Baseband output-impedance and return-loss 10 . F.D.M.-telephony measurements . I 1 . Television measurements FIG URES Page 5 5 7 7 9 9 9 11 15 17 21 23 23 26 -4- 487-2-5 0 CE1 1984 COMMISSION LECTROTECHNIQUE INTER
18、NATIONALE MTHODES DE MESURE APPLICABLES AU MATRIEL UTILIS DANS LES FAISCEAUX HERTZIENS TERRESTRES Deuxime partie : Mesures sur les sous-ensembles Section cinq - Dmodulateurs de frquence PRAMBULE 1) Les dcisions ou accords officiels de la C E I en ce qui concerne les questions techniques, prpars par
19、des Comits - une section frquence intermdiaire bande de base (par exemple discriminateur); - une section bande de base. 487-2-5 0 I EC 1984 -7- METHODS OF MEASUREMENT FOR EQUIPMENT USED IN TERRESTRIAL RADIO-RELAY SYSTEMS Part 2: Measurements for sub-systems SECTION FIVE - FREQUENCY DEMODULATORS 1. S
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