IEC-62273-1-2007.pdf
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1、 INTERNATIONAL STANDARD IEC 62273-1 First edition 2007-02 Methods of measurement for radio transmitters Part 1: Performance characteristics of terrestrial digital television transmitters Reference number IEC 62273-1:2007(E) Copyright International Electrotechnical Commission Provided by IHS under li
2、cense with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 01:18:21 MSTNo reproduction or networking permitted without license from IHS -,-,- Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For ex
3、ample, IEC 34-1 is now referred to as IEC 60034-1. Consolidated editions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base public
4、ation incorporating amendments 1 and 2. Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to this publication, including its validity, is availab
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8、ormation. Customer Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00 Copyright International Electrotechnical Commission Provided by IHS under l
9、icense with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 01:18:21 MSTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IEC 62273-1 First edition 2007-02 Methods of measurement for radio transmitters Part 1: Performance
10、 characteristics of terrestrial digital television transmitters IEC 2007 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publi
11、sher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch W For price, see current catalogue PRICE CODE Commission Electrotechnique Internationale Internatio
12、nal Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 01:18:21 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 62273-1 IEC:2
13、007(E) CONTENTS FOREWORD.4 1 Scope.6 2 Normative references .6 3 Terms, definitions and abbreviations 7 4 General conditions of measurement .9 4.1 Temperature and humidity.9 4.2 Conditions for primary power supply9 4.3 Output power.9 4.4 Test load.9 4.5 Auxiliary equipment.9 4.6 Test equipment and t
14、est signals 10 5 General characteristics.10 5.1 Frequency.10 5.2 Output power.11 5.3 Spurious domain emission.14 5.4 Out-of-band domain emission14 5.5 Occupied bandwidth15 5.6 Power consumption.16 6 Transmitted signal characteristics.16 6.1 Intermodulation (shoulders).16 6.2 Modulation error ration
15、(MER) .17 6.3 Bit error ratio (BER) 17 6.4 Equivalent noise degradation 18 6.5 Phase noise 19 7 Protection against atmospheric discharge.20 8 Acoustic noise20 9 Safety.20 Annex A (normative) Eye-height characteristics .21 Annex B (normative) Characteristic frequency 22 Annex C (normative) Frequency
16、drift.25 Annex D (normative) Attenuation of the measuring coupler.26 Annex E (normative) Spurious emissions/out-of-band emissions.28 Annex F (normative) DVB-T shoulder attenuation measurement .32 Annex G (normative) Modulation error ratio (MER) measurement36 Annex H (normative) Bit error rate (BER)
17、measurement38 Bibliography39 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 01:18:21 MSTNo reproduction or networking permitted without license from IHS -,-,- 62273-1 IEC:2007(E
18、) 3 Figure 1 Measuring set-up for output power.12 Figure 2 Measuring set-up for spurious emission, out-of-band emission and bandwidth .15 Figure A.1 Transmitter eye diagram for jitter 21 Figure B.1 Measurement23 Figure B.2 Frequency spectrum analysis24 Figure D.1 Measurement26 Figure D.2 Relative co
19、upling 27 Figure D.3 Coupling attenuation.27 Figure E.1 Attenuation curve29 Figure E.2 Out-of-band and spurious emissions.30 Figure E.3 Output filter.30 Figure E.4 High-frequency spectrum 31 Figure E.5 Superimpose curve.31 Figure F.1 Measurement32 Figure F.2 Shoulder attenuation.33 Figure F.3 Analys
20、er setting 33 Figure F.4 Measurement system of intermodulation .34 Figure F.5 Measurement of intermodulation at the upper side of the channel .35 Figure G.1 Measurement .36 Figure H.1 Measurement38 Table 1 Measurement parameters for out-of-band emission .15 Table 2 Measurement parameters for occupie
21、d bandwidth.16 Table 3 Equivalent noise bandwidth.18 Table A.1 Electrical characteristic specifications for ASI link21 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 01:18:21 MS
22、TNo reproduction or networking permitted without license from IHS -,-,- 4 62273-1 IEC:2007(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ METHODS OF MEASUREMENT FOR RADIO TRANSMITTERS Part 1: Performance characteristics of terrestrial digital television transmitters FOREWORD 1) The International Ele
23、ctrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields
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