1、BRITISH STANDARD Methods of measurement for radio transmitters - Part 1: General characteristics for broadcast transmitters The European Standard EN 60244-1:2000 has the status of a British Standard ICs 33.060.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 60244-1:20
2、00 IEC 602441: 1999 STD-BSI BS EN b0249-L-ENGL 2000 LbZibb9 0854573 O20 direction of the Electrotechnicai Amd. No. D - present to the responsible intemationavEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related interna
3、tional and European developments and promulgate them in the UK A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC
4、 60027-1. For a period of lime during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is dram to the fact that CEN and CENELEC standards normally include an annex which lists normative references to internatio
5、nal publications with their corresponding European publications. The British Standards which implement these international or European publications referred to in this document may be found in the BSI Stanhds Catalogue under the section entitled “International Standards Correspondence Index”, or by
6、using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include ali the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immun
7、ity from legal obligations. Summary of pages This document comprises a hnt cover, an inside front cover, the EN title page, pages 2 to 42, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. O BSI 07-2000 I I ISBN O
8、580 34679 X EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60244-1 February 2000 ICs 33.060.20 Supersedes HD236.1 Sl:1977 English version Methods of measurement for radio transmitters Part 1 : General characteristics for broadcast transmitters (IEC 60244-1 :i 999) Mthodes de mesure applicables
9、 aux metteurs radiolectriques Partie 1 : Caractristiques gnrales MeBverfahren fr Funksender Teil 1 : Allgemeine Kenndaten fr Rundfunksender, des metteurs de radiodiffusion (CE1 60244-1 : 1999) (IEC 60244-1 :1999) This Eukopean Standard was approved by CENELEC on 2000-01 -01. CENELEC members are boun
10、d to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this Europeap Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Cen
11、tral Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same s
12、tatus as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC Euro
13、pean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brusseb 2000 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for
14、 CENELEC members. Ref. No. EN 60244-1:ZOOO E Page 2 EN 60244-1:2000 Foreword The text of document 103/14/FDIS, future edition 2 of IEC 60244-1, prepared by IEC TC 103, Transmitting equipment for radiocommunication, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 6024
15、4-1 on 2000-01 -01. This European Standard supersedes HD 236.1 S1: 1977. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2000-1 0-01 - latest date by which the national stan
16、dards conflicting with the EN have to be withdrawn (daw) 2003-01 -01 This standard is intended to be used in conjunction with the various parts of EN 60244. e Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this
17、 standard, annexes C, D and ZA are normative and annexes A, B and E are informative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard. IEC 60244-1 : 1999 was apprved by CENELEC as a European Standard without any modification. In the official version, for
18、annex E, Bibliography, the following notes have to be added for the standards indic,ated: IEC 60060-1 NOTE: Harmonized, together with its corr,igendum March 1990 as HD 588.1 S1:1991 hot modified). IEC 60060-2 IEC 60099-1 NOTE: Harmonized as EN 60060-2: 1994 (not modified). NOTE: Harmonized as EN 600
19、99-1:1994 (not modified). IEC 60244-9 NOTE: Harmonized as EN 60244-9: 1994 (not modified). IEC 60244-1 1 NOTE: Harmonized as EN 60244-1 1 : 1993 (not modified). STD-BSI BS EN b02Y4-1-ENGL 2000 B Lb24bb9 085457b 83T Page 3 EN 60244-1:2000 CONTENTS Page Clause 1 2 3 4 5 6 7 Scope 5 Normative reference
20、s 5 Definitions . 7 General conditions of measurement and operation . 7 General performance characteristics 8 5.1 Transmission systems 8 5.2 Frequency (range, stability, etc.) . 10 5.3 Output power 12 5.4 Power consumption 13 5.5 Impedance 14 5.6 Bandwidth 15 5.7 Out-of-band emission 16 5.8 Spurious
21、 emission 17 5.9 Cabinet radiation 18 Protection against atmospheric discharge 19 6.1 General 19 6.2 Methods of measurement 19 Acoustic noise produced by the transmitter system 20 7.1 Definition 20 7.2 General 20 7.3 Measurements 21 Annex A (informative) Acoustic noise in transmitter halls 22 Annex
22、B (informative) Protection against atmospheric discharge 26 Annex C (normative) Transmitter frequency tolerances . 33 Annex D (normative) Permitted spurious emission power levels 38 Annex E (informative) Bibliography . 41 Annex ZA (normative) Normative references to international publications with t
23、heir corresponding European publications . 42 Q BSI 07-2000 STD-BSI BS EN b0244-L-ENGL 2000 lb24bb9 0854577 77b M Page 4 EN 60244-1:2000 Figure 1 . Example of frequency drift as a function of time t(t) 11 Figure 2 . Typical pulse generator output voltage characteristic . 19 Figure 3 . Example of a b
24、lock diagram for the pulse generator . 20 Figure A.l - Acoustic noise rating nomogram . 25 Figure B.l - Test bench for measurements of protection against impulses of magnitude 1. 2/50 of the 6 kV peak value 27 Figure B.2 - Test bench for measurements of protection against impulses of magnitude 1, 2/
25、50 of the 6 kV peak value 27 Figure 8.3 - Correction factor for air density 29 Figure 8.4 - Voltage waveform of an ideal impulse . 30 Figure 6.5 - Examples of curves for the determination of the ideal peak value 31 Figure B.6 - Examples of irregular waveforms 31 O BSI 07-2000 STD-BSI BS EN bUZq4-L-E
26、NGL 2000 I Lb24bb7 0854578 b02 Page 6 EN 60244-12000 METHODS OF MEASUREMENT FOR RADIO TRANSMITTERS - Part 1 : General Characteristics for broadcast transmitters 1 Scope This part of IEC 60244 defines the general characteristics of broadcast transmitters and standardizes the conditions and methods of
27、 measurement to be used to ascertain the performance of a broadcast transmitter and to make possible the comparison of the results of measurements made by different observers. The methods of measurement detailed in this standard are intended for type tests and may also be used for acceptance tests a
28、nd factory tests (see clause 3). This part of IEC 60244 does not specify limiting values of the various quantities for acceptable performance, as these should be given in the relevant equipment specification, preferably in the form laid down in an appropriate IEC recommendation. 2 Normative referenc
29、es The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60244. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on part of IEC
30、 60244 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and IS0 maintain registers of currently valid International S
31、tandards. IEC 60244-5:1992, Methods of measurement for radio transmitters - Part 5: Performance ch ara c te ris tics of tele vision transmitt ers IEC 60244-13:1991, Methods of measurement for radio transmitters - Part 73: Performance characteristics for FM sound broadcasting transmitters IEC 60244-1
32、5:-, Methods of measurement for radio transmitters - Part 75: Amplitude- modulated transmitters for sound broadcastingl) IEC 600651:1979. Sound level meters IS0 3744:1994, Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially fre
33、e field over a reflecting plane IS0 3745:1977, Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and semi-anechoic rooms 1) To be published. 8 BSI 07-2000 Page 6 EN 60244-1:2000 ITU-R Recommendation 328-7 - Bandwidth ITU-R Recommen
34、dation 559 - Standard coloured noise signal ITU-R Report 275 - Bandwidth ITU-R Report 324 - Bandwidth Radio Regulations and appendices: Geneva, 1990 O BSI 07-2000 Page 7 EN 60244-1:2000 3 Definitions For the purposes of this part of IEC 60244, the following definitions apply. 3.1 broadcast transmitt
35、er equipment producing radiofrequency energy for the purpose of terrestrial broadcasting NOTE For the purpose of this standard, such auxiliary equipment as is necessary to maintain the transmitter in normal operation, together with any device to match the impedance of the antenna (or the antenna tra
36、nsmission line) to the transmitter, including harmonic or other filters, are to be considered as part of the transmitter. 3.2 broadcast transmitting system equipment comprising a broadcast transmitter connected to its antenna or antennas, or several transmitters connected to a common antenna NOTE Un
37、less specifically indicated, this standard refers only to single broadcast transmitters. 3.3 type tests series of tests including a design evaluation carried out on a representative sample of the transmitting equipment, with the object of determining that a particular manufacturer can be considered
38、capable of producing products meeting the specification 3.4 factory tests tests carried out by the manufacturer to verify that his products meet the specification 3.5 acceptance tests tests to determine the acceptability of a consignment of transmitting equipment, carried out in the factory, or on s
39、ite after commissioning the equipment, on the basis of an agreement between customer and manufacturer The agreement shall cover a) the sample size; b) the selection of the tests; c) the extent to which the results of the selected tests should conform to the specification. NOTE In the event of diverg
40、ent test results, IEC standard test methods should be employed. 4 General conditions of measurement and operation The operating conditions given in column a) shall apply during the measurements to confirm that the equipment meets the performance specification. Outside the operating conditions in col
41、umn a) but within the extended limits of column b), the performance specification limits may be relaxed, subject to acceptable transmission performance and conformity with the requirements of the Radio Regulations. It is desirable that the limits for such relaxed performance should be given in the s
42、pecification. O BSI 07-2000 STD-BSI BS EN b0299-L-ENGL 2000 H lrb24bb7 085958L IT7 Page 8 EN 60244-1:2000 a) b) 4.1 Temperature in the operating room 5 “C to 35 “C 1 “C to 45 “C (maximum temperature 26 OC) 4.2 Relative humidity in the operating room up to 75 % up to 90 % 4.3 Cooling air temperature*
43、 - entering the cooling system - entering the transmitter entering the cooling system up to 25 “C -20 “C to +35 “C 15 “C to 35 “C -25 “C to +40 “C -20 “C to +45 “C 4.4 Relative humidity of the cooling air up to 95 % up to 95 % 4.5 Air pressure 720 hPa to 1 060 hPa 720 hPa to 1 060 hPa 4.6 Immunity a
44、gainst mechanical vibrations up to 80 dB up to 100 dB airborne or air pressure related to 2 x 10-5 Pa Immunity against RF fields within the broadcasting bands - electric field strength, minimum - for special requirements 4.7 up to 10 V/m up to 100 V/m up to 10 V/m up to 100 V/m 4.8 Immunity against
45、magnetic fields up to 4 A/m up to 4 A/m 4.9 Mains voltage* +6 % to -10 % sudden change of I10 % of nominal value 4.10 Mains frequency I2 % I5 % NOTE For transmitters of power above 100 kW, where compliance with these conditions is problematical, the manufacturer should stipulate the alternative limi
46、ts he finds acceptable. 5 General performance characteristics 5.1 Transmission systems (article 4.2 of the Radio Regulations) The Radio Regulations designate emissions by a combination of numerals and letters according to their necessary bandwidth and classification. The designation for the necessar
47、y bandwidth always precedes the designation for the class of emission. 5.1 .I Designation of necessary bandwidth (article 4.2 of the Radio Regulations) The necessary bandwidth, rounded to three significant figures, is expressed by three numerals with a letter in the position of the decimal point to
48、represent the unit of bandwidth. H, K, M or G, respectively, are used for Hz, kHz, MHz and GHz. For liquid cooled transmitters, special agreements are to be applied. The output power of transmitters may vary dependent on the variation of the mains voltage. * (B BSI 07-2000 STD-BSI BS EN b024Ll-L-ENG
49、L 2000 Lb24bb7 0854582 033 D Page 9 EN 60244-1:2000 5.1.2 Designation of class of emission (article 4.2 of the Radio Regulations) First symbol - Type of modulation of the main carrier Symbol Emission of an unmodulated carrier Double sideband Single sideband, full carrier Single sideband, reduced or variable level carrier Single sideband, suppressed carrier Independent sidebands Vestigial sideband Frequency modulation Phase modulation N A H R J B C F G Second symbol - Nature of signal(s) modulating the main carrier No modulation signal O A single channe
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