1、IEEE Std 187-2003(Revision of IEEE Std 187-1990)IEEE Standards187TMIEEE Standard for MeasurementMethods of Emissions from FM andTelevision Broadcast Receivers in theFrequency Range of 9 kHz to 40 GHzPublished by The Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 1
2、0016-5997, USA7 May 2004IEEE Electromagnetic Compatibility SocietySponsored by theStandards Development CommitteeIEEE StandardsPrint: SH95186PDF: SS95186Recognized as anAmerican National Standard (ANSI)The Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997,
3、 USACopyright 2004 by the IEEE.All rights reserved. Published 7 May 2004. Printed in the United States of America.IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard for educationalclassroom use can also be obtained through t
4、he Copyright Clearance Center.NOTEAttention is called to the possibility that implementation of this standard may require use of subjectmatter covered by patent rights. By publication of this standard, no position is taken with respect to the exist-ence or validity of any patent rights in connection
5、 therewith. The IEEE shall not be responsible for identifyingpatents for which a license may be required by an IEEE standard or for conducting inquiries into the legal valid-ity or scope of those patents that are brought to its attention.Copyright 2004 IEEE. All rights reserved. iiiIntroduction(This
6、 introduction is not part of IEEE Std 187-2003, IEEE Standard for Measurement Methods of Emissions from FMand Television Broadcast Receivers in the Frequency Range of 9 kHz to 40 GHz.)This standard is a revision of IEEE Std 187-1990 IEEE, Standard on Radio Receivers: Open FieldMethod of Measurement
7、of Spurious Radiation from FM and Television Broadcast Receivers, andIEEE Std 213TM-1987, IEEE Standard Procedure for Measuring Conducted Emissions in the Range of300 kHz to 25 MHz from Television and FM Broadcast Receivers to Power Lines.This standard is specifically written to outline the procedur
8、es for testing television (NTSC and ATSC) andFM broadcast receivers.Notice to usersPatentsAttention is called to the possibility that implementation of this standard may require use of subject mattercovered by patent rights. By publication of this standard, no position is taken with respect to the e
9、xistence orvalidity of any patent rights in connection therewith. The IEEE shall not be responsible for identifyingpatents or patent applications for which a license may be required by to implement an IEEE standard or forconducting inquiries into the legal validity or scope of those patents that are
10、 brought to its attention.ErrataErrata, if any, for this and all other standards can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL forerrata periodically.InterpretationsCurrent interpretations can be accessed
11、 at the following URL: http:/standards.ieee.org/reading/ieee/interp/index.html.ParticipantsAt the time this standard was completed, the 187 Working Group had the following membership:David L. Traver, ChairRisaburo Sato, Vice ChairMark Arthurs, SecretaryBrian CromartyJoseph DiBiaseEugene JansonJon Ka
12、nterTed MarksTom MockRichard MullenWayne M. MyrickKenji OkazakiMark S SchuylerAkira SugiuraRolly U. VelbisDave Wilsoniv Copyright 2004 IEEE. All rights reserved.When the IEEE-SA Standards Board approved this standard on 12 December 2003, it had the followingmembership:Don Wright, ChairHoward M. Fraz
13、ier, Vice ChairJudith Gorman, Secretary*Member EmeritusAlso included are the following nonvoting IEEE-SA Standards Board liaisons:Satish K. Aggarwal, NRC RepresentativeRichard DeBlasio, DOE RepresentativeAlan Cookson, NIST RepresentativeDon MessinaIEEE Standards Project EditorH. Stephen BergerJoe Br
14、uderBob DavisRichard DeBlasioJulian Forster*Toshio FukudaArnold M. GreenspanRaymond HapemanDonald M. HeirmanLaura HitchcockRichard H. HulettAnant JainLowell G. JohnsonJoseph L. Koepfinger*Tom McGeanSteve MillsDaleep C. MohlaWilliam J. MoylanPaul NikolichGary RobinsonMalcolm V. ThadenGeoffrey O. Thom
15、psonDoug ToppingHoward L. WolfmanCopyright 2004 IEEE. All rights reserved. vContents1. Overview 11.1 Scope 12. References 13. Definitions . 24. Sources of spurious emissions . 25. Modes of spurious emissions . 36. Method of measurement (conducted emissions) . 36.1 General. 36.2 Equipment required an
16、d setup details 36.3 Measurement procedure. 87. Method of measurement (radiated emissions) . 87.1 General. 87.2 Equipment required and setup details 87.3 Measurements procedure . 128. Antenna radiation (local oscillator measurement) . 13Annex A (informative) General TV test requirements 14Annex B (i
17、nformative) Bibliography 15Copyright 2004 IEEE. All rights reserved. 1IEEE Standard for Measurement Methods of Emissions from FM and Television Broadcast Receivers in the Frequency Range of 9 kHz to 40 GHz1. OverviewThis standard is divided into three types of testing: Conducted Emissions (Clause 6)
18、, Radiated Emissions(Clause 7), and Antenna Radiation (Clause 8). The standard also includes two informative annexes entitled“General TV Test Requirements” and “Bibliography.”1.1 ScopeSpurious radiation from sound and television broadcast receivers of the superheterodyne type are possiblesources of
19、interference with other radio services.This standard describes the potential sources of spurious radiation from receivers intended for the receptionof sound and television broadcast, and the measurement methods for them.2. ReferencesThis standard shall be used in conjunction with the following publi
20、cations. When the following specifica-tions are superseded by an approved revision, the revision shall apply.ANSI C63.2-1996, American National Standard for Electromagnetic Noise and Field Strength, 10 kHz to40 GHz Specifications.1ANSI C63.4-2001 American National Standard for Methods of Measurement
21、 of Radio-Noise Emission fromLow-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHZ.Code of Federal Regulations (CFR) Title 47, Part 15.21ANSI publications are available from the Sales Department, American National Standards Institute, 25 West 43rd Street, 4th Floor, New Yor
22、k, NY 10036, USA (http:/www.ansi.org/).2Code of Federal Regulations (CFR) documents are available from the U.S. Government Printing Office, 732 N. Capitol Street NW, Washington, DC 20401 (http:/bookstore.gpo.gov/). IEEEStd 187-2003 IEEE STANDARD FOR MEASUREMENT METHODS OF EMISSION FROM FM AND2 Copyr
23、ight 2004 IEEE. All rights reserved.CISPR 16-1 (2002-10) Ed. 2.1 Consolidated Edition Specification for radio disturbance and immunity mea-suring apparatus and methodsPart 1: Radio disturbance and immunity measuring apparatus.3CISPR 22 (2003) Ed. A Information technology equipmentRadio disturbance c
24、haracteristicsLimitsand methods of measurement.ITU-R BT.471-1 (07/86), Nomenclature and description of color bar signals.43. DefinitionsFor the purposes of this standard, the following terms and definitions apply. The Authoritative Dictionary ofIEEE Standards Terms, Seventh Edition B1,5ANSI C63.4,6a
25、nd CFR 47 Part 15 should be referenced forterms not defined in this clause. 3.1 frequency modulation (FM) sound broadcast receiver: A device designed to receive FM soundbroadcast from a licensed station on frequencies that are authorized for commercial or public broadcasting.3.2 television (TV) broa
26、dcast receiver: A device designed to receive television pictures that are broadcastsimultaneously with sound from a licensed station on frequencies that are authorized for commercial or pub-lic broadcasting.4. Sources of spurious emissionsPossible sources of spurious emissions typically found in TV
27、and FM receivers are as follows:a) The local oscillator circuits, which may radiate fundamental, harmonics, and intermodulation prod-ucts formed from the local oscillator fundamental and harmonics.b) Intermediate frequency amplifier, which may radiate spurious signals at the fundamental and har-moni
28、cs of the intermediate frequency.c) In some television receivers, the high-voltage circuits for the cathode-ray tube incorporate radio fre-quency oscillators, which may be a potential source of radiation at fundamental and harmonicfrequencies.d) In television receivers, the sweep circuits, which may
29、 radiate harmonics of their fundamentalfrequencies.e) In television receivers, the video amplifier and any nonlinear circuit element that may produce sig-nals by demodulation of radio or intermediate frequency signals.f) Digital circuits incorporated for a channel display, or processing of digital w
30、anted signals, or anyother digital control circuit.3CISPR documents are available from the International Electrotechnical Commission, 3, rue de Varemb, Case Postale 131, CH 1211, Genve 20, Switzerland/Suisse (http:/www.iec.ch/). They are also available in the United States from the Sales Department,
31、 American National Standards Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036, USA.4ITU-T publications are available from the International Telecommunications Union, Place des Nations, CH-1211, Geneva 20, Swit-zerland/Suisse (http:/www.itu.int/).5The numbers in brackets correspond thos
32、e in the bibliography in Annex B.6Information on references can be found in Clause 2.IEEETELEVISION BROADCAST RECEIVERS IN THE FREQUENCY RANGE OF 9 KHZ TO 40 GHZ Std 187-2003Copyright 2004 IEEE. All rights reserved. 35. Modes of spurious emissionsPossible modes of spurious emissions from sources enu
33、merated in Clause 4 are as follows:a) Spurious radiation signals emanating from any internal source, such as those described in Clause 4,may appear on the receiver antenna terminal(s) and be radiated from antenna systems attachedthereto. Such signals may be balanced or unbalanced to ground.b) Radiat
34、ion from the sources enumerated in Clause 4 may appear in the vicinity of the receiver due todirect electric fields or magnetic fields or both, created by the components assembled on or withinthe chassis or by cavity resonance.c) Radiation from any of the sources may be propagated through the power
35、supply cord and anyperipherals that may be attached to the receiver. Such radiation may be due to balanced or unbal-anced current in the power cord or connection leads.6. Method of measurement (conducted emissions)6.1 GeneralTelevision and FM broadcast receivers are potential sources of interference
36、 to other television and FMbroadcast receivers, receivers in other services, and other electronics. This section of the standard defines amethod for obtaining a measure of the emissions conducted by the power line from these potential interfer-ence sources in the frequency range of 150 kHz to 30 MHz
37、. This section of the standard describes standardinput signals, the equipment setup, and measurement techniques.6.2 Equipment required and setup details6.2.1 Test signalThe standard test signal for FM radio receivers is an RF signal modulated with a 1 kHz tone. A digital soundsignal is a RF signal m
38、odulated with a digital data stream containing sound information.The standard test signal for television receivers is a standard television color bar signal according to ITU-RBT 471-1. The input signal shall be a vision carrier modulated by a complete video waveform, including acolor burst together
39、with an unmodulated sound carrier of the correct relative amplitude and frequency. Adigital television signal is a RF signal modulated with a digital data stream containing video andaccompanying sound information.For analog sound and television receivers, the input level of the test signal at the an
40、tenna terminal of theequipment under test (hereafter referred to as EUT) is sufficiently strong to provide a noise-free picture.The input level of the digital sound signal at the antenna terminal of the EUT is 60 dBV. The input levels ofthe digital television signals at the antenna terminal of the E
41、UT for 75 impedance connectors are 50 dBV(VHF) and 54 dBV (UHF) for terrestrial systems.6.2.2 Supply of the standard test signalThe standard test signal as defined in 6.2.1 shall be supplied to the EUT through a 50 to 75 antenna isola-tion transformer. This isolation transformer, details of which ar
42、e shown in Figures 13, is designed to havean impedance of 50 unbalanced for the input terminal and 75 unbalanced for the output terminal. IEEEStd 187-2003 IEEE STANDARD FOR MEASUREMENT METHODS OF EMISSION FROM FM AND4 Copyright 2004 IEEE. All rights reserved.If the receiver has a built-in antenna an
43、d external antenna terminal, the built-in antenna shall be discon-nected from the antenna terminal during these tests.If the receiver has no external antenna terminal and only a built-in antenna, the standard RF input signal issupplied at a sufficiently strong level to provide a noise-free picture t
44、o the receiver through a radiatingantenna.50 75 T Input 50 N-R T 510 510 1:1 1:1 1000 pF NC-R Insulated Box Output 75 Figure 1Isolation transformer for 46 MHz to 1.5 GHzFilter Characteristic Nominal ValueFrequency Band: 46 MHz to 1.5 GHzInsertion Loss: 30 dB +/-2dB Input Impedance: 50 Input Connecto
45、r: N-R Output Impedance: 75 Output Connector: NC-R Chassis: Insulated Material125 6550N-ROUTPUTINPUTNC-R(mm)Figure 2Typical size of isolation transformer for 46 MHz to 1.5 GHzIEEETELEVISION BROADCAST RECEIVERS IN THE FREQUENCY RANGE OF 9 KHZ TO 40 GHZ Std 187-2003Copyright 2004 IEEE. All rights rese
46、rved. 5When the receiver is designed only to have an impedance of 300 balanced, the RF signal shall be suppliedto the receiver through a suitable impedance transformer (e.g., 75 to 300 ).When the receiver has more than one tuner or a combination of analog and digital tuners, all receptionmodes shall
47、 be investigated, i.e., analog input, digital input, or combination of inputs. The reception modewith the highest emission with respect to the applicable emission limit shall be recorded. 6.2.3 Adjustment of operating controlsThe customer-operated controls of the receiver with the exception of the t
48、uning adjustments and controls ofcontrast, brightness, and color saturation for TV receivers shall be at center or neutral position. The controlsof contrast, brightness, and color saturation for TV receivers shall be set to produce a normal picture. This isobtained with the following luminance value
49、s: Black part of the test pattern: 2 cd/m2 Magenta part of the test pattern: 30 cd/m2 White part of the test pattern: 80 cd/m2The luminance of the magenta part of the test pattern should be set to 30 cd/m2. If this level cannot bereached, the luminance should be set to the maximum possible. If a value different from 30 cd/m2is used, itshall be stated together with the results.6.2.4 RF voltmeterAn RF voltmeter conforming to ANSI C63.2 or CISPR 16-1 shall be used. Other measuring equipment maybe used if the measurements corr
