1、 ETSI EN 300 422-2 V2.1.1 (2017-02) Wireless Microphones; Audio PMSE up to 3 GHz; Part 2: Class B Receivers; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU HARMONISED EUROPEAN STANDARD ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 2 Reference REN/ERM-TG17-19
2、 Keywords audio, harmonised standard, radio, radio MIC, testing ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88
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8、 ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 3 Conte
9、nts Intellectual Property Rights 7g3Foreword . 7g3Modal verbs terminology 7g3Executive summary 8g3Introduction 8g31 Scope 9g32 References 10g32.1 Normative references . 10g32.2 Informative references 10g33 Definitions, symbols and abbreviations . 11g33.1 Definitions 11g33.2 Symbols 14g33.3 Abbreviat
10、ions . 14g34 Technical requirements specifications . 15g34.1 Radio microphone 15g34.2 In ear monitoring 15g34.3 Tour Guide Systems . 15g34.4 Wireless Multichannel Audio Systems. 15g34.5 Environmental profile . 16g35 Testing for compliance with technical requirements 16g35.1 Presentation of equipment
11、 for testing purposes 16g35.1.1 Introduction. 16g35.1.2 Choice of model for testing 17g35.1.3 Definitions of alignment and switching ranges . 17g35.1.4 Choice of frequencies . 17g35.1.5 Testing of single channel equipment 18g35.1.6 Testing of two channel equipment 18g35.1.7 Testing of multi-channel
12、equipment (more than two channels) 18g35.1.8 Testing of equipment without a permanent external RF port 18g35.1.8.1 General 18g35.1.8.2 Equipment with a permanent internal RF port 18g35.1.8.3 Equipment with a temporary RF port 18g35.2 Mechanical and electrical design 18g35.2.1 General 18g35.2.2 Physi
13、cal Controls 18g35.2.3 Performance testing with integral antenna 19g36 Test conditions, power sources and ambient conditions 19g36.1 Normal and extreme test conditions . 19g36.2 Test power source . 19g36.3 Normal test conditions 19g36.3.1 Normal temperature and humidity 19g36.3.2 Normal test power s
14、ource voltage . 20g36.3.2.1 Mains voltage 20g36.3.2.2 Other power sources 20g36.4 Extreme test conditions 20g36.4.1 Extreme temperatures . 20g36.4.1.1 General 20g36.4.1.2 Procedures for tests at extreme temperatures 20g36.4.2 Extreme test power source voltages 20g36.4.2.1 Mains voltage 20g36.4.2.2 O
15、ther power sources 20g3ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 4 7 General conditions 21g37.1 Normal test modulation 21g37.1.1 Analogue systems . 21g37.1.2 Digital systems 22g37.1.3 WMAS 22g37.2 Artificial antenna 22g37.2.1 General 22g37.3 Test fixture . 22g37.3.1 General 22g37.4 Test site and gener
16、al arrangements for radiated measurements 23g37.4.1 Introduction. 23g37.5 Modes of operation of the transmitter 23g37.5.1 General 23g37.6 Arrangement for test signals at the input of the transmitter . 23g37.6.1 General 23g38 Methods of measurement and limits for transmitter parameters 23g38.1 Freque
17、ncy stability . 23g38.1.1 Method of measurement (analogue) . 23g38.1.2 Method of measurement (digital) 24g38.1.3 Limit . 24g38.2 Rated output power 24g38.2.1 Method of measurement for equipment without integral antenna 24g38.2.2 Method of measurement for equipment with integral antenna 24g38.2.2.1 M
18、ethod of measurement under normal test conditions . 24g38.2.3 Limit . 25g38.3 Necessary bandwidth 25g38.3.1 General 25g38.3.2 Necessary Bandwidth (BN) for Analogue Systems 25g38.3.2.1 Method of Measurement . 25g38.3.2.2 Limits 26g38.3.3 Necessary Bandwidth (BN) for Digital Systems 26g38.3.3.1 Method
19、 of Measurement . 26g38.3.3.2 Limits 28g38.3.4 Necessary Bandwidth (BN) for WMAS . 29g38.3.4.1 Applicability 29g38.3.4.2 Method of measurement 29g38.3.4.3 Limits 31g38.3.5 Bandwidth measurement procedure for PMSE operation in 2,4 GHz to 2,4835 GHz 31g38.3.5.1 Applicability 31g38.3.5.2 Definition 31g
20、38.3.5.3 Limits 31g38.3.5.4 Conformance . 31g38.3.5.4.1 Test conditions 31g38.3.5.4.2 Test method . 32g38.3.6 Transmitter Unwanted Emissions in the Out-of-band Domain Alternative Measurement Procedure 32g38.3.6.1 Applicability 32g38.3.6.2 Definition 32g38.3.6.3 Limit 33g38.3.6.4 Conformance . 33g38.
21、3.6.4.1 Test conditions 33g38.3.6.4.2 Test method . 33g38.4 Spurious emissions . 35g38.4.1 Definition 35g38.4.2 Method of measurement . 35g38.4.3 Limits 36g38.4.4 Measuring receiver . 36g38.5 Transmitter intermodulation distortion . 36g38.5.1 Definition 36g38.5.2 Method of measurement . 36g38.5.3 Li
22、mits 38g3ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 5 9 Receiver 38g39.1 Spurious emissions . 38g39.1.1 Definitions 38g39.1.2 Method of measuring the power level in a specified load. 38g39.1.3 Method of measuring the effective radiated power of the enclosure 38g39.1.4 Method of measuring the effective
23、radiated power . 39g39.1.5 Limits 39g39.2 Receiver sensitivity 39g39.2.1 Definition 39g39.2.2 Method of measurement . 40g39.2.3 Limits 40g39.3 Receiver adjacent channel selectivity . 40g39.3.1 Definition 40g39.3.2 Method of measurement . 40g39.3.3 Limits 41g39.4 Receiver blocking . 41g39.4.1 Definit
24、ion 41g39.4.2 Method of measurement . 41g39.4.3 Limits 42g310 Measurement uncertainty . 42g3Annex A (informative): Relationship between the present document and the essential requirements of Directive 2014/53/EU . 43g3Annex B (normative): Measurement of Necessary Bandwidth (B) for analogue systems .
25、 44g3B.1 Test configuration for measurement of the Necessary Bandwidth (B) for analogue systems 44g3Annex C (normative): Radiated measurement 45g3C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 45g3C.1.1 General . 45g3C.1.2 Anechoic chamber 45g3C.1.3 A
26、nechoic chamber with a conductive ground plane . 46g3C.1.4 Open Area Test Site (OATS) . 47g3C.1.5 Test antenna 48g3C.1.6 Substitution antenna . 48g3C.1.7 Measuring antenna . 49g3C.1.8 Stripline arrangement . 49g3C.1.8.1 General 49g3C.1.8.2 Description 49g3C.1.8.3 Calibration 49g3C.1.8.4 Mode of use
27、49g3C.2 Guidance on the use of radiation test sites . 49g3C.2.1 General . 49g3C.2.2 Verification of the test site . 49g3C.2.3 Preparation of the DUT 50g3C.2.4 Power supplies to the DUT. 50g3C.2.5 Volume control setting for analogue speech tests 50g3C.2.6 Range length . 50g3C.2.7 Site preparation 51g
28、3C.3 Coupling of signals . 51g3C.3.1 General . 51g3C.3.2 Data signals 51g3C.3.3 Speech and analogue signals 52g3C.3.3.0 General 52g3C.3.3.1 Acoustic coupler description. 52g3C.3.3.2 Calibration 52g3C.4 Standard test position . 52g3ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 6 C.5 Test fixture . 53g3C.5.
29、1 General . 53g3C.5.2 Description . 53g3C.5.3 Calibration 54g3C.5.4 Mode of use 54g3Annex D (informative): Additional receiver parameters identified under article 3.2 of Directive 2014/53/EU . 55g3Annex E (informative): Application form for wireless microphone testing 56g3E.1 Introduction 56g3E.1.1
30、Description . 56g3E.1.2 Notice . 56g3E.2 Transmitter intermodulation distortion. 56g3E.2.1 General . 56g3E.2.2 Definition . 56g3E.2.3 Method of measurement . 56g3E.2.4 Limits . 56g3E.2.5 Settings and results . 57g3E.3 Receiver Sensitivity 57g3E.3.1 General . 57g3E.3.2 Definition . 57g3E.3.3 Method o
31、f measurement . 57g3E.3.4 Limits . 57g3E.3.5 Settings and results . 58g3E.4 Receiver Adjacent Channel Power Selectivity . 58g3E.4.1 General . 58g3E.4.2 Definition . 58g3E.4.3 Method of measurement . 58g3E.4.4 Limits . 58g3E.4.5 Settings and results . 59g3E.5 Receiver blocking . 59g3E.5.1 General . 5
32、9g3E.5.2 Definition . 59g3E.5.3 Method of measurement . 59g3E.5.4 Limits . 59g3E.5.5 Settings and results . 60g3Annex F (informative): Bibliography . 61g3Annex G (informative): Change history . 62g3History 63g3ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 7 Intellectual Property Rights IPRs essential or p
33、otentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essent
34、ial, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee ca
35、n be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
36、 compatibility and Radio spectrum Matters (ERM). The present document has been prepared under the Commissions standardisation request C(2015) 5376 final i.16 to provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation of the laws of the Mem
37、ber States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC i.12. Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with the normative clauses of the present document given in table A.1
38、 confers, within the limits of the scope of the present document, a presumption of conformity with the corresponding essential requirements of that Directive and associated EFTA regulations. The present document is part 2 of a multi-part deliverable. Full details of the entire series can be found in
39、 part 1 i.17. National transposition dates Date of adoption of this EN: 13 February 2017 Date of latest announcement of this EN (doa): 31 May 2017 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 30 November 2017 Date of withdrawal of any conflicting National St
40、andard (dow): 30 November 2018 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provi
41、sions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI EN 300 422-2 V2.1.1 (2017-02) 8 Executive summary With the introduction of Directive 2014/53/EU i.12, the present multi-part deliverable has been reformatted into multiple parts to accom
42、modate the different types of equipment represented, i.e. different receivers for audio Programme Making and Special Events (PMSE) and Assistive Listening Devices (ALD). Part 2 covers Class B receivers. The present document seeks to improve spectrum efficiency and has introduced new technology to as
43、sist in maximizing the use of available spectrum. The present document seeks to provide a platform for Wideband Multichannel Audio Systems (WMAS). Although the present document covers spectrum up to 3 GHz, it should be emphasized that multi-channel audio PMSE systems used in professional productions
44、 are best suited to spectrum under 2 GHz for reasons of propagation and body interaction. Further information on audio PMSE is available in ECC Report 204 i.13. Introduction With the introduction of Directive 2014/53/EU i.12, receiver parameters are now included and the removal of the 9 kHz lower li
45、mit has brought inductive loop systems and receivers into this multi-part deliverable. Inductive loop transmitters are covered within ETSI EN 303 340 i.18 along with test receivers; hearing aids containing inductive loop receivers (often referred to as T coil) are now covered in ETSI EN 300 422-4 i.
46、21. The frequency range of the present document has been reduced to accommodate inductive loop receivers. The present document is a testing standard based on spectrum utilization parameters and does not include performance characteristics that may be required by the user nor requirements for interfa
47、cing equipment. This multi-part deliverable was originated in 1991 when Assistive Listening Devices (ALD) were a very small part of the Radio Microphone Industry; in recent years major advances in both the volume and functionality of ALDs has caused a rethink in how to best present the testing regim
48、e in a clear and concise manner. After a number of discussions the present document covers audio PMSE as Parts 1, 2, and 3, and ALDs as Part 4. Systems including assistive listening devices (Aids for the handicapped) with analogue or digital modulations and operating in the range 863 MHz to 865 MHz
49、may be tested to either the present document or to ETSI EN 301 357-1 i.1 with due consideration of power and operating frequency. ALDs may in some cases require stereo transmission to present both left and right audio information to the wearer. For that reason, devices that transmit information to the hearing impaired may require two channel operation. It is expected that two or more channel devices will be tested separately when determining bandwidth and associated measurements. Channels may involve the use of two separate frequencies or wider bandwidth. Si
