SIST EN 300 422-1 V2.1.2:2017
(Main)Wireless Microphones - Audio PMSE up to 3 GHz - Part 1: Class A Receivers - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU
Wireless Microphones - Audio PMSE up to 3 GHz - Part 1: Class A Receivers - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU
REN/ERM-TG17-18-C1
Brezžični mikrofoni - Avdio PMSE na frekvencah do 3 GHz - 1. del: Sprejemniki razreda A - Harmonizirani standard, ki zajema bistvene zahteve člena 3.2 direktive 2014/53/EU
Ta dokument zajema minimalne lastnosti, ki so potrebne za čim učinkovitejšo uporabo frekvenčnega spektra, ki je na voljo za avdio PMSE in podporne slušne pripomočke (ALD).
Ta dokument določa minimalne zahtevane lastnosti in merilne metode podpornih slušnih pripomočkov, radijskih mikrofonov in slušno-monitornih sistemov. Ne vključuje nujno vseh lastnosti, ki bi jih lahko potreboval uporabnik, in ne predstavlja nujno najboljšega mogočega delovanja.
Ta dokument se uporablja za opremo, ki deluje na radijskih frekvencah do 3 GHz (kot je prikazano v preglednici 1), z uporabo analogne in digitalne modulacije ter hibridne modulacije, ki uporablja tako analogno kot digitalno modulacijo.
Priporočena največja moč za opremo, ki je zajeta v tem dokumentu, je 250 mW za radijske mikrofone in 10 mW za podporne slušne pripomočke.
Izjema so javni slušni aparati, opredeljeni v poročilu CEPT 004 [i.8] ter odločbah ECC [i.10] in ES [i.9] glede nekdanjega pasu ERMES (od 169,4 MHz do 169,8125 MHz), kjer je opredeljena moč 500 mW.
Ta dokument zajema tudi radijske mikrofone, ki se uporabljajo v pasu od 863 MHz do 865 MHz z največjo močjo 10 mW.
Zahteve za elektromagnetno združljivost (EMC) obravnava dokument ETSI EN 301 489-9 [i.4].
Nacionalni predpisi, ki zajemajo:
1) največjo izhodno moč;
2) licenčni status;
imajo prednost, ali tisti predpisi, ki so vključeni v najnovejše različice:
• odločbe ES 2005/928/ES [i.10];
• odločbe ECC/DEC/(05)02 [i.11];
• odločbe ES SRD [i.9] ali
• dodatka 10 k priporočilu CEPT/ERC/REC 70-03 [i.7] (glej http://www.erodocdb.dk/);
• odločbe ES 2014/641/EU [i.13].
Za radijske mikrofone so morda potrebne posebne licence, razen če je določeno drugače v odločbi ES SRD, odločbi ECC ali nacionalnih vmesnikih.
Ta dokument zajema naslednje vrste opreme:
• slušno-monitorne sisteme;
• radijske mikrofone;
• brezžične večkanalske zvočne sisteme (WMAS);
• sisteme za vodene oglede.
General Information
Standards Content (Sample)
HARMONISED EUROPEAN STANDARD
Wireless Microphones;
Audio PMSE up to 3 GHz;
Part 1: Class A Receivers;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU
2 ETSI EN 300 422-1 V2.1.2 (2017-01)
Reference
REN/ERM-TG17-18-C1
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 à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2017.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP 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
3 ETSI EN 300 422-1 V2.1.2 (2017-01)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Executive summary . 8
Introduction . 8
1 Scope . 10
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 11
3 Definitions, symbols and abbreviations . 13
3.1 Definitions . 13
3.2 Symbols . 15
3.3 Abbreviations . 15
4 Technical requirements specifications . 16
4.1 Radio microphone . 16
4.2 In ear monitoring . 16
4.3 Tour Guide Systems . 17
4.4 Wireless Multichannel Audio Systems. 17
4.5 Environmental profile . 17
5 Testing for compliance with technical requirements . 18
5.1 Presentation of equipment for testing purposes . 18
5.1.1 Introduction. 18
5.1.2 Choice of model for testing . 18
5.1.3 Definitions of alignment and switching ranges . 19
5.1.4 Choice of frequencies . 19
5.1.5 Testing of single channel equipment . 19
5.1.6 Testing of two channel equipment . 19
5.1.7 Testing of multi-channel equipment (more than two channels) . 19
5.1.8 Testing of equipment without a permanent external RF port . 19
5.1.8.1 General . 19
5.1.8.2 Equipment with a permanent internal RF port . 19
5.1.8.3 Equipment with a temporary RF port . 20
5.2 Mechanical and electrical design . 20
5.2.1 General . 20
5.2.2 Physical Controls . 20
5.2.3 Performance testing with integral antenna . 20
6 Test conditions, power sources and ambient conditions . 20
6.1 Normal and extreme test conditions . 20
6.2 Test power source . 20
6.3 Normal test conditions . 21
6.3.1 Normal temperature and humidity . 21
6.3.2 Normal test power source voltage . 21
6.3.2.1 Mains voltage . 21
6.3.2.2 Other power sources . 21
6.4 Extreme test conditions . 21
6.4.1 Extreme temperatures . 21
6.4.1.1 General . 21
6.4.1.2 Procedures for tests at extreme temperatures . 21
6.4.2 Extreme test power source voltages . 22
6.4.2.1 Mains voltage . 22
6.4.2.2 Other power sources . 22
ETSI
4 ETSI EN 300 422-1 V2.1.2 (2017-01)
7 General conditions . 22
7.1 Normal test modulation . 22
7.1.1 Analogue systems . 22
7.1.2 Digital systems . 23
7.1.3 WMAS . 24
7.2 Artificial antenna . 24
7.2.1 General . 24
7.3 Test fixture . 24
7.3.1 General . 24
7.4 Test site and general arrangements for radiated measurements. 24
7.4.1 Introduction. 24
7.5 Modes of operation of the transmitter . 25
7.5.1 General . 25
7.6 Arrangement for test signals at the input of the transmitter . 25
7.6.1 General . 25
8 Methods of measurement and limits for transmitter parameters . 25
8.1 Frequency stability . 25
8.1.1 Method of measurement (analogue) . 25
8.1.2 Method of measurement (digital) . 25
8.1.3 Limit . 25
8.2 Rated output power . 26
8.2.1 Method of measurement for equipment without integral antenna . 26
8.2.2 Method of measurement for equipment with integral antenna. 26
8.2.2.1 Method of measurement under normal test conditions . 26
8.2.3 Limit . 26
8.3 Necessary bandwidth . 26
8.3.1 General . 26
8.3.2 Necessary Bandwidth (BN) for Analogue Systems . 27
8.3.2.1 Method of Measurement . 27
8.3.2.2 Limits . 28
8.3.3 Necessary Bandwidth (BN) for Digital Systems . 28
8.3.3.1 Method of Measurement . 28
8.3.3.2 Limits . 30
8.3.4 Necessary Bandwidth (BN) for WMAS . 31
8.3.4.1 Applicability. 31
8.3.4.2 Method of measurement . 31
8.3.4.3 Limits . 32
8.3.5 Bandwidth measurement procedure for PMSE operation in 2,4 GHz to 2,4835 GHz . 33
8.3.5.1 Applicability . 33
8.3.5.2 Definition . 33
8.3.5.3 Limits . 33
8.3.5.4 Conformance . 33
8.3.5.4.1 Test conditions . 33
8.3.5.4.2 Test method . 33
8.3.6 Transmitter Unwanted Emissions in the Out-of-band Domain Alternative Measurement Procedure . 34
8.3.6.1 Applicability . 34
8.3.6.2 Definition . 34
8.3.6.3 Limit . 34
8.3.6.4 Conformance . 35
8.3.6.4.1 Test conditions . 35
8.3.6.4.2 Test method . 35
8.4 Spurious emissions . 37
8.4.1 Definition . 37
8.4.2 Method of measurement . 37
8.4.3 Limits . 37
8.4.4 Measuring receiver . 37
8.5 Transmitter intermodulation distortion . 38
8.5.1 Definition . 38
8.5.2 Method of measurement . 38
8.5.3 Limits . 39
ETSI
5 ETSI EN 300 422-1 V2.1.2 (2017-01)
9 Receiver . 39
9.1 Spurious emissions . 39
9.1.1 Definitions . 39
9.1.2 Method of measuring the power level in a specified load. 40
9.1.3 Method of measuring the effective radiated power of the enclosure . 40
9.1.4 Method of measuring the effective radiated power . 40
9.1.5 Limits . 41
9.2 Receiver sensitivity . 41
9.2.1 Definition . 41
9.2.2 Method of measurement . 41
9.2.3 Limits . 42
9.3 Receiver adjacent channel selectivity . 42
9.3.1 Definition . 42
9.3.2 Method of measurement . 42
9.3.3 Limits . 43
9.4 Receiver blocking . 43
9.4.1 Definition . 43
9.4.2 Method of measurement . 43
9.4.3 Limits . 44
10 Measurement uncertainty . 44
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 45
Annex B (normative): Measurement of Necessary Bandwidth (B) for analogue systems . 46
B.1 Test configuration for measurement of the Necessary Bandwidth (B) for analogue systems . 46
Annex C (normative): Radiated measurement . 47
C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 47
C.1.1 General . 47
C.1.2 Anechoic chamber . 47
C.1.3 Anechoic chamber with a conductive ground plane . 48
C.1.4 Open Area Test Site (OATS) . 49
C.1.5 Test antenna . 50
C.1.6 Substitution antenna . 50
C.1.7 Measuring antenna . 51
C.1.8 Stripline arrangement . 51
C.1.8.1 General . 51
C.1.8.2 Description . 51
C.1.8.3 Calibration . 51
C.1.8.4 Mode of use . 51
C.2 Guidance on the use of radiation test sites . 51
C.2.1 General . 51
C.2.2 Verification of the test site . 51
C.2.3 Preparation of the DUT . 52
C.2.4 Power supplies to the DUT. 52
C.2.5 Volume control setting for analogue speech tests . 52
C.2.6 Range length . 52
C.2.7 Site preparation . 53
C.3 Coupling of signals . 53
C.3.1 General . 53
C.3.2 Data signals . 53
C.3.3 Speech and analogue signals . 54
C.3.3.0 General . 54
C.3.3.1 Acoustic coupler description. 54
C.3.3.2 Calibration . 54
C.4 Standard test position . 54
ETSI
6 ETSI EN 300 422-1 V2.1.2 (2017-01)
C.5 Test fixture . 55
C.5.1 General . 55
C.5.2 Description . 55
C.5.3 Calibration . 56
C.5.4 Mode of use . 56
Annex D (informative): Additional receiver parameters identified under article 3.2 of
Directive 2014/53/EU . 57
Annex E (informative): Application form for wireless microphone testing . 58
E.1 Introduction . 58
E.1.1 Description . 58
E.1.2 Notice . 58
E.2 Transmitter intermodulation distortion. 58
E.2.1 General . 58
E.2.2 Definition . 58
E.2.3 Method of measurement . 58
E.2.4 Limits . 58
E.2.5 Settings and results . 58
E.3 Receiver Sensitivity . 59
E.3.1 General . 59
E.3.2 Definition . 59
E.3.3 Method of measurement . 59
E.3.4 Limits . 59
E.3.5 Settings and results . 59
E.4 Receiver Adjacent Channel Power Selectivity . 60
E.4.1 General . 60
E.4.2 Definition . 60
E.4.3 Method of measurement . 60
E.4.4 Limits . 60
E.4.5 Settings and results . 60
E.5 Receiver blocking . 61
E.5.1 General . 61
E.5.2 Definition . 61
E.5.3 Method of measurement . 61
E.5.4 Limits . 61
E.5.5 Settings and results . 61
Annex F (informative): Bibliography . 62
Annex G (informative): Change History . 63
History . 64
ETSI
7 ETSI EN 300 422-1 V2.1.2 (2017-01)
Intellectual Property Rights
IPRs essential or potentially 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 Essential, 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
can 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 European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and
Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.18] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.14].
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 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 1 of a multi-part deliverable covering Wireless Microphones, Audio PMSE, and ALDs up
to 3 GHz, as identified below:
Part 1: "Class A Receivers; Harmonised Standard covering the essential requirements of article 3.2 of
Directive 2014/53/EU";
Part 2: "Class B Receivers; Harmonised Standard covering the essential requirements of article 3.2 of
Directive 2014/53/EU";
Part 3: "Class C Receivers; Harmonised Standard covering the essential requirements of article 3.2 of
Directive 2014/53/EU";
Part 4: "Wireless Microphones; Audio PMSE up to 3 GHz; Part 4: Assistive Listening Devices including
personal sound amplifiers and inductive systems up to 3 GHz; Harmonised Standard covering the
essential requirements of article 3.2 of Directive 2014/53/EU".
National transposition dates
Date of latest announcement of this EN (doa): 30 April 2017
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 October 2017
Date of withdrawal of any conflicting National Standard (dow): 31 October 2018
ETSI
8 ETSI EN 300 422-1 V2.1.2 (2017-01)
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
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Executive summary
With the introduction of Directive 2014/53/EU [i.14], the present multi-part deliverable has been reformatted into
multiple parts to accommodate the different types of equipment represented, i.e. different receivers for audio
Programme Making and Special Events (PMSE) and Assistive Listening Devices (ALD). Part 1 covers Class A
receivers.
The present document seeks to improve spectrum efficiency and has introduced new technology to assist 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 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.15].
Introduction
With the introduction of Directive 2014/53/EU [i.14], receiver parameters are now included and the removal of the
9 kHz lower limit has brought inductive loop systems and receivers into the present document. Inductive loop
transmitters are covered within ETSI EN 303 340 [i.19] along with test receivers; hearing aids containing inductive loop
receivers (often referred to as T coil) are now covered in the present document. 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 interfacing equipment.
ETSI EN 300 422 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 regime in a clear and concise manner. After a number of discussions the
present document covers audio PMSE as Parts 2 [i.20], and 3 [i.21], and ALDs as Part 4 [i.22].
Systems including assistive listening devices (Aids for the handicapped) with digital modulations and operating in the
range 863 MHz to 865 MHz may be tested to either the present document or to ETSI EN 301 357 [i.1] with due
consideration of power and operating frequency.
Ear worn hearing assistance devices 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.
Since the initial adoption of ETSI I-ETS 300 422 [i.2] there has been the introduction of further types of equipment into
the market - cordless headphones/loudspeakers, Low power Band II and consumer in-ear monitoring. These are low
power wideband systems that have some characteristics in common with radio microphones but are not compatible with
multichannel radio microphones. This equipment is covered by ETSI EN 301 357 [i.1] and annex 10 of
CEPT/ERC/REC 70-03 [i.7].
ETSI
9 ETSI EN 300 422-1 V2.1.2 (2017-01)
Additional standards or specifications may be required for equipment:
1) intended to interface to Public Networks, e.g. PSTN. This facility may be subjected to regulatory conditions;
or
2) other relevant radio standards.
ETSI
10 ETSI EN 300 422-1 V2.1.2 (2017-01)
1 Scope
The present document covers the minimum characteristics considered necessary in order to make the best use of the
available frequency spectrum for audio PMSE and ALDs.
The present document specifies the minimum performance requirements and the methods of measurement of Assistive
Listening Devices, radio microphones and in-ear monitoring systems. It does not necessarily include all the
characteristics that may be required by a user, nor does it necessarily represent the optimum performance achievable.
The present document applies to equipment operating on radio frequencies up to 3 GHz (as shown in table 1) using
analogue, digital and hybrid (using both analogue and digital) modulation.
The maximum power recommended for equipment covered by the present document is 250 mW for radio microphones
and 10 mW for ALDs.
An exception to this are the Public Hearing Aids defined in the CEPT Report 004 [i.8] and subsequent ECC [i.10] and
EC Decisions [i.9] on the ex ERMES band (169,4 MHz to 169,8125 MHz) where 500 mW is defined.
The present document also covers radio microphones used in the 863 MHz to 865 MHz band, with a maximum power
of 10 mW.
Electromagnetic Compatibility (EMC) requirements are covered by ETSI EN 301 489-9 [i.4].
National regulations on:
1) maximum power output;
2) licensing status;
will take precedence or those detailed in the latest version of:
• EC Decision 2005/928/EC [i.10];
• ECC/DEC/(05)02 [i.11];
• the EC SRD Decision [i.9]; or
• CEPT/ERC/REC 70-03 [i.7], annex 10 (see http://www.erodocdb.dk/);
• EC Decision 2014/641/EU [i.13].
Unless otherwise stated in the EC SRD Decision, ECC Decision or National Interfaces, Radio Microphones can be
subject to individual licence.
The types of equipment covered by the present document are as follows:
• in ear monitoring systems;
• radio microphones;
• WMAS (Wireless Multichannel Audio Systems);
• tour guide systems.
Table 1: Radiocommunications service frequency bands
Radiocommunications service frequency bands
Transmit up to 3 000 MHz
Receive up to 3 000 MHz
ETSI
11 ETSI EN 300 422-1 V2.1.2 (2017-01)
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.(8Wireless Microphones - Audio PMSE up to 3 GHz - Part 1: Class A Receivers - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU33.160.50PriborAccessoriesICS:Ta slovenski standard je istoveten z:ETSI EN 300 422-1 V2.1.2 (2017-01)SIST EN 300 422-1 V2.1.2:2017en01-marec-2017SIST EN 300 422-1 V2.1.2:2017SLOVENSKI
STANDARD
HARMONISED EUROPEAN STANDARD SIST EN 300 422-1 V2.1.2:2017
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 2
Reference REN/ERM-TG17-18-C1 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 à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88
Important notice The present document can be downloaded from: http://www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2017. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of 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. SIST EN 300 422-1 V2.1.2:2017
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 3 Contents Intellectual Property Rights . 7 Foreword . 7 Modal verbs terminology . 8 Executive summary . 8 Introduction . 8 1 Scope . 10 2 References . 11 2.1 Normative references . 11 2.2 Informative references . 11 3 Definitions, symbols and abbreviations . 13 3.1 Definitions . 13 3.2 Symbols . 15 3.3 Abbreviations . 15 4 Technical requirements specifications . 16 4.1 Radio microphone . 16 4.2 In ear monitoring . 16 4.3 Tour Guide Systems . 17 4.4 Wireless Multichannel Audio Systems. 17 4.5 Environmental profile . 17 5 Testing for compliance with technical requirements . 18 5.1 Presentation of equipment for testing purposes . 18 5.1.1 Introduction. 18 5.1.2 Choice of model for testing . 18 5.1.3 Definitions of alignment and switching ranges . 19 5.1.4 Choice of frequencies . 19 5.1.5 Testing of single channel equipment . 19 5.1.6 Testing of two channel equipment . 19 5.1.7 Testing of multi-channel equipment (more than two channels) . 19 5.1.8 Testing of equipment without a permanent external RF port . 19 5.1.8.1 General . 19 5.1.8.2 Equipment with a permanent internal RF port . 19 5.1.8.3 Equipment with a temporary RF port . 20 5.2 Mechanical and electrical design . 20 5.2.1 General . 20 5.2.2 Physical Controls . 20 5.2.3 Performance testing with integral antenna . 20 6 Test conditions, power sources and ambient conditions . 20 6.1 Normal and extreme test conditions . 20 6.2 Test power source . 20 6.3 Normal test conditions . 21 6.3.1 Normal temperature and humidity . 21 6.3.2 Normal test power source voltage . 21 6.3.2.1 Mains voltage . 21 6.3.2.2 Other power sources . 21 6.4 Extreme test conditions . 21 6.4.1 Extreme temperatures . 21 6.4.1.1 General . 21 6.4.1.2 Procedures for tests at extreme temperatures . 21 6.4.2 Extreme test power source voltages . 22 6.4.2.1 Mains voltage . 22 6.4.2.2 Other power sources . 22 SIST EN 300 422-1 V2.1.2:2017
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 4 7 General conditions . 22 7.1 Normal test modulation . 22 7.1.1 Analogue systems . 22 7.1.2 Digital systems . 23 7.1.3 WMAS . 24 7.2 Artificial antenna . 24 7.2.1 General . 24 7.3 Test fixture . 24 7.3.1 General . 24 7.4 Test site and general arrangements for radiated measurements. 24 7.4.1 Introduction. 24 7.5 Modes of operation of the transmitter . 25 7.5.1 General . 25 7.6 Arrangement for test signals at the input of the transmitter . 25 7.6.1 General . 25 8 Methods of measurement and limits for transmitter parameters . 25 8.1 Frequency stability . 25 8.1.1 Method of measurement (analogue) . 25 8.1.2 Method of measurement (digital) . 25 8.1.3 Limit . 25 8.2 Rated output power . 26 8.2.1 Method of measurement for equipment without integral antenna . 26 8.2.2 Method of measurement for equipment with integral antenna. 26 8.2.2.1 Method of measurement under normal test conditions . 26 8.2.3 Limit . 26 8.3 Necessary bandwidth . 26 8.3.1 General . 26 8.3.2 Necessary Bandwidth (BN) for Analogue Systems . 27 8.3.2.1 Method of Measurement . 27 8.3.2.2 Limits . 28 8.3.3 Necessary Bandwidth (BN) for Digital Systems . 28 8.3.3.1 Method of Measurement . 28 8.3.3.2 Limits . 30 8.3.4 Necessary Bandwidth (BN) for WMAS . 31 8.3.4.1 Applicability. 31 8.3.4.2 Method of measurement . 31 8.3.4.3 Limits . 32 8.3.5 Bandwidth measurement procedure for PMSE operation in 2,4 GHz to 2,4835 GHz . 33 8.3.5.1 Applicability . 33 8.3.5.2 Definition . 33 8.3.5.3 Limits . 33 8.3.5.4 Conformance . 33 8.3.5.4.1 Test conditions . 33 8.3.5.4.2 Test method . 33 8.3.6 Transmitter Unwanted Emissions in the Out-of-band Domain Alternative Measurement Procedure . 34 8.3.6.1 Applicability . 34 8.3.6.2 Definition . 34 8.3.6.3 Limit . 34 8.3.6.4 Conformance . 35 8.3.6.4.1 Test conditions . 35 8.3.6.4.2 Test method . 35 8.4 Spurious emissions . 37 8.4.1 Definition . 37 8.4.2 Method of measurement . 37 8.4.3 Limits . 37 8.4.4 Measuring receiver . 37 8.5 Transmitter intermodulation distortion . 38 8.5.1 Definition . 38 8.5.2 Method of measurement . 38 8.5.3 Limits . 39 SIST EN 300 422-1 V2.1.2:2017
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 5 9 Receiver . 39 9.1 Spurious emissions . 39 9.1.1 Definitions . 39 9.1.2 Method of measuring the power level in a specified load. 40 9.1.3 Method of measuring the effective radiated power of the enclosure . 40 9.1.4 Method of measuring the effective radiated power . 40 9.1.5 Limits . 41 9.2 Receiver sensitivity . 41 9.2.1 Definition . 41 9.2.2 Method of measurement . 41 9.2.3 Limits . 42 9.3 Receiver adjacent channel selectivity . 42 9.3.1 Definition . 42 9.3.2 Method of measurement . 42 9.3.3 Limits . 43 9.4 Receiver blocking . 43 9.4.1 Definition . 43 9.4.2 Method of measurement . 43 9.4.3 Limits . 44 10 Measurement uncertainty . 44 Annex A (informative): Relationship between the present document and the essential requirements of Directive 2014/53/EU . 45 Annex B (normative): Measurement of Necessary Bandwidth (B) for analogue systems . 46 B.1 Test configuration for measurement of the Necessary Bandwidth (B) for analogue systems . 46 Annex C (normative): Radiated measurement . 47 C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 47 C.1.1 General . 47 C.1.2 Anechoic chamber . 47 C.1.3 Anechoic chamber with a conductive ground plane . 48 C.1.4 Open Area Test Site (OATS) . 49 C.1.5 Test antenna . 50 C.1.6 Substitution antenna . 50 C.1.7 Measuring antenna . 51 C.1.8 Stripline arrangement . 51 C.1.8.1 General . 51 C.1.8.2 Description . 51 C.1.8.3 Calibration . 51 C.1.8.4 Mode of use . 51 C.2 Guidance on the use of radiation test sites . 51 C.2.1 General . 51 C.2.2 Verification of the test site . 51 C.2.3 Preparation of the DUT . 52 C.2.4 Power supplies to the DUT. 52 C.2.5 Volume control setting for analogue speech tests . 52 C.2.6 Range length . 52 C.2.7 Site preparation . 53 C.3 Coupling of signals . 53 C.3.1 General . 53 C.3.2 Data signals . 53 C.3.3 Speech and analogue signals . 54 C.3.3.0 General . 54 C.3.3.1 Acoustic coupler description. 54 C.3.3.2 Calibration . 54 C.4 Standard test position . 54 SIST EN 300 422-1 V2.1.2:2017
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 6 C.5 Test fixture . 55 C.5.1 General . 55 C.5.2 Description . 55 C.5.3 Calibration . 56 C.5.4 Mode of use . 56 Annex D (informative): Additional receiver parameters identified under article 3.2 of Directive 2014/53/EU . 57 Annex E (informative): Application form for wireless microphone testing . 58 E.1 Introduction . 58 E.1.1 Description . 58 E.1.2 Notice . 58 E.2 Transmitter intermodulation distortion. 58 E.2.1 General . 58 E.2.2 Definition . 58 E.2.3 Method of measurement . 58 E.2.4 Limits . 58 E.2.5 Settings and results . 58 E.3 Receiver Sensitivity . 59 E.3.1 General . 59 E.3.2 Definition . 59 E.3.3 Method of measurement . 59 E.3.4 Limits . 59 E.3.5 Settings and results . 59 E.4 Receiver Adjacent Channel Power Selectivity . 60 E.4.1 General . 60 E.4.2 Definition . 60 E.4.3 Method of measurement . 60 E.4.4 Limits . 60 E.4.5 Settings and results . 60 E.5 Receiver blocking . 61 E.5.1 General . 61 E.5.2 Definition . 61 E.5.3 Method of measurement . 61 E.5.4 Limits . 61 E.5.5 Settings and results . 61 Annex F (informative): Bibliography . 62 Annex G (informative): Change History . 63 History . 64
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 7 Intellectual Property Rights IPRs essential or potentially 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 Essential, 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 can 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 European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.18] to provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC [i.14]. 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 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 1 of a multi-part deliverable covering Wireless Microphones, Audio PMSE, and ALDs up to 3 GHz, as identified below: Part 1: "Class A Receivers; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU"; Part 2: "Class B Receivers; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU"; Part 3: "Class C Receivers; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU"; Part 4: "Wireless Microphones; Audio PMSE up to 3 GHz; Part 4: Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU".
National transposition dates Date of latest announcement of this EN (doa): 30 April 2017 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2017 Date of withdrawal of any conflicting National Standard (dow): 31 October 2018
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 8 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 provisions). "must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation. Executive summary With the introduction of Directive 2014/53/EU [i.14], the present multi-part deliverable has been reformatted into multiple parts to accommodate the different types of equipment represented, i.e. different receivers for audio Programme Making and Special Events (PMSE) and Assistive Listening Devices (ALD). Part 1 covers Class A receivers. The present document seeks to improve spectrum efficiency and has introduced new technology to assist 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 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.15]. Introduction With the introduction of Directive 2014/53/EU [i.14], receiver parameters are now included and the removal of the 9 kHz lower limit has brought inductive loop systems and receivers into the present document. Inductive loop transmitters are covered within ETSI EN 303 340 [i.19] along with test receivers; hearing aids containing inductive loop receivers (often referred to as T coil) are now covered in the present document. 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 interfacing equipment. ETSI EN 300 422 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 regime in a clear and concise manner. After a number of discussions the present document covers audio PMSE as Parts 2 [i.20], and 3 [i.21], and ALDs as Part 4 [i.22]. Systems including assistive listening devices (Aids for the handicapped) with digital modulations and operating in the range 863 MHz to 865 MHz may be tested to either the present document or to ETSI EN 301 357 [i.1] with due consideration of power and operating frequency. Ear worn hearing assistance devices 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. Since the initial adoption of ETSI I-ETS 300 422 [i.2] there has been the introduction of further types of equipment into the market - cordless headphones/loudspeakers, Low power Band II and consumer in-ear monitoring. These are low power wideband systems that have some characteristics in common with radio microphones but are not compatible with multichannel radio microphones. This equipment is covered by ETSI EN 301 357 [i.1] and annex 10 of CEPT/ERC/REC 70-03 [i.7]. SIST EN 300 422-1 V2.1.2:2017
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 9 Additional standards or specifications may be required for equipment: 1) intended to interface to Public Networks, e.g. PSTN. This facility may be subjected to regulatory conditions; or 2) other relevant radio standards.
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 10 1 Scope The present document covers the minimum characteristics considered necessary in order to make the best use of the available frequency spectrum for audio PMSE and ALDs. The present document specifies the minimum performance requirements and the methods of measurement of Assistive Listening Devices, radio microphones and in-ear monitoring systems. It does not necessarily include all the characteristics that may be required by a user, nor does it necessarily represent the optimum performance achievable. The present document applies to equipment operating on radio frequencies up to 3 GHz (as shown in table 1) using analogue, digital and hybrid (using both analogue and digital) modulation. The maximum power recommended for equipment covered by the present document is 250 mW for radio microphones and 10 mW for ALDs. An exception to this are the Public Hearing Aids defined in the CEPT Report 004 [i.8] and subsequent ECC [i.10] and EC Decisions [i.9] on the ex ERMES band (169,4 MHz to 169,8125 MHz) where 500 mW is defined. The present document also covers radio microphones used in the 863 MHz to 865 MHz band, with a maximum power of 10 mW. Electromagnetic Compatibility (EMC) requirements are covered by ETSI EN 301 489-9 [i.4]. National regulations on: 1) maximum power output; 2) licensing status; will take precedence or those detailed in the latest version of: • EC Decision 2005/928/EC [i.10]; • ECC/DEC/(05)02 [i.11]; • the EC SRD Decision [i.9]; or • CEPT/ERC/REC 70-03 [i.7], annex 10 (see http://www.erodocdb.dk/); • EC Decision 2014/641/EU [i.13]. Unless otherwise stated in the EC SRD Decision, ECC Decision or National Interfaces, Radio Microphones can be subject to individual licence. The types of equipment covered by the present document are as follows: • in ear monitoring systems; • radio microphones; • WMAS (Wireless Multichannel Audio Systems); • tour guide systems. Table 1: Radiocommunications service frequency bands
Radiocommunications service frequency bands Transmit
up to 3 000 MHz Receive
up to 3 000 MHz
ETSI ETSI EN 300 422-1 V2.1.2 (2017-01) 11 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...