SIST EN 300 422-1 V2.2.1:2022

• Abstract:

  The present document specifies technical characteristics and methods of measurements for audio PMSE equipment operating with up to 250 mW output power on radio frequencies up to 3 GHz (see note 1). NOTE 1: For RF power levels above this, refer to ETSI EN 300 454-1 [i.3]. Audio Programme Making and Special Events (PMSE) equipment within the scope of the present document is used in wireless applications for audio transmission purposes including, but not limited to equipment such as wireless microphones, in-ear monitoring systems, conference systems, talkback systems, tour guide systems, Cognitive PMSE (C-PMSE), Wireless Multichannel Audio Systems (WMAS), and assistive listening devices.

• Status: Published
• Public Enquiry End Date: 17-Nov-2021
• Publication Date: 06-Dec-2021
• ICS: 33.160.50 - Accessories
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Nov-2021
• Due Date: 03-Feb-2022
• Completion Date: 07-Dec-2021
• Directive: 2005-01-1864 - Pravilnik o radijskih frekvencah, ki se smejo uporabljati brez odločbe o dodelitvi radijskih frekvenc
• Directive:

  ---

  2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 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
  OJ Ref: L 289 OJ Date: 10-Nov-2022
• Ref Project: ETSI EN 300 422-1 V2.2.1 (2021-11) - Wireless Microphones; Audio PMSE up to 3 GHz; Part 1: Audio PMSE Equipment up to 3 GHz; Harmonised Standard for access to radio spectrum

Overview

SIST EN 300 422-1 V2.2.1:2022 is a harmonized European standard developed by SIST, identical to ETSI EN 300 422-1 V2.2.1. It specifies the essential technical requirements and test methods for Audio Programme Making and Special Events (Audio PMSE) equipment operating with up to 250 mW output power on radio frequencies up to 3 GHz. This standard supports access to radio spectrum for wireless audio applications, helping to ensure electromagnetic compatibility and efficient spectrum use across Europe.

Wireless audio PMSE equipment covered by this standard includes wireless microphones, in-ear monitoring systems, conference and talkback systems, tour guide equipment, Cognitive PMSE (C-PMSE), Wireless Multichannel Audio Systems (WMAS), and assistive listening devices. These technologies play a vital role in broadcasting, live events, and professional audio environments.

Key Topics

The main areas addressed in SIST EN 300 422-1 V2.2.1:2022 include:

• Technical characteristics of audio PMSE devices, such as transmitter power, frequency stability, unwanted emissions, and intermodulation attenuation.
• Receiver performance requirements, including sensitivity, adjacent channel selectivity, and blocking.
• Test methods to verify compliance with the specified technical requirements under normal and extreme conditions.
• Conformance assessment to ensure equipment meets harmonized standards for placing on the European market in line with Directive 2014/53/EU (Radio Equipment Directive).
• Spectrum use and licensing: Guidance on the applicable spectrum, licensing obligations, and compatibility with regulatory frameworks.

Applications

Compliance with SIST EN 300 422-1 V2.2.1:2022 is crucial for manufacturers and users of audio PMSE equipment targeting European markets. Typical applications include:

• Broadcasting and live events: Reliable wireless audio links for microphones and communication systems used in theatres, concerts, TV studios, and sporting events.
• Conference and public speaking: Conference systems and tour guide audio transmitters, ensuring clear communication in meetings and guided tours.
• Assistive listening: Devices supporting people with hearing impairments in public venues.
• Professional audio production: Multichannel wireless setups in studios and remote production settings.
• Cognitive PMSE (C-PMSE): Adaptive wireless systems employing dynamic spectrum access for increased efficiency.

By meeting the standard’s requirements, equipment ensures optimal performance, reduces interference, and aligns with spectrum management strategies throughout Europe.

Related Standards

For complete regulatory compliance and optimized performance, consider these related standards:

• ETSI EN 300 422-1: The base European norm upon which SIST EN 300 422-1 is identical.
• ETSI EN 300 454-1: Reference for RF power levels above 250 mW.
• CE Marking and Radio Equipment Directive (RED) 2014/53/EU: Legal framework for radio equipment in the EU.
• CEPT/ERC Recommendation 70-03: Frequency allocation and harmonized spectrum use for short range devices.
• EC Decision on Short Range Devices: Regulatory spectrum decisions impacting PMSE.
• ECC Report 204: Additional information and guidance on PMSE spectrum use.
• National Interface Regulations: Local rules that may apply in addition to harmonized European standards.

By adhering to SIST EN 300 422-1 V2.2.1:2022 and related documents, manufacturers and users can ensure efficient, compliant, and interference-free operation of wireless audio systems up to 3 GHz. This advances reliable programme making and special events across the European market.

Draft ETSI EN 300 422-1 V2.2.1 (2021-08)

HARMONISED EUROPEAN STANDARD
Wireless Microphones;
Audio PMSE Equipment up to 3 GHz;
Part 1: Audio PMSE Equipment up to 3 GHz;
Harmonised Standard for access to radio spectrum

2 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)

Reference
REN/ERM-TG17-157
Keywords
audio, audio-PMSE, C-PMSE, harmonised
standard, radio, testing, wireless microphone,
wireless microphone system
ETSI
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All rights reserved.
ETSI
3 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Executive summary . 8
Introduction . 8
1 Scope . 10
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 12
3.1 Terms . 12
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 16
4.2.1 Transmitter RF Output Power . 16
4.2.1.1 Definition . 16
4.2.1.2 Limit . 16
4.2.1.3 Conformance . 16
4.2.2 Transmitter Frequency Stability . 16
4.2.2.1 General . 16
4.2.2.2 Definition . 16
4.2.2.3 Limits . 16
4.2.2.4 Conformance . 16
4.2.3 Declared Channel Bandwidth and Occupied Channel Bandwidth . 17
4.2.3.1 Definitions . 17
4.2.3.2 Limits . 17
4.2.3.3 Conformance . 17
4.2.4 Transmitter unwanted emissions . 18
4.2.4.1 Transmitter unwanted emissions in the spurious domain . 18
4.2.4.1.1 Definition. 18
4.2.4.1.2 Limits . 18
4.2.4.1.3 Conformance . 19
4.2.4.2 Transmitter unwanted emissions in the out of band domain . 19
4.2.4.2.1 Definition. 19
4.2.4.2.2 Limits . 19
4.2.4.2.3 Conformance . 21
4.2.5 Transmitter intermodulation attenuation . 21
4.2.5.1 Definitions . 21
4.2.5.2 Limits . 21
4.2.5.3 Conformance . 21
4.3 Conformance requirements for receivers . 21
4.3.1 Minimum performance criterion . 21
4.3.2 Receiver sensitivity . 21
4.3.2.1 Definition . 21
4.3.2.2 Limit . 22
4.3.2.3 Conformance . 22
4.3.3 Receiver adjacent channel selectivity . 22
4.3.3.1 Definition . 22
4.3.3.2 Limit . 22
4.3.3.3 Conformance . 23
4.3.4 Receiver blocking . 23
ETSI
4 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
4.3.4.1 Definition . 23
4.3.4.2 Limit . 23
4.3.4.3 Conformance . 23
4.3.5 Receiver unwanted emissions in the spurious domain . 23
4.3.5.1 Definition . 23
4.3.5.2 Limit . 24
4.3.5.3 Conformance . 24
5 Testing for compliance with technical requirements . 24
5.1 Environmental conditions for testing . 24
5.1.1 Introduction. 24
5.1.2 Normal test conditions . 24
5.1.2.1 Normal temperature and humidity . 24
5.1.2.2 Normal power source . 24
5.1.3 Extreme test conditions . 24
5.2 Interpretation of the measurement results . 25
5.3 Definition of other test conditions . 25
5.3.1 Product information for testing . 25
5.3.2 Test signals . 26
5.3.2.1 Audio test signal generation for equipment employing analogue modulation techniques . 26
5.3.2.2 Audio test signal generation for equipment employing digital modulation techniques including
WMAS . 27
5.3.2.3 Wanted signal . 28
5.3.2.4 Unwanted signal . 28
5.3.2.5 Test signal for non-continuous transmitters . 28
5.3.3 Test setup . 28
5.3.4 Test operational modes . 29
5.3.4.1 Receiver operational mode . 29
5.3.4.2 Rx Diversity . 29
5.3.5 Antennas . 29
5.3.5.1 Integrated and dedicated antennas . 29
5.3.6 Presentation of equipment . 29
5.3.7 Conducted measurements, radiated measurements, relative measurements . 29
5.4 Method of measurement for transmitters . 29
5.4.1 Transmitter RF power . 29
5.4.1.1 Test conditions . 29
5.4.1.2 Test method . 30
5.4.1.2.1 Conducted measurement. 30
5.4.1.2.2 Radiated measurement . 30
5.4.2 Transmitter frequency stability . 30
5.4.2.1 Test conditions . 30
5.4.2.2 Test method . 30
5.4.2.2.1 Conducted measurement. 30
5.4.2.2.2 Radiated measurement . 31
5.4.3 Transmitter unwanted emissions in the out of band domain and occupied channel bandwidth . 31
5.4.3.1 Test conditions . 31
5.4.3.2 Test method . 31
5.4.3.2.1 Conducted measurement. 31
5.4.3.2.2 Radiated measurement . 33
5.4.4 Transmitter unwanted emissions in the spurious domain . 33
5.4.4.1 Test conditions . 33
5.4.4.2 Test method . 33
5.4.4.2.1 Segmentation in smaller frequency bands . 33
5.4.4.2.2 Conducted measurement. 33
5.4.4.2.3 Radiated measurement . 34
5.4.5 Transmitter intermodulation attenuation . 34
5.4.5.1 Test conditions . 34
5.4.5.2 Test method . 35
5.4.5.2.1 Conducted measurement. 35
5.4.5.2.2 Radiated measurement . 37
5.5 Method of measurement for receivers . 37
5.5.1 Receiver sensitivity . 37
ETSI
5 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
5.5.1.1 Test conditions . 37
5.5.1.2 Test method . 37
5.5.1.2.1 Conducted measurement. 37
5.5.1.2.2 Radiated measurement . 38
5.5.2 Receiver adjacent channel selectivity . 38
5.5.2.1 Test conditions . 38
5.5.2.2 Test method . 38
5.5.2.2.1 Conducted measurement. 38
5.5.2.2.2 Radiated measurement . 39
5.5.3 Receiver blocking . 39
5.5.3.1 Test conditions . 39
5.5.3.2 Test method . 40
5.5.3.2.1 Conducted measurement. 40
5.5.3.2.2 Radiated measurement . 40
5.5.4 Receiver unwanted emissions in the spurious domain . 41
5.5.4.1 Test conditions . 41
5.5.4.2 Test method . 41
5.5.4.2.1 Segmentation in smaller frequency bands . 41
5.5.4.2.2 Conducted measurement. 41
5.5.4.2.3 Radiated measurement . 43
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 44
Annex B (informative): Maximum measurement uncertainty . 46
Annex C (informative): Measurement of Occupied Channel Bandwidth for analogue
equipment . 47
C.1 Test configuration for measurement of the Occupied Channel Bandwidth for analogue equipment. 47
Annex D (normative): Radiated measurement . 48
D.1 Test sites and general arrangements for measurements involving the use of radiated fields . 48
D.1.1 General . 48
D.1.2 Anechoic chamber . 48
D.1.3 Anechoic chamber with a conductive ground plane . 49
D.1.4 Open Area Test Site (OATS) . 50
D.1.5 Test antenna . 51
D.1.6 Substitution antenna . 51
D.1.7 Measuring antenna . 52
D.1.8 Stripline arrangement . 52
D.1.8.1 General . 52
D.1.8.2 Description . 52
D.1.8.3 Calibration . 52
D.1.8.4 Mode of use . 52
D.2 Guidance on the use of radiation test sites . 52
D.2.1 General . 52
D.2.2 Verification of the test site . 52
D.2.3 Preparation of the DUT . 53
D.2.4 Power supplies to the DUT. 53
D.2.5 Volume control setting for analogue speech tests . 53
D.2.6 Range length . 53
D.2.7 Site preparation . 54
D.3 Coupling of signals . 54
D.3.1 General . 54
D.3.2 Data signals . 54
D.3.3 Speech and analogue signals . 55
D.3.3.0 General . 55
D.3.3.1 Acoustic coupler description. 55
D.3.3.2 Calibration . 55
ETSI
6 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
D.4 Standard test position . 55
D.5 Test fixture . 56
D.5.1 General . 56
D.5.2 Description . 56
D.5.3 Calibration . 57
D.5.4 Mode of use . 57
Annex E (informative): Additional parameters identified under article 3.2 of Directive
2014/53/EU . 58
Annex F (informative): Change history . 59
History . 60

ETSI
7 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are 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 Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
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.
Trademarks
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
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Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
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Foreword
This draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote
phase of the ETSI standards EN Approval Procedure.
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.10].
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 Equipment up
to 3 GHz, as identified below:
Part 1: "Audio PMSE Equipment up to 3 GHz";
Part 2: "Class B Receivers" (see note);
Part 3: "Class C Receivers"(see note);
Part 4: "Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz".
NOTE: Since the present document now covers Class A, B, and C receivers for audio PMSE, ETSI EN 300 422-2
and ETSI EN 300 422-3 will no longer be maintained.

ETSI
8 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

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
This update includes changes requested by the EC for terminology in Harmonised Standards in addition to changes of
the technical requirements.
Introduction
Audio Programme Making and Special Events (Audio PMSE) equipment up to 3 GHz are used in wireless applications
for audio transmission purposes.
Following publication by ETSI of version 2.1.2 of ETSI EN 300 422-1 and its subsequent publication in the Official
Journal, the present document has been revised with information gained from those using that version. The previous
four-parts deliverable has been reformatted into two parts to accommodate the different types of equipment represented.
The present document (Part 1) now covers Class A, B, and C receivers for audio PMSE. To avoid confusion, the
numbering for ETSI EN 300 422-4 [i.4] (ALDs) has been retained.
Spectrum, power limits, and technical requirements for audio PMSE are shown in the latest version of:
• EC Decision on Short Range Devices [i.14];
• CEPT/ERC Recommendation 70-03 [i.12], annex 10;
• National Interface regulations; and
• compatibility studies.
Further information is given in CEPT/ERC Recommendation 25-10 [i.13], annexes 2 and 4. Further information is
available via the ECO website:
https://cept.org/ecc/topics/programme-making-and-special-events-applications-pmse
and the EFIS database:
https://efis.cept.org/.
Unless otherwise stated in the EC SRD Decision [i.14], EC Decision 2014/641/EU [i.11] or national regulations, the use
of audio PMSE equipment can be subject to an individual licensing regime.
Although the present document covers a spectrum up to 3 GHz, it should be emphasized that multi-channel audio
PMSE systems used in professional productions are best suited to a spectrum under 2 GHz for reasons of propagation
and body interaction. Further information on audio PMSE is available in ECC Report 204 [i.16].
ETSI
9 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
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 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
1 Scope
The present document specifies technical characteristics and methods of measurements for audio PMSE equipment
operating with up to 250 mW output power on radio frequencies up to 3 GHz (see note 1).
NOTE 1: For RF power levels above this, refer to ETSI EN 300 454-1 [i.3].
Audio Programme Making and Special Events (PMSE) equipment within the scope of the present document is used in
wireless applications for audio transmission purposes including, but not limited to equipment such as wireless
microphones, in-ear monitoring systems, conference systems, talkback systems, tour guide systems, Cognitive PMSE
(C-PMSE), Wireless Multichannel Audio Systems (WMAS), and assistive listening devices.
Table 1: Radiocommunications service frequency bands
Radiocommunications service frequency bands
Transmit up to 3 000 MHz
Receive up to 3 000 MHz
NOTE 2: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.10] is given in annex A.
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 included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] IEC 60244-13:1991: "Methods of measurement for radio transmitters - Part 13: Performance
characteristics for FM sound broadcasting".
[2] ERC Recommendation 74-01 (May 2019): "Unwanted emissions in the spurious domain".
2.2 Informative 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.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336: "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] Void.
ETSI
11 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
[i.3] ETSI EN 300 454-1: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Wide
band audio links; Part 1: Technical characteristics and test methods".
[i.4] ETSI EN 300 422-4: "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".
[i.5] Void.
[i.6] ETSI EG 203 367 (V1.1.1): "Guide to the application of harmonised standards covering
articles 3.1b and 3.2 of the Directive 2014/53/EU (RED) to multi-radio and combined radio and
non-radio equipment".
[i.7] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[i.8] ETSI EN 301 489-9: "ElectroMagnetic Compatibility (EMC) standard for radio equipment and
services; Part 9: Specific conditions for wireless microphones, similar Radio Frequency (RF)
audio link equipment, cordless audio and in-ear monitoring devices; Harmonised Standard
covering the essential requirements of article 3.1(b) of Directive 2014/53/EU".
[i.9] Void.
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 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.11] Commission Implementing Decision 2014/641/EU of 01/09/2014 on harmonised technical
conditions of radio spectrum use by wireless audio programme making and special events
equipment in the Union (notified under document C(2014) 6011) (Text with EEA relevance).
[i.12] CEPT/ERC Recommendation 70-03: "Annex 10: Radio microphone applications including
assistive listening devices (ALD), wireless audio and multimedia streaming systems".
[i.13] CEPT/ERC Recommendation 25-10: "Frequency Ranges for the Use of Terrestrial Audio and
Video Programme Making and Special Events (PMSE) applications", Amended 18 October 2016.
[i.14] Commission Decision 2013/752/EC on harmonization of the radio spectrum for use by short-range
devices as amended by subsequent Commission Decisions.
[i.15] Recommendation ITU-R BS.559-2: "Objective measurement of radio-frequency protection ratios
in LF, MF, and HF broadcasting".
[i.16] ECC Report 204: "Spectrum Use and future requirements for PMSE".
NOTE: Available at https://docdb.cept.org/download/1f1d1819-5ca2/ECCREP204.PDF.
[i.17] Report Recommendation ITU-R SM.2152 (09/2009): "Definitions of Software Defined Radio
(SDR) and Cognitive Radio System (CRS)".
[i.18] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.19] ANSI C63.5: "American National Standard for Calibration of Antennas Used for Radiated
Emission Measurements in Electro Magnetic Interference".
ETSI
12 Draft ETSI EN 300 422-1 V2.2.1 (2021-08)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in Directive 2014/53/EU [i.10] and the following apply:
analogue modulation: modulation technique whereby message signal, which is the analogue of some physical
quantity, is impressed on a carrier signal for transmission through a channel (e.g. FM)
antenna port: port, where a radio frequency antenna i
...

HARMONISED EUROPEAN STANDARD
Wireless Microphones;
Audio PMSE up to 3 GHz;
Part 1: Audio PMSE Equipment up to 3 GHz;
Harmonised Standard for access to radio spectrum

2 ETSI EN 300 422-1 V2.2.1 (2021-11)

Reference
REN/ERM-TG17-157
Keywords
audio, audio-PMSE, C-PMSE, harmonised
standard, radio, testing, wireless microphone,
wireless microphone system
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

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
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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
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If you find errors in the present document, please send your comment to one of the following services:
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Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
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.

© ETSI 2021.
All rights reserved.
ETSI
3 ETSI EN 300 422-1 V2.2.1 (2021-11)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Executive summary . 8
Introduction . 8
1 Scope . 10
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 12
3.1 Terms . 12
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 16
4.2.1 Transmitter RF Output Power . 16
4.2.1.1 Definition . 16
4.2.1.2 Limit . 16
4.2.1.3 Conformance . 16
4.2.2 Transmitter Frequency Stability . 16
4.2.2.1 General . 16
4.2.2.2 Definition . 16
4.2.2.3 Limits . 16
4.2.2.4 Conformance . 16
4.2.3 Declared Channel Bandwidth and Occupied Channel Bandwidth . 17
4.2.3.1 Definitions . 17
4.2.3.2 Limits . 17
4.2.3.3 Conformance . 17
4.2.4 Transmitter unwanted emissions . 18
4.2.4.1 Transmitter unwanted emissions in the spurious domain . 18
4.2.4.1.1 Definition. 18
4.2.4.1.2 Limits . 18
4.2.4.1.3 Conformance . 19
4.2.4.2 Transmitter unwanted emissions in the out of band domain . 19
4.2.4.2.1 Definition. 19
4.2.4.2.2 Limits . 19
4.2.4.2.3 Conformance . 21
4.2.5 Transmitter intermodulation attenuation . 21
4.2.5.1 Definitions . 21
4.2.5.2 Limits . 21
4.2.5.3 Conformance . 21
4.3 Conformance requirements for receivers . 21
4.3.1 Minimum performance criterion . 21
4.3.2 Receiver sensitivity . 21
4.3.2.1 Definition . 21
4.3.2.2 Limit . 22
4.3.2.3 Conformance . 22
4.3.3 Receiver adjacent channel selectivity . 22
4.3.3.1 Definition . 22
4.3.3.2 Limit . 22
4.3.3.3 Conformance . 23
4.3.4 Receiver blocking . 23
ETSI
4 ETSI EN 300 422-1 V2.2.1 (2021-11)
4.3.4.1 Definition . 23
4.3.4.2 Limit . 23
4.3.4.3 Conformance . 23
4.3.5 Receiver unwanted emissions in the spurious domain . 23
4.3.5.1 Definition . 23
4.3.5.2 Limit . 24
4.3.5.3 Conformance . 24
5 Testing for compliance with technical requirements . 24
5.1 Environmental conditions for testing . 24
5.1.1 Introduction. 24
5.1.2 Normal test conditions . 24
5.1.2.1 Normal temperature and humidity . 24
5.1.2.2 Normal power source . 24
5.1.3 Extreme test conditions . 24
5.2 Interpretation of the measurement results . 25
5.3 Definition of other test conditions . 25
5.3.1 Product information for testing . 25
5.3.2 Test signals . 26
5.3.2.1 Audio test signal generation for equipment employing analogue modulation techniques . 26
5.3.2.2 Audio test signal generation for equipment employing digital modulation techniques including
WMAS . 27
5.3.2.3 Wanted signal . 28
5.3.2.4 Unwanted signal . 28
5.3.2.5 Test signal for non-continuous transmitters . 28
5.3.3 Test setup . 28
5.3.4 Test operational modes . 29
5.3.4.1 Receiver operational mode . 29
5.3.4.2 Rx Diversity . 29
5.3.5 Antennas . 29
5.3.5.1 Integrated and dedicated antennas . 29
5.3.6 Presentation of equipment . 29
5.3.7 Conducted measurements, radiated measurements, relative measurements . 29
5.4 Method of measurement for transmitters . 29
5.4.1 Transmitter RF power . 29
5.4.1.1 Test conditions . 29
5.4.1.2 Test method . 30
5.4.1.2.1 Conducted measurement. 30
5.4.1.2.2 Radiated measurement . 30
5.4.2 Transmitter frequency stability . 30
5.4.2.1 Test conditions . 30
5.4.2.2 Test method . 30
5.4.2.2.1 Conducted measurement. 30
5.4.2.2.2 Radiated measurement . 31
5.4.3 Transmitter unwanted emissions in the out of band domain and occupied channel bandwidth . 31
5.4.3.1 Test conditions . 31
5.4.3.2 Test method . 31
5.4.3.2.1 Conducted measurement. 31
5.4.3.2.2 Radiated measurement . 33
5.4.4 Transmitter unwanted emissions in the spurious domain . 33
5.4.4.1 Test conditions . 33
5.4.4.2 Test method . 33
5.4.4.2.1 Segmentation in smaller frequency bands . 33
5.4.4.2.2 Conducted measurement. 33
5.4.4.2.3 Radiated measurement . 34
5.4.5 Transmitter intermodulation attenuation . 34
5.4.5.1 Test conditions . 34
5.4.5.2 Test method . 35
5.4.5.2.1 Conducted measurement. 35
5.4.5.2.2 Radiated measurement . 37
5.5 Method of measurement for receivers . 37
5.5.1 Receiver sensitivity . 37
ETSI
5 ETSI EN 300 422-1 V2.2.1 (2021-11)
5.5.1.1 Test conditions . 37
5.5.1.2 Test method . 37
5.5.1.2.1 Conducted measurement. 37
5.5.1.2.2 Radiated measurement . 38
5.5.2 Receiver adjacent channel selectivity . 38
5.5.2.1 Test conditions . 38
5.5.2.2 Test method . 38
5.5.2.2.1 Conducted measurement. 38
5.5.2.2.2 Radiated measurement . 39
5.5.3 Receiver blocking . 39
5.5.3.1 Test conditions . 39
5.5.3.2 Test method . 40
5.5.3.2.1 Conducted measurement. 40
5.5.3.2.2 Radiated measurement . 40
5.5.4 Receiver unwanted emissions in the spurious domain . 41
5.5.4.1 Test conditions . 41
5.5.4.2 Test method . 41
5.5.4.2.1 Segmentation in smaller frequency bands . 41
5.5.4.2.2 Conducted measurement. 41
5.5.4.2.3 Radiated measurement . 43
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 44
Annex B (informative): Maximum measurement uncertainty . 46
Annex C (informative): Measurement of Occupied Channel Bandwidth for analogue
equipment . 47
C.1 Test configuration for measurement of the Occupied Channel Bandwidth for analogue equipment. 47
Annex D (normative): Radiated measurement . 48
D.1 Test sites and general arrangements for measurements involving the use of radiated fields . 48
D.1.1 General . 48
D.1.2 Anechoic chamber . 48
D.1.3 Anechoic chamber with a conductive ground plane . 49
D.1.4 Open Area Test Site (OATS) . 50
D.1.5 Test antenna . 51
D.1.6 Substitution antenna . 51
D.1.7 Measuring antenna . 52
D.1.8 Stripline arrangement . 52
D.1.8.1 General . 52
D.1.8.2 Description . 52
D.1.8.3 Calibration . 52
D.1.8.4 Mode of use . 52
D.2 Guidance on the use of radiation test sites . 52
D.2.1 General . 52
D.2.2 Verification of the test site . 52
D.2.3 Preparation of the DUT . 53
D.2.4 Power supplies to the DUT. 53
D.2.5 Volume control setting for analogue speech tests . 53
D.2.6 Range length . 53
D.2.7 Site preparation . 54
D.3 Coupling of signals . 54
D.3.1 General . 54
D.3.2 Data signals . 54
D.3.3 Speech and analogue signals . 55
D.3.3.0 General . 55
D.3.3.1 Acoustic coupler description. 55
D.3.3.2 Calibration . 55
ETSI
6 ETSI EN 300 422-1 V2.2.1 (2021-11)
D.4 Standard test position . 55
D.5 Test fixture . 56
D.5.1 General . 56
D.5.2 Description . 56
D.5.3 Calibration . 57
D.5.4 Mode of use . 57
Annex E (informative): Additional parameters identified under article 3.2 of Directive
2014/53/EU . 58
Annex F (informative): Change history . 59
History . 60

ETSI
7 ETSI EN 300 422-1 V2.2.1 (2021-11)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are 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 Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the ®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised 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.10].
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 Equipment up
to 3 GHz, as identified below:
Part 1: "Audio PMSE Equipment up to 3 GHz";
Part 2: "Class B Receivers" (see note);
Part 3: "Class C Receivers"(see note);
Part 4: "Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz".
NOTE: Since the present document now covers Class A, B, and C receivers for audio PMSE, ETSI EN 300 422-2
and ETSI EN 300 422-3 will no longer be maintained.

ETSI
8 ETSI EN 300 422-1 V2.2.1 (2021-11)
National transposition dates
Date of adoption of this EN: 18 November 2021
Date of latest announcement of this EN (doa): 28 February 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2022
Date of withdrawal of any conflicting National Standard (dow): 31 August 2023

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
This update includes changes requested by the EC for terminology in Harmonised Standards in addition to changes of
the technical requirements.
Introduction
Audio Programme Making and Special Events (Audio PMSE) equipment up to 3 GHz are used in wireless applications
for audio transmission purposes.
Following publication by ETSI of version 2.1.2 of ETSI EN 300 422-1 and its subsequent publication in the Official
Journal, the present document has been revised with information gained from those using that version. The previous
four-parts deliverable has been reformatted into two parts to accommodate the different types of equipment represented.
The present document (Part 1) now covers Class A, B, and C receivers for audio PMSE. To avoid confusion, the
numbering for ETSI EN 300 422-4 [i.4] (ALDs) has been retained.
Spectrum, power limits, and technical requirements for audio PMSE are shown in the latest version of:
• EC Decision on Short Range Devices [i.14];
• CEPT/ERC Recommendation 70-03 [i.12], annex 10;
• National Interface regulations; and
• compatibility studies.
Further information is given in CEPT/ERC Recommendation 25-10 [i.13], annexes 2 and 4. Further information is
available via the ECO website:
https://cept.org/ecc/topics/programme-making-and-special-events-applications-pmse
and the EFIS database:
https://efis.cept.org/.
Unless otherwise stated in the EC SRD Decision [i.14], EC Decision 2014/641/EU [i.11] or national regulations, the use
of audio PMSE equipment can be subject to an individual licensing regime.
ETSI
9 ETSI EN 300 422-1 V2.2.1 (2021-11)
Although the present document covers a spectrum up to 3 GHz, it should be emphasized that multi-channel audio
PMSE systems used in professional productions are best suited to a spectrum under 2 GHz for reasons of propagation
and body interaction. Further information on audio PMSE is available in ECC Report 204 [i.16].
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 V2.2.1 (2021-11)
1 Scope
The present document specifies technical characteristics and methods of measurements for audio PMSE equipment
operating with up to 250 mW output power on radio frequencies up to 3 GHz (see note 1).
NOTE 1: For RF power levels above this, refer to ETSI EN 300 454-1 [i.3].
Audio Programme Making and Special Events (PMSE) equipment within the scope of the present document is used in
wireless applications for audio transmission purposes including, but not limited to equipment such as wireless
microphones, in-ear monitoring systems, conference systems, talkback systems, tour guide systems, Cognitive PMSE
(C-PMSE), Wireless Multichannel Audio Systems (WMAS), and assistive listening devices.
Table 1: Radiocommunications service frequency bands
Radiocommunications service frequency bands
Transmit up to 3 000 MHz
Receive up to 3 000 MHz
NOTE 2: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.10] is given in annex A.
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 included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] IEC 60244-13:1991: "Methods of measurement for radio transmitters - Part 13: Performance
characteristics for FM sound broadcasting".
[2] ERC Recommendation 74-01 (May 2019): "Unwanted emissions in the spurious domain".
2.2 Informative 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.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336: "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] Void.
ETSI
11 ETSI EN 300 422-1 V2.2.1 (2021-11)
[i.3] ETSI EN 300 454-1: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Wide
band audio links; Part 1: Technical characteristics and test methods".
[i.4] ETSI EN 300 422-4: "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".
[i.5] Void.
[i.6] ETSI EG 203 367 (V1.1.1): "Guide to the application of harmonised standards covering
articles 3.1b and 3.2 of the Directive 2014/53/EU (RED) to multi-radio and combined radio and
non-radio equipment".
[i.7] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[i.8] ETSI EN 301 489-9: "ElectroMagnetic Compatibility (EMC) standard for radio equipment and
services; Part 9: Specific conditions for wireless microphones, similar Radio Frequency (RF)
audio link equipment, cordless audio and in-ear monitoring devices; Harmonised Standard
covering the essential requirements of article 3.1(b) of Directive 2014/53/EU".
[i.9] Void.
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 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.11] Commission Implementing Decision 2014/641/EU of 01/09/2014 on harmonised technical
conditions of radio spectrum use by wireless audio programme making and special events
equipment in the Union (notified under document C(2014) 6011) (Text with EEA relevance).
[i.12] CEPT/ERC Recommendation 70-03: "Annex 10: Radio microphone applications including
assistive listening devices (ALD), wireless audio and multimedia streaming systems".
[i.13] CEPT/ERC Recommendation 25-10: "Frequency Ranges for the Use of Terrestrial Audio and
Video Programme Making and Special Events (PMSE) applications", Amended 18 October 2016.
[i.14] Commission Decision 2013/752/EC on harmonization of the radio spectrum for use by short-range
devices as amended by subsequent Commission Decisions.
[i.15] Recommendation ITU-R BS.559-2: "Objective measurement of radio-frequency protection ratios
in LF, MF, and HF broadcasting".
[i.16] ECC Report 204: "Spectrum Use and future requirements for PMSE".
NOTE: Available at https://docdb.cept.org/download/1f1d1819-5ca2/ECCREP204.PDF.
[i.17] Report Recommendation ITU-R SM.2152 (09/2009): "Definitions of Software Defined Radio
(SDR) and Cognitive Radio System (CRS)".
[i.18] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.19] ANSI C63.5: "American National Standard for Calibration of Antennas Used for Radiated
Emission Measurements in Electro Magnetic Interference".
ETSI
12 ETSI EN 300 422-1 V2.2.1 (2021-11)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in Directive 2014/53/EU [i.10] and the following apply:
analogue modulation: modulation technique whereby message signal, which is the analogue of some physical
quantity, is impressed on a carrier signal for transmission through a channel (e.g. FM)
antenna port: port, where a radio frequency antenna is connected to equipment or where a temporary antenna
connector is provided
NOTE: 50 Ω connection points unless otherwise stated.
audio channel: monaural (mono) audio s
...

SLOVENSKI STANDARD
01-januar-2022
Brezžični mikrofoni - Avdio PMSE na frekvencah do 3 GHz - 1. del: Avdio PMSE
oprema na frekvencah do 3 GHz - Harmonizirani standard za dostop do radijskega
spektra
Wireless Microphones - Audio PMSE up to 3 GHz - Part 1: Audio PMSE Equipment up to
3 GHz - Harmonised Standard for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 300 422-1 V2.2.1 (2021-11)
ICS:
33.160.50 Pribor Accessories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONISED EUROPEAN STANDARD
Wireless Microphones;
Audio PMSE up to 3 GHz;
Part 1: Audio PMSE Equipment up to 3 GHz;
Harmonised Standard for access to radio spectrum

2 ETSI EN 300 422-1 V2.2.1 (2021-11)

Reference
REN/ERM-TG17-157
Keywords
audio, audio-PMSE, C-PMSE, harmonised
standard, radio, testing, wireless microphone,
wireless microphone system
ETSI
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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 prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
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
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
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.

© ETSI 2021.
All rights reserved.
ETSI
3 ETSI EN 300 422-1 V2.2.1 (2021-11)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Executive summary . 8
Introduction . 8
1 Scope . 10
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 12
3.1 Terms . 12
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 15
4.1 Environmental profile . 15
4.2 Conformance requirements . 16
4.2.1 Transmitter RF Output Power . 16
4.2.1.1 Definition . 16
4.2.1.2 Limit . 16
4.2.1.3 Conformance . 16
4.2.2 Transmitter Frequency Stability . 16
4.2.2.1 General . 16
4.2.2.2 Definition . 16
4.2.2.3 Limits . 16
4.2.2.4 Conformance . 16
4.2.3 Declared Channel Bandwidth and Occupied Channel Bandwidth . 17
4.2.3.1 Definitions . 17
4.2.3.2 Limits . 17
4.2.3.3 Conformance . 17
4.2.4 Transmitter unwanted emissions . 18
4.2.4.1 Transmitter unwanted emissions in the spurious domain . 18
4.2.4.1.1 Definition. 18
4.2.4.1.2 Limits . 18
4.2.4.1.3 Conformance . 19
4.2.4.2 Transmitter unwanted emissions in the out of band domain . 19
4.2.4.2.1 Definition. 19
4.2.4.2.2 Limits . 19
4.2.4.2.3 Conformance . 21
4.2.5 Transmitter intermodulation attenuation . 21
4.2.5.1 Definitions . 21
4.2.5.2 Limits . 21
4.2.5.3 Conformance . 21
4.3 Conformance requirements for receivers . 21
4.3.1 Minimum performance criterion . 21
4.3.2 Receiver sensitivity . 21
4.3.2.1 Definition . 21
4.3.2.2 Limit . 22
4.3.2.3 Conformance . 22
4.3.3 Receiver adjacent channel selectivity . 22
4.3.3.1 Definition . 22
4.3.3.2 Limit . 22
4.3.3.3 Conformance . 23
4.3.4 Receiver blocking . 23
ETSI
4 ETSI EN 300 422-1 V2.2.1 (2021-11)
4.3.4.1 Definition . 23
4.3.4.2 Limit . 23
4.3.4.3 Conformance . 23
4.3.5 Receiver unwanted emissions in the spurious domain . 23
4.3.5.1 Definition . 23
4.3.5.2 Limit . 24
4.3.5.3 Conformance . 24
5 Testing for compliance with technical requirements . 24
5.1 Environmental conditions for testing . 24
5.1.1 Introduction. 24
5.1.2 Normal test conditions . 24
5.1.2.1 Normal temperature and humidity . 24
5.1.2.2 Normal power source . 24
5.1.3 Extreme test conditions . 24
5.2 Interpretation of the measurement results . 25
5.3 Definition of other test conditions . 25
5.3.1 Product information for testing . 25
5.3.2 Test signals . 26
5.3.2.1 Audio test signal generation for equipment employing analogue modulation techniques . 26
5.3.2.2 Audio test signal generation for equipment employing digital modulation techniques including
WMAS . 27
5.3.2.3 Wanted signal . 28
5.3.2.4 Unwanted signal . 28
5.3.2.5 Test signal for non-continuous transmitters . 28
5.3.3 Test setup . 28
5.3.4 Test operational modes . 29
5.3.4.1 Receiver operational mode . 29
5.3.4.2 Rx Diversity . 29
5.3.5 Antennas . 29
5.3.5.1 Integrated and dedicated antennas . 29
5.3.6 Presentation of equipment . 29
5.3.7 Conducted measurements, radiated measurements, relative measurements . 29
5.4 Method of measurement for transmitters . 29
5.4.1 Transmitter RF power . 29
5.4.1.1 Test conditions . 29
5.4.1.2 Test method . 30
5.4.1.2.1 Conducted measurement. 30
5.4.1.2.2 Radiated measurement . 30
5.4.2 Transmitter frequency stability . 30
5.4.2.1 Test conditions . 30
5.4.2.2 Test method . 30
5.4.2.2.1 Conducted measurement. 30
5.4.2.2.2 Radiated measurement . 31
5.4.3 Transmitter unwanted emissions in the out of band domain and occupied channel bandwidth . 31
5.4.3.1 Test conditions . 31
5.4.3.2 Test method . 31
5.4.3.2.1 Conducted measurement. 31
5.4.3.2.2 Radiated measurement . 33
5.4.4 Transmitter unwanted emissions in the spurious domain . 33
5.4.4.1 Test conditions . 33
5.4.4.2 Test method . 33
5.4.4.2.1 Segmentation in smaller frequency bands . 33
5.4.4.2.2 Conducted measurement. 33
5.4.4.2.3 Radiated measurement . 34
5.4.5 Transmitter intermodulation attenuation . 34
5.4.5.1 Test conditions . 34
5.4.5.2 Test method . 35
5.4.5.2.1 Conducted measurement. 35
5.4.5.2.2 Radiated measurement . 37
5.5 Method of measurement for receivers . 37
5.5.1 Receiver sensitivity . 37
ETSI
5 ETSI EN 300 422-1 V2.2.1 (2021-11)
5.5.1.1 Test conditions . 37
5.5.1.2 Test method . 37
5.5.1.2.1 Conducted measurement. 37
5.5.1.2.2 Radiated measurement . 38
5.5.2 Receiver adjacent channel selectivity . 38
5.5.2.1 Test conditions . 38
5.5.2.2 Test method . 38
5.5.2.2.1 Conducted measurement. 38
5.5.2.2.2 Radiated measurement . 39
5.5.3 Receiver blocking . 39
5.5.3.1 Test conditions . 39
5.5.3.2 Test method . 40
5.5.3.2.1 Conducted measurement. 40
5.5.3.2.2 Radiated measurement . 40
5.5.4 Receiver unwanted emissions in the spurious domain . 41
5.5.4.1 Test conditions . 41
5.5.4.2 Test method . 41
5.5.4.2.1 Segmentation in smaller frequency bands . 41
5.5.4.2.2 Conducted measurement. 41
5.5.4.2.3 Radiated measurement . 43
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 44
Annex B (informative): Maximum measurement uncertainty . 46
Annex C (informative): Measurement of Occupied Channel Bandwidth for analogue
equipment . 47
C.1 Test configuration for measurement of the Occupied Channel Bandwidth for analogue equipment. 47
Annex D (normative): Radiated measurement . 48
D.1 Test sites and general arrangements for measurements involving the use of radiated fields . 48
D.1.1 General . 48
D.1.2 Anechoic chamber . 48
D.1.3 Anechoic chamber with a conductive ground plane . 49
D.1.4 Open Area Test Site (OATS) . 50
D.1.5 Test antenna . 51
D.1.6 Substitution antenna . 51
D.1.7 Measuring antenna . 52
D.1.8 Stripline arrangement . 52
D.1.8.1 General . 52
D.1.8.2 Description . 52
D.1.8.3 Calibration . 52
D.1.8.4 Mode of use . 52
D.2 Guidance on the use of radiation test sites . 52
D.2.1 General . 52
D.2.2 Verification of the test site . 52
D.2.3 Preparation of the DUT . 53
D.2.4 Power supplies to the DUT. 53
D.2.5 Volume control setting for analogue speech tests . 53
D.2.6 Range length . 53
D.2.7 Site preparation . 54
D.3 Coupling of signals . 54
D.3.1 General . 54
D.3.2 Data signals . 54
D.3.3 Speech and analogue signals . 55
D.3.3.0 General . 55
D.3.3.1 Acoustic coupler description. 55
D.3.3.2 Calibration . 55
ETSI
6 ETSI EN 300 422-1 V2.2.1 (2021-11)
D.4 Standard test position . 55
D.5 Test fixture . 56
D.5.1 General . 56
D.5.2 Description . 56
D.5.3 Calibration . 57
D.5.4 Mode of use . 57
Annex E (informative): Additional parameters identified under article 3.2 of Directive
2014/53/EU . 58
Annex F (informative): Change history . 59
History . 60

ETSI
7 ETSI EN 300 422-1 V2.2.1 (2021-11)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are 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 Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
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.
Trademarks
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
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Foreword
This Harmonised 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.10].
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 Equipment up
to 3 GHz, as identified below:
Part 1: "Audio PMSE Equipment up to 3 GHz";
Part 2: "Class B Receivers" (see note);
Part 3: "Class C Receivers"(see note);
Part 4: "Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz".
NOTE: Since the present document now covers Class A, B, and C receivers for audio PMSE, ETSI EN 300 422-2
and ETSI EN 300 422-3 will no longer be maintained.

ETSI
8 ETSI EN 300 422-1 V2.2.1 (2021-11)
National transposition dates
Date of adoption of this EN: 18 November 2021
Date of latest announcement of this EN (doa): 28 February 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2022
Date of withdrawal of any conflicting National Standard (dow): 31 August 2023

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
This update includes changes requested by the EC for terminology in Harmonised Standards in addition to changes of
the technical requirements.
Introduction
Audio Programme Making and Special Events (Audio PMSE) equipment up to 3 GHz are used in wireless applications
for audio transmission purposes.
Following publication by ETSI of version 2.1.2 of ETSI EN 300 422-1 and its subsequent publication in the Official
Journal, the present document has been revised with information gained from those using that version. The previous
four-parts deliverable has been reformatted into two parts to accommodate the different types of equipment represented.
The present document (Part 1) now covers Class A, B, and C receivers for audio PMSE. To avoid confusion, the
numbering for ETSI EN 300 422-4 [i.4] (ALDs) has been retained.
Spectrum, power limits, and technical requirements for audio PMSE are shown in the latest version of:
• EC Decision on Short Range Devices [i.14];
• CEPT/ERC Recommendation 70-03 [i.12], annex 10;
• National Interface regulations; and
• compatibility studies.
Further information is given in CEPT/ERC Recommendation 25-10 [i.13], annexes 2 and 4. Further information is
available via the ECO website:
https://cept.org/ecc/topics/programme-making-and-special-events-applications-pmse
and the EFIS database:
https://efis.cept.org/.
Unless otherwise stated in the EC SRD Decision [i.14], EC Decision 2014/641/EU [i.11] or national regulations, the use
of audio PMSE equipment can be subject to an individual licensing regime.
ETSI
9 ETSI EN 300 422-1 V2.2.1 (2021-11)
Although the present document covers a spectrum up to 3 GHz, it should be emphasized that multi-channel audio
PMSE systems used in professional productions are best suited to a spectrum under 2 GHz for reasons of propagation
and body interaction. Further information on audio PMSE is available in ECC Report 204 [i.16].
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 V2.2.1 (2021-11)
1 Scope
The present document specifies technical characteristics and methods of measurements for audio PMSE equipment
operating with up to 250 mW output power on radio frequencies up to 3 GHz (see note 1).
NOTE 1: For RF power levels above this, refer to ETSI EN 300 454-1 [i.3].
Audio Programme Making and Special Events (PMSE) equipment within the scope of the present document is used in
wireless applications for audio transmission purposes including, but not limited to equipment such as wireless
microphones, in-ear monitoring systems, conference systems, talkback systems, tour guide systems, Cognitive PMSE
(C-PMSE), Wireless Multichannel Audio Systems (WMAS), and assistive listening devices.
Table 1: Radiocommunications service frequency bands
Radiocommunications service frequency bands
Transmit up to 3 000 MHz
Receive up to 3 000 MHz
NOTE 2: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.10] is given in annex A.
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 included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] IEC 60244-13:1991: "Methods of measurement for radio transmitters - Part 13: Performance
characteristics for FM sound broadcasting".
[2] ERC Recommendation 74-01 (May 2019): "Unwanted emissions in the spurious domain".
2.2 Informative 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.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336: "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] Void.
ETSI
11 ETSI EN 300 422-1 V2.2.1 (2021-11)
[i.3] ETSI EN 300 454-1: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Wide
band audio links; Part 1: Technical characteristics and test methods".
[i.4] ETSI EN 300 422-4: "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".
[i.5] Void.
[i.6] ETSI EG 203 367 (V1.1.1): "Guide to the application of harmonised standards covering
articles 3.1b and 3.2 of the Directive 2014/53/EU (RED) to multi-radio and combined radio and
non-radio equipment".
[i.7] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[i.8] ETSI EN 301 489-9: "ElectroMagnetic Compatibility (EMC) standard for radio equipment and
services; Part 9: Specific conditions for wireless microphones, similar Radio Frequency (RF)
audio link equipment, cordless audio and in-ear monitoring devices; Harmonised Standard
covering the essential requirements of article 3.1(b) of Directive 2014/53/EU".
[i.9] Void.
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 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.11] Commission Implementing Decision 2014/641/EU of 01/09/2014 on harmonised technical
conditions of radio spectrum use by wireless audio programme making and special events
equipment in the Union (notified under document C(2014) 6011) (Text with EEA relevance).
[i.12] CEPT/ERC Recommendation 70-03: "Annex 10: Radio microphone applications including
assistive listening devices (ALD), wireless audio and multimedia streaming systems".
[i.13] CEPT/ERC Recommendation 25-10: "Frequency Ranges for the Use of Terrestrial Audio and
Video Programme Making and Special Events (PMSE) applications", Amended 18 October 2016.
[i.14] Commission Decision 2013/752/EC on harmonization of the radio spectrum for use by short-range
devices as amended by subsequent Commission Decisions.
[i.15] Recommendation ITU-R BS.559-2: "Objective measurement of radio-frequency protection ratios
in LF, MF, and HF broadcasting".
[i.16] ECC Report 204: "Spectrum Use and future requirements for PMSE".
NOTE: Available at https://docdb.cept.org/download/1f1d1819-5ca2/ECCREP204.PDF.
[i.17] Report Recommendation ITU-R SM.2152 (09/2009): "Definitions of Software Defined Radio
(SDR) and Cognitive Radio System (CRS)".
[i.18] Commission Implementing Decision C(2015) 5376 final of 4.8.2
...