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HARMONISED EUROPEAN STANDARD
ElectroMagnetic Compatibility (EMC)
standard for radio equipment and services;
Part 4: Specific conditions for fixed radio links
and ancillary equipment;
Harmonised Standard covering the essential requirements
of article 3.1(b) of Directive 2014/53/EU
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2 ETSI EN 301 489-4 V3.2.1 (2019-04)
Reference
REN/ERM-EMC-369
Keywords
EMC, FWA, harmonised standard, point-to-point,
radio, regulation, RLL, WLL
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3 ETSI EN 301 489-4 V3.2.1 (2019-04)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 Test conditions . 8
4.1 General . 8
4.1.1 Introduction. 8
4.1.2 Test conditions and configurations . 8
4.1.3 Emission tests . 9
4.1.4 Immunity tests . 9
4.2 Arrangements for test signals . 11
4.2.1 Arrangements for test signals at the input of the transmitter . 11
4.2.2 Arrangements for test signals at the output of the transmitter . 11
4.2.3 Arrangements for test signals at the input of the receiver . 11
4.2.4 Arrangements for test signals at the output of the receiver . 11
4.3 Exclusion bands . 12
4.3.0 General . 12
4.3.1 Exclusion bands for receivers . 12
4.3.2 Exclusion bands for transmitters . 12
5 Performance assessment . 12
5.1 General . 12
5.2 Equipment which can provide a communications link . 12
5.3 Equipment which does not provide a communications link . 12
5.4 Ancillary equipment . 12
5.5 Equipment classification . 12
6 Performance criteria . 13
6.0 Introduction . 13
6.1 Performance criterion for Continuous phenomena applied to Transmitters (CT) and Receivers (CR) . 13
6.2 Performance criterion for Transient phenomena applied to Transmitters (TT) and Receivers (TR) . 13
6.3 Specific performance criteria . 13
6.3.1 Digital signal ports . 13
6.3.1.0 Introduction . 13
6.3.1.1 Performance criterion for continuous phenomena . 13
6.3.1.2 Performance criterion for transient phenomena . 14
6.3.2 Analogue voice frequency signal ports . 14
6.3.2.0 Introduction . 14
6.3.2.1 Performance criterion for continuous phenomena . 14
6.3.2.2 Performance criterion for transient phenomena . 14
6.3.3 Ethernet and packet-data interfaces . 14
6.3.3.0 Introduction . 14
6.3.3.1 Performance criterion for continuous phenomena . 14
6.3.3.2 Performance criterion for transient phenomena . 14
6.3.4 Service and maintenance interfaces . 14
6.3.5 Synchronization interfaces . 15
6.3.5.0 Introduction . 15
6.3.5.1 Performance criterion for continuous phenomena . 15
6.3.5.2 Performance criteria for transient phenomena . 15
ETSI
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4 ETSI EN 301 489-4 V3.2.1 (2019-04)
6.3.6 Remote alarm interfaces . 15
6.3.6.0 Introduction . 15
6.3.6.1 Performance criterion for continuous phenomena . 15
6.3.6.2 Performance criterion for transient phenomena . 15
6.4 Performance criteria for ancillary equipment tested on a stand alone basis . 15
7 Applicability overview tables . 15
7.1 Emission . 15
7.1.1 General . 15
7.1.2 Special conditions . 16
7.2 Immunity . 16
7.2.1 General . 16
7.2.2 Special conditions . 16
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 17
Annex B (informative): Examples of Fixed Radio Link equipment within the scope of the
present document . 19
B.1 Fixed Radio Systems; Point-to-Point equipment; intended for operation in the frequency bands
from 1,3 GHz to 86 GHz . 19
B.2 Fixed Radio Systems; Point-to-Multipoint equipment; intended for operation in the frequency
band below 1 GHz and in frequency bands from 1 GHz to 40 GHz . 19
Annex C (informative): Change history . 20
History . 21
ETSI
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5 ETSI EN 301 489-4 V3.2.1 (2019-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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.
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.
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.11] 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.1].
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 4 of a multi-part deliverable. Full details of the entire series can be found in part 1 [1].
National transposition dates
Date of adoption of this EN: 6 June 2017
Date of latest announcement of this EN (doa): 31 July 2019
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2020
Date of withdrawal of any conflicting National Standard (dow): 31 January 2021
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.
ETSI
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6 ETSI EN 301 489-4 V3.2.1 (2019-04)
1 Scope
The present document specifies technical characteristics and methods of measurement for Analogue and Digital Fixed
Radio Links operating as fixed Point-to-Point, and Point-to-Multipoint systems as defined in annex B, including the
associated ancillary equipment.
NOTE: Technical specifications related to the antenna port of the radio equipment are not included in the present
document. Such technical specifications are found in the relevant product standards for the effective use
of the radio spectrum.
In case of differences (for instance concerning special conditions, definitions and abbreviations) between the present
document and ETSI EN 301 489-1 [1], the provisions of the present document take precedence.
The processing and protection switch, (de)modulator, transmitter, receiver, RF filters, branching networks and feeders
are covered by the present document. The multiplexing and/or de-multiplexing elements are covered if they form part of
the transmitter, receiver and/or transceiver.
The environmental classification and the emission and immunity requirements used in the present document are as
stated in ETSI EN 301 489-1 [1], except for any special conditions included in the present document.
The present document covers the essential requirements of article 3.1(b) of Directive 2014/53/EU [i.1] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version 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] ETSI EN 301 489-1 (V2.2.0) (03-2017): "ElectroMagnetic Compatibility (EMC) standard for
radio equipment and services; Part 1: Common technical requirements; Harmonised Standard
covering the essential requirements of article 3.1(b) of Directive 2014/53/EU and the essential
requirements of article 6 of Directive 2014/30/EU".
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] 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.2] Void.
ETSI
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7 ETSI EN 301 489-4 V3.2.1 (2019-04)
[i.3] Recommendation ITU-R F.1191-1: "Bandwidths and unwanted emissions of digital radio-relay
systems".
[i.4] Recommendation ITU-R F.746-3: "Radio-frequency channel arrangements for radio-relay
systems".
[i.5] ETSI EN 302 217-2: "Fixed Radio Systems; Characteristics and requirements for point-to-point
equipment and antennas; Part 2: Digital systems operating in frequency bands from 1 GHz to
86 GHz; Harmonised Standard for access to radio spectrum".
[i.6] Void.
[i.7] ETSI EN 302 326-2: "Fixed Radio Systems; Multipoint Equipment and Antennas; Part 2:
Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive for
Digital Multipoint Radio Equipment".
[i.8] Void.
[i.9] Void.
[i.10] Void.
[i.11] 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.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI EN 301 489-1 [1] and the following
apply:
Base Station (BS): alternative name for Central Station
Central Station (CS): which can be subdivided into two units:
• the exchange unit, also called Central Controller Station (CCS) - (interface to the local switch); and
• the radio unit, also called Central Radio Station (CRS) - (central base band/radio transceiver)
NOTE: In some deployments the term Base Station is also used in place of Central Station. For the purposes of
the present document either terms are assumed and are completely interchangeable.
CHannel Separation (CHS): CHannel Separation (CHS) is taken as XS/2 for alternated frequency channel
arrangements according to Recommendation ITU-R F.1191-1 [i.3] and XS for co-channel and interleaved frequency
channel arrangements as defined by Recommendation ITU-R F.746-3 [i.4], XS is the radio-frequency separation
between the centre frequencies of adjacent radio-frequency channels on the same polarization and in the same direction
of transmission
operating frequency range: range(s) of radio frequencies covered by the Equipment Under Test (EUT) without any
change of units
Repeater Station (RS): radio repeater outstations with or without subscriber interfaces
Terminal Station (TS): outstations with subscriber interfaces
ETSI
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8 ETSI EN 301 489-4 V3.2.1 (2019-04)
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI EN 301 489-1 [1] and the following apply:
BER Bit Error Ratio
BS Base Station
CCS Central Controller Station
CHS CHannel Separation
CR Continuous phenomena applied to Receivers
CRS Central Radio Station
CS Central Station
CT Continuous phenomena applied to Transmitters
RS Repeater Station
TR Transient phenomena applied to Receivers
TS Terminal Station
TT Transient phenomena applied to Transmitters
4 Test conditions
4.1 General
4.1.1 Introduction
For the purposes of the present document, the test conditions of ETSI EN 301 489-1 [1], clause 4, apply as appropriate.
Further product related test conditions for fixed radio links are specified in the present document.
For emission and immunity tests the test modulation, test arrangements, etc., as specified in the present document,
clauses 4.1.2 to 4.3.2 shall apply.
4.1.2 Test conditions and configurations
This clause defines the test conditions and configurations for the emission and immunity tests as follows:
• a transmitter shall, as a minimum, comprise the element between E' and A' of figure 1. Additionally the
transmitter may comprise any of the other elements from the transmitter chain shown in figure 1. If these
additional elements are part of the transmitter or system they shall also meet the requirements of the present
document;
Processing
Z'
G' F' E' A' B' C' D'
Tx RF
Branching
Multiplexing & Protection Modulator Transmitter Feeder
Network
Filter
Switch
NOTE 1: For the purposes of defining the reference points, the branching network (B' to C') does not include a
hybrid.
NOTE 2: Points B' and C' may coincide, dependent on the equipment configuration.
Figure 1: Elements of a transmitter
• a receiver shall, as a minimum, comprise the element between A and E of figure 2. Additionally the receiver
may comprise any of the other elements from the receiver chain shown in figure 2. If these additional elements
are part of the receiver or system they shall also meet the requirements of the present document;
ETSI
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9 ETSI EN 301 489-4 V3.2.1 (2019-04)
Processing
D C B A E F G Z
Rx RF
Branching
Feeder Receiver Demodulator & Protection Demux
Network
Filter
Switch
NOTE 1: For the purposes of defining the reference points, the branching network (B to C) does not include a
hybrid.
NOTE 2: Points B and C may coincide, dependent on the equipment configuration.
Figure 2: Elements of a receiver
• a transceiver shall comprise as a minimum the elements E' to A' and A to E shown in figures 1 and 2, and
additionally it may comprise any combinations of the other elements. If these additional elements are part of
the transceiver they shall also meet the requirements of the present document;
• the equipment shall be tested under conditions which are within the manufacturer's declared range of humidity,
temperature and supply voltage;
• the test configuration shall be as close to normal intended use as possible;
• if the equipment is part of a system, or can be connected to ancillary equipment, then it shall be acceptable to
test the equipment while connected to the minimum configuration of ancillary equipment necessary to exercise
the ports;
• ports which in normal operation are connected to ancillary or other equipment shall be either connected to
such equipment, or to a representative termination to simulate the input/output characteristics of the ancillary
or other equipment. Radio Frequency (RF) input/output ports shall be correctly terminated;
• if the equipment has a large number of ports, then a sufficient number shall be selected to simulate actual
operation conditions and to ensure that all the different types of termination are tested;
• ports which are not connected to cables during normal intended operation, e.g. service connectors,
programming connectors, temporary connectors etc. shall not be connected to any cables for the purpose of
ElectroMagnetic Compatibility (EMC) testing. Where cables have to be connected to these ports, or
interconnecting cables have to be extended in length in order to exercise the EUT, precautions shall be taken to
ensure that the evaluation of the EUT is not affected by the addition or extension of these cables;
• the test conditions, test configuration and mode of operation shall be recorded in the test report.
4.1.3 Emission tests
The provisions ETSI EN 301 489-1 [1], clause 8 shall apply with the following modification:
• For Point-to-Multipoint systems a communications link shall be established, which shall comprise of the
Central Station and a minimum of one Terminal Station. These stations are tested separately.
4.1.4 Immunity tests
The provisions of ETSI EN 301 489-1 [1], clause 9.1 shall apply with the following modifications:
• The test configuration shall for transmitters be in accordance with the principle of figure 3, and for receivers it
shall be in accordance with the principle of figure 4, and for transceiver shall be in accordance with the
principle of figure 5.
• The measuring equipment shall be located outside the test environment. Adequate measures shall be taken to
avoid any effects of the unwanted signals on the measuring equipment.
ETSI
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10 ETSI EN 301 489-4 V3.2.1 (2019-04)
Inside test environment Outside test environment
Input RF output
Monitoring
Transmitter
Receiver
Attenuator
equipment
Signal
source
Figure 3: Test configuration for transmitters
During immunity tests the transmitter shall be operated at its rated output power. The input to the transmitter shall be in
accordance with clause 4.2.1 (see figure 3). A communication link shall be established at the start of the test and be
maintained during the test.
Inside test environment Outside test environment
Output
RF input
Signal
Receiver Attenuator Transmitter
source
Monitoring
equipment
Figure 4: Test configuration for receivers
During immunity tests for receivers, the wanted RF input signal, coupled to the receiver, shall be in accordance with
clause 4.2.3 (see figure 4). A communication link shall be established at the start of the test and be maintained during
the test.
Inside test environment Outside test environment
RF output
Input Monitoring
Receiver
Transmitter Attenuator
equipment
RF input
Output Signal
Receiver Attenuator Transmitter
source
Figure 5: Test configuration of transceivers
In the case of duplex transceivers where the transmitter a
...