SIST EN 301 390 V2.1.1:2022
(Main)Fixed Radio Systems - Point-to-point and Multipoint Systems - Unwanted emissions in the spurious domain and receiver immunity limits at equipment/antenna port of Digital Fixed Radio Systems
Fixed Radio Systems - Point-to-point and Multipoint Systems - Unwanted emissions in the spurious domain and receiver immunity limits at equipment/antenna port of Digital Fixed Radio Systems
The scope of the present document is to define specific limits at antenna port for unwanted emissions in the spurious
domain and receiver immunity for suitable inter-working of Digital Fixed Radio Systems (i.e. Point-to-point and
Multipoint systems) in the same or in different frequency band whenever allocated to Fixed Service in the range 9 kHz
to 300 GHz.
However systems with fundamental emission below 30 MHz are not considered relevant for Digital Fixed Radio
Systems and are outside the scope of the present document.
The present document adopts CEPT/ERC Recommendation 74-01 [1] which gives limits for Unwanted emissions in the
Spurious domain with particular regards to "inter Services" operations.
In addition, it is recognized the need for a general requirement for receiver immunity to relatively high interference
signals generated by any source and at any frequency in the same range identified as spurious domain by CEPT/ERC
Recommendation 74-01 [1].
Some ETSI deliverables for DFRS provide limits for both "external" and "internal" spurious domain emissions and the
latter are outside the scope of the present document. Moreover the limits for emissions given in the present document do
not prevent more stringent requirement given in those deliverables for intra-system purpose (i.e. local Transmitter to
Receiver interference usually referred as "internal").
In order to help the understanding of limits given in CEPT/ERC Recommendation 74-01 [1], in annex B, unwanted
emissions in the spurious domain are analysed from the point of view of a suitable test method for conformance testing.
Fiksni radijski sistemi - Sistemi točka-točka in večtočkovni sistemi - Neželena oddajanja v nehoteni domeni in omejitve odpornosti sprejemnika pri portu opreme/antene digitalnih fiksnih radijskih sistemov
Področje uporabe tega dokumenta je opredelitev posebnih mejnih vrednosti pri antenskem vhodu za neželena oddajanja in omejitve odpornosti sprejemnika za ustrezno medsebojno delovanje digitalnih fiksnih radijskih sistemov (tj. sistemov točka-točka in večtočkovnih sistemov) v enakem ali drugačnem frekvenčnem pasu, kadar se dodeli fiksni storitvi v razponu od 9 kHz do 300 GHz.
Vendar se sistemi s temeljnim oddajanjem pod 30 MHz ne štejejo za primerne za digitalne fiksne radijske sisteme in so zunaj področja uporabe tega dokumenta.
Ta dokument sprejema priporočilo CEPT/ERC 74-01 [1], ki navaja mejne vrednosti za neželena oddajanja in se osredotoča zlasti na delovanje »med storitvami«.
Poleg tega priznava potrebo po splošni zahtevi glede odpornosti sprejemnika na razmeroma visoke motnje signalov, ki jih ustvari kateri koli vir pri kateri koli frekvenci v območju, ki je v priporočilu CEPT/ERC 74-01 [1] opredeljeno kot stranska domena.
Nekateri izsledki ETSI za digitalne fiksne radijske sisteme podajajo mejne vrednosti za »zunanja« in »notranja« oddajanja v stranski domeni, pri čemer so notranja oddajanja zunaj področja uporabe tega dokumenta. Poleg tega mejne vrednosti za oddajanja v tem dokumentu ne preprečujejo strožje zahteve iz teh izsledkov za uporabo znotraj sistema (tj. lokalna motnja med oddajnikom in sprejemnikom, običajno imenovana »notranja«).
Za lažje razumevanje mejnih vrednosti, podanih v priporočilu CEPT/ERC 74-01 [1], dodatek B, se neželena oddajanja analizirajo z vidika primerne preskusne metode za preskušanje skladnosti.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 301 390 V2.1.1:2022
01-februar-2022
Fiksni radijski sistemi - Sistemi točka-točka in večtočkovni sistemi - Neželena
oddajanja v nehoteni domeni in omejitve odpornosti sprejemnika pri portu
opreme/antene digitalnih fiksnih radijskih sistemov
Fixed Radio Systems - Point-to-point and Multipoint Systems - Unwanted emissions in
the spurious domain and receiver immunity limits at equipment/antenna port of Digital
Fixed Radio Systems
Ta slovenski standard je istoveten z: ETSI EN 301 390 V2.1.1 (2021-11)
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
33.100.10 Emisija Emission
SIST EN 301 390 V2.1.1:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 301 390 V2.1.1:2022
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SIST EN 301 390 V2.1.1:2022
ETSI EN 301 390 V2.1.1 (2021-11)
EUROPEAN STANDARD
Fixed Radio Systems;
Point-to-point and Multipoint Systems;
Unwanted emissions in the spurious domain and
receiver immunity limits at equipment/antenna
port of Digital Fixed Radio Systems
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SIST EN 301 390 V2.1.1:2022
2 ETSI EN 301 390 V2.1.1 (2021-11)
Reference
REN/ATTM-0452
Keywords
emission, FWS, immunity, multipoint, point-to-point
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 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
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© ETSI 2021.
All rights reserved.
ETSI
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SIST EN 301 390 V2.1.1:2022
3 ETSI EN 301 390 V2.1.1 (2021-11)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 9
3.3 Abbreviations . 10
4 Transmitter unwanted emissions in the spurious domain at antenna port . 11
4.1 Background . 11
4.2 Limits . 11
4.2.0 Generality . 11
4.2.1 Point-to-point equipment . 12
4.2.2 Multipoint equipment . 12
4.2.3 Broadband Wireless Access equipment operating between 1 GHz and 6 GHz . 12
5 Receiver spurious emissions at the antenna port . 12
6 Spurious domain emissions test method. 12
7 Receiver immunity at antenna port . 12
7.0 Definitions . 12
7.1 Limits . 13
7.2 Receiver immunity test method . 14
Annex A (informative): Application of CEPT/ERC Recommendation 74-01 . 15
A.0 Introduction . 15
A.1 Frequency range of applicability . 15
A.2 Level limits . 17
A.3 Reference bandwidths . 18
A.4 Detailed application of the reference bandwidths reported in table A.3 . 23
A.4.0 Foreword . 23
A.4.1 P-P and P-MP systems with fundamental emissions from 30 MHz to 1 GHz. 23
A.4.2 P-P and P-MP systems with fundamental emissions from 1 GHz to 21,2 GHz . 23
A.4.3 P-P and P-MP systems with fundamental emissions above 21,2 GHz . 24
Annex B (informative): Measurement background . 25
B.1 Spectrum analyser capability . 25
B.2 Application examples . 26
History . 32
ETSI
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SIST EN 301 390 V2.1.1:2022
4 ETSI EN 301 390 V2.1.1 (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 European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission and
Multiplexing (ATTM).
National transposition dates
Date of adoption of this EN: 25 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 2022
Major changes with respect to previous version
This revision is consequent to 2019 revision of CEPT/ERC Recommendation 74-01 [1], which revised the resolution
bandwidth staircase for the limits of unwanted emissions in the spurious domain also for system with channel
separation higher than 28 MHz and added specific limits for "channels-aggregation" systems as defined in ETSI
EN 302 217-2 [i.7]. In addition, standing the poor penetration of multipoint systems in the so-called HDFS (High
Density Fixed Service) bands (see 5.547 in the Radio Regulations [i.12]), limits for multipoint equipment with
fundamental emission above 21,2 GHz have also been aligned to those required by CEPT/ERC Recommendation
74-01 [1].
Examples in clause B.2 have been updated as appropriate.
ETSI
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SIST EN 301 390 V2.1.1:2022
5 ETSI EN 301 390 V2.1.1 (2021-11)
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.
Introduction
The term Spurious emissions is used for simplicity elsewhere in the present document but with the more broader
meaning of "unwanted emissions in the spurious domain" introduced by Recommendation ITU-R SM.329-12 [i.13] for
clarifying the Radio Regulation definitions and the application of recommended limits for all unwanted emissions; it
also recommends that spurious emissions limits apply to all unwanted emissions falling in the spurious domain.
Therefore the present document deals with limits for unwanted emissions in the spurious domain at antenna port of
Digital Fixed Radio Systems (DFRS) as defined by Recommendation ITU-R SM.329-12 [i.13], CEPT/ERC
Recommendation 74-01 [1] and ECC Recommendation (02)05 [i.18].
Moreover it covers characteristics of immunity from interference at receiver's antenna port.
Unwanted emissions in the spurious domain and immunity performance at antenna port are also relevant to essential
requirements under article 3.2 of Directive 2014/53/EU [i.11] on Radio Equipment (RED).
Additional considerations and background for producing the present document are:
- Recommendation ITU-R SM.329-12 [i.13] considers emissions from any system, including digital modulation
and allows options for the definition of the frequency boundary between out-of-band domain and spurious
domain. It recommends different category of level limits applicable to the Fixed Service;
- Recommendation ITU-R SM.1539-1 [i.14] describes the application of the boundary concept between
out-of-band and spurious domains;
- Recommendation ITU-R F.1191-3 [i.15] defines the application of Radio Regulations [i.12] and the concepts
of out-of-band, unwanted and spurious emissions to DFRS, clarify the applicability for the boundary between
out-of-band and Spurious emissions domains but maintain the same possible limit options provided by
Recommendation ITU-R SM.329-12 [i.13];
- CEPT/ERC Recommendation 74-01 [1] endorses only the more stringent Category B limits of
Recommendation ITU-R SM.329-12 [i.13];
- for the purpose of Directive 2014/53/EU [i.11], the emissions and immunity at antenna port fall under its
article 3.2 requirements for "effective use of spectrum" and "avoidance of harmful interference";
- it is convenient to maintain a single ETSI EN covering these parameters instead of replicating them on each
single product standard, avoiding possible deviation from what required by other CEPT and ITU-R normative;
- limits for unwanted emissions in the spurious domain are supposed to be fixed in view of inter-working
compatibility among various Fixed Radio Systems in same or different band exploited in the same area;
- the measurement of the required limits should also be feasible in a suitable and cost effective conformance test
(annex B gives also information in this field);
- it is necessary that DFRS receivers provide a minimum level of immunity at antenna port towards possible
interference at any frequency band of practical interest;
- a suitable and easy to perform criterion for DFRS receivers immunity at antenna port may be considered the
application of a CW interference.
ETSI
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SIST EN 301 390 V2.1.1:2022
6 ETSI EN 301 390 V2.1.1 (2021-11)
1 Scope
The scope of the present document is to define specific limits at antenna port for unwanted emissions in the spurious
domain and receiver immunity for suitable inter-working of Digital Fixed Radio Systems (i.e. Point-to-point and
Multipoint systems) in the same or in different frequency band whenever allocated to Fixed Service in the range 9 kHz
to 300 GHz.
However systems with fundamental emission below 30 MHz are not considered relevant for Digital Fixed Radio
Systems and are outside the scope of the present document.
The present document adopts CEPT/ERC Recommendation 74-01 [1] which gives limits for Unwanted emissions in the
Spurious domain with particular regards to "inter Services" operations.
In addition, it is recognized the need for a general requirement for receiver immunity to relatively high interference
signals generated by any source and at any frequency in the same range identified as spurious domain by CEPT/ERC
Recommendation 74-01 [1].
Some ETSI deliverables for DFRS provide limits for both "external" and "internal" spurious domain emissions and the
latter are outside the scope of the present document. Moreover the limits for emissions given in the present document do
not prevent more stringent requirement given in those deliverables for intra-system purpose (i.e. local Transmitter to
Receiver interference usually referred as "internal").
In order to help the understanding of limits given in CEPT/ERC Recommendation 74-01 [1], in annex B, unwanted
emissions in the spurious domain are analysed from the point of view of a suitable test method for conformance testing.
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 a specific reference, only the cited version applies. For a non-specific reference, 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] CEPT/ERC Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
[2] Void.
[3] ETSI EN 301 126-1: "Fixed Radio Systems; Conformance testing; Part 1: Point-to-Point
equipment - Definitions, general requirements and test procedures".
[4] ETSI EN 301 126-2-1: "Fixed Radio Systems; Conformance testing; Part 2-1: Point-to-Multipoint
equipment; Definitions and general requirements".
[5] ETSI EN 301 126-2-2: "Fixed Radio Systems; Conformance testing; Part 2-2: Point-to-Multipoint
equipment; Test procedures for FDMA systems".
[6] ETSI EN 301 126-2-3: "Fixed Radio Systems; Conformance testing; Part 2-3: Point-to-Multipoint
equipment; Test procedures for TDMA systems".
[7] ETSI EN 301 126-2-4: "Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint
equipment; Test procedures for FH-CDMA systems".
ETSI
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SIST EN 301 390 V2.1.1:2022
7 ETSI EN 301 390 V2.1.1 (2021-11)
[8] ETSI EN 301 126-2-5: "Fixed Radio Systems; Conformance testing; Part 2-5: Point-to-Multipoint
equipment; Test procedures for DS-CDMA systems".
[9] ETSI EN 301 126-2-6: "Fixed Radio Systems; Conformance testing; Part 2-6: Point-to-Multipoint
equipment; Test procedures for Multi Carrier Time Division Multiple Access (MC-TDMA)
systems".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For a specific reference, only the cited version applies. For a non-specific reference, 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] Void.
[i.2] Void.
[i.3] Void.
[i.4] Void.
[i.5] Void.
[i.6] Void.
[i.7] 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.8] ETSI EN 302 217-1: "Fixed Radio Systems; Characteristics and requirements for point-to-point
equipment and antennas; Part 1: Overview, common characteristics and requirements not related to
access to radio spectrum".
[i.9] ETSI TR 101 036-1: "Fixed Radio Systems; Generic wordings for standards on DFRS (Digital
Fixed Radio Systems) characteristics; Part 1: General aspects and point-to-point equipment
parameters".
[i.10] Recommendation ITU-R F.746-10: "Radio-frequency arrangements for fixed service systems".
[i.11] 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.12] ITU-R Radio Regulations (2020).
[i.13] Recommendation ITU-R SM.329-12: "Unwanted emissions in the spurious domain".
[i.14] Recommendation ITU-R SM.1539-1: "Variation of the boundary between the out-of-band and
spurious domains required for the application of Recommendations ITU-R SM.1541 and ITU-R
SM.329".
[i.15] Recommendation ITU-R F.1191-3: "Necessary and occupied bandwidths and unwanted emissions
of digital fixed service systems".
[i.16] ECC Report 100: "Compatibility Studies in the Band 3400- 3800 MHz between Broadband
Wireless Access (BWA) Systems and other Services".
ETSI
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SIST EN 301 390 V2.1.1:2022
8 ETSI EN 301 390 V2.1.1 (2021-11)
[i.17] EC REF:Ares(2019)5616840 - Further response to the EC on ERC/REC 74-01 for ETSI X-band
radar standards.
NOTE: Available as ECC(20)093 Annex 14 (CEPT website password required).
[i.18] ECC Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
boundary between out-of-band and spurious domains: frequency limit that subdivides the two domains and the
applicability of relevant requirements
NOTE: Recommendations ITU-R SM.329-12 [i.13] and SM.1539-1 [i.14] describe the possible application to all
radio emissions. Recommendation ITU-R F.1191-3 [i.15] details it for Fixed Service systems.
Broadband Wireless Access (BWA) system: access system used for the deployment of radio access networks in both
the fixed service and the mobile service
NOTE: BWA applications were introduced by ECC Report 100 [i.16] as:
"BWA systems were considered in the report, covering various BWA usage modes, i.e. Fixed (FWA),
Nomadic (NWA) and Mobile (MWA) Wireless Access".
Therefore, the technology of BWA may indifferently refer to the fixed or the mobile service regulation.
Channel Separation (CS): distance between adjacent channels in a radio frequency channels arrangement (defined in
ECC or ITU-R or national recommendations)
NOTE 1: It represents one of the major parameters for the identification of the radio equipment use and relevant
requirements.
NOTE 2: Some channel arrangements give only a continuous raster of elementary frequency slots for composing
multiple (N × elementary slot) aggregated channels of various size. In this case the actual CS would be
equal to the N × elementary slot used by the radio system. When no channel arrangement or elementary
slot raster is defined in the band of operation of the radio system, the occupied bandwidth should be
considered in substitution of the CS.
Continuous Wave (CW) signal: signal with spectral emission on a single frequency only
NOTE: Unavoidable phase-noise spectral components of the CW source are not to be taken into account.
EN: European Standard (Telecommunications series)
evaluation bandwidth: bandwidth where the spurious domain emission limits are measured (e.g. the spectrum analyser
resolution bandwidth) for further normalization/integration to the reference bandwidth
Gross Symbol Frequency G : the maximum frequency of variance of the different states of the modulator
SF)
(e.g. 256 states for 256 QAM modulation formats); it is equal to the maximum (gross) bit rate (i.e. inclusive of any
payloads, control and service data, overhead and error correction codes to be transmitted) divided by the modulation
n
index "n" (e.g. n = 8 for 2 =256 in 256 QAM)
necessary bandwidth (1.152 of Radio Regulations [i.12]):
"For a given class of emission, the width of the frequency band which is just sufficient to ensure the transmission of
information at the rate and with the quality required under specified conditions"
NOTE: Recommendation ITU-R F.1191-3 [i.15] establishes that for DFRS the necessary bandwidth is considered
coincident with the occupied bandwidth.
noise-like emissions: emissions characterized by a distributed power density within the reference and evaluation
bandwidths
ETSI
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SIST EN 301 390 V2.1.1:2022
9 ETSI EN 301 390 V2.1.1 (2021-11)
occupied bandwidth (1.153 of Radio Regulations [i.12]):
"width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted
are each equal to a specified percentage β/2 of the total mean power of a given emission (Radio Regulations [i.12])"
NOTE: For the purpose of the present document, β/2 is assumed to be equal to 0,5 % (Recommendation ITU-R
F.1191-3 [i.15]).
out-of-band domain (of an emission) (1.146A of Radio Regulations [i.12]):
"frequency range, immediately outside the necessary bandwidth but excluding the spurious domain, in which
out-of-band emissions generally predominate.
Out-of-band emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the
spurious domain. Spurious emissions likewise may occur in the out-of-band domain as well as in the spurious domain.
However, the limit in the out-of-band-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
receiver spurious emissions: spurious sent backwards to the antenna port by a receiver
NOTE: Sometimes they are also referenced as "spurious radiations".
reference bandwidth: bandwidth where the spurious emission limits are defined
NOTE: See also Recommendation ITU-R SM.329-12 [i.13].
spurious domain (of an emission) (1.146B of Radio Regulations [i.12]):
"frequency range beyond the out-of-band domain in which spurious emissions generally predominate.
Spurious emissions may occur in the out-of-band domain as well as in the spurious domain. Likewise out-of-band
emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the spurious
domain. However, the limit in the spurious-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
unwanted emissions (1.146 of Radio Regulations [i.12]):
"emissions composed by out-of-band and spurious emissions"
unwanted emissions in the out-of-band domain: any unwanted emission, outside the channel bandwidth, which falls
at frequencies separated from the centre frequency of the emission by less than 250 % (see note) of the relevant
Channel Separation (CS), where the system is intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
unwanted emissions in the spurious domain : any unwanted emission which falls at frequencies separated from the
centre frequency of the emission by 250 % (see note) or more of the relevant channel separation, where the system is
intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dBc deciBels relative to carrier mean power
dBi deciBel relative to an isotropic radiator
dBm de
...
ETSI EN 301 390 V2.1.1 (2021-11)
EUROPEAN STANDARD
Fixed Radio Systems;
Point-to-point and Multipoint Systems;
Unwanted emissions in the spurious domain and
receiver immunity limits at equipment/antenna
port of Digital Fixed Radio Systems
---------------------- Page: 1 ----------------------
2 ETSI EN 301 390 V2.1.1 (2021-11)
Reference
REN/ATTM-0452
Keywords
emission, FWS, immunity, multipoint, point-to-point
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 - 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
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
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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
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3 ETSI EN 301 390 V2.1.1 (2021-11)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 9
3.3 Abbreviations . 10
4 Transmitter unwanted emissions in the spurious domain at antenna port . 11
4.1 Background . 11
4.2 Limits . 11
4.2.0 Generality . 11
4.2.1 Point-to-point equipment . 12
4.2.2 Multipoint equipment . 12
4.2.3 Broadband Wireless Access equipment operating between 1 GHz and 6 GHz . 12
5 Receiver spurious emissions at the antenna port . 12
6 Spurious domain emissions test method. 12
7 Receiver immunity at antenna port . 12
7.0 Definitions . 12
7.1 Limits . 13
7.2 Receiver immunity test method . 14
Annex A (informative): Application of CEPT/ERC Recommendation 74-01 . 15
A.0 Introduction . 15
A.1 Frequency range of applicability . 15
A.2 Level limits . 17
A.3 Reference bandwidths . 18
A.4 Detailed application of the reference bandwidths reported in table A.3 . 23
A.4.0 Foreword . 23
A.4.1 P-P and P-MP systems with fundamental emissions from 30 MHz to 1 GHz. 23
A.4.2 P-P and P-MP systems with fundamental emissions from 1 GHz to 21,2 GHz . 23
A.4.3 P-P and P-MP systems with fundamental emissions above 21,2 GHz . 24
Annex B (informative): Measurement background . 25
B.1 Spectrum analyser capability . 25
B.2 Application examples . 26
History . 32
ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 301 390 V2.1.1 (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 European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission and
Multiplexing (ATTM).
National transposition dates
Date of adoption of this EN: 25 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 2022
Major changes with respect to previous version
This revision is consequent to 2019 revision of CEPT/ERC Recommendation 74-01 [1], which revised the resolution
bandwidth staircase for the limits of unwanted emissions in the spurious domain also for system with channel
separation higher than 28 MHz and added specific limits for "channels-aggregation" systems as defined in ETSI
EN 302 217-2 [i.7]. In addition, standing the poor penetration of multipoint systems in the so-called HDFS (High
Density Fixed Service) bands (see 5.547 in the Radio Regulations [i.12]), limits for multipoint equipment with
fundamental emission above 21,2 GHz have also been aligned to those required by CEPT/ERC Recommendation
74-01 [1].
Examples in clause B.2 have been updated as appropriate.
ETSI
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5 ETSI EN 301 390 V2.1.1 (2021-11)
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.
Introduction
The term Spurious emissions is used for simplicity elsewhere in the present document but with the more broader
meaning of "unwanted emissions in the spurious domain" introduced by Recommendation ITU-R SM.329-12 [i.13] for
clarifying the Radio Regulation definitions and the application of recommended limits for all unwanted emissions; it
also recommends that spurious emissions limits apply to all unwanted emissions falling in the spurious domain.
Therefore the present document deals with limits for unwanted emissions in the spurious domain at antenna port of
Digital Fixed Radio Systems (DFRS) as defined by Recommendation ITU-R SM.329-12 [i.13], CEPT/ERC
Recommendation 74-01 [1] and ECC Recommendation (02)05 [i.18].
Moreover it covers characteristics of immunity from interference at receiver's antenna port.
Unwanted emissions in the spurious domain and immunity performance at antenna port are also relevant to essential
requirements under article 3.2 of Directive 2014/53/EU [i.11] on Radio Equipment (RED).
Additional considerations and background for producing the present document are:
- Recommendation ITU-R SM.329-12 [i.13] considers emissions from any system, including digital modulation
and allows options for the definition of the frequency boundary between out-of-band domain and spurious
domain. It recommends different category of level limits applicable to the Fixed Service;
- Recommendation ITU-R SM.1539-1 [i.14] describes the application of the boundary concept between
out-of-band and spurious domains;
- Recommendation ITU-R F.1191-3 [i.15] defines the application of Radio Regulations [i.12] and the concepts
of out-of-band, unwanted and spurious emissions to DFRS, clarify the applicability for the boundary between
out-of-band and Spurious emissions domains but maintain the same possible limit options provided by
Recommendation ITU-R SM.329-12 [i.13];
- CEPT/ERC Recommendation 74-01 [1] endorses only the more stringent Category B limits of
Recommendation ITU-R SM.329-12 [i.13];
- for the purpose of Directive 2014/53/EU [i.11], the emissions and immunity at antenna port fall under its
article 3.2 requirements for "effective use of spectrum" and "avoidance of harmful interference";
- it is convenient to maintain a single ETSI EN covering these parameters instead of replicating them on each
single product standard, avoiding possible deviation from what required by other CEPT and ITU-R normative;
- limits for unwanted emissions in the spurious domain are supposed to be fixed in view of inter-working
compatibility among various Fixed Radio Systems in same or different band exploited in the same area;
- the measurement of the required limits should also be feasible in a suitable and cost effective conformance test
(annex B gives also information in this field);
- it is necessary that DFRS receivers provide a minimum level of immunity at antenna port towards possible
interference at any frequency band of practical interest;
- a suitable and easy to perform criterion for DFRS receivers immunity at antenna port may be considered the
application of a CW interference.
ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 301 390 V2.1.1 (2021-11)
1 Scope
The scope of the present document is to define specific limits at antenna port for unwanted emissions in the spurious
domain and receiver immunity for suitable inter-working of Digital Fixed Radio Systems (i.e. Point-to-point and
Multipoint systems) in the same or in different frequency band whenever allocated to Fixed Service in the range 9 kHz
to 300 GHz.
However systems with fundamental emission below 30 MHz are not considered relevant for Digital Fixed Radio
Systems and are outside the scope of the present document.
The present document adopts CEPT/ERC Recommendation 74-01 [1] which gives limits for Unwanted emissions in the
Spurious domain with particular regards to "inter Services" operations.
In addition, it is recognized the need for a general requirement for receiver immunity to relatively high interference
signals generated by any source and at any frequency in the same range identified as spurious domain by CEPT/ERC
Recommendation 74-01 [1].
Some ETSI deliverables for DFRS provide limits for both "external" and "internal" spurious domain emissions and the
latter are outside the scope of the present document. Moreover the limits for emissions given in the present document do
not prevent more stringent requirement given in those deliverables for intra-system purpose (i.e. local Transmitter to
Receiver interference usually referred as "internal").
In order to help the understanding of limits given in CEPT/ERC Recommendation 74-01 [1], in annex B, unwanted
emissions in the spurious domain are analysed from the point of view of a suitable test method for conformance testing.
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 a specific reference, only the cited version applies. For a non-specific reference, 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] CEPT/ERC Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
[2] Void.
[3] ETSI EN 301 126-1: "Fixed Radio Systems; Conformance testing; Part 1: Point-to-Point
equipment - Definitions, general requirements and test procedures".
[4] ETSI EN 301 126-2-1: "Fixed Radio Systems; Conformance testing; Part 2-1: Point-to-Multipoint
equipment; Definitions and general requirements".
[5] ETSI EN 301 126-2-2: "Fixed Radio Systems; Conformance testing; Part 2-2: Point-to-Multipoint
equipment; Test procedures for FDMA systems".
[6] ETSI EN 301 126-2-3: "Fixed Radio Systems; Conformance testing; Part 2-3: Point-to-Multipoint
equipment; Test procedures for TDMA systems".
[7] ETSI EN 301 126-2-4: "Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint
equipment; Test procedures for FH-CDMA systems".
ETSI
---------------------- Page: 6 ----------------------
7 ETSI EN 301 390 V2.1.1 (2021-11)
[8] ETSI EN 301 126-2-5: "Fixed Radio Systems; Conformance testing; Part 2-5: Point-to-Multipoint
equipment; Test procedures for DS-CDMA systems".
[9] ETSI EN 301 126-2-6: "Fixed Radio Systems; Conformance testing; Part 2-6: Point-to-Multipoint
equipment; Test procedures for Multi Carrier Time Division Multiple Access (MC-TDMA)
systems".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For a specific reference, only the cited version applies. For a non-specific reference, 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] Void.
[i.2] Void.
[i.3] Void.
[i.4] Void.
[i.5] Void.
[i.6] Void.
[i.7] 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.8] ETSI EN 302 217-1: "Fixed Radio Systems; Characteristics and requirements for point-to-point
equipment and antennas; Part 1: Overview, common characteristics and requirements not related to
access to radio spectrum".
[i.9] ETSI TR 101 036-1: "Fixed Radio Systems; Generic wordings for standards on DFRS (Digital
Fixed Radio Systems) characteristics; Part 1: General aspects and point-to-point equipment
parameters".
[i.10] Recommendation ITU-R F.746-10: "Radio-frequency arrangements for fixed service systems".
[i.11] 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.12] ITU-R Radio Regulations (2020).
[i.13] Recommendation ITU-R SM.329-12: "Unwanted emissions in the spurious domain".
[i.14] Recommendation ITU-R SM.1539-1: "Variation of the boundary between the out-of-band and
spurious domains required for the application of Recommendations ITU-R SM.1541 and ITU-R
SM.329".
[i.15] Recommendation ITU-R F.1191-3: "Necessary and occupied bandwidths and unwanted emissions
of digital fixed service systems".
[i.16] ECC Report 100: "Compatibility Studies in the Band 3400- 3800 MHz between Broadband
Wireless Access (BWA) Systems and other Services".
ETSI
---------------------- Page: 7 ----------------------
8 ETSI EN 301 390 V2.1.1 (2021-11)
[i.17] EC REF:Ares(2019)5616840 - Further response to the EC on ERC/REC 74-01 for ETSI X-band
radar standards.
NOTE: Available as ECC(20)093 Annex 14 (CEPT website password required).
[i.18] ECC Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
boundary between out-of-band and spurious domains: frequency limit that subdivides the two domains and the
applicability of relevant requirements
NOTE: Recommendations ITU-R SM.329-12 [i.13] and SM.1539-1 [i.14] describe the possible application to all
radio emissions. Recommendation ITU-R F.1191-3 [i.15] details it for Fixed Service systems.
Broadband Wireless Access (BWA) system: access system used for the deployment of radio access networks in both
the fixed service and the mobile service
NOTE: BWA applications were introduced by ECC Report 100 [i.16] as:
"BWA systems were considered in the report, covering various BWA usage modes, i.e. Fixed (FWA),
Nomadic (NWA) and Mobile (MWA) Wireless Access".
Therefore, the technology of BWA may indifferently refer to the fixed or the mobile service regulation.
Channel Separation (CS): distance between adjacent channels in a radio frequency channels arrangement (defined in
ECC or ITU-R or national recommendations)
NOTE 1: It represents one of the major parameters for the identification of the radio equipment use and relevant
requirements.
NOTE 2: Some channel arrangements give only a continuous raster of elementary frequency slots for composing
multiple (N × elementary slot) aggregated channels of various size. In this case the actual CS would be
equal to the N × elementary slot used by the radio system. When no channel arrangement or elementary
slot raster is defined in the band of operation of the radio system, the occupied bandwidth should be
considered in substitution of the CS.
Continuous Wave (CW) signal: signal with spectral emission on a single frequency only
NOTE: Unavoidable phase-noise spectral components of the CW source are not to be taken into account.
EN: European Standard (Telecommunications series)
evaluation bandwidth: bandwidth where the spurious domain emission limits are measured (e.g. the spectrum analyser
resolution bandwidth) for further normalization/integration to the reference bandwidth
Gross Symbol Frequency G : the maximum frequency of variance of the different states of the modulator
SF)
(e.g. 256 states for 256 QAM modulation formats); it is equal to the maximum (gross) bit rate (i.e. inclusive of any
payloads, control and service data, overhead and error correction codes to be transmitted) divided by the modulation
n
index "n" (e.g. n = 8 for 2 =256 in 256 QAM)
necessary bandwidth (1.152 of Radio Regulations [i.12]):
"For a given class of emission, the width of the frequency band which is just sufficient to ensure the transmission of
information at the rate and with the quality required under specified conditions"
NOTE: Recommendation ITU-R F.1191-3 [i.15] establishes that for DFRS the necessary bandwidth is considered
coincident with the occupied bandwidth.
noise-like emissions: emissions characterized by a distributed power density within the reference and evaluation
bandwidths
ETSI
---------------------- Page: 8 ----------------------
9 ETSI EN 301 390 V2.1.1 (2021-11)
occupied bandwidth (1.153 of Radio Regulations [i.12]):
"width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted
are each equal to a specified percentage β/2 of the total mean power of a given emission (Radio Regulations [i.12])"
NOTE: For the purpose of the present document, β/2 is assumed to be equal to 0,5 % (Recommendation ITU-R
F.1191-3 [i.15]).
out-of-band domain (of an emission) (1.146A of Radio Regulations [i.12]):
"frequency range, immediately outside the necessary bandwidth but excluding the spurious domain, in which
out-of-band emissions generally predominate.
Out-of-band emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the
spurious domain. Spurious emissions likewise may occur in the out-of-band domain as well as in the spurious domain.
However, the limit in the out-of-band-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
receiver spurious emissions: spurious sent backwards to the antenna port by a receiver
NOTE: Sometimes they are also referenced as "spurious radiations".
reference bandwidth: bandwidth where the spurious emission limits are defined
NOTE: See also Recommendation ITU-R SM.329-12 [i.13].
spurious domain (of an emission) (1.146B of Radio Regulations [i.12]):
"frequency range beyond the out-of-band domain in which spurious emissions generally predominate.
Spurious emissions may occur in the out-of-band domain as well as in the spurious domain. Likewise out-of-band
emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the spurious
domain. However, the limit in the spurious-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
unwanted emissions (1.146 of Radio Regulations [i.12]):
"emissions composed by out-of-band and spurious emissions"
unwanted emissions in the out-of-band domain: any unwanted emission, outside the channel bandwidth, which falls
at frequencies separated from the centre frequency of the emission by less than 250 % (see note) of the relevant
Channel Separation (CS), where the system is intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
unwanted emissions in the spurious domain : any unwanted emission which falls at frequencies separated from the
centre frequency of the emission by 250 % (see note) or more of the relevant channel separation, where the system is
intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dBc deciBels relative to carrier mean power
dBi deciBel relative to an isotropic radiator
dBm deciBels relative to milliwatt
GHz GigaHertz
kHz kiloHertz
MHz MegaHertz
ETSI
---------------------- Page: 9 ----------------------
10 ETSI EN 301 390 V2.1.1 (2021-11)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATe external ATtenuator
ATi internal spectrum analyser input ATtenuator
ATPC Automatic Transmission Power Control
BER Bit Error Rate
BS Base (Master) Station of a P-MP system
BW BandWidth
BWA Broadband Wireless Access
BWe evaluation BandWidth for spectral measurement
NOTE: I.e. spectrum analyser resolution bandwidth.
BWr reference BandWidth
CEPT Conférence Européenne des administrations des Postes et des Télécommunications
(European Conference of Postal and Telecommunications administrations)
CS Channel Separation
CW Continuous Wave
DFRS Digital Fixed Radio Systems
DUT Device Under Test
EC European Commission
ECC Electronic Communication Committee of the CEPT
EN European Norm
ERC European Radiocommunications Committee of the CEPT, presently become ECC
Fc cut-off Frequency
FS Fixed Service
G Gross Symbol Frequency
SF
HDFS High Density Fixed Service
i.m.p. intermodulation products
IM InterModulation
ITU-R International Telecommunication Un
...
SLOVENSKI STANDARD
SIST EN 301 390 V2.1.1:2022
01-februar-2022
Fiksni radijski sistemi - Sistemi točka-točka in večtočkovni sistemi - Neželena
oddajanja in omejitve odpornosti sprejemnika pri vhodu v opremo oziroma pri
antenskem vhodu digitalnih fiksnih radijskih sistemov
Fixed Radio Systems - Point-to-point and Multipoint Systems - Unwanted emissions in
the spurious domain and receiver immunity limits at equipment/antenna port of Digital
Fixed Radio Systems
Ta slovenski standard je istoveten z: ETSI EN 301 390 V2.1.1 (2021-11)
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
33.100.10 Emisija Emission
SIST EN 301 390 V2.1.1:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 301 390 V2.1.1:2022
---------------------- Page: 2 ----------------------
SIST EN 301 390 V2.1.1:2022
ETSI EN 301 390 V2.1.1 (2021-11)
EUROPEAN STANDARD
Fixed Radio Systems;
Point-to-point and Multipoint Systems;
Unwanted emissions in the spurious domain and
receiver immunity limits at equipment/antenna
port of Digital Fixed Radio Systems
---------------------- Page: 3 ----------------------
SIST EN 301 390 V2.1.1:2022
2 ETSI EN 301 390 V2.1.1 (2021-11)
Reference
REN/ATTM-0452
Keywords
emission, FWS, immunity, multipoint, point-to-point
ETSI
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Important notice
The present document can be downloaded from:
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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
---------------------- Page: 4 ----------------------
SIST EN 301 390 V2.1.1:2022
3 ETSI EN 301 390 V2.1.1 (2021-11)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 9
3.3 Abbreviations . 10
4 Transmitter unwanted emissions in the spurious domain at antenna port . 11
4.1 Background . 11
4.2 Limits . 11
4.2.0 Generality . 11
4.2.1 Point-to-point equipment . 12
4.2.2 Multipoint equipment . 12
4.2.3 Broadband Wireless Access equipment operating between 1 GHz and 6 GHz . 12
5 Receiver spurious emissions at the antenna port . 12
6 Spurious domain emissions test method. 12
7 Receiver immunity at antenna port . 12
7.0 Definitions . 12
7.1 Limits . 13
7.2 Receiver immunity test method . 14
Annex A (informative): Application of CEPT/ERC Recommendation 74-01 . 15
A.0 Introduction . 15
A.1 Frequency range of applicability . 15
A.2 Level limits . 17
A.3 Reference bandwidths . 18
A.4 Detailed application of the reference bandwidths reported in table A.3 . 23
A.4.0 Foreword . 23
A.4.1 P-P and P-MP systems with fundamental emissions from 30 MHz to 1 GHz. 23
A.4.2 P-P and P-MP systems with fundamental emissions from 1 GHz to 21,2 GHz . 23
A.4.3 P-P and P-MP systems with fundamental emissions above 21,2 GHz . 24
Annex B (informative): Measurement background . 25
B.1 Spectrum analyser capability . 25
B.2 Application examples . 26
History . 32
ETSI
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SIST EN 301 390 V2.1.1:2022
4 ETSI EN 301 390 V2.1.1 (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 European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission and
Multiplexing (ATTM).
National transposition dates
Date of adoption of this EN: 25 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 2022
Major changes with respect to previous version
This revision is consequent to 2019 revision of CEPT/ERC Recommendation 74-01 [1], which revised the resolution
bandwidth staircase for the limits of unwanted emissions in the spurious domain also for system with channel
separation higher than 28 MHz and added specific limits for "channels-aggregation" systems as defined in ETSI
EN 302 217-2 [i.7]. In addition, standing the poor penetration of multipoint systems in the so-called HDFS (High
Density Fixed Service) bands (see 5.547 in the Radio Regulations [i.12]), limits for multipoint equipment with
fundamental emission above 21,2 GHz have also been aligned to those required by CEPT/ERC Recommendation
74-01 [1].
Examples in clause B.2 have been updated as appropriate.
ETSI
---------------------- Page: 6 ----------------------
SIST EN 301 390 V2.1.1:2022
5 ETSI EN 301 390 V2.1.1 (2021-11)
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.
Introduction
The term Spurious emissions is used for simplicity elsewhere in the present document but with the more broader
meaning of "unwanted emissions in the spurious domain" introduced by Recommendation ITU-R SM.329-12 [i.13] for
clarifying the Radio Regulation definitions and the application of recommended limits for all unwanted emissions; it
also recommends that spurious emissions limits apply to all unwanted emissions falling in the spurious domain.
Therefore the present document deals with limits for unwanted emissions in the spurious domain at antenna port of
Digital Fixed Radio Systems (DFRS) as defined by Recommendation ITU-R SM.329-12 [i.13], CEPT/ERC
Recommendation 74-01 [1] and ECC Recommendation (02)05 [i.18].
Moreover it covers characteristics of immunity from interference at receiver's antenna port.
Unwanted emissions in the spurious domain and immunity performance at antenna port are also relevant to essential
requirements under article 3.2 of Directive 2014/53/EU [i.11] on Radio Equipment (RED).
Additional considerations and background for producing the present document are:
- Recommendation ITU-R SM.329-12 [i.13] considers emissions from any system, including digital modulation
and allows options for the definition of the frequency boundary between out-of-band domain and spurious
domain. It recommends different category of level limits applicable to the Fixed Service;
- Recommendation ITU-R SM.1539-1 [i.14] describes the application of the boundary concept between
out-of-band and spurious domains;
- Recommendation ITU-R F.1191-3 [i.15] defines the application of Radio Regulations [i.12] and the concepts
of out-of-band, unwanted and spurious emissions to DFRS, clarify the applicability for the boundary between
out-of-band and Spurious emissions domains but maintain the same possible limit options provided by
Recommendation ITU-R SM.329-12 [i.13];
- CEPT/ERC Recommendation 74-01 [1] endorses only the more stringent Category B limits of
Recommendation ITU-R SM.329-12 [i.13];
- for the purpose of Directive 2014/53/EU [i.11], the emissions and immunity at antenna port fall under its
article 3.2 requirements for "effective use of spectrum" and "avoidance of harmful interference";
- it is convenient to maintain a single ETSI EN covering these parameters instead of replicating them on each
single product standard, avoiding possible deviation from what required by other CEPT and ITU-R normative;
- limits for unwanted emissions in the spurious domain are supposed to be fixed in view of inter-working
compatibility among various Fixed Radio Systems in same or different band exploited in the same area;
- the measurement of the required limits should also be feasible in a suitable and cost effective conformance test
(annex B gives also information in this field);
- it is necessary that DFRS receivers provide a minimum level of immunity at antenna port towards possible
interference at any frequency band of practical interest;
- a suitable and easy to perform criterion for DFRS receivers immunity at antenna port may be considered the
application of a CW interference.
ETSI
---------------------- Page: 7 ----------------------
SIST EN 301 390 V2.1.1:2022
6 ETSI EN 301 390 V2.1.1 (2021-11)
1 Scope
The scope of the present document is to define specific limits at antenna port for unwanted emissions in the spurious
domain and receiver immunity for suitable inter-working of Digital Fixed Radio Systems (i.e. Point-to-point and
Multipoint systems) in the same or in different frequency band whenever allocated to Fixed Service in the range 9 kHz
to 300 GHz.
However systems with fundamental emission below 30 MHz are not considered relevant for Digital Fixed Radio
Systems and are outside the scope of the present document.
The present document adopts CEPT/ERC Recommendation 74-01 [1] which gives limits for Unwanted emissions in the
Spurious domain with particular regards to "inter Services" operations.
In addition, it is recognized the need for a general requirement for receiver immunity to relatively high interference
signals generated by any source and at any frequency in the same range identified as spurious domain by CEPT/ERC
Recommendation 74-01 [1].
Some ETSI deliverables for DFRS provide limits for both "external" and "internal" spurious domain emissions and the
latter are outside the scope of the present document. Moreover the limits for emissions given in the present document do
not prevent more stringent requirement given in those deliverables for intra-system purpose (i.e. local Transmitter to
Receiver interference usually referred as "internal").
In order to help the understanding of limits given in CEPT/ERC Recommendation 74-01 [1], in annex B, unwanted
emissions in the spurious domain are analysed from the point of view of a suitable test method for conformance testing.
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 a specific reference, only the cited version applies. For a non-specific reference, 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] CEPT/ERC Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
[2] Void.
[3] ETSI EN 301 126-1: "Fixed Radio Systems; Conformance testing; Part 1: Point-to-Point
equipment - Definitions, general requirements and test procedures".
[4] ETSI EN 301 126-2-1: "Fixed Radio Systems; Conformance testing; Part 2-1: Point-to-Multipoint
equipment; Definitions and general requirements".
[5] ETSI EN 301 126-2-2: "Fixed Radio Systems; Conformance testing; Part 2-2: Point-to-Multipoint
equipment; Test procedures for FDMA systems".
[6] ETSI EN 301 126-2-3: "Fixed Radio Systems; Conformance testing; Part 2-3: Point-to-Multipoint
equipment; Test procedures for TDMA systems".
[7] ETSI EN 301 126-2-4: "Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint
equipment; Test procedures for FH-CDMA systems".
ETSI
---------------------- Page: 8 ----------------------
SIST EN 301 390 V2.1.1:2022
7 ETSI EN 301 390 V2.1.1 (2021-11)
[8] ETSI EN 301 126-2-5: "Fixed Radio Systems; Conformance testing; Part 2-5: Point-to-Multipoint
equipment; Test procedures for DS-CDMA systems".
[9] ETSI EN 301 126-2-6: "Fixed Radio Systems; Conformance testing; Part 2-6: Point-to-Multipoint
equipment; Test procedures for Multi Carrier Time Division Multiple Access (MC-TDMA)
systems".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For a specific reference, only the cited version applies. For a non-specific reference, 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] Void.
[i.2] Void.
[i.3] Void.
[i.4] Void.
[i.5] Void.
[i.6] Void.
[i.7] 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.8] ETSI EN 302 217-1: "Fixed Radio Systems; Characteristics and requirements for point-to-point
equipment and antennas; Part 1: Overview, common characteristics and requirements not related to
access to radio spectrum".
[i.9] ETSI TR 101 036-1: "Fixed Radio Systems; Generic wordings for standards on DFRS (Digital
Fixed Radio Systems) characteristics; Part 1: General aspects and point-to-point equipment
parameters".
[i.10] Recommendation ITU-R F.746-10: "Radio-frequency arrangements for fixed service systems".
[i.11] 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.12] ITU-R Radio Regulations (2020).
[i.13] Recommendation ITU-R SM.329-12: "Unwanted emissions in the spurious domain".
[i.14] Recommendation ITU-R SM.1539-1: "Variation of the boundary between the out-of-band and
spurious domains required for the application of Recommendations ITU-R SM.1541 and ITU-R
SM.329".
[i.15] Recommendation ITU-R F.1191-3: "Necessary and occupied bandwidths and unwanted emissions
of digital fixed service systems".
[i.16] ECC Report 100: "Compatibility Studies in the Band 3400- 3800 MHz between Broadband
Wireless Access (BWA) Systems and other Services".
ETSI
---------------------- Page: 9 ----------------------
SIST EN 301 390 V2.1.1:2022
8 ETSI EN 301 390 V2.1.1 (2021-11)
[i.17] EC REF:Ares(2019)5616840 - Further response to the EC on ERC/REC 74-01 for ETSI X-band
radar standards.
NOTE: Available as ECC(20)093 Annex 14 (CEPT website password required).
[i.18] ECC Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
boundary between out-of-band and spurious domains: frequency limit that subdivides the two domains and the
applicability of relevant requirements
NOTE: Recommendations ITU-R SM.329-12 [i.13] and SM.1539-1 [i.14] describe the possible application to all
radio emissions. Recommendation ITU-R F.1191-3 [i.15] details it for Fixed Service systems.
Broadband Wireless Access (BWA) system: access system used for the deployment of radio access networks in both
the fixed service and the mobile service
NOTE: BWA applications were introduced by ECC Report 100 [i.16] as:
"BWA systems were considered in the report, covering various BWA usage modes, i.e. Fixed (FWA),
Nomadic (NWA) and Mobile (MWA) Wireless Access".
Therefore, the technology of BWA may indifferently refer to the fixed or the mobile service regulation.
Channel Separation (CS): distance between adjacent channels in a radio frequency channels arrangement (defined in
ECC or ITU-R or national recommendations)
NOTE 1: It represents one of the major parameters for the identification of the radio equipment use and relevant
requirements.
NOTE 2: Some channel arrangements give only a continuous raster of elementary frequency slots for composing
multiple (N × elementary slot) aggregated channels of various size. In this case the actual CS would be
equal to the N × elementary slot used by the radio system. When no channel arrangement or elementary
slot raster is defined in the band of operation of the radio system, the occupied bandwidth should be
considered in substitution of the CS.
Continuous Wave (CW) signal: signal with spectral emission on a single frequency only
NOTE: Unavoidable phase-noise spectral components of the CW source are not to be taken into account.
EN: European Standard (Telecommunications series)
evaluation bandwidth: bandwidth where the spurious domain emission limits are measured (e.g. the spectrum analyser
resolution bandwidth) for further normalization/integration to the reference bandwidth
Gross Symbol Frequency G : the maximum frequency of variance of the different states of the modulator
SF)
(e.g. 256 states for 256 QAM modulation formats); it is equal to the maximum (gross) bit rate (i.e. inclusive of any
payloads, control and service data, overhead and error correction codes to be transmitted) divided by the modulation
n
index "n" (e.g. n = 8 for 2 =256 in 256 QAM)
necessary bandwidth (1.152 of Radio Regulations [i.12]):
"For a given class of emission, the width of the frequency band which is just sufficient to ensure the transmission of
information at the rate and with the quality required under specified conditions"
NOTE: Recommendation ITU-R F.1191-3 [i.15] establishes that for DFRS the necessary bandwidth is considered
coincident with the occupied bandwidth.
noise-like emissions: emissions characterized by a distributed power density within the reference and evaluation
bandwidths
ETSI
---------------------- Page: 10 ----------------------
SIST EN 301 390 V2.1.1:2022
9 ETSI EN 301 390 V2.1.1 (2021-11)
occupied bandwidth (1.153 of Radio Regulations [i.12]):
"width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted
are each equal to a specified percentage β/2 of the total mean power of a given emission (Radio Regulations [i.12])"
NOTE: For the purpose of the present document, β/2 is assumed to be equal to 0,5 % (Recommendation ITU-R
F.1191-3 [i.15]).
out-of-band domain (of an emission) (1.146A of Radio Regulations [i.12]):
"frequency range, immediately outside the necessary bandwidth but excluding the spurious domain, in which
out-of-band emissions generally predominate.
Out-of-band emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the
spurious domain. Spurious emissions likewise may occur in the out-of-band domain as well as in the spurious domain.
However, the limit in the out-of-band-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
receiver spurious emissions: spurious sent backwards to the antenna port by a receiver
NOTE: Sometimes they are also referenced as "spurious radiations".
reference bandwidth: bandwidth where the spurious emission limits are defined
NOTE: See also Recommendation ITU-R SM.329-12 [i.13].
spurious domain (of an emission) (1.146B of Radio Regulations [i.12]):
"frequency range beyond the out-of-band domain in which spurious emissions generally predominate.
Spurious emissions may occur in the out-of-band domain as well as in the spurious domain. Likewise out-of-band
emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the spurious
domain. However, the limit in the spurious-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
unwanted emissions (1.146 of Radio Regulations [i.12]):
"emissions composed by out-of-band and spurious emissions"
unwanted emissions in the out-of-band domain: any unwanted emission, outside the channel bandwidth, which falls
at frequencies separated from the centre frequency of the emission by less than 250 % (see note) of the relevant
Channel Separation (CS), where the system is intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
unwanted emissions in the spurious domain : any unwanted emission which falls at frequencies separated from the
centre frequency of the emission by 250 % (see note) or more of the relevant channel separation, where the system is
intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dBc deciBels relative to carrier mean power
dBi deciBel relative to an isotropic radiator
d
...
Draft ETSI EN 301 390 V2.0.0 (2021-08)
EUROPEAN STANDARD
Fixed Radio Systems;
Point-to-point and Multipoint Systems;
Unwanted emissions in the spurious domain and
receiver immunity limits at
equipment/antenna port of Digital Fixed Radio Systems
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 301 390 V2.0.0 (2021-08)
Reference
REN/ATTM-0452
Keywords
emission, FWS, immunity, multipoint, point-to-point
ETSI
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© ETSI 2021.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 301 390 V2.0.0 (2021-08)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Transmitter unwanted emissions in the spurious domain at antenna port . 12
4.1 Background . 12
4.2 Limits . 12
4.2.0 Generality . 12
4.2.1 Point-to-point equipment . 12
4.2.2 Multipoint equipment . 13
4.2.3 Broadband Wireless Access equipment operating between 1 GHz and 6 GHz . 13
5 Receiver spurious emissions at the antenna port . 13
6 Spurious domain emissions test method. 13
7 Receiver immunity at antenna port . 13
7.0 Definitions . 13
7.1 Limits . 14
7.2 Receiver immunity test method . 15
Annex A (informative): Application of CEPT/ERC Recommendation 74-01 . 16
A.0 Introduction . 16
A.1 Frequency range of applicability . 16
A.2 Level limits . 18
A.3 Reference bandwidths . 19
A.4 Detailed application of the reference bandwidths reported in table A.3 . 24
A.4.0 Foreword . 24
A.4.1 P-P and P-MP systems with fundamental emissions from 30 MHz to 1 GHz. 24
A.4.2 P-P and P-MP systems with fundamental emissions from 1 GHz to 21,2 GHz . 24
A.4.3 P-P and P-MP systems with fundamental emissions above 21,2 GHz . 25
Annex B (informative): Measurement background . 26
B.1 Spectrum analyser capability . 26
B.2 Application examples . 27
History . 33
ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 301 390 V2.0.0 (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
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 draft European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission
and Multiplexing (ATTM), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI
standards EN Approval Procedure.
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): 6 months after doa
Major changes with respect to previous version
This revision is consequent to 2019 revision of CEPT/ERC Recommendation 74-01 [1], which revised the resolution
bandwidth staircase for the limits of unwanted emissions in the spurious domain also for system with channel
separation higher than 28 MHz and added specific limits for "channels-aggregation" systems as defined in ETSI
EN 302 217-2 [i.7]. In addition, standing the poor penetration of multipoint systems in the so-called HDFS (High
Density Fixed Service) bands (see 5.547 in the Radio Regulations [i.12]), limits for multipoint equipment with
fundamental emission above 21,2 GHz have also been aligned to those required by CEPT/ERC Recommendation
74-01 [1].
Examples in clause B.2 have been updated as appropriate.
ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 301 390 V2.0.0 (2021-08)
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
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 301 390 V2.0.0 (2021-08)
Introduction
The term Spurious emissions is used for simplicity elsewhere in the present document but with the more broader
meaning of "unwanted emissions in the spurious domain" introduced by Recommendation ITU-R SM.329-12 [i.13] for
clarifying the Radio Regulation definitions and the application of recommended limits for all unwanted emissions; it
also recommends that spurious emissions limits apply to all unwanted emissions falling in the spurious domain.
Therefore the present document deals with limits for unwanted emissions in the spurious domain at antenna port of
Digital Fixed Radio Systems (DFRS) as defined by Recommendation ITU-R SM.329-12 [i.13] and CEPT/ERC
Recommendation 74-01 [1] and ECC Recommendation (02)05 [i.18].
Moreover it covers characteristics of immunity from interference at receiver's antenna port.
Unwanted emissions in the spurious domain and immunity performance at antenna port are also relevant to essential
requirements under article 3.2 of Directive 2014/53/EU [i.11] on Radio Equipment (RED).
Additional considerations and background for producing the present document are:
- Recommendation ITU-R SM.329-12 [i.13] considers emissions from any system, including digital modulation
and allows options for the definition of the frequency boundary between out-of-band domain and spurious
domain. It recommends different category of level limits applicable to the Fixed Service;
- Recommendation ITU-R SM.1539-1 [i.14] describes the application of the boundary concept between
out-of-band and spurious domains;
- Recommendation ITU-R F.1191-3 [i.15] define the application of Radio Regulations [i.12] and the concepts of
out-of-band, unwanted and spurious emissions to DFRS, clarify the applicability for the boundary between
out-of-band and Spurious emissions domains but maintain the same possible limit options provided by
Recommendation ITU-R SM.329-12 [i.13];
- CEPT/ERC Recommendation 74-01 [1], endorses only the more stringent Category B limits of
Recommendation ITU-R SM.329-12 [i.13];
- for the purpose of Directive 2014/53/EU [i.11] the emissions and immunity at antenna port fall under its
article 3.2 requirements for "effective use of spectrum" and "avoidance of harmful interference";
- it is convenient to maintain a single ETSI EN covering these parameters instead of replicating them on each
single product standard, avoiding possible deviation from what required by other CEPT and ITU-R normative;
- limits for unwanted emissions in the spurious domain are supposed to be fixed in view of inter-working
compatibility among various Fixed Radio Systems in same or different band exploited in the same area;
- the measurement of the required limits should also be feasible in a suitable and cost effective conformance test
(annex B gives also information in this field);
- it is necessary that DFRS receivers provide a minimum level of immunity at antenna port towards possible
interference at any frequency band of practical interest;
- a suitable and easy to perform criterion for DFRS receivers immunity at antenna port may be considered the
application of a CW interference.
ETSI
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 301 390 V2.0.0 (2021-08)
1 Scope
The scope of the present document is to define specific limits at antenna port for unwanted emissions in the spurious
domain and receiver immunity for suitable inter-working of Digital Fixed Radio Systems (i.e. Point-to-point and
Multipoint systems) in the same or in different frequency band whenever allocated to Fixed Service in the range 9 kHz
to 300 GHz.
However systems with fundamental emission below 30 MHz are not considered relevant for Digital Fixed Radio
Systems and are outside the scope of the present document.
The present document adopts CEPT/ERC Recommendation 74-01 [1] which gives limits for Unwanted emissions in the
Spurious domain with particular regards to "inter Services" operations.
In addition, it is recognized the need for a general requirement for receiver immunity to relatively high interference
signals generated by any source and at any frequency in the same range identified as spurious domain by CEPT/ERC
Recommendation 74-01 [1].
Some ETSI deliverables for DFRS provide limits for both "external" and "internal" spurious domain emissions and the
latter are outside the scope of the present document. Moreover the limits for emissions given in the present document do
not prevent more stringent requirement given in those deliverables for intra-system purpose (i.e. local Transmitter to
Receiver interference usually referred as "internal").
In order to help the understanding of limits given in CEPT/ERC Recommendation 74-01 [1], in annex B, unwanted
emissions in the spurious domain are analysed from the point of view of a suitable test method for conformance testing.
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 a specific reference, only the cited version applies. For a non-specific reference, 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
http://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] CEPT/ERC Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
[2] Void.
[3] ETSI EN 301 126-1: "Fixed Radio Systems; Conformance testing; Part 1: Point-to-Point
equipment - Definitions, general requirements and test procedures".
[4] ETSI EN 301 126-2-1: "Fixed Radio Systems; Conformance testing; Part 2-1: Point-to-Multipoint
equipment; Definitions and general requirements".
[5] ETSI EN 301 126-2-2: "Fixed Radio Systems; Conformance testing; Part 2-2: Point-to-Multipoint
equipment; Test procedures for FDMA systems".
[6] ETSI EN 301 126-2-3: "Fixed Radio Systems; Conformance testing; Part 2-3: Point-to-Multipoint
equipment; Test procedures for TDMA systems".
[7] ETSI EN 301 126-2-4: "Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint
equipment; Test procedures for FH-CDMA systems".
ETSI
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8 Draft ETSI EN 301 390 V2.0.0 (2021-08)
[8] ETSI EN 301 126-2-5: "Fixed Radio Systems; Conformance testing; Part 2-5: Point-to-Multipoint
equipment; Test procedures for DS-CDMA systems".
[9] ETSI EN 301 126-2-6: "Fixed Radio Systems; Conformance testing; Part 2-6: Point-to-Multipoint
equipment; Test procedures for Multi Carrier Time Division Multiple Access (MC-TDMA)
systems".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For a specific reference, only the cited version applies. For a non-specific reference, 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] Void.
[i.2] Void.
[i.3] Void.
[i.4] Void.
[i.5] Void.
[i.6] Void.
[i.7] 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.8] ETSI EN 302 217-1: "Fixed Radio Systems; Characteristics and requirements for point-to-point
equipment and antennas; Part 1: Overview, common characteristics and requirements not related to
access to radio spectrum".
[i.9] ETSI TR 101 036-1: "Fixed Radio Systems; Generic wordings for standards on DFRS (Digital
Fixed Radio Systems) characteristics; Part 1: General aspects and point-to-point equipment
parameters".
[i.10] Recommendation ITU-R F.746-10: "Radio-frequency arrangements for fixed service systems".
[i.11] 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.12] ITU-R Radio Regulations (2020).
[i.13] Recommendation ITU-R SM.329-12: "Unwanted emissions in the spurious domain".
[i.14] Recommendation ITU-R SM.1539-1: "Variation of the boundary between the out-of-band and
spurious domains required for the application of Recommendations ITU-R SM.1541 and ITU-R
SM.329".
[i.15] Recommendation ITU-R F.1191-3: "Necessary and occupied bandwidths and unwanted emissions
of digital fixed service systems".
[i.16] ECC Report 100: "Compatibility Studies in the Band 3400- 3800 MHz between Broadband
Wireless Access (BWA) Systems and other Services".
ETSI
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9 Draft ETSI EN 301 390 V2.0.0 (2021-08)
[i.17] EC REF:Ares(2019)5616840 - Further response to the EC on ERC/REC 74-01 for ETSI X-band
radar standards.
NOTE: Available as ECC(20)093 Annex 14 (CEPT website password required).
[i.18] ECC Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
boundary between out-of-band and spurious domains: frequency limit that subdivides the two domains and the
applicability of relevant requirements
NOTE: Recommendations ITU-R SM.329-12 [i.13] and SM.1539-1 [i.14] describe the possible application to all
radio emissions. Recommendation ITU-R F.1191-3 [i.15] details it for Fixed Service systems.
Broadband Wireless Access (BWA) system: access system used for the deployment of radio access networks in both
the fixed service and the mobile service
NOTE: BWA applications were introduced by ECC Report 100 [i.16] as:
"BWA systems were considered in the report, covering various BWA usage modes, i.e. Fixed (FWA),
Nomadic (NWA) and Mobile (MWA) Wireless Access".
Therefore, the technology of BWA may indifferently refer to the fixed or the mobile service regulation.
Channel Separation (CS): distance between adjacent channels in a radio frequency channels arrangement (defined in
ECC or ITU-R or national recommendations)
NOTE 1: It represents one of the major parameters for the identification of the radio equipment use and relevant
requirements.
NOTE 2: Some channel arrangements give only a continuous raster of elementary frequency slots for composing
multiple (N × elementary slot) aggregated channels of various size. In this case the actual CS would be
equal to the N × elementary slot used by the radio system. When no channel arrangement or elementary
slot raster is defined in the band of operation of the radio system, the occupied bandwidth should be
considered in substitution of the CS.
Continuous wave (CW) signal: signal with spectral emission on a single frequency only
NOTE: Unavoidable phase-noise spectral components of the CW source are not to be taken into account.
EN: European Standard (Telecommunications series)
evaluation bandwidth: bandwidth where the spurious domain emission limits are measured (e.g. the spectrum analyser
resolution bandwidth) for further normalization/integration to the reference bandwidth
Gross Symbol Frequency G : the maximum frequency of variance of the different states of the modulator
SF)
(e.g. 256 states for 256 QAM modulation formats); it is equal to the maximum (gross) bit rate (i.e. inclusive of any
payloads, control and service data, overhead and error correction codes to be transmitted) divided by the modulation
n
index "n" (e.g. n = 8 for 2 =256 in 256 QAM)
necessary bandwidth (1.152 of Radio Regulations [i.12]):
"For a given class of emission, the width of the frequency band which is just sufficient to ensure the transmission of
information at the rate and with the quality required under specified conditions"
NOTE: Recommendation ITU-R F.1191-3 [i.15] establishes that for DFRS the necessary bandwidth is considered
coincident with the occupied bandwidth.
noise-like emissions: emissions characterized by a distributed power density within the reference and evaluation
bandwidths
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10 Draft ETSI EN 301 390 V2.0.0 (2021-08)
occupied bandwidth (1.153 of Radio Regulations [i.12]):
"width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted
β/2 of the total mean power of a given emission (Radio Regulations [i.12])"
are each equal to a specified percentage
NOTE: For the purpose of the present document, β/2 is assumed to be equal to 0,5 % (Recommendation ITU-R
F.1191-3 [i.15]).
out-of-band domain (of an emission) (1.146A of Radio Regulations [i.12]):
"frequency range, immediately outside the necessary bandwidth but excluding the spurious domain, in which
out-of-band emissions generally predominate.
Out-of-band emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the
spurious domain. Spurious emissions likewise may occur in the out-of-band domain as well as in the spurious domain.
However, the limit in the out-of-band-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
receiver spurious emissions: spurious sent backwards to the antenna port by a receiver
NOTE: Sometimes they are also referenced as "spurious radiations".
reference bandwidth: bandwidth where the spurious emission limits are defined
NOTE: See also Recommendation ITU-R SM.329-12 [i.13].
spurious domain (of an emission) (1.146B of Radio Regulations [i.12]):
"frequency range beyond the out-of-band domain in which spurious emissions generally predominate.
Spurious emissions may occur in the out-of-band domain as well as in the spurious domain. Likewise out-of-band
emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the spurious
domain. However, the limit in the spurious-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
unwanted emissions (1.146 of Radio Regulations [i.12]):
"emissions composed by out-of-band and spurious emissions"
unwanted emissions in the out-of-band domain: any unwanted emission, outside the channel bandwidth, which falls
at frequencies separated from the centre frequency of the emission by less than 250 % (see note) of the relevant
Channel Separation (CS), where the system is intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see
CEPT/ERC Recommendation 74-01 [1].
unwanted emissions in the spurious domain : any unwanted emission which falls at frequencies separated from the
centre frequency of the emission by 250 % (see note) or more of the relevant channel separation, where the system is
intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see CEPT/ERC
Recommendation 74-01 [1].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dBc deciBels relative to carrier mean power
dBi deciBel relative to an isotropic radiator
dBm deciBels relative to milliwatt
GHz GigaHertz
kHz kiloHertz
MHz MegaHertz
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATe external ATtenuator
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11 Draft ETSI EN 301 390 V2.0.0 (2021-08)
ATi internal spectrum analyser input ATtenuator
ATPC Automatic Transmission Power Control
BER Bit Error Rate
BS Base (Master) Station of a P-MP system
BW BandWidth
BWA Broadband Wireless Access
BWe evaluation BandWidth for spectral measurement
NOTE: I.e. spectrum analyser resolution bandwidth.
BWr reference BandWidth
CEPT Conférence Européenne des administrations des Postes et des Télécommunications
(European Conference of Postal and Telecommunications administrations)
CS Channel Separation
CW Continuous Wave
DFRS Digital Fixed Radio Systems
DUT Device Under Test
EC European Commission
ECC Electronic Communication Committee of the CEPT
EN Europäische Nor
...
SLOVENSKI STANDARD
oSIST prEN 301 390 V2.0.0:2021
01-november-2021
Fiksni radijski sistemi - Sistemi točka-točka in večtočkovni sistemi - Neželena
oddajanja in omejitve odpornosti sprejemnika pri vhodu v opremo oziroma pri
antenskem vhodu digitalnih fiksnih radijskih sistemov
Fixed Radio Systems - Point-to-point and Multipoint Systems - Unwanted emissions in
the spurious domain and receiver immunity limits at equipment/antenna port of Digital
Fixed Radio Systems
Ta slovenski standard je istoveten z: ETSI EN 301 390 V2.0.0 (2021-08)
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
33.100.10 Emisija Emission
oSIST prEN 301 390 V2.0.0:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 301 390 V2.0.0:2021
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oSIST prEN 301 390 V2.0.0:2021
Draft ETSI EN 301 390 V2.0.0 (2021-08)
EUROPEAN STANDARD
Fixed Radio Systems;
Point-to-point and Multipoint Systems;
Unwanted emissions in the spurious domain and
receiver immunity limits at
equipment/antenna port of Digital Fixed Radio Systems
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oSIST prEN 301 390 V2.0.0:2021
2 Draft ETSI EN 301 390 V2.0.0 (2021-08)
Reference
REN/ATTM-0452
Keywords
emission, FWS, immunity, multipoint, point-to-point
ETSI
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© ETSI 2021.
All rights reserved.
ETSI
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3 Draft ETSI EN 301 390 V2.0.0 (2021-08)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Transmitter unwanted emissions in the spurious domain at antenna port . 12
4.1 Background . 12
4.2 Limits . 12
4.2.0 Generality . 12
4.2.1 Point-to-point equipment . 12
4.2.2 Multipoint equipment . 13
4.2.3 Broadband Wireless Access equipment operating between 1 GHz and 6 GHz . 13
5 Receiver spurious emissions at the antenna port . 13
6 Spurious domain emissions test method. 13
7 Receiver immunity at antenna port . 13
7.0 Definitions . 13
7.1 Limits . 14
7.2 Receiver immunity test method . 15
Annex A (informative): Application of CEPT/ERC Recommendation 74-01 . 16
A.0 Introduction . 16
A.1 Frequency range of applicability . 16
A.2 Level limits . 18
A.3 Reference bandwidths . 19
A.4 Detailed application of the reference bandwidths reported in table A.3 . 24
A.4.0 Foreword . 24
A.4.1 P-P and P-MP systems with fundamental emissions from 30 MHz to 1 GHz. 24
A.4.2 P-P and P-MP systems with fundamental emissions from 1 GHz to 21,2 GHz . 24
A.4.3 P-P and P-MP systems with fundamental emissions above 21,2 GHz . 25
Annex B (informative): Measurement background . 26
B.1 Spectrum analyser capability . 26
B.2 Application examples . 27
History . 33
ETSI
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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 draft European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission
and Multiplexing (ATTM), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI
standards EN Approval Procedure.
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): 6 months after doa
Major changes with respect to previous version
This revision is consequent to 2019 revision of CEPT/ERC Recommendation 74-01 [1], which revised the resolution
bandwidth staircase for the limits of unwanted emissions in the spurious domain also for system with channel
separation higher than 28 MHz and added specific limits for "channels-aggregation" systems as defined in ETSI
EN 302 217-2 [i.7]. In addition, standing the poor penetration of multipoint systems in the so-called HDFS (High
Density Fixed Service) bands (see 5.547 in the Radio Regulations [i.12]), limits for multipoint equipment with
fundamental emission above 21,2 GHz have also been aligned to those required by CEPT/ERC Recommendation
74-01 [1].
Examples in clause B.2 have been updated as appropriate.
ETSI
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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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Introduction
The term Spurious emissions is used for simplicity elsewhere in the present document but with the more broader
meaning of "unwanted emissions in the spurious domain" introduced by Recommendation ITU-R SM.329-12 [i.13] for
clarifying the Radio Regulation definitions and the application of recommended limits for all unwanted emissions; it
also recommends that spurious emissions limits apply to all unwanted emissions falling in the spurious domain.
Therefore the present document deals with limits for unwanted emissions in the spurious domain at antenna port of
Digital Fixed Radio Systems (DFRS) as defined by Recommendation ITU-R SM.329-12 [i.13] and CEPT/ERC
Recommendation 74-01 [1] and ECC Recommendation (02)05 [i.18].
Moreover it covers characteristics of immunity from interference at receiver's antenna port.
Unwanted emissions in the spurious domain and immunity performance at antenna port are also relevant to essential
requirements under article 3.2 of Directive 2014/53/EU [i.11] on Radio Equipment (RED).
Additional considerations and background for producing the present document are:
- Recommendation ITU-R SM.329-12 [i.13] considers emissions from any system, including digital modulation
and allows options for the definition of the frequency boundary between out-of-band domain and spurious
domain. It recommends different category of level limits applicable to the Fixed Service;
- Recommendation ITU-R SM.1539-1 [i.14] describes the application of the boundary concept between
out-of-band and spurious domains;
- Recommendation ITU-R F.1191-3 [i.15] define the application of Radio Regulations [i.12] and the concepts of
out-of-band, unwanted and spurious emissions to DFRS, clarify the applicability for the boundary between
out-of-band and Spurious emissions domains but maintain the same possible limit options provided by
Recommendation ITU-R SM.329-12 [i.13];
- CEPT/ERC Recommendation 74-01 [1], endorses only the more stringent Category B limits of
Recommendation ITU-R SM.329-12 [i.13];
- for the purpose of Directive 2014/53/EU [i.11] the emissions and immunity at antenna port fall under its
article 3.2 requirements for "effective use of spectrum" and "avoidance of harmful interference";
- it is convenient to maintain a single ETSI EN covering these parameters instead of replicating them on each
single product standard, avoiding possible deviation from what required by other CEPT and ITU-R normative;
- limits for unwanted emissions in the spurious domain are supposed to be fixed in view of inter-working
compatibility among various Fixed Radio Systems in same or different band exploited in the same area;
- the measurement of the required limits should also be feasible in a suitable and cost effective conformance test
(annex B gives also information in this field);
- it is necessary that DFRS receivers provide a minimum level of immunity at antenna port towards possible
interference at any frequency band of practical interest;
- a suitable and easy to perform criterion for DFRS receivers immunity at antenna port may be considered the
application of a CW interference.
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1 Scope
The scope of the present document is to define specific limits at antenna port for unwanted emissions in the spurious
domain and receiver immunity for suitable inter-working of Digital Fixed Radio Systems (i.e. Point-to-point and
Multipoint systems) in the same or in different frequency band whenever allocated to Fixed Service in the range 9 kHz
to 300 GHz.
However systems with fundamental emission below 30 MHz are not considered relevant for Digital Fixed Radio
Systems and are outside the scope of the present document.
The present document adopts CEPT/ERC Recommendation 74-01 [1] which gives limits for Unwanted emissions in the
Spurious domain with particular regards to "inter Services" operations.
In addition, it is recognized the need for a general requirement for receiver immunity to relatively high interference
signals generated by any source and at any frequency in the same range identified as spurious domain by CEPT/ERC
Recommendation 74-01 [1].
Some ETSI deliverables for DFRS provide limits for both "external" and "internal" spurious domain emissions and the
latter are outside the scope of the present document. Moreover the limits for emissions given in the present document do
not prevent more stringent requirement given in those deliverables for intra-system purpose (i.e. local Transmitter to
Receiver interference usually referred as "internal").
In order to help the understanding of limits given in CEPT/ERC Recommendation 74-01 [1], in annex B, unwanted
emissions in the spurious domain are analysed from the point of view of a suitable test method for conformance testing.
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 a specific reference, only the cited version applies. For a non-specific reference, 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
http://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] CEPT/ERC Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
[2] Void.
[3] ETSI EN 301 126-1: "Fixed Radio Systems; Conformance testing; Part 1: Point-to-Point
equipment - Definitions, general requirements and test procedures".
[4] ETSI EN 301 126-2-1: "Fixed Radio Systems; Conformance testing; Part 2-1: Point-to-Multipoint
equipment; Definitions and general requirements".
[5] ETSI EN 301 126-2-2: "Fixed Radio Systems; Conformance testing; Part 2-2: Point-to-Multipoint
equipment; Test procedures for FDMA systems".
[6] ETSI EN 301 126-2-3: "Fixed Radio Systems; Conformance testing; Part 2-3: Point-to-Multipoint
equipment; Test procedures for TDMA systems".
[7] ETSI EN 301 126-2-4: "Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint
equipment; Test procedures for FH-CDMA systems".
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[8] ETSI EN 301 126-2-5: "Fixed Radio Systems; Conformance testing; Part 2-5: Point-to-Multipoint
equipment; Test procedures for DS-CDMA systems".
[9] ETSI EN 301 126-2-6: "Fixed Radio Systems; Conformance testing; Part 2-6: Point-to-Multipoint
equipment; Test procedures for Multi Carrier Time Division Multiple Access (MC-TDMA)
systems".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For a specific reference, only the cited version applies. For a non-specific reference, 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] Void.
[i.2] Void.
[i.3] Void.
[i.4] Void.
[i.5] Void.
[i.6] Void.
[i.7] 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.8] ETSI EN 302 217-1: "Fixed Radio Systems; Characteristics and requirements for point-to-point
equipment and antennas; Part 1: Overview, common characteristics and requirements not related to
access to radio spectrum".
[i.9] ETSI TR 101 036-1: "Fixed Radio Systems; Generic wordings for standards on DFRS (Digital
Fixed Radio Systems) characteristics; Part 1: General aspects and point-to-point equipment
parameters".
[i.10] Recommendation ITU-R F.746-10: "Radio-frequency arrangements for fixed service systems".
[i.11] 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.12] ITU-R Radio Regulations (2020).
[i.13] Recommendation ITU-R SM.329-12: "Unwanted emissions in the spurious domain".
[i.14] Recommendation ITU-R SM.1539-1: "Variation of the boundary between the out-of-band and
spurious domains required for the application of Recommendations ITU-R SM.1541 and ITU-R
SM.329".
[i.15] Recommendation ITU-R F.1191-3: "Necessary and occupied bandwidths and unwanted emissions
of digital fixed service systems".
[i.16] ECC Report 100: "Compatibility Studies in the Band 3400- 3800 MHz between Broadband
Wireless Access (BWA) Systems and other Services".
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[i.17] EC REF:Ares(2019)5616840 - Further response to the EC on ERC/REC 74-01 for ETSI X-band
radar standards.
NOTE: Available as ECC(20)093 Annex 14 (CEPT website password required).
[i.18] ECC Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
boundary between out-of-band and spurious domains: frequency limit that subdivides the two domains and the
applicability of relevant requirements
NOTE: Recommendations ITU-R SM.329-12 [i.13] and SM.1539-1 [i.14] describe the possible application to all
radio emissions. Recommendation ITU-R F.1191-3 [i.15] details it for Fixed Service systems.
Broadband Wireless Access (BWA) system: access system used for the deployment of radio access networks in both
the fixed service and the mobile service
NOTE: BWA applications were introduced by ECC Report 100 [i.16] as:
"BWA systems were considered in the report, covering various BWA usage modes, i.e. Fixed (FWA),
Nomadic (NWA) and Mobile (MWA) Wireless Access".
Therefore, the technology of BWA may indifferently refer to the fixed or the mobile service regulation.
Channel Separation (CS): distance between adjacent channels in a radio frequency channels arrangement (defined in
ECC or ITU-R or national recommendations)
NOTE 1: It represents one of the major parameters for the identification of the radio equipment use and relevant
requirements.
NOTE 2: Some channel arrangements give only a continuous raster of elementary frequency slots for composing
multiple (N × elementary slot) aggregated channels of various size. In this case the actual CS would be
equal to the N × elementary slot used by the radio system. When no channel arrangement or elementary
slot raster is defined in the band of operation of the radio system, the occupied bandwidth should be
considered in substitution of the CS.
Continuous wave (CW) signal: signal with spectral emission on a single frequency only
NOTE: Unavoidable phase-noise spectral components of the CW source are not to be taken into account.
EN: European Standard (Telecommunications series)
evaluation bandwidth: bandwidth where the spurious domain emission limits are measured (e.g. the spectrum analyser
resolution bandwidth) for further normalization/integration to the reference bandwidth
Gross Symbol Frequency G : the maximum frequency of variance of the different states of the modulator
SF)
(e.g. 256 states for 256 QAM modulation formats); it is equal to the maximum (gross) bit rate (i.e. inclusive of any
payloads, control and service data, overhead and error correction codes to be transmitted) divided by the modulation
n
index "n" (e.g. n = 8 for 2 =256 in 256 QAM)
necessary bandwidth (1.152 of Radio Regulations [i.12]):
"For a given class of emission, the width of the frequency band which is just sufficient to ensure the transmission of
information at the rate and with the quality required under specified conditions"
NOTE: Recommendation ITU-R F.1191-3 [i.15] establishes that for DFRS the necessary bandwidth is considered
coincident with the occupied bandwidth.
noise-like emissions: emissions characterized by a distributed power density within the reference and evaluation
bandwidths
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occupied bandwidth (1.153 of Radio Regulations [i.12]):
"width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted
β/2 of the total mean power of a given emission (Radio Regulations [i.12])"
are each equal to a specified percentage
NOTE: For the purpose of the present document, β/2 is assumed to be equal to 0,5 % (Recommendation ITU-R
F.1191-3 [i.15]).
out-of-band domain (of an emission) (1.146A of Radio Regulations [i.12]):
"frequency range, immediately outside the necessary bandwidth but excluding the spurious domain, in which
out-of-band emissions generally predominate.
Out-of-band emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the
spurious domain. Spurious emissions likewise may occur in the out-of-band domain as well as in the spurious domain.
However, the limit in the out-of-band-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
receiver spurious emissions: spurious sent backwards to the antenna port by a receiver
NOTE: Sometimes they are also referenced as "spurious radiations".
reference bandwidth: bandwidth where the spurious emission limits are defined
NOTE: See also Recommendation ITU-R SM.329-12 [i.13].
spurious domain (of an emission) (1.146B of Radio Regulations [i.12]):
"frequency range beyond the out-of-band domain in which spurious emissions generally predominate.
Spurious emissions may occur in the out-of-band domain as well as in the spurious domain. Likewise out-of-band
emissions, defined based on their source, occur in the out-of-band domain and, to a lesser extent, in the spurious
domain. However, the limit in the spurious-domain applies to any unwanted emissions independently from their formal
identification as out-of-band or spurious emissions"
unwanted emissions (1.146 of Radio Regulations [i.12]):
"emissions composed by out-of-band and spurious emissions"
unwanted emissions in the out-of-band domain: any unwanted emission, outside the channel bandwidth, which falls
at frequencies separated from the centre frequency of the emission by less than 250 % (see note) of the relevant
Channel Separation (CS), where the system is intended to be used
NOTE: When CS > 500 MHz the 250 % should be substituted by (150 % CS + 500 MHz), see
CEPT/ERC Recommendation 74-01 [1].
unwanted emissions in the spurious domain : any unwanted emission which falls at frequencies separated from the
centre frequency of the emission by 250 % (see note) or more of the relevant channel separation, where the sys
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