SIST EN 303 354 V1.2.1:2025
(Main)Amplifiers and active antennas for TV broadcast reception in domestic premises - Harmonised standard for access to radio spectrum
Amplifiers and active antennas for TV broadcast reception in domestic premises - Harmonised standard for access to radio spectrum
The present document specifies technical characteristics and methods of measurements for:
1) Indoor and outdoor amplifiers for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at VHF (174 MHz to 230 MHz).
2) Indoor active antennas for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at VHF (174 MHz to 230 MHz).
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.
Ojačevalniki in aktivne antene za sprejem televizijske radiodifuzije v domačih prostorih - Harmonizirani standard za dostop do radijskega spektra
Ta dokument določa tehnične lastnosti in merilne metode za: 1) notranje in zunanje ojačevalnike za sprejem televizijske radiodifuzije in zvoka v pasovih ultra visoke frekvence (UHF) (od 470 MHz do 694 MHz) in zelo visoke frekvence (VHF) (od 174 MHz do 230 MHz); 2) notranje aktivne antene za sprejem televizijske radiodifuzije in zvoka v pasovih ultra visoke frekvence (UHF) (od 470 MHz do 694 MHz) in zelo visoke frekvence (VHF) (od 174 MHz do 230 MHz). OPOMBA: Razmerje med tem dokumentom in bistvenimi zahtevami člena 3.2 Direktive 2014/53/EU [i.1] je podano v dodatku A.
General Information
Standards Content (Sample)
Draft ETSI EN 303 354 V1.1.8 (2024-06)
HARMONISED EUROPEAN STANDARD
Amplifiers and active antennas for
TV broadcast reception in domestic premises;
Harmonised standard for access to radio spectrum
2 Draft ETSI EN 303 354 V1.1.8 (2024-06)
Reference
REN/ERM-TG17-163
Keywords
amplification, antenna, broadcasting,
harmonised standard
ETSI
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Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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other professional standard and applicable regulations.
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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 2024.
All rights reserved.
ETSI
3 Draft ETSI EN 303 354 V1.1.8 (2024-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical requirements specifications . 9
4.1 Environmental profile . 9
4.2 General conditions of measurement . 9
4.2.1 General . 9
4.2.2 Equipment configuration . 9
4.2.3 Test conditions . 9
4.2.3.1 General . 9
4.2.3.2 Normal test conditions . 10
4.3 General assessment. 10
4.4 Equipment categorization . 10
4.5 Conformance requirements . 11
4.5.1 Void . 11
4.5.2 Noise figure . 11
4.5.2.1 Definition . 11
4.5.2.2 Limits . 11
4.5.2.3 Conformance . 11
4.5.3 Amplifier intermodulation . 12
4.5.3.1 Definition . 12
4.5.3.2 Limits . 12
4.5.3.3 Conformance . 12
4.5.4 Return loss . 12
4.5.4.1 Definition . 12
4.5.4.2 Limits . 13
4.5.4.3 Conformance . 13
4.5.5 Selectivity . 13
4.5.5.1 Definition . 13
4.5.5.2 Limits . 13
4.5.5.2.1 Classification 1 . 13
4.5.5.2.2 Classification 2 . 14
4.5.5.3 Conformance . 14
4.5.5.4 Void. 15
4.5.5.5 Void. 15
4.5.5.6 Void. 15
4.5.6 Active antenna gain . 15
4.5.6.1 Definition . 15
4.5.6.2 Limits . 15
4.5.6.3 Conformance . 15
4.5.7 Active antenna figure of merit . 15
4.5.7.1 Definition . 15
4.5.7.2 Limits . 15
4.5.7.3 Conformance . 16
4.5.8 Active antenna intermodulation . 16
ETSI
4 Draft ETSI EN 303 354 V1.1.8 (2024-06)
4.5.8.1 Definition . 16
4.5.8.2 Limits . 16
4.5.8.3 Conformance . 16
4.5.9 Internal immunity . 16
4.5.9.1 Definition . 16
4.5.9.2 Limits . 17
4.5.9.3 Conformance . 18
5 Testing for compliance with technical requirements . 18
5.1 Environmental conditions for testing . 18
5.2 Void . 19
5.3 Methods of measurement . 19
5.3.1 Void . 19
5.3.2 Noise figure . 19
5.3.3 Amplifier intermodulation . 20
5.3.4 Return loss . 21
5.3.5 Selectivity . 22
5.3.6 Active antenna gain . 22
5.3.7 Active antenna figure of merit . 23
5.3.8 Active antenna intermodulation . 23
5.3.9 Internal immunity . 24
5.3.9.1 Method of measurement for active antennas . 24
5.3.9.2 Method of measurement for amplifiers . 24
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 26
Annex B (informative): Active Antenna Theory . 27
Annex C (informative): Maximum measurement uncertainty . 29
Annex D (informative): Change history . 30
History . 31
ETSI
5 Draft ETSI EN 303 354 V1.1.8 (2024-06)
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
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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
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Foreword
This draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote
phase of the ETSI Standardisation Request deliverable Approval Procedure.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.4] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the
harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and
repealing Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in Table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Other Union legislation may be applicable to the product(s) falling within the scope of the present document.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa
ETSI
6 Draft ETSI EN 303 354 V1.1.8 (2024-06)
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 present document is a Harmonised Standard for amplifiers and active antennas used for broadcast TV reception in
the UHF band from 470 MHz to 694 MHz and the VHF band from 174 MHz to 230 MHz.
The primary purpose of the present document is to specify technical parameters to limit the interfering effects caused by
unwanted signals on TV reception.
ETSI
7 Draft ETSI EN 303 354 V1.1.8 (2024-06)
1 Scope
The present document specifies technical characteristics and methods of measurements for:
1) Indoor and outdoor amplifiers for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
2) Indoor active antennas for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU is given in annex A.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] Void.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] Void.
[i.3] Void.
[i.4] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.5] Void.
[i.6] ETSI TR 100 028 all parts (V1.4.1) (2001): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
8 Draft ETSI EN 303 354 V1.1.8 (2024-06)
[i.7] Void.
[i.8] Void.
3 Definitions of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active antenna: antenna equipped with an integrated low noise amplifier for indoor use (equipment type A)
amplifier: indoor or outdoor equipment intended to amplify terrestrial broadcast signals
category: method of classifying equipment according to its type {P,D,L} and selectivity class {1,2}
domestic amplifier: general purpose amplifier for use in domestic premises intended to amplify terrestrial broadcast
signals (equipment type D)
internal immunity: ability of a device, equipment or system to perform without degradation in the presence of
electromagnetic disturbances appearing at its normal input terminals or antennas
launch amplifier: high output level amplifier used to distribute terrestrial broadcast signals to multiple receivers
(equipment type L)
preamplifier: low noise amplifier with one or more outputs typically used immediately after a terrestrial receive
antenna (equipment type P)
NOTE: A masthead amplifier is a preamplifier for outdoor use with terrestrial broadcast signals.
UHF band: broadcast band from 470 MHz to 694 MHz divided into 28 channels, each 8 MHz wide, numbered from
21 to 48
VHF band: broadcast band from 174 MHz to 230 MHz divided into 8 channels, each 7 MHz wide, numbered from 5 to
3.2 Symbols
For the purposes of the present document, the following symbols apply:
nf Noise Figure, expressed in dB
rd
IM3 3 order intercept
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAUT Active Antenna Under Test
AC Alternating Current
AUT Amplifier Under Test
CW Carrier Wave
DC Direct Current
ENR Excess Noise Ratio
E-UTRA Evolved Universal Terrestrial Radio Access
F Frequency
GTEM Gigahertz Transverse ElectroMagnetic
IMD InterModulation Distortion
IMT International Mobile Telecommunication
MATV Master Antenna TeleVision
RF Radio Frequency
ETSI
9 Draft ETSI EN 303 354 V1.1.8 (2024-06)
RL Return Loss
SNR Signal to Noise Ratio
TOI Third Order Intercept
TV TeleVision
UHF Ultra High Frequency
VHF Very High Frequency
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be in accordance with its intended use. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the operational environmental profile defined by its intended use.
4.2 General conditions of measurement
4.2.1 General
This clause gives the general operational conditions. The product-specific operating conditions will be derived from the
product description and documentation and stated in the test report.
The levels of the test signals shall be expressed either in terms of the power relative to 1 mW (dBm) for amplifiers or
the field strength relative to 1 μV/m (dBμV/m) for antennas.
4.2.2 Equipment configuration
Power and signal distribution, grounding, interconnecting cabling and physical placement of equipment of a test system
shall simulate the typical application and usage in so far as is practicable, and shall be in accordance with the relevant
product specifications.
4.2.3 Test conditions
4.2.3.1 General
The equipment shall be tested under normal test conditions according to the relevant product and basic standards
including the information accompanying the equipment, and shall be within the range of humidity, temperature and
supply voltage for the intended use. The test conditions shall be recorded in the test report.
The test configuration and mode of operation shall be representative of the intended use and shall be recorded in the test
report.
Typical test equipment has a characteristic impedance of 50 Ω whilst antennas and amplifiers typically have a
characteristic impedance of 75 Ω. Impedance matching shall be used to interface to the equipment under test.
The equipment under test shall be fed by the power adaptor supplied by the manufacturer or, for products supplied
without a power adaptor, by a suitable equivalent.
For amplifiers with multiple inputs or multiple outputs, any ports that would otherwise be unconnected shall be
terminated in a well-matched load. For devices with multiple inputs and outputs, all inputs and outputs shall be tested.
ETSI
10 Draft ETSI EN 303 354 V1.1.8 (2024-06)
4.2.3.2 Normal test conditions
The normal temperature and humidity conditions for tests shall be a combination of temperature and humidity within
the following ranges:
• temperature: +15 °C to +35 °C;
• relative humidity: 20 % to 95 %, non-condensing.
4.3 General assessment
The manufacturer shall at the time of submission of the equipment for test, supply the following information to be
recorded in the test report:
• the intended functions of the equipment which shall be in accordance with the documentation accompanying
the equipment;
• the equipment category, as defined in clause 4.4;
• the ancillary equipment (power supply for example) to be supplied with the equipment for testing (where
applicable);
• an exhaustive list of ports, classified as either power or signal. Power ports shall further be classified as AC or
DC power;
• the operating frequency ranges over which the equipment is intended to operate;
• the environment(s) in which the equipment is intended to be used.
4.4 Equipment categorization
The equipment covered by the present document is classified according to Tables 1 and 2. The equipment type and
selectivity classification appropriate for the RF environment are combined to describe an equipment category.
Table 1: Equipment types
Equipment Description Notes
Type
P Preamplifiers Low noise amplifiers with one or more outputs.
D Domestic amplifiers Amplifiers with one or more outputs not intended for
low noise applications.
L Launch amplifiers High output level amplifiers used for MATV systems.
A Active antennas Amplified domestic antenna for indoor use.
Table 2: RF environment and selectivity classification
Selectivity Intended RF environment Notes
Classification
1 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA band
(E-UTRA band 28 and band 20). 28) and LTE-800 (E-UTRA band 20) signals.
Devices have selectivity to reject IMT
signals above 700 MHz.
2 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA band
and/or below 470 MHz. Devices have 28), LTE-800 (E-UTRA band 20) and IMT signals
selectivity to reject IMT signals below below 470 MHz.
470 MHz and above 700 MHz.
For example, equipment type P and selectivity classification 1 denotes a wideband preamplifier (equipment category
P1) intended for use where IMT is deployed in the range from 694 MHz to 862 MHz.
ETSI
11 Draft ETSI EN 303 354 V1.1.8 (2024-06)
4.5 Conformance requirements
4.5.1 Void
Table 3: Void
4.5.2 Noise figure
4.5.2.1 Definition
The noise figure, nf, is defined as the degradation of the Signal-to-Noise Ratio (SNR) resulting from noise generated by
the amplifier expressed in decibel notation:
� ⁄�
� �
�� =10���
��
⁄
� �
� �
where: � = power of input signal;
�
� = power of output signal;
�
� = power of noise at input (thermal noise at 290 K);
�
� = power of noise at output (thermal noise at 290 K).
�
The noise figure (nf) is defined at the standard noise temperature (290 K) over the bandwidth of interest.
4.5.2.2 Limits
The maximum noise figure shall be less than or equal to the values specified in Table 4.
Table 4: Amplifier noise figure
Test Test description Test Maximum noise figure (dB)
number Frequencies
Category Category
(MHz) {P,D}{1,2} {L}{1,2}
F
Noise figure UHF
1 F 4 7
amplifiers
F
Noise figure VHF
2 205,5 4 7
amplifiers
NOTE: The test frequencies F F F are defined in Table 5.
0, 1, 2
Table 5: Test frequencies
Test Category Category
Frequencies {P,D,L}{1} {P,D,L}{2}
(MHz)
F0 470 478
F1 586 586
F2 686 686
NOTE: For amplifiers operating over a reduced frequency band, the test frequencies shall be
as follows: F0 = minimum frequency + 8 MHz, F1 = centre frequency and
F = maximum frequency - 8 MHz of the stated band of operation.
4.5.2.3 Conformance
The conformance tests for this requirement shall be as described in clause 5.3.2.
ETSI
...
Final draft ETSI EN 303 354 V1.2.0 (2025-06)
HARMONISED EUROPEAN STANDARD
Amplifiers and active antennas for
TV broadcast reception in domestic premises;
Harmonised standard for access to radio spectrum
2 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
Reference
REN/ERM-TG17-163
Keywords
amplification, antenna, broadcasting, harmonised
standard
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 the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
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Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
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 2025.
All rights reserved.
ETSI
3 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical requirements specifications . 9
4.1 Environmental profile . 9
4.2 General conditions of measurement . 9
4.2.1 General . 9
4.2.2 Equipment configuration . 9
4.2.3 Test conditions . 9
4.2.3.1 General . 9
4.2.3.2 Normal test conditions . 10
4.3 General assessment. 10
4.4 Equipment categorization . 10
4.5 Conformance requirements . 11
4.5.1 Void . 11
4.5.2 Noise figure . 11
4.5.2.1 Definition . 11
4.5.2.2 Limits . 11
4.5.2.3 Conformance . 11
4.5.3 Amplifier intermodulation . 12
4.5.3.1 Definition . 12
4.5.3.2 Limits . 12
4.5.3.3 Conformance . 12
4.5.4 Return loss . 12
4.5.4.1 Definition . 12
4.5.4.2 Limits . 13
4.5.4.3 Conformance . 13
4.5.5 Selectivity . 13
4.5.5.1 Definition . 13
4.5.5.2 Limits . 13
4.5.5.2.1 Classification 1 . 13
4.5.5.2.2 Classification 2 . 14
4.5.5.3 Conformance . 15
4.5.5.4 Void. 15
4.5.5.5 Void. 15
4.5.5.6 Void. 15
4.5.6 Active antenna gain . 15
4.5.6.1 Definition . 15
4.5.6.2 Limits . 15
4.5.6.3 Conformance . 15
4.5.7 Active antenna figure of merit . 15
4.5.7.1 Definition . 15
4.5.7.2 Limits . 15
4.5.7.3 Conformance . 16
4.5.8 Active antenna intermodulation . 16
ETSI
4 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
4.5.8.1 Definition . 16
4.5.8.2 Limits . 16
4.5.8.3 Conformance . 16
4.5.9 Internal immunity . 16
4.5.9.1 Definition . 16
4.5.9.2 Limits . 17
4.5.9.3 Conformance . 18
5 Testing for compliance with technical requirements . 18
5.1 Environmental conditions for testing . 18
5.2 Void . 19
5.3 Methods of measurement . 19
5.3.1 Void . 19
5.3.2 Noise figure . 19
5.3.3 Amplifier intermodulation . 20
5.3.4 Return loss . 21
5.3.5 Selectivity . 22
5.3.6 Active antenna gain . 22
5.3.7 Active antenna figure of merit . 23
5.3.8 Active antenna intermodulation . 23
5.3.9 Internal immunity . 24
5.3.9.1 Method of measurement for active antennas . 24
5.3.9.2 Method of measurement for amplifiers . 24
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 26
Annex B (informative): Active Antenna Theory . 27
Annex C (informative): Maximum measurement uncertainty . 29
Annex D (informative): Change history . 30
History . 31
ETSI
5 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
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 IPR online database.
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™, LTE™ and 5G™ logo 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 final draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the
ETSI Standardisation Request deliverable Approval Procedure (SRdAP).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.4] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the
harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and
repealing Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in Table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Other Union legislation may be applicable to the product(s) falling within the scope of the present document.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa
ETSI
6 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
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 present document is a Harmonised Standard for amplifiers and active antennas used for broadcast TV reception in
the UHF band from 470 MHz to 694 MHz and the VHF band from 174 MHz to 230 MHz.
The primary purpose of the present document is to specify technical parameters to limit the interfering effects caused by
unwanted signals on TV reception.
ETSI
7 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
1 Scope
The present document specifies technical characteristics and methods of measurements for:
1) Indoor and outdoor amplifiers for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
2) Indoor active antennas for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU is given in annex A.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
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] Void.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] Void.
[i.3] Void.
[i.4] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.5] Void.
[i.6] ETSI TR 100 028 all parts (V1.4.1) (2001): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
8 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
[i.7] Void.
[i.8] Void.
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active antenna: antenna equipped with an integrated low noise amplifier for indoor use (equipment type A)
amplifier: indoor or outdoor equipment intended to amplify terrestrial broadcast signals
category: method of classifying equipment according to its type {P,D,L} and selectivity class {1,2}
domestic amplifier: general purpose amplifier for use in domestic premises intended to amplify terrestrial broadcast
signals (equipment type D)
internal immunity: ability of a device, equipment or system to perform without degradation in the presence of
electromagnetic disturbances appearing at its normal input terminals or antennas
launch amplifier: high output level amplifier used to distribute terrestrial broadcast signals to multiple receivers
(equipment type L)
preamplifier: low noise amplifier with one or more outputs typically used immediately after a terrestrial receive
antenna (equipment type P)
NOTE: A masthead amplifier is a preamplifier for outdoor use with terrestrial broadcast signals.
UHF band: broadcast band from 470 MHz to 694 MHz divided into 28 channels, each 8 MHz wide, numbered from
21 to 48
VHF band: broadcast band from 174 MHz to 230 MHz divided into 8 channels, each 7 MHz wide, numbered from 5 to
3.2 Symbols
For the purposes of the present document, the following symbols apply:
nf Noise Figure, expressed in dB
rd
IM3 3 order intercept
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAUT Active Antenna Under Test
AC Alternating Current
AUT Amplifier Under Test
CW Carrier Wave
DC Direct Current
ENR Excess Noise Ratio
E-UTRA Evolved Universal Terrestrial Radio Access
F Frequency
GTEM Gigahertz Transverse ElectroMagnetic
IMD InterModulation Distortion
IMT International Mobile Telecommunication
MATV Master Antenna TeleVision
RF Radio Frequency
ETSI
9 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
RL Return Loss
SNR Signal to Noise Ratio
TOI Third Order Intercept
TV TeleVision
UHF Ultra High Frequency
VHF Very High Frequency
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be in accordance with its intended use. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the operational environmental profile defined by its intended use.
4.2 General conditions of measurement
4.2.1 General
This clause gives the general operational conditions. The product-specific operating conditions will be derived from the
product description and documentation and stated in the test report.
The levels of the test signals shall be expressed either in terms of the power relative to 1 mW (dBm) for amplifiers or
the field strength relative to 1 μV/m (dBμV/m) for antennas.
4.2.2 Equipment configuration
Power and signal distribution, grounding, interconnecting cabling and physical placement of equipment of a test system
shall simulate the typical application and usage in so far as is practicable, and shall be in accordance with the relevant
product specifications.
4.2.3 Test conditions
4.2.3.1 General
The equipment shall be tested under normal test conditions according to the relevant product and basic standards
including the information accompanying the equipment, and shall be within the range of humidity, temperature and
supply voltage for the intended use. The test conditions shall be recorded in the test report.
The test configuration and mode of operation shall be representative of the intended use and shall be recorded in the test
report.
Typical test equipment has a characteristic impedance of 50 Ω whilst antennas and amplifiers typically have a
characteristic impedance of 75 Ω. Impedance matching shall be used to interface to the equipment under test.
The equipment under test shall be fed by the power adaptor supplied by the manufacturer or, for products supplied
without a power adaptor, by a suitable equivalent.
For amplifiers with multiple inputs or multiple outputs, any ports that would otherwise be unconnected shall be
terminated in a well-matched load. For devices with multiple inputs and outputs, all inputs and outputs shall be tested.
ETSI
10 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
4.2.3.2 Normal test conditions
The normal temperature and humidity conditions for tests shall be a combination of temperature and humidity within
the following ranges:
• temperature: +15 °C to +35 °C;
• relative humidity: 20 % to 95 %, non-condensing.
4.3 General assessment
The manufacturer shall at the time of submission of the equipment for test, supply the following information to be
recorded in the test report:
• the intended functions of the equipment which shall be in accordance with the documentation accompanying
the equipment;
• the equipment category, as defined in clause 4.4;
• the ancillary equipment (power supply for example) to be supplied with the equipment for testing (where
applicable);
• an exhaustive list of ports, classified as either power or signal. Power ports shall further be classified as AC or
DC power;
• the operating frequency ranges over which the equipment is intended to operate;
• the environment(s) in which the equipment is intended to be used.
4.4 Equipment categorization
The equipment covered by the present document is classified according to Tables 1 and 2. The equipment type and
selectivity classification appropriate for the RF environment are combined to describe an equipment category.
Table 1: Equipment types
Equipment Description Notes
Type
P Preamplifiers Low noise amplifiers with one or more outputs.
D Domestic amplifiers Amplifiers with one or more outputs not intended for
low noise applications.
L Launch amplifiers High output level amplifiers used for MATV systems.
A Active antennas Amplified domestic antenna for indoor use.
Table 2: RF environment and selectivity classification
Selectivity Intended RF environment Notes
Classification
1 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA
(E-UTRA band 28 and band 20). band 28) and LTE-800 (E-UTRA band 20) signals.
Devices have selectivity to reject IMT
signals above 700 MHz.
2 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA
and/or below 470 MHz. Devices have band 28), LTE-800 (E-UTRA band 20) and IMT
selectivity to reject IMT signals below signals below 470 MHz.
470 MHz and above 700 MHz.
For example, equipment type P and selectivity classification 1 denotes a wideband preamplifier (equipment category
P1) intended for use where IMT is deployed in the range from 694 MHz to 862 MHz.
ETSI
11 Final draft ETSI EN 303 354 V1.2.0 (2025-06)
4.5 Conformance requirements
4.5.1 Void
Table 3: Void
4.5.2 Noise figure
4.5.2.1 Definition
The noise figure, nf, is defined as the degradation of the Signal-to-Noise Ratio (SNR) resulting from noise generated by
the amplifier expressed in decibel notation:
� ⁄�
� �
�� =10���
��
⁄
� �
� �
where: � = power of input signal;
�
� = power of output signal;
�
� = power of noise at input (thermal noise at 290 K);
�
� = power of noise at output (thermal noise at 290 K).
�
The noise figure (nf) is defined at the standard noise temperature (290 K) over the bandwidth of interest.
4.5.2.2 Limits
The maximum noise figure shall be less than or equal to the values specified in Table 4.
Table 4: Amplifier noise figure
Test Test description Test Maximum noise figure (dB)
number Frequencies
Category Category
(MHz) {P,D}{1,2} {L}{1,2}
F
Noise figure UHF
1 F 4 7
amplifiers
F
Noise figure VHF
2 205,5 4 7
amplifiers
NOTE: The test frequencies F F F are defined in Table 5.
0, 1, 2
Table 5: Test frequencies
Test Category Category
Frequencies {P,D,L}{1} {P,D,L}{2}
(MHz)
F0 470 478
F1 586 586
F2 686 686
NOTE: For amplifiers operating over a reduced frequency band, the test frequencies shall be
as follows: F0 = minimum frequency + 8 MHz, F1 = centre frequency and
F = maximum f
...
ETSI EN 303 354 V1.2.1 (2025-09)
HARMONISED EUROPEAN STANDARD
Amplifiers and active antennas for
TV broadcast reception in domestic premises;
Harmonised standard for access to radio spectrum
2 ETSI EN 303 354 V1.2.1 (2025-09)
Reference
REN/ERM-TG17-163
Keywords
amplification, antenna, broadcasting,
harmonised standard
ETSI
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The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2025.
All rights reserved.
ETSI
3 ETSI EN 303 354 V1.2.1 (2025-09)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical requirements specifications . 9
4.1 Environmental profile . 9
4.2 General conditions of measurement . 9
4.2.1 General . 9
4.2.2 Equipment configuration . 9
4.2.3 Test conditions . 9
4.2.3.1 General . 9
4.2.3.2 Normal test conditions . 10
4.3 General assessment. 10
4.4 Equipment categorization . 10
4.5 Conformance requirements . 11
4.5.1 Void . 11
4.5.2 Noise figure . 11
4.5.2.1 Definition . 11
4.5.2.2 Limits . 11
4.5.2.3 Conformance . 11
4.5.3 Amplifier intermodulation . 12
4.5.3.1 Definition . 12
4.5.3.2 Limits . 12
4.5.3.3 Conformance . 12
4.5.4 Return loss . 12
4.5.4.1 Definition . 12
4.5.4.2 Limits . 13
4.5.4.3 Conformance . 13
4.5.5 Selectivity . 13
4.5.5.1 Definition . 13
4.5.5.2 Limits . 13
4.5.5.2.1 Classification 1 . 13
4.5.5.2.2 Classification 2 . 14
4.5.5.3 Conformance . 14
4.5.5.4 Void. 15
4.5.5.5 Void. 15
4.5.5.6 Void. 15
4.5.6 Active antenna gain . 15
4.5.6.1 Definition . 15
4.5.6.2 Limits . 15
4.5.6.3 Conformance . 15
4.5.7 Active antenna figure of merit . 15
4.5.7.1 Definition . 15
4.5.7.2 Limits . 15
4.5.7.3 Conformance . 16
4.5.8 Active antenna intermodulation . 16
ETSI
4 ETSI EN 303 354 V1.2.1 (2025-09)
4.5.8.1 Definition . 16
4.5.8.2 Limits . 16
4.5.8.3 Conformance . 16
4.5.9 Internal immunity . 16
4.5.9.1 Definition . 16
4.5.9.2 Limits . 17
4.5.9.3 Conformance . 18
5 Testing for compliance with technical requirements . 18
5.1 Environmental conditions for testing . 18
5.2 Void . 19
5.3 Methods of measurement . 19
5.3.1 Void . 19
5.3.2 Noise figure . 19
5.3.3 Amplifier intermodulation . 20
5.3.4 Return loss . 21
5.3.5 Selectivity . 22
5.3.6 Active antenna gain . 22
5.3.7 Active antenna figure of merit . 23
5.3.8 Active antenna intermodulation . 23
5.3.9 Internal immunity . 24
5.3.9.1 Method of measurement for active antennas . 24
5.3.9.2 Method of measurement for amplifiers . 24
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 26
Annex B (informative): Active Antenna Theory . 27
Annex C (informative): Maximum measurement uncertainty . 29
Annex D (informative): Change history . 30
History . 31
ETSI
5 ETSI EN 303 354 V1.2.1 (2025-09)
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 IPR online database.
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™, LTE™ and 5G™ logo are trademarks of ETSI registered for the benefit of its Members and of the
3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of ®
the oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.4] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the
harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and
repealing Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in Table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Other Union legislation may be applicable to the product(s) falling within the scope of the present document.
National transposition dates
Date of adoption of this EN: 29 August 2025
Date of latest announcement of this EN (doa): 30 November 2025
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 May 2026
Date of withdrawal of any conflicting National Standard (dow): 31 May 2027
ETSI
6 ETSI EN 303 354 V1.2.1 (2025-09)
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 present document is a Harmonised Standard for amplifiers and active antennas used for broadcast TV reception in
the UHF band from 470 MHz to 694 MHz and the VHF band from 174 MHz to 230 MHz.
The primary purpose of the present document is to specify technical parameters to limit the interfering effects caused by
unwanted signals on TV reception.
ETSI
7 ETSI EN 303 354 V1.2.1 (2025-09)
1 Scope
The present document specifies technical characteristics and methods of measurements for:
1) Indoor and outdoor amplifiers for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
2) Indoor active antennas for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.1] is given in annex A.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
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] Void.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] Void.
[i.3] Void.
[i.4] Commission Implementing Decision C(2015)5376 final of 4.8.2015 on a standardisation request to
the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of
Directive 2014/53/EU of the European Parliament and of the Council.
[i.5] Void.
[i.6] ETSI TR 100 028 all parts (V1.4.1) (2001): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
8 ETSI EN 303 354 V1.2.1 (2025-09)
[i.7] Void.
[i.8] Void.
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active antenna: antenna equipped with an integrated low noise amplifier for indoor use (equipment type A)
amplifier: indoor or outdoor equipment intended to amplify terrestrial broadcast signals
category: method of classifying equipment according to its type {P,D,L} and selectivity class {1,2}
domestic amplifier: general purpose amplifier for use in domestic premises intended to amplify terrestrial broadcast
signals (equipment type D)
internal immunity: ability of a device, equipment or system to perform without degradation in the presence of
electromagnetic disturbances appearing at its normal input terminals or antennas
launch amplifier: high output level amplifier used to distribute terrestrial broadcast signals to multiple receivers
(equipment type L)
preamplifier: low noise amplifier with one or more outputs typically used immediately after a terrestrial receive
antenna (equipment type P)
NOTE: A masthead amplifier is a preamplifier for outdoor use with terrestrial broadcast signals.
UHF band: broadcast band from 470 MHz to 694 MHz divided into 28 channels, each 8 MHz wide, numbered from
21 to 48
VHF band: broadcast band from 174 MHz to 230 MHz divided into 8 channels, each 7 MHz wide, numbered from 5 to
3.2 Symbols
For the purposes of the present document, the following symbols apply:
nf Noise Figure, expressed in dB
rd
IM3 3 order intercept
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAUT Active Antenna Under Test
AC Alternating Current
AUT Amplifier Under Test
CW Carrier Wave
DC Direct Current
ENR Excess Noise Ratio
E-UTRA Evolved Universal Terrestrial Radio Access
F Frequency
FoM Figure of Merit
GTEM Gigahertz Transverse ElectroMagnetic
IMD InterModulation Distortion
IMT International Mobile Telecommunication
LTE Long Term Evolution
ETSI
9 ETSI EN 303 354 V1.2.1 (2025-09)
MATV Master Antenna TeleVision
RF Radio Frequency
RL Return Loss
SNR Signal to Noise Ratio
TOI Third Order Intercept
TV TeleVision
UHF Ultra High Frequency
VHF Very High Frequency
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be in accordance with its intended use. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the operational environmental profile defined by its intended use.
4.2 General conditions of measurement
4.2.1 General
This clause gives the general operational conditions. The product-specific operating conditions will be derived from the
product description and documentation and stated in the test report.
The levels of the test signals shall be expressed either in terms of the power relative to 1 mW (dBm) for amplifiers or
the field strength relative to 1 μV/m (dBμV/m) for antennas.
4.2.2 Equipment configuration
Power and signal distribution, grounding, interconnecting cabling and physical placement of equipment of a test system
shall simulate the typical application and usage in so far as is practicable, and shall be in accordance with the relevant
product specifications.
4.2.3 Test conditions
4.2.3.1 General
The equipment shall be tested under normal test conditions according to the relevant product and basic standards
including the information accompanying the equipment, and shall be within the range of humidity, temperature and
supply voltage for the intended use. The test conditions shall be recorded in the test report.
The test configuration and mode of operation shall be representative of the intended use and shall be recorded in the test
report.
Typical test equipment has a characteristic impedance of 50 Ω whilst antennas and amplifiers typically have a
characteristic impedance of 75 Ω. Impedance matching shall be used to interface to the equipment under test.
The equipment under test shall be fed by the power adaptor supplied by the manufacturer or, for products supplied
without a power adaptor, by a suitable equivalent.
For amplifiers with multiple inputs or multiple outputs, any ports that would otherwise be unconnected shall be
terminated in a well-matched load. For devices with multiple inputs and outputs, all inputs and outputs shall be tested.
ETSI
10 ETSI EN 303 354 V1.2.1 (2025-09)
4.2.3.2 Normal test conditions
The normal temperature and humidity conditions for tests shall be a combination of temperature and humidity within
the following ranges:
• temperature: +15 °C to +35 °C;
• relative humidity: 20 % to 95 %, non-condensing.
4.3 General assessment
The manufacturer shall at the time of submission of the equipment for test, supply the following information to be
recorded in the test report:
• the intended functions of the equipment which shall be in accordance with the documentation accompanying
the equipment;
• the equipment category, as defined in clause 4.4;
• the ancillary equipment (power supply for example) to be supplied with the equipment for testing (where
applicable);
• an exhaustive list of ports, classified as either power or signal. Power ports shall further be classified as AC or
DC power;
• the operating frequency ranges over which the equipment is intended to operate;
• the environment(s) in which the equipment is intended to be used.
4.4 Equipment categorization
The equipment covered by the present document is classified according to Tables 1 and 2. The equipment type and
selectivity classification appropriate for the RF environment are combined to describe an equipment category.
Table 1: Equipment types
Equipment Description Notes
Type
P Preamplifiers Low noise amplifiers with one or more outputs.
D Domestic amplifiers Amplifiers with one or more outputs not intended for
low noise applications.
L Launch amplifiers High output level amplifiers used for MATV systems.
A Active antennas Amplified domestic antenna for indoor use.
Table 2: RF environment and selectivity classification
Selectivity Intended RF environment Notes
Classification
1 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA
(E-UTRA band 28 and band 20). band 28) and LTE-800 (E-UTRA band 20) signals.
Devices have selectivity to reject IMT
signals above 700 MHz.
2 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA
and/or below 470 MHz. Devices have band 28), LTE-800 (E-UTRA band 20) and IMT
selectivity to reject IMT signals below signals below 470 MHz.
470 MHz and above 700 MHz.
For example, equipment type P and selectivity classification 1 denotes a wideband preamplifier (equipment category
P1) intended for use where IMT is deployed in the range from 694 MHz to 862 MHz.
ETSI
11 ETSI EN 303 354 V1.2.1 (2025-09)
4.5 Conformance requirements
4.5.1 Void
Table 3: Void
4.5.2 Noise figure
4.5.2.1 Definition
The noise figure, nf, is defined as the degradation of the Signal-to-Noise Ratio (SNR) resulting from noise generated by
the amplifier expressed in decibel notation:
� ⁄�
� �
�� =10���
��
⁄
� �
� �
where: � = power of input signal;
�
� = power of output signal;
�
� = power of noise at input (thermal noise at 290 K);
�
� = power of noise at output (thermal noise at 290 K).
�
The noise figure (nf) is defined at the standard noise temperature (290 K) over the bandwidth of interest.
4.5.2.2 Limits
The maximum noise figure shall be less than or equal to the values specified in Table 4.
Table 4: Amplifier noise figure
Test Test description Test Maximum noise figure (dB)
number Frequencies
Category Category
(MHz) {P,D}{1,2} {L}{1,2}
F
Noise figure UHF
1 F 4 7
amplifiers
F
Noise figure VHF
2 205,5 4 7
amplifiers
NOTE: The test frequencies F F F are defined in Table 5.
0, 1, 2
Table 5: Test frequencies
Test Category Category
Frequencies {P,D,L}{1} {P,D,L}{2}
(MHz)
F0 470 478
F1 586 586
F2 686 686
NOTE: For amplifiers operating over a reduced frequency band, the test frequencies shall be
as follows: F0 = minimum frequency + 8 MHz, F1 = centre frequency and
F = maximum frequency - 8 MHz of the stated band of operation.
4.5.2.3 Conformance
The conformance tests for this requirement shall be as described in clause 5.3.2.
ETSI
12 ETSI EN 303 354 V1.2.1 (2025-09)
4.5.3 Amplifier intermodulation
4.5.3.1 Definition
Intermodulation distortion is a non-linear dis
...
SLOVENSKI STANDARD
01-november-2025
Ojačevalniki in aktivne antene za sprejem televizijske radiodifuzije v domačih
prostorih - Harmonizirani standard za dostop do radijskega spektra
Amplifiers and active antennas for TV broadcast reception in domestic premises -
Harmonised standard for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 303 354 V1.2.1 (2025-09)
ICS:
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
ETSI EN 303 354 V1.2.1 (2025-09)
HARMONISED EUROPEAN STANDARD
Amplifiers and active antennas for
TV broadcast reception in domestic premises;
Harmonised standard for access to radio spectrum
2 ETSI EN 303 354 V1.2.1 (2025-09)
Reference
REN/ERM-TG17-163
Keywords
amplification, antenna, broadcasting,
harmonised standard
ETSI
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All rights reserved.
ETSI
3 ETSI EN 303 354 V1.2.1 (2025-09)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical requirements specifications . 9
4.1 Environmental profile . 9
4.2 General conditions of measurement . 9
4.2.1 General . 9
4.2.2 Equipment configuration . 9
4.2.3 Test conditions . 9
4.2.3.1 General . 9
4.2.3.2 Normal test conditions . 10
4.3 General assessment. 10
4.4 Equipment categorization . 10
4.5 Conformance requirements . 11
4.5.1 Void . 11
4.5.2 Noise figure . 11
4.5.2.1 Definition . 11
4.5.2.2 Limits . 11
4.5.2.3 Conformance . 11
4.5.3 Amplifier intermodulation . 12
4.5.3.1 Definition . 12
4.5.3.2 Limits . 12
4.5.3.3 Conformance . 12
4.5.4 Return loss . 12
4.5.4.1 Definition . 12
4.5.4.2 Limits . 13
4.5.4.3 Conformance . 13
4.5.5 Selectivity . 13
4.5.5.1 Definition . 13
4.5.5.2 Limits . 13
4.5.5.2.1 Classification 1 . 13
4.5.5.2.2 Classification 2 . 14
4.5.5.3 Conformance . 14
4.5.5.4 Void. 15
4.5.5.5 Void. 15
4.5.5.6 Void. 15
4.5.6 Active antenna gain . 15
4.5.6.1 Definition . 15
4.5.6.2 Limits . 15
4.5.6.3 Conformance . 15
4.5.7 Active antenna figure of merit . 15
4.5.7.1 Definition . 15
4.5.7.2 Limits . 15
4.5.7.3 Conformance . 16
4.5.8 Active antenna intermodulation . 16
ETSI
4 ETSI EN 303 354 V1.2.1 (2025-09)
4.5.8.1 Definition . 16
4.5.8.2 Limits . 16
4.5.8.3 Conformance . 16
4.5.9 Internal immunity . 16
4.5.9.1 Definition . 16
4.5.9.2 Limits . 17
4.5.9.3 Conformance . 18
5 Testing for compliance with technical requirements . 18
5.1 Environmental conditions for testing . 18
5.2 Void . 19
5.3 Methods of measurement . 19
5.3.1 Void . 19
5.3.2 Noise figure . 19
5.3.3 Amplifier intermodulation . 20
5.3.4 Return loss . 21
5.3.5 Selectivity . 22
5.3.6 Active antenna gain . 22
5.3.7 Active antenna figure of merit . 23
5.3.8 Active antenna intermodulation . 23
5.3.9 Internal immunity . 24
5.3.9.1 Method of measurement for active antennas . 24
5.3.9.2 Method of measurement for amplifiers . 24
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 26
Annex B (informative): Active Antenna Theory . 27
Annex C (informative): Maximum measurement uncertainty . 29
Annex D (informative): Change history . 30
History . 31
ETSI
5 ETSI EN 303 354 V1.2.1 (2025-09)
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 IPR online database.
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™, LTE™ and 5G™ logo are trademarks of ETSI registered for the benefit of its Members and of the
3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of ®
the oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.4] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the
harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and
repealing Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in Table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Other Union legislation may be applicable to the product(s) falling within the scope of the present document.
National transposition dates
Date of adoption of this EN: 29 August 2025
Date of latest announcement of this EN (doa): 30 November 2025
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 May 2026
Date of withdrawal of any conflicting National Standard (dow): 31 May 2027
ETSI
6 ETSI EN 303 354 V1.2.1 (2025-09)
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 present document is a Harmonised Standard for amplifiers and active antennas used for broadcast TV reception in
the UHF band from 470 MHz to 694 MHz and the VHF band from 174 MHz to 230 MHz.
The primary purpose of the present document is to specify technical parameters to limit the interfering effects caused by
unwanted signals on TV reception.
ETSI
7 ETSI EN 303 354 V1.2.1 (2025-09)
1 Scope
The present document specifies technical characteristics and methods of measurements for:
1) Indoor and outdoor amplifiers for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
2) Indoor active antennas for broadcast TV and sound reception at UHF (470 MHz to 694 MHz) and at
VHF (174 MHz to 230 MHz).
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.1] is given in annex A.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
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] Void.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents may be useful in implementing an ETSI deliverable or add to the reader's
understanding, but are not required for conformance to the present document.
[i.1] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] Void.
[i.3] Void.
[i.4] Commission Implementing Decision C(2015)5376 final of 4.8.2015 on a standardisation request to
the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of
Directive 2014/53/EU of the European Parliament and of the Council.
[i.5] Void.
[i.6] ETSI TR 100 028 all parts (V1.4.1) (2001): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
8 ETSI EN 303 354 V1.2.1 (2025-09)
[i.7] Void.
[i.8] Void.
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active antenna: antenna equipped with an integrated low noise amplifier for indoor use (equipment type A)
amplifier: indoor or outdoor equipment intended to amplify terrestrial broadcast signals
category: method of classifying equipment according to its type {P,D,L} and selectivity class {1,2}
domestic amplifier: general purpose amplifier for use in domestic premises intended to amplify terrestrial broadcast
signals (equipment type D)
internal immunity: ability of a device, equipment or system to perform without degradation in the presence of
electromagnetic disturbances appearing at its normal input terminals or antennas
launch amplifier: high output level amplifier used to distribute terrestrial broadcast signals to multiple receivers
(equipment type L)
preamplifier: low noise amplifier with one or more outputs typically used immediately after a terrestrial receive
antenna (equipment type P)
NOTE: A masthead amplifier is a preamplifier for outdoor use with terrestrial broadcast signals.
UHF band: broadcast band from 470 MHz to 694 MHz divided into 28 channels, each 8 MHz wide, numbered from
21 to 48
VHF band: broadcast band from 174 MHz to 230 MHz divided into 8 channels, each 7 MHz wide, numbered from 5 to
3.2 Symbols
For the purposes of the present document, the following symbols apply:
nf Noise Figure, expressed in dB
rd
IM3 3 order intercept
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAUT Active Antenna Under Test
AC Alternating Current
AUT Amplifier Under Test
CW Carrier Wave
DC Direct Current
ENR Excess Noise Ratio
E-UTRA Evolved Universal Terrestrial Radio Access
F Frequency
FoM Figure of Merit
GTEM Gigahertz Transverse ElectroMagnetic
IMD InterModulation Distortion
IMT International Mobile Telecommunication
LTE Long Term Evolution
ETSI
9 ETSI EN 303 354 V1.2.1 (2025-09)
MATV Master Antenna TeleVision
RF Radio Frequency
RL Return Loss
SNR Signal to Noise Ratio
TOI Third Order Intercept
TV TeleVision
UHF Ultra High Frequency
VHF Very High Frequency
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be in accordance with its intended use. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the operational environmental profile defined by its intended use.
4.2 General conditions of measurement
4.2.1 General
This clause gives the general operational conditions. The product-specific operating conditions will be derived from the
product description and documentation and stated in the test report.
The levels of the test signals shall be expressed either in terms of the power relative to 1 mW (dBm) for amplifiers or
the field strength relative to 1 μV/m (dBμV/m) for antennas.
4.2.2 Equipment configuration
Power and signal distribution, grounding, interconnecting cabling and physical placement of equipment of a test system
shall simulate the typical application and usage in so far as is practicable, and shall be in accordance with the relevant
product specifications.
4.2.3 Test conditions
4.2.3.1 General
The equipment shall be tested under normal test conditions according to the relevant product and basic standards
including the information accompanying the equipment, and shall be within the range of humidity, temperature and
supply voltage for the intended use. The test conditions shall be recorded in the test report.
The test configuration and mode of operation shall be representative of the intended use and shall be recorded in the test
report.
Typical test equipment has a characteristic impedance of 50 Ω whilst antennas and amplifiers typically have a
characteristic impedance of 75 Ω. Impedance matching shall be used to interface to the equipment under test.
The equipment under test shall be fed by the power adaptor supplied by the manufacturer or, for products supplied
without a power adaptor, by a suitable equivalent.
For amplifiers with multiple inputs or multiple outputs, any ports that would otherwise be unconnected shall be
terminated in a well-matched load. For devices with multiple inputs and outputs, all inputs and outputs shall be tested.
ETSI
10 ETSI EN 303 354 V1.2.1 (2025-09)
4.2.3.2 Normal test conditions
The normal temperature and humidity conditions for tests shall be a combination of temperature and humidity within
the following ranges:
• temperature: +15 °C to +35 °C;
• relative humidity: 20 % to 95 %, non-condensing.
4.3 General assessment
The manufacturer shall at the time of submission of the equipment for test, supply the following information to be
recorded in the test report:
• the intended functions of the equipment which shall be in accordance with the documentation accompanying
the equipment;
• the equipment category, as defined in clause 4.4;
• the ancillary equipment (power supply for example) to be supplied with the equipment for testing (where
applicable);
• an exhaustive list of ports, classified as either power or signal. Power ports shall further be classified as AC or
DC power;
• the operating frequency ranges over which the equipment is intended to operate;
• the environment(s) in which the equipment is intended to be used.
4.4 Equipment categorization
The equipment covered by the present document is classified according to Tables 1 and 2. The equipment type and
selectivity classification appropriate for the RF environment are combined to describe an equipment category.
Table 1: Equipment types
Equipment Description Notes
Type
P Preamplifiers Low noise amplifiers with one or more outputs.
D Domestic amplifiers Amplifiers with one or more outputs not intended for
low noise applications.
L Launch amplifiers High output level amplifiers used for MATV systems.
A Active antennas Amplified domestic antenna for indoor use.
Table 2: RF environment and selectivity classification
Selectivity Intended RF environment Notes
Classification
1 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA
(E-UTRA band 28 and band 20). band 28) and LTE-800 (E-UTRA band 20) signals.
Devices have selectivity to reject IMT
signals above 700 MHz.
2 IMT is deployed above 700 MHz Provides selectivity to reject LTE-700 (E-UTRA
and/or below 470 MHz. Devices have band 28), LTE-800 (E-UTRA band 20) and IMT
selectivity to reject IMT signals below signals below 470 MHz.
470 MHz and above 700 MHz.
For example, equipment type P and selectivity classification 1 denotes a wideband preamplifier (equipment category
P1) intended for use where IMT is deployed in the range from 694 MHz to 862 MHz.
ETSI
11 ETSI EN 303 354 V1.2.1 (2025-09)
4.5 Conformance requirements
4.5.1 Void
Table 3: Void
4.5.2 Noise figure
4.5.2.1 Definition
The noise figure, nf, is defined as the degradation of the Signal-to-Noise Ratio (SNR) resulting from noise generated by
the amplifier expressed in decibel notation:
� ⁄�
� �
�� =10���
��
⁄
� �
� �
where: � = power of input signal;
�
� = power of output signal;
�
� = power of noise at input (thermal noise at 290 K);
�
� = power of noise at output (thermal noise at 290 K).
�
The noise figure (nf) is defined at the standard noise temperature (290 K) over the bandwidth of interest.
4.5.2.2 Limits
The maximum noise figure shall be less than or equal to the values specified in Table 4.
Table 4: Amplifier noise figure
Test Test description Test Maximum noise figure (dB)
number Frequencies
Category Category
(MHz) {P,D}{1,2} {L}{1,2}
F
Noise figure UHF
1 F 4 7
amplifiers
F
Noise figure VHF
2 205,5 4 7
amplifiers
NOTE: The test frequencies F F F are defined in Table 5.
0, 1, 2
Table 5: Test frequencies
Test Category Category
Frequencies {P,D,L}{1} {P,D,L}{2}
(MHz)
F0 470 478
F1 586 586
F2 686 686
NOTE: For amplifiers operating over a reduced frequency band, the test frequencies shall be
as follows: F0 = minimum frequency + 8 MHz, F1 = centre frequency and
F = maximum frequency - 8 MHz of the stated band of operation.
4.5.2.3 Conformance
The conformance tests for thi
...
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