SIST EN 302 245 V2.1.1:2018

ETSI EN 302 245 V2.1.1 (2018-06)






HARMONISED EUROPEAN STANDARD
Transmitting equipment for the
Digital Radio Mondiale (DRM) sound broadcasting service;
Harmonised Standard for access to radio spectrum

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2 ETSI EN 302 245 V2.1.1 (2018-06)



Reference
REN/ERM-TG17-17
Keywords
audio, broadcasting, digital, DRM, harmonised
standard, radio, terrestrial, transmitter
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2018.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 ETSI EN 302 245 V2.1.1 (2018-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical requirements specifications . 10
4.1 Environmental profile . 10
4.2 Conformance requirements . 10
4.2.1 Rated output power . 10
4.2.1.1 Definition . 10
4.2.1.2 Limit . 10
4.2.1.3 Conformance . 10
4.2.2 Frequency stability . 10
4.2.2.1 Definition . 10
4.2.2.2 Limit . 10
4.2.2.2.1 DRM transmitters operating below 30 MHz . 10
4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 10
4.2.2.3 Conformance . 10
4.2.3 Spurious emissions . 11
4.2.3.1 Definition . 11
4.2.3.2 Limit . 11
4.2.3.2.1 DRM transmitters operating below 30 MHz . 11
4.2.3.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 12
4.2.3.3 Conformance . 12
4.2.4 Transmitter muting during frequency shift . 13
4.2.4.1 Definition . 13
4.2.4.2 Limits . 13
4.2.4.3 Conformance . 13
4.2.5 Out-of-band emissions . 13
4.2.5.1 Definition . 13
4.2.5.2 Limit . 13
4.2.5.2.1 DRM transmitters operating below 30 MHz . 13
4.2.5.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 15
4.2.5.3 Conformance . 16
4.2.6 Modulation Error Ratio (MER) . 16
4.2.6.1 Definition . 16
4.2.6.2 Limit . 16
4.2.6.2.1 DRM transmitters operating below 30 MHz . 16
4.2.6.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 16
4.2.6.3 Conformance . 16
5 Testing for compliance with technical requirements . 17
5.1 Environmental conditions for testing . 17
5.2 Interpretation of the measurement results . 17
5.3 Methods of measurement . 17
5.3.1 Rated output power . 17
5.3.1.1 Method of measurement . 17
ETSI

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4 ETSI EN 302 245 V2.1.1 (2018-06)
5.3.1.1.1 Initial conditions . 17
5.3.1.1.2 Procedure . 18
5.3.1.1.3 Test requirements . 18
5.3.2 Frequency stability . 18
5.3.2.1 Method of measurement . 18
5.3.2.1.1 Initial conditions . 18
5.3.2.1.2 Procedure . 18
5.3.2.1.3 Test requirements . 19
5.3.3 Spurious emissions . 19
5.3.3.1 Method of measurement . 19
5.3.3.1.1 Initial conditions . 19
5.3.3.1.2 Procedure . 19
5.3.3.1.3 Test requirements . 19
5.3.4 Transmitter muting during frequency shift . 20
5.3.4.1 Method of measurement . 20
5.3.4.1.1 Initial conditions . 20
5.3.4.1.2 Procedure . 20
5.3.4.1.3 Test requirements . 20
5.3.5 Out-of-band emissions . 20
5.3.5.1 Method of measurement . 20
5.3.5.1.1 Initial conditions . 20
5.3.5.1.2 Procedure . 20
5.3.5.1.3 Test requirements . 21
5.3.6 Modulation Error Ratio (MER) . 21
5.3.6.1 Method of measurement . 21
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 22
Annex B (normative): Typical measuring arrangements . 23
B.1 Testing arrangements for antenna port (and MER) measurements . 23
B.1.0 General . 23
B.1.1 Testing arrangement . 23
B.1.2 Test frequency range (antenna port measurements) . 24
B.1.3 Test modulating signal . 24
B.2 Test load characteristics . 24
Annex C (informative): Change history . 25
History . 26


ETSI

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5 ETSI EN 302 245 V2.1.1 (2018-06)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.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.

National transposition dates
Date of adoption of this EN: 17 May 2018
Date of latest announcement of this EN (doa): 31 August 2018
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2019
Date of withdrawal of any conflicting National Standard (dow): 29 February 2020

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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6 ETSI EN 302 245 V2.1.1 (2018-06)
Introduction
The present document describes the requirements for the design and operation of a DRM sound broadcasting service
transmitter.
ETSI

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7 ETSI EN 302 245 V2.1.1 (2018-06)
1 Scope
The present document specifies technical characteristics and methods of measurements for transmitting equipment for
the Digital Radio Mondiale (DRM) sound broadcasting service operating in the LF band, MF band, HF band and VHF
band.
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 specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI ES 201 980 (V4.1.2) (04-2017): "Digital Radio Mondiale (DRM); System Specification".
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] ETSI TR 100 028 (all parts) (V1.4.1) (12-2001): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.3] ETSI TR 100 028-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 2".
[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.
ETSI

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8 ETSI EN 302 245 V2.1.1 (2018-06)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in Directive 2014/53/EU [i.1] and the
following apply:
amplitude imbalance: error caused by different amplification of the I and Q signals
antenna port: port of an apparatus which is designed, in normal operation, to be connected to an antenna using coaxial
cable
broadcasting service: radiocommunication service in which the transmissions are intended for direct reception by the
general public
NOTE: This service may include sound transmissions, television transmissions or other types of transmission.
channel bandwidth: frequency band of defined width (as a multiple of the carrier grid) including safety margin for
operation on adjacent channels, located symmetrically around a carrier frequency in the carrier grid
class of emission: set of characteristics of an emission, designated by standard symbols
NOTE: Type of modulation of the main carrier, modulating signal, type of information to be transmitted, and
also, if appropriate, any additional signal characteristics.
dBc: decibels relative to the unmodulated carrier power of the emission
NOTE: In the cases which do not have a carrier, for example in some digital modulation schemes where the
carrier is not accessible for measurement, the reference level equivalent to dBc is decibels relative to the
mean power P.
DRM transmitter: device comprising a DRM exciter, RF amplifier and RF system filter
enclosure port: physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
NOTE: In the case of integral antenna equipment, this port is inseparable from the antenna port.
harmonic: component of order greater than 1 of the Fourier series of a periodic quantity
harmonic number: integral number given by the ratio of the frequency of a harmonic to the fundamental frequency
NOTE: Second harmonic = 2 × fundamental frequency.
intermodulation products: unwanted frequencies resulting from intermodulation between carriers or harmonics of
emission, or between any oscillations generated to produce the carrier
mean power: average power supplied to the antenna port by a transmitter during an interval of time sufficiently long
compared with the lowest frequency encountered in the modulation envelope taken under normal operating conditions
multiplex: stream of all the digital data carrying one or more services within a single physical channel
necessary bandwidth: for a given class of emission, the width of the frequency band which is sufficient to ensure the
transmission of information at the rate and with the quality required under specified conditions
out-of-band emissions: emission on a frequency or frequencies immediately outside the necessary bandwidth which
results from the modulation process, but excluding spurious emissions
quadrature error: error caused by phase shift between the I and Q signals
reference bandwidth: bandwidth in which the emission level is specified
RF system filter: filter connected to the output of the RF amplifier to control output spectrum
NOTE: The RF system filter may be internal or external to the transmitter casing.
ETSI

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9 ETSI EN 302 245 V2.1.1 (2018-06)
RMS power: the apparent power of an AC power that is calculated by multiplying root-mean-square (rms) current by
the root mean square voltage
NOTE 1: In a purely resistive circuit this is held to be the equivalent heating effect of a DC power and can be
deemed to be true power. In a circuit that consists of reactance as well as resistance the apparent power is
greater than the true power (the vector difference between true power and apparent power is called
reactive power).
True Power = Vrms × (Irms ∆ cos φ)
Where Δ cos φ is the phase difference between voltage and current introduced by the reactance of the
load.
NOTE 2: From note 1 it becomes clear that unless any measuring system can be completely devoid of reactance
then the measured power cannot be considered to be RMS power. It therefore becomes apparent that this
parameter would be difficult to measure with any degree of accuracy at RF frequencies.
spurious emissions: emission on a frequency or frequencies which are outside the necessary bandwidth and the level of
which may be reduced without affecting the corresponding transmission of information
NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and
frequency conversion products but exclude out-of-band emissions.
unwanted emissions: spurious emissions and out-of-band emissions
3.2 Symbols
For the purposes of the present document, the following symbols apply:
-6
μ micro, 10
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
dB Decibel, logarithmic ratio (tenths of a "Bel")
dBm dB relative to one milliwatt
DRM Digital Radio Mondiale
EN European Norm
EUT Equipment Under Test
HF High Frequency
I In-phase component of a signal
LF Low Frequency
MER Modulation Error Ratio
MF Medium Frequency
N Noise power
OFDM Orthogonal Frequency Division Multiplex
Q Quadrature phase component of a signal
RF Radio Frequency
RMS Root Mean Square
s second (unit of time)
V Volt
W Watt
ETSI

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10 ETSI EN 302 245 V2.1.1 (2018-06)
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 declared by the manufacturer. 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 declared operational environmental profile.
4.2 Conformance requirements
4.2.1 Rated output power
4.2.1.1 Definition
The rated output power is the mean power that the transmitter shall deliver at its antenna port under the manufacturers
specified conditions of operation.
NOTE: It is, however, recommended that this parameter is not quoted as RMS power.
4.2.1.2 Limit
The mean output power shall be the rated output power under normal operating conditions as defined by the
manufacturer.
4.2.1.3 Conformance
Conformance tests as defined in clause 5.3.1 shall be carried out.
4.2.2 Frequency stability
4.2.2.1 Definition
The frequency stability of an emission is the variation of frequency against a predetermined time scale.
4.2.2.2 Limit
4.2.2.2.1 DRM transmitters operating below 30 MHz
For a period of not less than ninety days, the frequency of the transmitter shall stay within the tolerance of ±10 Hz.
4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz
For a period of not less than ninety days, the frequency of the transmitter shall stay within the tolerance of ±100 Hz.
4.2.2.3 Conformance
Conformance tests as defined in clause 5.3.2 shall be carried out.
ETSI

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50 mW (17 dBm)

11 ETSI EN 302 245 V2.1.1 (2018-06)
4.2.3 Spurious emissions
4.2.3.1 Def
...

Draft ETSI EN 302 245 V2.1.0 (2018-02)






HARMONISED EUROPEAN STANDARD
Transmitting equipment for the
Digital Radio Mondiale (DRM) sound broadcasting service;
Harmonised Standard for access to radio spectrum

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 302 245 V2.1.0 (2018-02)



Reference
REN/ERM-TG17-17
Keywords
audio, broadcasting, digital, DRM, harmonised
standard, radio, terrestrial, transmitter
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2018.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
GSM® and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 Draft ETSI EN 302 245 V2.1.0 (2018-02)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical requirements specifications . 10
4.1 Environmental profile . 10
4.2 Conformance requirements . 10
4.2.1 Rated output power . 10
4.2.1.1 Definition . 10
4.2.1.2 Limit . 10
4.2.1.3 Conformance . 10
4.2.2 Frequency stability . 10
4.2.2.1 Definition . 10
4.2.2.2 Limit . 10
4.2.2.2.1 DRM transmitters operating below 30 MHz . 10
4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 10
4.2.2.3 Conformance . 10
4.2.3 Spurious emissions . 11
4.2.3.1 Definition . 11
4.2.3.2 Limit . 11
4.2.3.2.1 DRM transmitters operating below 30 MHz . 11
4.2.3.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 12
4.2.3.3 Conformance . 12
4.2.4 Transmitter muting during frequency shift . 13
4.2.4.1 Definition . 13
4.2.4.2 Limits . 13
4.2.4.3 Conformance . 13
4.2.5 Out-of-band emissions . 13
4.2.5.1 Definition . 13
4.2.5.2 Limit . 13
4.2.5.2.1 DRM transmitters operating below 30 MHz . 13
4.2.5.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 15
4.2.5.3 Conformance . 16
4.2.6 Modulation Error Ratio (MER) . 16
4.2.6.1 Definition . 16
4.2.6.2 Limit . 16
4.2.6.2.1 DRM transmitters operating below 30 MHz . 16
4.2.6.2.2 DRM transmitters operating between 30 MHz and 300 MHz . 16
4.2.6.3 Conformance . 16
5 Testing for compliance with technical requirements . 17
5.1 Environmental conditions for testing . 17
5.2 Interpretation of the measurement results . 17
5.3 Methods of measurement . 17
5.3.1 Rated output power . 17
5.3.1.1 Method of measurement . 17
ETSI

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4 Draft ETSI EN 302 245 V2.1.0 (2018-02)
5.3.1.1.1 Initial conditions . 17
5.3.1.1.2 Procedure . 18
5.3.1.1.3 Test requirements . 18
5.3.2 Frequency stability . 18
5.3.2.1 Method of measurement . 18
5.3.2.1.1 Initial conditions . 18
5.3.2.1.2 Procedure . 18
5.3.2.1.3 Test requirements . 19
5.3.3 Spurious emissions . 19
5.3.3.1 Method of measurement . 19
5.3.3.1.1 Initial conditions . 19
5.3.3.1.2 Procedure . 19
5.3.3.1.3 Test requirements . 19
5.3.4 Transmitter muting during frequency shift . 20
5.3.4.1 Method of measurement . 20
5.3.4.1.1 Initial conditions . 20
5.3.4.1.2 Procedure . 20
5.3.4.1.3 Test requirements . 20
5.3.5 Out-of-band emissions . 20
5.3.5.1 Method of measurement . 20
5.3.5.1.1 Initial conditions . 20
5.3.5.1.2 Procedure . 20
5.3.5.1.3 Test requirements . 21
5.3.6 Modulation Error Ratio (MER) . 21
5.3.6.1 Method of measurement . 21
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 22
Annex B (normative): Typical measuring arrangements . 23
B.1 Testing arrangements for antenna port (and MER) measurements . 23
B.1.0 General . 23
B.1.1 Testing arrangement . 23
B.1.2 Test frequency range (antenna port measurements) . 24
B.1.3 Test modulating signal . 24
B.2 Test load characteristics . 24
Annex C (informative): Change history . 25
History . 26


ETSI

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5 Draft ETSI EN 302 245 V2.1.0 (2018-02)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote
phase of the ETSI standards EN Approval Procedure.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.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.

Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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6 Draft ETSI EN 302 245 V2.1.0 (2018-02)
Introduction
The present document describes the requirements for the design and operation of an DRM sound broadcasting service
transmitter.
ETSI

---------------------- Page: 6 ----------------------
7 Draft ETSI EN 302 245 V2.1.0 (2018-02)
1 Scope
The present document specifies technical characteristics and methods of measurements for transmitting equipment for
the Digital Radio Mondiale (DRM) sound broadcasting service operating in the LF band, MF band, HF band and VHF
band.
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 specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI ES 201 980 (V4.1.2) (04-2017): "Digital Radio Mondiale (DRM); System specification".
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] ETSI TR 100 028 (all parts) (V1.4.1) (12-2001): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.3] ETSI TR 100 028-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 2".
[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.
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8 Draft ETSI EN 302 245 V2.1.0 (2018-02)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in Directive 2014/53/EU [i.1] and the
following apply:
amplitude imbalance: error caused by different amplification of the I and Q signals
antenna port: port of an apparatus which is designed, in normal operation, to be connected to an antenna using coaxial
cable
broadcasting service: radiocommunication service in which the transmissions are intended for direct reception by the
general public
NOTE: This service may include sound transmissions, television transmissions or other types of transmission.
channel bandwidth: frequency band of defined width (as a multiple of the carrier grid) including safety margin for
operation on adjacent channels, located symmetrically around a carrier frequency in the carrier grid
class of emission: set of characteristics of an emission, designated by standard symbols
NOTE: Type of modulation of the main carrier, modulating signal, type of information to be transmitted, and
also, if appropriate, any additional signal characteristics.
dBc: decibels relative to the unmodulated carrier power of the emission
NOTE: In the cases which do not have a carrier, for example in some digital modulation schemes where the
carrier is not accessible for measurement, the reference level equivalent to dBc is decibels relative to the
mean power P.
DRM transmitter: device comprising a DRM exciter, RF amplifier and RF system filter
enclosure port: physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
NOTE: In the case of integral antenna equipment, this port is inseparable from the antenna port.
harmonic: component of order greater than 1 of the Fourier series of a periodic quantity
harmonic number: integral number given by the ratio of the frequency of a harmonic to the fundamental frequency
NOTE: Second harmonic = 2 × fundamental frequency.
intermodulation products: unwanted frequencies resulting from intermodulation between carriers or harmonics of
emission, or between any oscillations generated to produce the carrier
mean power: average power supplied to the antenna port by a transmitter during an interval of time sufficiently long
compared with the lowest frequency encountered in the modulation envelope taken under normal operating conditions
multiplex: stream of all the digital data carrying one or more services within a single physical channel
necessary bandwidth: for a given class of emission, the width of the frequency band which is sufficient to ensure the
transmission of information at the rate and with the quality required under specified conditions
out-of-band emissions: emission on a frequency or frequencies immediately outside the necessary bandwidth which
results from the modulation process, but excluding spurious emissions
quadrature error: error caused by phase shift between the I and Q signals
reference bandwidth: bandwidth in which the emission level is specified
RF system filter: filter connected to the output of the RF amplifier to control output spectrum
NOTE: The RF system filter may be internal or external to the transmitter casing.
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9 Draft ETSI EN 302 245 V2.1.0 (2018-02)
RMS power: the apparent power of an AC power that is calculated by multiplying root-mean-square (rms) current by
the root mean square voltage
NOTE 1: In a purely resistive circuit this is held to be the equivalent heating effect of a DC power and can be
deemed to be true power. In a circuit that consists of reactance as well as resistance the apparent power is
greater than the true power (the vector difference between true power and apparent power is called
reactive power).
True Power = Vrms × (Irms ∆ cos φ)
Where Δ cos φ is the phase difference between voltage and current introduced by the reactance of the
load.
NOTE 2: From note 1 it becomes clear that unless any measuring system can be completely devoid of reactance
then the measured power cannot be considered to be RMS power. It therefore becomes apparent that this
parameter would be difficult to measure with any degree of accuracy at RF frequencies.
spurious emissions: emission on a frequency or frequencies which are outside the necessary bandwidth and the level of
which may be reduced without affecting the corresponding transmission of information
NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and
frequency conversion products but exclude out-of-band emissions.
unwanted emissions: spurious emissions and out-of-band emissions
3.2 Symbols
For the purposes of the present document, the following symbols apply:
-6
μ micro, 10
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AI Amplitude Imbalance
dB Decibel, logarithmic ratio (tenths of a "Bel")
dBm dB relative to one milliwatt
COFDM Coded Orthogonal Frequency Division Multiplex
DRM Digital Radio Mondiale
EMC Electro-Magnetic Compatibility
EN European Norm
EUT Equipment Under Test
HF High Frequency
I In-phase component of a signal
ITU International Telecommunications Union
LF Low Frequency
LV Low Voltage
MER Modulation Error Ratio
MF Medium Frequency
N Noise power
OFDM Orthogonal Frequency Division Multiplex
Q Quadrature phase component of a signal
QE Quadrature Error
RF Radio Frequency
RMS Root Mean Square
s second (unit of time)
V Volt
W Watt
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10 Draft ETSI EN 302 245 V2.1.0 (2018-02)
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 declared by the manufacturer. 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 declared operational environmental profile.
4.2 Conformance requirements
4.2.1 Rated output power
4.2.1.1 Definition
The rated output power is the mean power that the transmitter shall deliver at its antenna port under the manufacturers
specified conditions of operation.
NOTE: It is, however, recommended that this parameter is not quoted as RMS power.
4.2.1.2 Limit
The mean output power shall be the rated output power under normal operating conditions as defined by the
manufacturer.
4.2.1.3 Conformance
Conformance tests as defined in clause 5.3.1 shall be carried out.
4.2.2 Frequency stability
4.2.2.1 Definition
The frequency stability of an emission is the variation of frequency against a predetermined time scale.
4.2.2.2 Limit
4.2.2.2.1 DRM transmitters operating below 30 MHz
For a period of not less than ninety days, the frequency of the transmitter shall stay within the tolerance of ±10 Hz.
4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz
...