Transmitting equipment for the Digital Radio Mondiale (DRM) service - Harmonised Standard for access to radio spectrum

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.

Oddajniška oprema za storitve svetovnega digitalnega radia (DRM) - Harmonizirani standard za dostop do radijskega spektra

Ta dokument določa tehnične lastnosti in metode merjenja za oddajniško opremo za zvokovne radiodifuzijske storitve svetovnega digitalnega radia (DRM), ki deluje v pasovih LF, MF, HF in VHF. OPOMBA: Razmerje med tem dokumentom in bistvenimi zahtevami člena 3.2 Direktive 2014/53/EU [i.1] je podano v dodatku A.

General Information

Status
Published
Public Enquiry End Date
30-Apr-2022
Publication Date
23-May-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
23-May-2022
Due Date
28-Jul-2022
Completion Date
24-May-2022

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ETSI EN 302 245 V2.2.1 (2022-05)
HARMONISED EUROPEAN STANDARD
Transmitting equipment for the
Digital Radio Mondiale (DRM) service;
Harmonised Standard for access to radio spectrum
---------------------- Page: 1 ----------------------
2 ETSI EN 302 245 V2.2.1 (2022-05)
Reference
REN/ERM-TG17-202
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 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

Users of the present document should be aware that the document may be subject to revision or change of status.

Information on the current status of this and other ETSI documents is available at

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

If you find a security vulnerability in the present document, please report it through our

Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
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 2022.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 302 245 V2.2.1 (2022-05)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ..................................................................................................... 9

4.1 Environmental profile ......................................................................................................................................... 9

4.2 Conformance requirements ................................................................................................................................ 9

4.2.1 Rated output power ....................................................................................................................................... 9

4.2.1.1 Definition ................................................................................................................................................ 9

4.2.1.2 Limit ........................................................................................................................................................ 9

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 ..................................................................................................................................... 10

4.2.3.1 Definition .............................................................................................................................................. 10

4.2.3.2 Limit ...................................................................................................................................................... 10

4.2.3.2.1 DRM transmitters operating below 30 MHz ................................................................................... 10

4.2.3.2.2 DRM transmitters operating between 30 MHz and 300 MHz ......................................................... 11

4.2.3.3 Conformance ......................................................................................................................................... 12

4.2.4 Transmitter muting during frequency shift ................................................................................................. 12

4.2.4.1 Definition .............................................................................................................................................. 12

4.2.4.2 Limits .................................................................................................................................................... 12

4.2.4.3 Conformance ......................................................................................................................................... 12

4.2.5 Out-of-band emissions ................................................................................................................................ 12

4.2.5.1 Definition .............................................................................................................................................. 12

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 ......................................................... 14

4.2.5.3 Conformance ......................................................................................................................................... 15

4.2.6 Modulation Error Ratio (MER) .................................................................................................................. 15

4.2.6.1 Definition .............................................................................................................................................. 15

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 .............................................................................. 16

5.1 Environmental conditions for testing ............................................................................................................... 16

5.2 Test modulating signal ..................................................................................................................................... 16

5.3 Methods of measurement ................................................................................................................................. 16

5.3.1 Rated output power ..................................................................................................................................... 16

5.3.1.1 Initial conditions ................................................................................................................................... 16

5.3.1.2 Procedure .............................................................................................................................................. 17

5.3.1.3 Test requirements .................................................................................................................................. 17

ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 302 245 V2.2.1 (2022-05)

5.3.2 Frequency stability ...................................................................................................................................... 17

5.3.2.1 Initial conditions ................................................................................................................................... 17

5.3.2.2 Procedure .............................................................................................................................................. 17

5.3.2.3 Test requirements .................................................................................................................................. 17

5.3.3 Spurious emissions ..................................................................................................................................... 17

5.3.3.1 Initial conditions ................................................................................................................................... 17

5.3.3.2 Procedure .............................................................................................................................................. 18

5.3.3.3 Test requirements .................................................................................................................................. 18

5.3.4 Transmitter muting during frequency shift ................................................................................................. 18

5.3.4.1 Initial conditions ................................................................................................................................... 18

5.3.4.2 Procedure .............................................................................................................................................. 18

5.3.4.3 Test requirements .................................................................................................................................. 18

5.3.5 Out-of-band emissions ................................................................................................................................ 18

5.3.5.1 Initial conditions ................................................................................................................................... 18

5.3.5.2 Procedure .............................................................................................................................................. 19

5.3.5.3 Test requirements .................................................................................................................................. 19

5.3.6 Modulation Error Ratio (MER) .................................................................................................................. 19

5.3.6.1 Initial conditions ................................................................................................................................... 19

5.3.6.2 Procedure .............................................................................................................................................. 19

5.3.6.3 Test requirements .................................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Measuring arrangements .............................................................................. 22

B.1 Testing arrangements for antenna port (and MER) measurements ........................................................ 22

B.2 Test load characteristics ......................................................................................................................... 22

Annex C (informative): Maximum measurement uncertainty ........................................................... 23

Annex D (informative): Change history ............................................................................................... 24

History .............................................................................................................................................................. 25

ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 302 245 V2.2.1 (2022-05)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic

compatibility and Radio spectrum Matters (ERM).

The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.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 2022
Date of latest announcement of this EN (doa): 31 August 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2023
Date of withdrawal of any conflicting National Standard (dow): 29 February 2024
ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 302 245 V2.2.1 (2022-05)
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 6 ----------------------
7 ETSI EN 302 245 V2.2.1 (2022-05)
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 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] ETSI ES 201 980 (V4.2.1) (01-2021): "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] 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.
ETSI
---------------------- Page: 7 ----------------------
8 ETSI EN 302 245 V2.2.1 (2022-05)
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in Directive 2014/53/EU [i.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

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

necessary bandwidth: 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

rated output power: mean power that the transmitter delivers at its antenna port under specified conditions of

operation
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.

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.
ETSI
---------------------- Page: 8 ----------------------
9 ETSI EN 302 245 V2.2.1 (2022-05)
unwanted emissions: spurious emissions and out-of-band emissions
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Hz Hertz (cycles per second)
μ micro, 10
V Volt
W Watt
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
DC Direct Current
DRM Digital Radio Mondiale
EFTA European Free Trade Association
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
QAM Quadrature Amplitude Modulation
RF Radio 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 at all times when operating within the boundary limits of the operational

environmental profile defined by its intended use.
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.

4.2.1.2 Limit

The mean output power shall be within -0,5 dB of the rated output power under normal operating conditions as defined

by the manufacturer.
ETSI
---------------------- Page: 9 ----------------------
10 ETSI EN 302 245 V2.2.1 (2022-05)
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

The stability of the centre frequency shall not deviate more than 10 Hz from its nominal value.

4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz

The stability of the centre frequency shall not deviate more than 100 Hz from its nominal value.

4.2.2.3 Conformance
Conformance tests as defined in clause 5.3.2 shall be carried out.
4.2.3 Spurious emissions
4.2.3.1 Definition

Emission on a frequency or on frequencies which are outside the necessary bandwidth and the level of which may be

reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic

emissions, parasitic emissions, intermodulation products and frequency conversion products but exclude out-of-band

emissions.

For the purposes of the present document spurious emissions are emissions at frequencies outside 500 % of the

necessary bandwidth.

The reference bandwidth used for spurious emissions measurements shall be as follows:

• 1 kHz between 9 kHz and 150 kHz;
• 10 kHz between 150 kHz and 30 MHz;
• 100 kHz between 30 MHz and 1 GHz;
• 1 MHz above 1 GHz.
4.2.3.2 Limit
4.2.3.2.1 DRM transmitters operating below 30 MHz

Spurious emissions shall not exceed the values set out in table 1 and additionally as shown in figure 1 for the frequency

range 9 kHz to 1 GHz.
ETSI
---------------------- Page: 10 ----------------------
50 mW (17 dBm)
11 ETSI EN 302 245 V2.2.1 (2022-05)
Table 1: Spurious emission limits for DRM transmitters operating below 30 MHz
Mean power Limits

of the transmitter Mean power absolute levels (dBm) or relative levels (dBc) below the

mean power supplied to the antenna port in the reference bandwidth
(see clause 4.2.3.1)

All power ranges -50 dBc, without exceeding the absolute mean power of 50 mW (17 dBm)

dBc
9 kHz to 1 GHz
-50
-60
-70
-80
-90
30 40 50 60 70 80 90 dBm
2,5 5 25 50 250 500 2,5 5 25 50 250 500
1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW
mean power of the transmitter
...

SLOVENSKI STANDARD
SIST EN 302 245 V2.2.1:2022
01-julij-2022
Oddajniška oprema za storitve svetovnega digitalnega radia (DRM) - Harmonizirani
standard za dostop do radijskega spektra
Transmitting equipment for the Digital Radio Mondiale (DRM) service - Harmonised
Standard for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 302 245 V2.2.1 (2022-05)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
SIST EN 302 245 V2.2.1:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 302 245 V2.2.1:2022
---------------------- Page: 2 ----------------------
SIST EN 302 245 V2.2.1:2022
ETSI EN 302 245 V2.2.1 (2022-05)
HARMONISED EUROPEAN STANDARD
Transmitting equipment for the
Digital Radio Mondiale (DRM) service;
Harmonised Standard for access to radio spectrum
---------------------- Page: 3 ----------------------
SIST EN 302 245 V2.2.1:2022
2 ETSI EN 302 245 V2.2.1 (2022-05)
Reference
REN/ERM-TG17-202
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 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

Users of the present document should be aware that the document may be subject to revision or change of status.

Information on the current status of this and other ETSI documents is available at

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

If you find a security vulnerability in the present document, please report it through our

Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
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 2022.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 302 245 V2.2.1:2022
3 ETSI EN 302 245 V2.2.1 (2022-05)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ..................................................................................................... 9

4.1 Environmental profile ......................................................................................................................................... 9

4.2 Conformance requirements ................................................................................................................................ 9

4.2.1 Rated output power ....................................................................................................................................... 9

4.2.1.1 Definition ................................................................................................................................................ 9

4.2.1.2 Limit ........................................................................................................................................................ 9

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 ..................................................................................................................................... 10

4.2.3.1 Definition .............................................................................................................................................. 10

4.2.3.2 Limit ...................................................................................................................................................... 10

4.2.3.2.1 DRM transmitters operating below 30 MHz ................................................................................... 10

4.2.3.2.2 DRM transmitters operating between 30 MHz and 300 MHz ......................................................... 11

4.2.3.3 Conformance ......................................................................................................................................... 12

4.2.4 Transmitter muting during frequency shift ................................................................................................. 12

4.2.4.1 Definition .............................................................................................................................................. 12

4.2.4.2 Limits .................................................................................................................................................... 12

4.2.4.3 Conformance ......................................................................................................................................... 12

4.2.5 Out-of-band emissions ................................................................................................................................ 12

4.2.5.1 Definition .............................................................................................................................................. 12

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 ......................................................... 14

4.2.5.3 Conformance ......................................................................................................................................... 15

4.2.6 Modulation Error Ratio (MER) .................................................................................................................. 15

4.2.6.1 Definition .............................................................................................................................................. 15

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 .............................................................................. 16

5.1 Environmental conditions for testing ............................................................................................................... 16

5.2 Test modulating signal ..................................................................................................................................... 16

5.3 Methods of measurement ................................................................................................................................. 16

5.3.1 Rated output power ..................................................................................................................................... 16

5.3.1.1 Initial conditions ................................................................................................................................... 16

5.3.1.2 Procedure .............................................................................................................................................. 17

5.3.1.3 Test requirements .................................................................................................................................. 17

ETSI
---------------------- Page: 5 ----------------------
SIST EN 302 245 V2.2.1:2022
4 ETSI EN 302 245 V2.2.1 (2022-05)

5.3.2 Frequency stability ...................................................................................................................................... 17

5.3.2.1 Initial conditions ................................................................................................................................... 17

5.3.2.2 Procedure .............................................................................................................................................. 17

5.3.2.3 Test requirements .................................................................................................................................. 17

5.3.3 Spurious emissions ..................................................................................................................................... 17

5.3.3.1 Initial conditions ................................................................................................................................... 17

5.3.3.2 Procedure .............................................................................................................................................. 18

5.3.3.3 Test requirements .................................................................................................................................. 18

5.3.4 Transmitter muting during frequency shift ................................................................................................. 18

5.3.4.1 Initial conditions ................................................................................................................................... 18

5.3.4.2 Procedure .............................................................................................................................................. 18

5.3.4.3 Test requirements .................................................................................................................................. 18

5.3.5 Out-of-band emissions ................................................................................................................................ 18

5.3.5.1 Initial conditions ................................................................................................................................... 18

5.3.5.2 Procedure .............................................................................................................................................. 19

5.3.5.3 Test requirements .................................................................................................................................. 19

5.3.6 Modulation Error Ratio (MER) .................................................................................................................. 19

5.3.6.1 Initial conditions ................................................................................................................................... 19

5.3.6.2 Procedure .............................................................................................................................................. 19

5.3.6.3 Test requirements .................................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Measuring arrangements .............................................................................. 22

B.1 Testing arrangements for antenna port (and MER) measurements ........................................................ 22

B.2 Test load characteristics ......................................................................................................................... 22

Annex C (informative): Maximum measurement uncertainty ........................................................... 23

Annex D (informative): Change history ............................................................................................... 24

History .............................................................................................................................................................. 25

ETSI
---------------------- Page: 6 ----------------------
SIST EN 302 245 V2.2.1:2022
5 ETSI EN 302 245 V2.2.1 (2022-05)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic

compatibility and Radio spectrum Matters (ERM).

The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.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 2022
Date of latest announcement of this EN (doa): 31 August 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2023
Date of withdrawal of any conflicting National Standard (dow): 29 February 2024
ETSI
---------------------- Page: 7 ----------------------
SIST EN 302 245 V2.2.1:2022
6 ETSI EN 302 245 V2.2.1 (2022-05)
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 8 ----------------------
SIST EN 302 245 V2.2.1:2022
7 ETSI EN 302 245 V2.2.1 (2022-05)
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 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] ETSI ES 201 980 (V4.2.1) (01-2021): "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] 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.
ETSI
---------------------- Page: 9 ----------------------
SIST EN 302 245 V2.2.1:2022
8 ETSI EN 302 245 V2.2.1 (2022-05)
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in Directive 2014/53/EU [i.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

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

necessary bandwidth: 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

rated output power: mean power that the transmitter delivers at its antenna port under specified conditions of

operation
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.

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.
ETSI
---------------------- Page: 10 ----------------------
SIST EN 302 245 V2.2.1:2022
9 ETSI EN 302 245 V2.2.1 (2022-05)
unwanted emissions: spurious emissions and out-of-band emissions
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Hz Hertz (cycles per second)
μ micro, 10
V Volt
W Watt
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
DC Direct Current
DRM Digital Radio Mondiale
EFTA European Free Trade Association
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
QAM Quadrature Amplitude Modulation
RF Radio 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 at all times when operating within the boundary limits of the operational

environmental profile defined by its intended use.
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.

4.2.1.2 Limit

The mean output power shall be within -0,5 dB of the rated output power under normal operating conditions as defined

by the manufacturer.
ETSI
---------------------- Page: 11 ----------------------
SIST EN 302 245 V2.2.1:2022
10 ETSI EN 302 245 V2.2.1 (2022-05)
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

The stability of the centre frequency shall not deviate more than 10 Hz from its nominal value.

4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz

The stability of the centre frequency shall not deviate more than 100 Hz from its nominal value.

4.2.2.3 Conformance
Conformance tests as defined in clause 5.3.2 shall be carried out.
4.2.3 Spurious emissions
4.2.3.1 Definition

Emission on a frequency or on frequencies which are outside the necessary bandwidth and the level of which may be

reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic

emissions, parasitic emissions, intermodulation products and frequency conversion products but exclude out-of-band

emissions.

For the purposes of the present document spurious emissions are emissions at frequencies outside

...

Draft ETSI EN 302 245 V2.2.0 (2022-02)
HARMONISED EUROPEAN STANDARD
Transmitting equipment for the
Digital Radio Mondiale (DRM) service;
Harmonised Standard for access to radio spectrum
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Reference
REN/ERM-TG17-202
Keywords
audio, broadcasting, digital, DRM, harmonised
standard, radio, terrestrial, transmitter
ETSI
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© ETSI 2022.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ..................................................................................................... 9

4.1 Environmental profile ......................................................................................................................................... 9

4.2 Conformance requirements ................................................................................................................................ 9

4.2.1 Rated output power ....................................................................................................................................... 9

4.2.1.1 Definition ................................................................................................................................................ 9

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 ..................................................................................................................................... 10

4.2.3.1 Definition .............................................................................................................................................. 10

4.2.3.2 Limit ...................................................................................................................................................... 10

4.2.3.2.1 DRM transmitters operating below 30 MHz ................................................................................... 10

4.2.3.2.2 DRM transmitters operating between 30 MHz and 300 MHz ......................................................... 11

4.2.3.3 Conformance ......................................................................................................................................... 12

4.2.4 Transmitter muting during frequency shift ................................................................................................. 12

4.2.4.1 Definition .............................................................................................................................................. 12

4.2.4.2 Limits .................................................................................................................................................... 12

4.2.4.3 Conformance ......................................................................................................................................... 12

4.2.5 Out-of-band emissions ................................................................................................................................ 12

4.2.5.1 Definition .............................................................................................................................................. 12

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 ......................................................... 14

4.2.5.3 Conformance ......................................................................................................................................... 15

4.2.6 Modulation Error Ratio (MER) .................................................................................................................. 15

4.2.6.1 Definition .............................................................................................................................................. 15

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 .............................................................................. 16

5.1 Environmental conditions for testing ............................................................................................................... 16

5.2 Test modulating signal ..................................................................................................................................... 16

5.3 Methods of measurement ................................................................................................................................. 16

5.3.1 Rated output power ..................................................................................................................................... 16

5.3.1.1 Initial conditions ................................................................................................................................... 16

5.3.1.2 Procedure .............................................................................................................................................. 17

5.3.1.3 Test requirements .................................................................................................................................. 17

ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 302 245 V2.2.0 (2022-02)

5.3.2 Frequency stability ...................................................................................................................................... 17

5.3.2.1 Initial conditions ................................................................................................................................... 17

5.3.2.2 Procedure .............................................................................................................................................. 17

5.3.2.3 Test requirements .................................................................................................................................. 17

5.3.3 Spurious emissions ..................................................................................................................................... 17

5.3.3.1 Initial conditions ................................................................................................................................... 17

5.3.3.2 Procedure .............................................................................................................................................. 18

5.3.3.3 Test requirements .................................................................................................................................. 18

5.3.4 Transmitter muting during frequency shift ................................................................................................. 18

5.3.4.1 Initial conditions ................................................................................................................................... 18

5.3.4.2 Procedure .............................................................................................................................................. 18

5.3.4.3 Test requirements .................................................................................................................................. 18

5.3.5 Out-of-band emissions ................................................................................................................................ 18

5.3.5.1 Initial conditions ................................................................................................................................... 18

5.3.5.2 Procedure .............................................................................................................................................. 19

5.3.5.3 Test requirements .................................................................................................................................. 19

5.3.6 Modulation Error Ratio (MER) .................................................................................................................. 19

5.3.6.1 Initial conditions ................................................................................................................................... 19

5.3.6.2 Procedure .............................................................................................................................................. 19

5.3.6.3 Test requirements .................................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Measuring arrangements .............................................................................. 22

B.1 Testing arrangements for antenna port (and MER) measurements ........................................................ 22

B.2 Test load characteristics ......................................................................................................................... 22

Annex C (informative): Maximum measurement uncertainty ........................................................... 23

Annex D (informative): Change history ............................................................................................... 24

History .............................................................................................................................................................. 25

ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This draft 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

ETSI
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 302 245 V2.2.0 (2022-02)
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 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] ETSI ES 201 980 (V4.2.1) (01-2021): "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] 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.
ETSI
---------------------- Page: 7 ----------------------
8 Draft ETSI EN 302 245 V2.2.0 (2022-02)
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in Directive 2014/53/EU [i.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

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

necessary bandwidth: 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

rated output power: mean power that the transmitter delivers at its antenna port under specified conditions of

operation
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
---------------------- Page: 8 ----------------------
9 Draft ETSI EN 302 245 V2.2.0 (2022-02)

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:
Hz Hertz (cycles per second)
μ micro, 10
V Volt
W Watt
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
DC Direct Current
DRM Digital Radio Mondiale
EFTA European Free Trade Association
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
QAM Quadrature Amplitude Modulation
RF Radio 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 at all times when operating within the boundary limits of the operational

environmental profile defined by its intended use.
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.

ETSI
---------------------- Page: 9 ----------------------
10 Draft ETSI EN 302 245 V2.2.0 (2022-02)
4.2.1.2 Limit

The mean output power shall be within -0,5 dB of 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

The stability of the centre frequency shall not deviate more than 10 Hz from its nominal value.

4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz

The stability of the centre frequency shall not deviate more than 100 Hz from its nominal value.

4.2.2.3 Conformance
Conformance tests as defined in clause 5.3.2 shall be carried out.
4.2.3 Spurious emissions
4.2.3.1 Definition

Emission on a frequency or on frequencies which are outside the necessary bandwidth and the level of which may be

reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic

emissions, parasitic emissions, intermodulation products and frequency conversion products but exclude out-of-band

emissions.

For the purposes of the present document spurious emissions are emissions at frequencies outside 500 % of the

necessary bandwidth.

The reference bandwidth used for spurious emissions measurements shall be as follows:

• 1 kHz between 9 kHz and 150 kHz;
• 10 kHz between 150 kHz and 30 MHz;
• 100 kHz between 30 MHz and 1 GHz;
• 1 MHz above 1 GHz.
4.2.3.2 Limit
4.2.3.2.1 DRM transmitters operating below 30 MHz

Spurious emissions shall not exceed the values set out in table 1 and additionally as shown in figure 1 for the frequency

range 9 kHz to 1 GHz.
ETSI
---------------------- Page: 10 ----------------------
50 mW (17 dBm)
11 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Table 1: Spurious emission limits for DRM transmitters operating below 30 MHz
Mean power Limits

of the transmitter Mean power absolute levels (dBm) or relative levels (dBc) below the

mean power supplied to the antenna port in the reference bandwidth
(see clause 4.2.3.1)

All power ranges -50 dBc, without exceeding the absolute mean power of 50 mW (17 dBm)

dBc
9 kHz to 1 GHz
-50
-60
-70
-80
-90
30 40 50 60 70 80 90 dBm
2,5 5 25 50 250 500 2,5 5 25 50 250 500
1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW
mean power of the transmitter
Figure 1: Spurious emission lim
...

SLOVENSKI STANDARD
oSIST prEN 302 245 V2.2.0:2022
01-april-2022
Oddajniška oprema za storitve svetovnega digitalnega radia (DRM) - Harmonizirani
standard za dostop do radijskega spektra
Transmitting equipment for the Digital Radio Mondiale (DRM) service - Harmonised
Standard for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 302 245 V2.2.0 (2022-02)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
oSIST prEN 302 245 V2.2.0:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 302 245 V2.2.0:2022
---------------------- Page: 2 ----------------------
oSIST prEN 302 245 V2.2.0:2022
Draft ETSI EN 302 245 V2.2.0 (2022-02)
HARMONISED EUROPEAN STANDARD
Transmitting equipment for the
Digital Radio Mondiale (DRM) service;
Harmonised Standard for access to radio spectrum
---------------------- Page: 3 ----------------------
oSIST prEN 302 245 V2.2.0:2022
2 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Reference
REN/ERM-TG17-202
Keywords
audio, broadcasting, digital, DRM, harmonised
standard, radio, terrestrial, transmitter
ETSI
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ETSI
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oSIST prEN 302 245 V2.2.0:2022
3 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ..................................................................................................... 9

4.1 Environmental profile ......................................................................................................................................... 9

4.2 Conformance requirements ................................................................................................................................ 9

4.2.1 Rated output power ....................................................................................................................................... 9

4.2.1.1 Definition ................................................................................................................................................ 9

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 ..................................................................................................................................... 10

4.2.3.1 Definition .............................................................................................................................................. 10

4.2.3.2 Limit ...................................................................................................................................................... 10

4.2.3.2.1 DRM transmitters operating below 30 MHz ................................................................................... 10

4.2.3.2.2 DRM transmitters operating between 30 MHz and 300 MHz ......................................................... 11

4.2.3.3 Conformance ......................................................................................................................................... 12

4.2.4 Transmitter muting during frequency shift ................................................................................................. 12

4.2.4.1 Definition .............................................................................................................................................. 12

4.2.4.2 Limits .................................................................................................................................................... 12

4.2.4.3 Conformance ......................................................................................................................................... 12

4.2.5 Out-of-band emissions ................................................................................................................................ 12

4.2.5.1 Definition .............................................................................................................................................. 12

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 ......................................................... 14

4.2.5.3 Conformance ......................................................................................................................................... 15

4.2.6 Modulation Error Ratio (MER) .................................................................................................................. 15

4.2.6.1 Definition .............................................................................................................................................. 15

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 .............................................................................. 16

5.1 Environmental conditions for testing ............................................................................................................... 16

5.2 Test modulating signal ..................................................................................................................................... 16

5.3 Methods of measurement ................................................................................................................................. 16

5.3.1 Rated output power ..................................................................................................................................... 16

5.3.1.1 Initial conditions ................................................................................................................................... 16

5.3.1.2 Procedure .............................................................................................................................................. 17

5.3.1.3 Test requirements .................................................................................................................................. 17

ETSI
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oSIST prEN 302 245 V2.2.0:2022
4 Draft ETSI EN 302 245 V2.2.0 (2022-02)

5.3.2 Frequency stability ...................................................................................................................................... 17

5.3.2.1 Initial conditions ................................................................................................................................... 17

5.3.2.2 Procedure .............................................................................................................................................. 17

5.3.2.3 Test requirements .................................................................................................................................. 17

5.3.3 Spurious emissions ..................................................................................................................................... 17

5.3.3.1 Initial conditions ................................................................................................................................... 17

5.3.3.2 Procedure .............................................................................................................................................. 18

5.3.3.3 Test requirements .................................................................................................................................. 18

5.3.4 Transmitter muting during frequency shift ................................................................................................. 18

5.3.4.1 Initial conditions ................................................................................................................................... 18

5.3.4.2 Procedure .............................................................................................................................................. 18

5.3.4.3 Test requirements .................................................................................................................................. 18

5.3.5 Out-of-band emissions ................................................................................................................................ 18

5.3.5.1 Initial conditions ................................................................................................................................... 18

5.3.5.2 Procedure .............................................................................................................................................. 19

5.3.5.3 Test requirements .................................................................................................................................. 19

5.3.6 Modulation Error Ratio (MER) .................................................................................................................. 19

5.3.6.1 Initial conditions ................................................................................................................................... 19

5.3.6.2 Procedure .............................................................................................................................................. 19

5.3.6.3 Test requirements .................................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Measuring arrangements .............................................................................. 22

B.1 Testing arrangements for antenna port (and MER) measurements ........................................................ 22

B.2 Test load characteristics ......................................................................................................................... 22

Annex C (informative): Maximum measurement uncertainty ........................................................... 23

Annex D (informative): Change history ............................................................................................... 24

History .............................................................................................................................................................. 25

ETSI
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oSIST prEN 302 245 V2.2.0:2022
5 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
Trademarks

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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

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not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This draft 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

ETSI
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oSIST prEN 302 245 V2.2.0:2022
6 Draft ETSI EN 302 245 V2.2.0 (2022-02)
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 8 ----------------------
oSIST prEN 302 245 V2.2.0:2022
7 Draft ETSI EN 302 245 V2.2.0 (2022-02)
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 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] ETSI ES 201 980 (V4.2.1) (01-2021): "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] 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.
ETSI
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oSIST prEN 302 245 V2.2.0:2022
8 Draft ETSI EN 302 245 V2.2.0 (2022-02)
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in Directive 2014/53/EU [i.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

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

necessary bandwidth: 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

rated output power: mean power that the transmitter delivers at its antenna port under specified conditions of

operation
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
---------------------- Page: 10 ----------------------
oSIST prEN 302 245 V2.2.0:2022
9 Draft ETSI EN 302 245 V2.2.0 (2022-02)

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:
Hz Hertz (cycles per second)
μ micro, 10
V Volt
W Watt
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
DC Direct Current
DRM Digital Radio Mondiale
EFTA European Free Trade Association
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
QAM Quadrature Amplitude Modulation
RF Radio 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 at all times when operating within the boundary limits of the operational

environmental profile defined by its intended use.
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.

ETSI
---------------------- Page: 11 ----------------------
oSIST prEN 302 245 V2.2.0:2022
10 Draft ETSI EN 302 245 V2.2.0 (2022-02)
4.2.1.2 Limit

The mean output power shall be within -0,5 dB of 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

The stability of the centre frequency shall not deviate more than 10 Hz from its nominal value.

4.2.2.2.2 DRM transmitters operating between 30 MHz and 300 MHz

The stability of the centre frequency shall not deviate more than 100 Hz from its nominal value.

4.2.2.3 Conformance
Conformance tests as defined in clause 5.3.2 shall be carried out.
4.2.3 Spurious emissions
4.2.3.1 Definition

Emission on a frequency or on frequencies which are outside the necessary bandwidth and the level of which may be

reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic

emissions, parasitic emissions, intermodulation products and frequency conversion products but exclude out-of-band

emissions.

For the purposes of the present document spurious emissions are emissions at frequencies outside 500 % o

...

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