ETSI EN 302 608 V2.1.1 (2017-11)

ETSI EN 302 608 V2.1.1 (2017-11)






HARMONISED EUROPEAN STANDARD
Short Range Devices (SRD);
Radio equipment for Eurobalise railway systems;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU

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2 ETSI EN 302 608 V2.1.1 (2017-11)



Reference
REN/ERM-TG28-520
Keywords
harmonised standard, radio, railways, SRD,
testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

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

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

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

© ETSI 2017.
All rights reserved.

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

---------------------- Page: 2 ----------------------
3 ETSI EN 302 608 V2.1.1 (2017-11)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical Requirements Specifications . 9
4.1 Environmental Profile . 9
4.2 Transmitter Conformance Requirements . 10
4.2.1 OBE TX Field Strength and Transmitter Mask . 10
4.2.1.1 Applicability. 10
4.2.1.2 Limits . 10
4.2.1.3 Conformance . 10
4.2.1.4 Maximum Allowable Measurement Uncertainty . 10
4.2.2 OBE Unwanted Emission . 10
4.2.2.1 Applicability. 10
4.2.2.2 Limits . 10
4.2.2.3 Conformance . 11
4.2.2.4 Maximum Allowable Measurement Uncertainty . 11
4.2.3 Eurobalise TX Field Strength and Transmitter Mask . 11
4.2.3.1 Applicability. 11
4.2.3.2 Limits . 11
4.2.3.3 Conformance . 12
4.2.3.4 Maximum Allowable Measurement Uncertainty . 12
4.2.4 Eurobalise Unwanted Emission . 12
4.2.4.1 Applicability. 12
4.2.4.2 Limits . 12
4.2.4.3 Conformance . 12
4.2.4.4 Maximum Allowable Measurement Uncertainty . 12
4.3 Receiver Conformance Requirements . 13
4.3.1 OBE Receiver Sensitivity . 13
4.3.1.1 Applicability. 13
4.3.1.2 Limits . 13
4.3.1.3 Conformance . 13
4.3.2 OBE Receiver Blocking . 13
4.3.2.1 Applicability. 13
4.3.2.2 Limits . 13
4.3.2.3 Conformance . 13
5 Testing for Compliance with Technical Requirements . 13
5.1 Environmental Conditions for Testing . 13
5.2 General Conditions for Testing . 14
5.2.1 Test Conditions . 14
5.2.2 Test Power Source . 14
5.2.3 Nominal Test Conditions . 14
5.2.3.1 Normal Temperature and Humidity . 14
5.2.3.2 Normal Test Power Source, Mains Voltage . 14
5.2.3.3 Normal Test Power Source, Other Power Sources . 14
ETSI

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4 ETSI EN 302 608 V2.1.1 (2017-11)
5.2.4 Requirements for Test Modulation . 14
5.2.5 Choice of Equipment . 15
5.2.6 Measuring Receiver . 15
5.3 Interpretation of the Measurement Results . 15
6 Performance Test Suites . 16
6.1 Conformance Methods of Measurement for Transmitter . 16
6.1.1 OBE TX Field Strength and Transmitter Mask . 16
6.1.2 OBE Unwanted Emission . 16
6.1.3 Eurobalise Tx Field Strength and Transmitter Mask . 17
6.1.4 Eurobalise Unwanted Emission . 17
6.2 Conformance Methods of Measurement for Receiver . 18
6.2.1 OBE Receiver Sensitivity . 18
6.2.2 OBE Receiver Blocking . 18
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 19
Annex B (informative): Change history . 20
History . 21


ETSI

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5 ETSI EN 302 608 V2.1.1 (2017-11)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.8] 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: 27 November 2017
Date of latest announcement of this EN (doa): 28 February 2018
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2018
Date of withdrawal of any conflicting National Standard (dow): 31 August 2019

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

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6 ETSI EN 302 608 V2.1.1 (2017-11)
Introduction
The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to
cover all radio and telecommunications terminal equipment within the scope of the Directive 2014/53/EU [i.1].
The Eurobalise transmission system is defined by the specifications [1] and [2] of the UNISIG consortium.

ETSI

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7 ETSI EN 302 608 V2.1.1 (2017-11)
1 Scope
The present document specifies technical characteristics and methods of measurements for radio transmitters and
receivers used in the Eurobalise transmission system. The system is used in railway environment for the communication
between tracks and trains.
It applies to the following equipment units:
a) the On-Board Equipment (OBE) Tele-powering the Eurobalise; and
b) the Eurobalise that is always installed in between the rails.
The OBE comprises a transmitter (normally un-modulated) and a receiver fitted with an integral or dedicated antenna.
The Eurobalise FSK-modulated transmitter is Tele-powered by the OBE and has an integral antenna.
The Eurobalise transmission system operates in frequency bands listed in table 1 in accordance with the EC Decision
2013/752/EU [i.5] and ERC Recommendation 70-03 [i.2], annex 4.
These radio equipment types are capable of operating at the following frequencies as given in table 1.
Table 1: Radio communications frequencies
Radio communications frequencies
Note
OBE receive frequency band 2,5 MHz to 6 MHz (4,234 MHz centre
frequency)
Eurobalise transmit frequency band 4,234 MHz ± 1 MHz

NOTE: EC decision for SRDs [i.5] and ERC Recommendation 70-03 [i.2] are providing the usage conditions for
Eurobalise transmissions in frequency range 984 - 7 484 kHz (4,234 MHz centre frequency). The 27 MHz
band is only used in the OBE for telepowering the Eurobalise, which is not in the scope of the present
document.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.1] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] UNISIG SUBSET-036-3.1.0: "FFFIS for Eurobalise", December 2015.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/SUBSET-036%20v310.pdf.
[2] UNISIG SUBSET-085-3.0.0: "Test Specification for Eurobalise FFFIS", February 2012.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/Set-2-Index043-SUBSET-
085%20v300.pdf.
ETSI

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8 ETSI EN 302 608 V2.1.1 (2017-11)
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] CEPT/ERC/Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.3] ETSI TR 100 028 (V1.4.1) (12-2001) (all parts): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.4] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[i.5] EC Decision 2013/752/EU: "Commission Implementing DECISION of 11 December 2013
amending Decision 2006/771/EC on harmonisation of the radio spectrum for use by short-range
devices and repealing Decision 2005/928/EC".
[i.6] ETSI EN 300 330 (V2.1.1): "Short Range Devices (SRD); Radio equipment in the frequency range
9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz;
Harmonised Standard covering the essential requirements of article 3.2 of the Directive
2014/53/EU".
[i.7] CENELEC EN 50121-2:2015: "Railway applications - Electromagnetic compatibility - Part 2:
Emission of the whole railway system to the outside world". Applies in conjunction with
EN 50121-1 (09-2000).
[i.8] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.9] UNISIG SUBSET-116-1.1.0: "Eurobalise On-board Equipment, Susceptibility Test Specification",
June 2016.
NOTE: Available at http://www.era.europa.eu/Document-Register/Pages/Set-3-Eurobalise-On-board-equipment-
susceptibility-test-specification.aspx.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
dedicated antenna: removable antenna supplied and tested with the radio equipment, designed as an indispensable part
of the equipment
duty cycle: defined as the ratio, expressed as a percentage, of the maximum transmitter "on" time monitored over one
hour, relative to a one hour period
ETSI

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9 ETSI EN 302 608 V2.1.1 (2017-11)
Eurobalise: wayside transmission unit that uses the magnetic transponder technology
NOTE: Its main function is to transmit and/or receive signals through the air gap. The Eurobalise is a single
device mounted on the track, which communicates with a train passing over it.
integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipment
intersystem interference: interference from sources not under the control of the operator or manufacturer of the
equipment
intrasystem interference: interference from source that are part of the system and are under the control of the
manufacturer or the operator of the equipment
magnetic transponder technology: method that uses magnetic coupling in the air gap between a transmitter and a
receiver for conveying data and energy
NOTE: In the Eurobalise transmission system context, it considers systems using the 27,095 MHz for
Tele-powering and 4,234 MHz for Up-link transmission.
On-Board Equipment (OBE): part of the inductive communication system installed on the train
NOTE: The OBE consists of antenna unit(s) for the communication between the train and the Eurobalise.
tele-powering: signal transmitted by the OBE, which activates the Eurobalise upon passage
NOTE: The signal is normally an un-modulated RF carrier (CW).
up-link: transmission link from the Eurobalise to the OBE
3.2 Symbols
For the purposes of the present document, the following symbols apply:
f Frequency
S Power Density
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
CW Continuous Wave
FSK Frequency Shift Keying
HS Harmonised Standard
OBE On-Board Equipment
RF Radio Frequency
SRD Short Range Device
4 Technical Requirements Specifications
4.1 Environmental Profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be declared by the manufacturer. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the declared operational environmental profile.
ETSI

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10 ETSI EN 302 608 V2.1.1 (2017-11)
4.2 Transmitter Conformance Requirements
4.2.1 OBE TX Field Strength and Transmitter Mask
4.2.1.1 Applicability
This test only applies to the OBE. The radiated H-field mask is defined in the direction of maximum field strength
under specified conditions of measurement.
4.2.1.2 Limits
The limits of figure 1 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
+42 dBµA/m
+5 dBµA/m
f +200 kHz
f +5 kHz
f -200 kHz f -5 kHz o
o
o o
-1 dBµA/m
f = 27,095 MHz
o
 f +500 kHz
f -500 kHz
o
o

Figure 1: OBE transmitter mask
4.2.1.3 Conformance
The conformance test suite for OBE transmitter mask shall be as defined in clause 6.1.1 of the present document.
4.2.1.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.2 OBE Unwanted Emission
4.2.2.1 Applicability
This test only applies to the OBE. Unwanted emissions consist of out-of-band and spurious emissions outside the
frequency range 27,095 MHz ± 500 kHz as defined in clause 4.2.1.
4.2.2.2 Limits
The limits in table 2 (expressed in dBµA/m at a distance of 10 m for frequencies below 30 MHz and expressed in
dBµV/m at a distance of 10 m for frequencies equal or greater than 30 MHz) shall not be exceeded.
ETSI

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11 ETSI EN 302 608 V2.1.1 (2017-11)
Table 2: OBE unwanted emissions limits
Frequency: (f) Limit
44 dBµA/m at 9 kHz decreasing with logarithm of
9 kHz ≤ f < 150 kHz
frequency to 19 dBµA/m at 150 kHz
54 dBµA/m at 150 kHz decreasing with logarithm of
150 kHz ≤ f < 30 MHz
frequency to 4 dBµA/m at 30 MHz
79 dBµV/m at 30 MHz decreasing with logarithm of
30 MHz ≤ f ≤ 1 GHz
frequency to 54 dBµV/m at 1 GHz
NOTE: The values are based on the assumption that the system operates in
a rail environment installed below a rail vehicle. The values are
extracted from the EMC limits for rail equipment given in figure 1
(150 kHz to 1 GHz) and figure C.1 (below 150 kHz) of CENELEC
EN 50121-2:2015 [i.7]. The most stringent EMC limits (Category C)
decreased by 6 dB have been chosen for the limits in clause 4.2.2.2
table 2.

4.2.2.3 Conformance
The conformance test suite for OBE unwanted emission shall be as defined in clause 6.1.2 of the present document.
4.2.2.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.3 Eurobalise TX Field Strength and Transmitter Mask
4.2.3.1 Applicability
This test only applies to Eurobalises. The radiated H-field uplink mask is defined in the direction of maximum field
strength under specified conditions of measurement.
4.2.3.2 Limits
The limits of figure 2 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
17
7
-3
-13
-23
7
1 3 5 9
Frequency [MHz]


Figure 2: Eurobalise transmitter mask
The defined in-band frequency range is limited to the frequency range 4,234 MHz ± 1 MHz. The maximum value in the
graph of figure 2 is 9 dBµA/m.
ETSI
Field Strength [dBμA/m]

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12 ETSI EN 302 608 V2.1.1 (2017-11)
NOTE: ERC Recommendation 70-03 [i.2], annex 4 recommends a maximum duty cycle of 1 % for the Eurobalise
transmitter. This duty cycle cannot be exceeded during normal operation it is not foreseen that a train
stops above the Eurobalise, In principle, it is impossible to exceed the defined duty cycle with a moving
train due to the given safety distance between trains versus Eurobalise operating range.
4.2.3.3 Conformance
The conformance test suite for Eurobalise transmitter mask shall be as defined in clause 6.1.3 of the present document.
4.2.3.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.4 Eurobalise Unwanted Emission
4.2.4.1 Applicability
This test only applies to track site Eurobalise equipment. Unwanted emissions consist of out-of-band and spurious
emissions outside the frequency range 27,095 MHz ± 500 kHz as defined in clause 4.2.1, and outside the frequency
range 4,234 MHz ± 1 MHz as defined in clause 4.2.3.
4.2.4.2 Limits
The limits in table 3 (expressed in dBµA/m at a distance of 10 m for frequencies below 30 MHz and expressed in
dBµV/m at a distance of 10 m for frequencies equal or greater than 30 MHz) shall not be exceeded.
Table 3: Eurobalise unwanted emissions limits
Frequency: (f) Limit
44 dBµA/m at 9 kHz decreasing with logarithm of
...

Final draft ETSI EN 302 608 V2.1.1 (2017-09)






HARMONISED EUROPEAN STANDARD
Short Range Devices (SRD);
Radio equipment for Eurobalise railway systems;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU

---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 302 608 V2.1.1 (2017-09)



Reference
REN/ERM-TG28-520
Keywords
harmonised standard, radio, railways, SRD,
testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

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

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

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

© ETSI 2017.
All rights reserved.

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

---------------------- Page: 2 ----------------------
3 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical Requirements Specifications . 10
4.1 Environmental Profile . 10
4.2 Transmitter Conformance Requirements . 10
4.2.1 OBE TX Field Strength and Transmitter Mask . 10
4.2.1.1 Applicability. 10
4.2.1.2 Limits . 10
4.2.1.3 Conformance . 10
4.2.1.4 Maximum Allowable Measurement Uncertainty . 10
4.2.2 OBE Unwanted Emission . 10
4.2.2.1 Applicability. 10
4.2.2.2 Limits . 11
4.2.2.3 Conformance . 11
4.2.2.4 Maximum Allowable Measurement Uncertainty . 11
4.2.3 Eurobalise TX Field Strength and Transmitter Mask . 11
4.2.3.1 Applicability. 11
4.2.3.2 Limits . 12
4.2.3.3 Conformance . 12
4.2.3.4 Maximum Allowable Measurement Uncertainty . 12
4.2.4 Eurobalise Unwanted Emission . 12
4.2.4.1 Applicability. 12
4.2.4.2 Limits . 12
4.2.4.3 Conformance . 13
4.2.4.4 Maximum Allowable Measurement Uncertainty . 13
4.3 Receiver Conformance Requirements . 13
4.3.1 OBE Receiver Sensitivity . 13
4.3.1.1 Applicability. 13
4.3.1.2 Limits . 13
4.3.1.3 Conformance . 13
4.3.2 OBE Receiver Blocking . 13
4.3.2.1 Applicability. 13
4.3.2.2 Limits . 13
4.3.2.3 Conformance . 14
5 Testing for Compliance with Technical Requirements . 14
5.1 Environmental Conditions for Testing . 14
5.2 General Conditions for Testing . 14
5.2.1 Test Conditions . 14
5.2.2 Test Power Source . 14
5.2.3 Nominal Test Conditions . 15
5.2.3.1 Normal Temperature and Humidity . 15
5.2.3.2 Normal Test Power Source, Mains Voltage . 15
5.2.3.3 Normal Test Power Source, Other Power Sources . 15
ETSI

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4 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
5.2.4 Requirements for Test Modulation . 15
5.2.5 Choice of Equipment . 15
5.2.6 Measuring Receiver . 15
5.3 Interpretation of the Measurement Results . 16
6 Performance Test Suites . 16
6.1 Conformance Methods of Measurement for Transmitter . 16
6.1.1 OBE TX Field Strength and Transmitter Mask . 16
6.1.2 OBE Unwanted Emission . 17
6.1.3 Eurobalise Tx Field Strength and Transmitter Mask . 17
6.1.4 Eurobalise Unwanted Emission . 18
6.2 Conformance Methods of Measurement for Receiver . 18
6.2.1 OBE Receiver Sensitivity . 18
6.2.2 OBE Receiver Blocking . 18
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 19
Annex B (informative): Change history . 20
History . 21


ETSI

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5 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This final draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the
ETSI standards EN Approval Procedure.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.8] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

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

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6 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
Introduction
The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to
cover all radio and telecommunications terminal equipment within the scope of the Directive 2014/53/EU [i.1].
The Eurobalise transmission system is defined by the specifications [1] and [2] of the UNISIG consortium.

ETSI

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7 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
1 Scope
The present document specifies technical characteristics and methods of measurements for radio transmitters and
receivers used in the Eurobalise transmission system. The system is used in railway environment for the communication
between tracks and trains.
It applies to the following equipment units:
a) the On-Board Equipment (OBE) Tele-powering the Eurobalise; and
b) the Eurobalise that is always installed in between the rails.
The OBE comprises a transmitter (normally un-modulated) and a receiver fitted with an integral or dedicated antenna.
The Eurobalise FSK-modulated transmitter is Tele-powered by the OBE and has an integral antenna.
The Eurobalise transmission system operates in frequency bands listed in table 1 in accordance with the EC Decision
2013/752/EU [i.5] and ERC Recommendation 70-03 [i.2], annex 4.
These radio equipment types are capable of operating at the following frequencies as given in table 1.
Table 1: Radio communications frequencies
Radio communications frequencies
Note
OBE receive frequency band 2,5 MHz to 6 MHz (4,234 MHz centre
frequency)
Eurobalise transmit frequency band 4,234 MHz ± 1 MHz

NOTE: EC decision for SRDs [i.5] and ERC Rec 70-03 [i.2] are providing the usage conditions for Eurobalise
transmissions in frequency range 984 - 7 484 kHz (4,234 MHz centre frequency). The 27 MHz band is
only used in the OBE for telepowering the Eurobalise, which is not in the scope of the present document.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.1] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] UNISIG SUBSET-036-3.1.0: "FFFIS for Eurobalise", December 2015.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/SUBSET-036%20v310.pdf.
[2] UNISIG SUBSET-085-3.0.0: "Test Specification for Eurobalise FFFIS", February 2012.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/Set-2-Index043-SUBSET-
085%20v300.pdf.
ETSI

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8 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
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] CEPT/ERC/Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.3] ETSI TR 100 028 (V1.4.1) (12-2001) (all parts): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.4] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[i.5] EC Decision 2013/752/EU: "Commission Implementing DECISION of 11 December 2013
amending Decision 2006/771/EC on harmonisation of the radio spectrum for use by short-range
devices and repealing Decision 2005/928/EC".
[i.6] ETSI EN 300 330 (V2.1.1): "Short Range Devices (SRD); Radio equipment in the frequency range
9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz;
Harmonised Standard covering the essential requirements of article 3.2 of the Directive
2014/53/EU".
[i.7] CENELEC EN 50121-2:2015: "Railway applications - Electromagnetic compatibility - Part 2:
Emission of the whole railway system to the outside world". Applies in conjunction with
EN 50121-1 (09-2000).
[i.8] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
[i.9] UNISIG SUBSET-116-1.1.0: "Eurobalise On-board Equipment, Susceptibility Test Specification",
June 2016.
NOTE: Available at http://www.era.europa.eu/Document-Register/Pages/Set-3-Eurobalise-On-board-equipment-
susceptibility-test-specification.aspx.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
dedicated antenna: removable antenna supplied and tested with the radio equipment, designed as an indispensable part
of the equipment
duty cycle: defined as the ratio, expressed as a percentage, of the maximum transmitter "on" time monitored over one
hour, relative to a one hour period
ETSI

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9 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
Eurobalise: wayside transmission unit that uses the magnetic transponder technology
NOTE: Its main function is to transmit and/or receive signals through the air gap. The Eurobalise is a single
device mounted on the track, which communicates with a train passing over it.
integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipment
intersystem interference: interference from sources not under the control of the operator or manufacturer of the
equipment
intrasystem interference: interference from source that are part of the system and are under the control of the
manufacturer or the operator of the equipment
magnetic transponder technology: method that uses magnetic coupling in the air gap between a transmitter and a
receiver for conveying data and energy
NOTE: In the Eurobalise transmission system context, it considers systems using the 27,095 MHz for
Tele-powering and 4,234 MHz for Up-link transmission.
On-Board Equipment (OBE): part of the inductive communication system installed on the train
NOTE: The OBE consists of antenna unit(s) for the communication between the train and the Eurobalise.
tele-powering: signal transmitted by the OBE, which activates the Eurobalise upon passage
NOTE: The signal is normally an un-modulated RF carrier (CW).
up-link: transmission link from the Eurobalise to the OBE
3.2 Symbols
For the purposes of the present document, the following symbols apply:
f Frequency
S Power Density
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
CW Continuous Wave
FSK Frequency Shift Keying
HS Harmonised Standard
OBE On-Board Equipment
RF Radio Frequency
SRD Short Range Device
ETSI

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10 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
4 Technical Requirements Specifications
4.1 Environmental Profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be declared by the manufacturer. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the declared operational environmental profile.
4.2 Transmitter Conformance Requirements
4.2.1 OBE TX Field Strength and Transmitter Mask
4.2.1.1 Applicability
This test only applies to the OBE. The radiated H-field mask is defined in the direction of maximum field strength
under specified conditions of measurement.
4.2.1.2 Limits
The limits of figure 1 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
+42 dBµA/m
+5 dBµA/m
+200 kHz
f
-200 kHz -5 kHz f +5 kHz o
f f
o o o
-1 dBµA/m
f = 27,095 MHz
o
-500 kHz f +500 kHz
f
o
o

Figure 1: OBE transmitter mask
4.2.1.3 Conformance
The conformance test suite for OBE transmitter mask shall be as defined in clause 6.1.1 of the present document.
4.2.1.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.2 OBE Unwanted Emission
4.2.2.1 Applicability
This test only applies to the OBE. Unwanted emissions consist of out-of-band and spurious emissions outside the
frequency range 27,095 MHz ± 500 kHz as defined in clause 4.2.1.
ETSI

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11 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
4.2.2.2 Limits
The limits in table 2 (expressed in dBµA/m at a distance of 10 m for frequencies below 30 MHz and expressed in
dBµV/m at a distance of 10 m for frequencies equal or greater than 30 MHz) shall not be exceeded.
Table 2: OBE unwanted emissions limits
Frequency: (f) Limit
44 dBµA/m at 9 kHz decreasing with logarithm of
9 kHz ≤ f < 150 kHz
frequency to 19 dBµA/m at 150 kHz
54 dBµA/m at 150 kHz decreasing with logarithm of
150 kHz ≤ f < 30 MHz
frequency to 4 dBµA/m at 30 MHz
79 dBµV/m at 30 MHz decreasing with logarithm of
30 MHz ≤ f ≤ 1 GHz
frequency to 54 dBµV/m at 1 GHz
NOTE: The values are based on the assumption that the system operates in
a rail environment installed below a rail vehicle. The values are
extracted from the EMC limits for rail equipment given in figure 1
(150 kHz to 1 GHz) and figure C.1 (below 150 kHz) of CENELEC
EN 50121-2:2015 [i.7]. The most stringent EMC limits (Category C)
decreased by 6 dB have been chosen for the limits in clause 4.2.2.2
table 2.

4.2.2.3 Conformance
The conformance test suite for OBE unwanted emission shall be as defined in clause 6.1.2 of the present document.
4.2.2.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.3 Eurobalise TX Field Strength and Transmitter Mask
4.2.3.1 Applicability
This test only applies to Eurobalises. The radiated H-field uplink mask is defined in the direction of maximum field
strength under specified conditions of measurement.
ETSI

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12 Final draft ETSI EN 302 608 V2.1.1 (2017-09)
4.2.3.2 Limits
The limits of figure 2 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
17
7
-3
-13
-23
7
1 3 5 9
Frequency [MHz]


Figure 2: Eurobalise transmitter mask
The defined in-band frequency range is limited to the frequency range 4,234 MHz ± 1 MHz. The maximum value in the
graph of figure 2 is 9 dBµA/m.
NOTE: ERC Recommendation 70-03 [i.2], annex 4 recommends a maximum duty cycle of 1 % for the Eurobalise
transmitter. This duty cycle cannot be exceeded during normal operation it is not foreseen that a train
stops above the Eurobalise, In principle, it is impossible to exceed the defined duty cycle with a moving
train due to the given safety distance between trains versus Eurobalise operating range.
4.2.3.3 Conformance
The conformance test suite for Eurobalise transmitter mask shall be as defined in clause 6.1.3 of the present document.
4.2.3.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.4 Eurobalise Unwanted Emission
4.2.4.1 Applicability
This test only applies to track site Eurobalise equipment. Unwanted emissions consist of out-of-band and spurious
emissions outside the frequency range 27,095 MHz ± 500 kHz as defined in clause 4.2.1, and outside the frequency
range 4,234 MHz ± 1 MHz as defined in clause 4.2.3.
4.2.4.2 Limits
The limits in table 3 (expressed in dBµA/m at a distance of 10 m for frequencies below 30 MHz and expressed in
dBµV/m at a distance of 10
...

Draft ETSI EN 302 608 V2.1.0 (2016-12)






HARMONISED EUROPEAN STANDARD
Short Range Devices (SRD);
Radio equipment for Eurobalise railway systems;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 302 608 V2.1.0 (2016-12)



Reference
REN/ERM-TG28-520
Keywords
harmonised standard, radio, railways, SRD,
testing
ETSI
650 Route des Lucioles
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Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
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Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
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The content of the PDF version shall not be modified without the written authorization of ETSI.
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© European Telecommunications Standards Institute 2016.
All rights reserved.

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DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
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of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

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3 Draft ETSI EN 302 608 V2.1.0 (2016-12)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical Requirements Specifications . 9
4.1 Environmental Profile . 9
4.2 Transmitter Conformance Requirements . 9
4.2.1 OBE TX Field Strength and Transmitter Mask . 9
4.2.1.1 Applicability. 9
4.2.1.2 Limits . 9
4.2.1.3 Conformance . 9
4.2.1.4 Maximum Allowable Measurement Uncertainty . 9
4.2.2 OBE Unwanted Emission . 9
4.2.2.1 Applicability. 9
4.2.2.2 Limits . 10
4.2.2.3 Conformance . 10
4.2.2.4 Maximum Allowable Measurement Uncertainty . 10
4.2.3 Eurobalise TX Field Strength and Transmitter Mask . 10
4.2.3.1 Applicability. 10
4.2.3.2 Limits . 11
4.2.3.3 Conformance . 11
4.2.3.4 Maximum Allowable Measurement Uncertainty . 11
4.2.4 Eurobalise Unwanted Emission . 11
4.2.4.1 Applicability. 11
4.2.4.2 Limits . 11
4.2.4.3 Conformance . 12
4.2.4.4 Maximum Allowable Measurement Uncertainty . 12
4.3 Receiver Conformance Requirements . 12
4.3.1 OBE Receiver Sensitivity . 12
4.3.1.1 Applicability. 12
4.3.1.2 Limits . 12
4.3.1.3 Conformance . 12
4.3.2 OBE Receiver Blocking . 12
4.3.2.1 Applicability. 12
4.3.2.2 Limits . 12
4.3.2.3 Conformance . 13
4.3.3 Eurobalise Receiver Sensitivity . 13
4.3.3.1 Applicability. 13
4.3.3.2 Limits . 13
4.3.3.3 Conformance . 13
4.3.4 Eurobalise Receiver Interference Susceptibility . 13
4.3.4.1 Applicability. 13
4.3.4.2 Limits . 13
4.3.4.3 Conformance . 13
4.3.5 Further Receiver Interference Handling . 13
ETSI

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4 Draft ETSI EN 302 608 V2.1.0 (2016-12)
5 Testing for Compliance with Technical Requirements . 15
5.1 Environmental Conditions for Testing . 15
5.2 General Conditions for Testing . 15
5.2.1 Test Conditions . 15
5.2.2 Test Power Source . 15
5.2.3 Nominal Test Conditions . 15
5.2.3.1 Normal Temperature and Humidity . 15
5.2.3.2 Normal Test Power Source, Mains Voltage . 15
5.2.3.3 Normal Test Power Source, Other Power Sources . 16
5.2.4 Requirements for Test Modulation . 16
5.2.5 Choice of Equipment . 16
5.2.6 Measuring Receiver . 16
5.3 Interpretation of the Measurement Results . 16
6 Performance Test Suites . 17
6.1 Conformance Methods of Measurement for Transmitter . 17
6.1.1 OBE TX Field Strength and Transmitter Mask . 17
6.1.2 OBE Unwanted Emission . 17
6.1.3 Eurobalise Tx Field Strength and Transmitter Mask . 18
6.1.4 Eurobalise Unwanted Emission . 18
6.2 Conformance Methods of Measurement for Receiver . 19
6.2.1 OBE Receiver Sensitivity . 19
6.2.2 OBE Receiver Blocking . 19
6.2.3 Eurobalise Receiver Sensitivity . 19
6.2.4 Eurobalise Receiver Interference Susceptibility . 19
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 20
Annex B (informative): Change history . 21
History . 22


ETSI

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5 Draft ETSI EN 302 608 V2.1.0 (2016-12)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
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.8] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to
cover all radio and telecommunications terminal equipment within the scope of the Directive 2014/53/EU [i.1].
The Eurobalise transmission system is defined by the specifications [1] and [2] of the UNISIG consortium.
ETSI

---------------------- Page: 5 ----------------------
6 Draft ETSI EN 302 608 V2.1.0 (2016-12)
1 Scope
The present document specifies technical characteristics and methods of measurements for radio transmitters and
receivers used in the Eurobalise transmission system. The system is used in railway environment for the communication
between tracks and trains.
It applies to the following equipment units:
a) the On-Board Equipment (OBE) Tele-powering the Eurobalise; and
b) the Eurobalise that is always installed in between the rails.
The OBE comprises a transmitter (normally un-modulated) and a receiver fitted with an integral or dedicated antenna.
The Eurobalise FSK-modulated transmitter is Tele-powered by the OBE and has an integral antenna.
The Eurobalise transmission system operates in frequency bands listed in table 1 in accordance with the EC Decision
2013/752/EU [i.5] and ERC Recommendation 70-03 [i.2], annex 4.
These radio equipment types are capable of operating at the following frequencies as given in table 1.
Table 1: Radio communications frequencies
Radio communications frequencies
OBE receive frequency band 2,5 MHz - 6,0 MHz
OBE transmit frequency band 27,095 MHz ± 500 kHz
Eurobalise transmit frequency band 4,234 MHz ± 1 MHz

The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.1] under the
conditions identified in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] UNISIG SUBSET-036-3.1.0: "FFFIS for Eurobalise", December 2015.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/SUBSET-036%20v310.pdf.
[2] UNISIG SUBSET-085-3.0.0: "Test Specification for Eurobalise FFFIS", February 2012.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/Set-2-Index043-SUBSET-
085%20v300.pdf.
[3] UNISIG SUBSET-116-1.1.0: "Eurobalise On-board Equipment, Susceptibility Test Specification",
June 2016.
NOTE: Available at http://www.era.europa.eu/Document-Register/Documents/Set-2-Index043-SUBSET-
085%20v300.pdf.
ETSI

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7 Draft ETSI EN 302 608 V2.1.0 (2016-12)
[4] CENELEC EN 50121-4:2015: "Railway applications - Electromagnetic compatibility - Part 4:
Emission and immunity of the signalling and telecommunications apparatus".
[5] IEC EN 61000-4-3:2006: "Electromagnetic compatibility (EMC) - Part 4-3: Testing and
measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test".
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, (OJ L153, 22.5.2014, p62).
[i.2] CEPT/ERC/Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.3] ETSI TR 100 028 (V1.4.1) (12-2001) (all parts): "Electromagnetic compatibility and Radio
spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment
characteristics".
[i.4] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[i.5] EC Decision 2013/752/EU: "Commission Implementing IMPLEMENTING DECISION of
11 December 2013 amending Decision 2006/771/EC on harmonisation of the radio spectrum for
use by short-range devices and repealing Decision 2005/928/EC".
[i.6] ETSI EN 300 330 (V2.1.1): "Short Range Devices (SRD); Radio equipment in the frequency range
9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz;
Harmonised Standard covering the essential requirements of article 3.2 of the Directive
2014/53/EU".
[i.7] CENELEC EN 50121-2:2015: "Railway applications - Electromagnetic compatibility - Part 2:
Emission of the whole railway system to the outside world". Applies in conjunction with
EN 50121-1 (09-2000).
[i.8] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
dedicated antenna: removable antenna supplied and tested with the radio equipment, designed as an indispensable part
of the equipment
duty cycle: defined as the ratio, expressed as a percentage, of the maximum transmitter "on" time monitored over one
hour, relative to a one hour period
ETSI

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8 Draft ETSI EN 302 608 V2.1.0 (2016-12)
Eurobalise: wayside transmission unit that uses the magnetic transponder technology
NOTE: Its main function is to transmit and/or receive signals through the air gap. The Eurobalise is a single
device mounted on the track, which communicates with a train passing over it.
integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipment
intersystem interference: interference from sources not under the control of the operator or manufacturer of the
equipment
intrasystem interference: interference from source that are part of the system and are under the control of the
manufacturer or the operator of the equipment
magnetic transponder technology: method that uses magnetic coupling in the air gap between a transmitter and a
receiver for conveying data and energy
NOTE: In the Eurobalise transmission system context, it considers systems using the 27,095 MHz for
Tele-powering and 4,234 MHz for Up-link transmission.
On-Board Equipment (OBE): part of the inductive communication system installed on the train
NOTE: The OBE consists of antenna unit(s) for the communication between the train and the Eurobalise.
tele-powering: signal transmitted by the OBE, which activates the Eurobalise upon passage
NOTE: The signal is normally an un-modulated RF carrier (CW).
up-link: transmission link from the Eurobalise to the OBE
3.2 Symbols
For the purposes of the present document, the following symbols apply:
f Frequency
S Power Density
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
CW Continuous Wave
FSK Frequency Shift Keying
HS Harmonised Standard
OBE On-Board Equipment
RF Radio Frequency
SRD Short Range Device
ETSI

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9 Draft ETSI EN 302 608 V2.1.0 (2016-12)
4 Technical Requirements Specifications
4.1 Environmental Profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be declared by the manufacturer. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the declared operational environmental profile.
4.2 Transmitter Conformance Requirements
4.2.1 OBE TX Field Strength and Transmitter Mask
4.2.1.1 Applicability
This test only applies to the OBE. The radiated H-field mask is defined in the direction of maximum field strength
under specified conditions of measurement.
4.2.1.2 Limits
The limits of figure 1 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
+42 dBµA/m
+5 dBµA/m
f +200 kHz
f +5 kHz o
f -200 kHz f -5 kHz
o o o
-1 dBµA/m
f = 27.095 MHz
o
f +500 kHz
f -500 kHz
o
o

Figure 1: OBE transmitter mask
4.2.1.3 Conformance
The conformance test suite for OBE transmitter mask shall be as defined in clause 6.1.1 of the present document.
4.2.1.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.2 OBE Unwanted Emission
4.2.2.1 Applicability
This test only applies to the OBE. Unwanted emissions consist of out-of-band and spurious emissions outside the
frequency range 27,095 MHz ± 500 kHz as defined in clause 4.2.1.3.
ETSI

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10 Draft ETSI EN 302 608 V2.1.0 (2016-12)
4.2.2.2 Limits
The limits in table 2 (expressed in dBµA/m at a distance of 10 m for frequencies below 30 MHz and expressed in
dBµV/m at a distance of 10 m for frequencies equal or greater than 30 MHz) shall not be exceeded.
Table 2: OBE unwanted emissions limits
Frequency: (f) Limit
44 dBµA/m at 9 kHz decreasing with logarithm of
9 kHz ≤ f < 150 kHz
frequency to 19 dBµA/m at 150 kHz
54 dBµA/m at 150 kHz decreasing with logarithm of
150 kHz ≤ f < 30 MHz
frequency to 4 dBµA/m at 30 MHz
79 dBµV/m at 30 MHz decreasing with logarithm of
30 MHz ≤ f ≤ 1 GHz
frequency to 54 dBµV/m at 1 GHz
NOTE: The values are based on the assumption that the system operates in
a rail environment installed below a rail vehicle. The values are
extracted from the EMC limits for rail equipment given in figure 1
(150 kHz to 1 GHz) and figure C.1 (below 150 kHz) of CENELEC
EN 50121-2:2015 [i.7]. The most stringent EMC limits (Category C)
decreased by 6 dB have been chosen for the limits in clause 4.2.2.2
table 2.

4.2.2.3 Conformance
The conformance test suite for OBE unwanted emission shall be as defined in clause 6.1.2 of the present document.
4.2.2.4 Maximum Allowable Measurement Uncertainty
The maximum allowable measurement uncertainty shall be as given in table 6 in clause 5.3.
4.2.3 Eurobalise TX Field Strength and Transmitter Mask
4.2.3.1 Applicability
This test only applies to Eurobalises. The radiated H-field uplink mask is defined in the direction of maximum field
strength under specified conditions of measurement.
ETSI

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11 Draft ETSI EN 302 608 V2.1.0 (2016-12)
4.2.3.2 Limits
The limits of figure 2 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
17
7
-3
-13
-23
7
1 3 5 9
Frequency [MHz]


Figure 2: Eurobalise transmitter mask
The defined in-band frequency range is limited to the frequency range 4,234 MHz ± 1 MHz. The maximum value in the
graph of figure 2 is 9 dBµA/m.
NOTE: ERC Recommendation 70-03 [i.
...