ETSI EN 302 609 V2.1.1 (2016-12)

ETSI EN 302 609 V2.1.1 (2016-12)






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

---------------------- Page: 1 ----------------------
2 ETSI EN 302 609 V2.1.1 (2016-12)



Reference
REN/ERM-TG28-508
Keywords
harmonised standard, radio, 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.

© European Telecommunications Standards Institute 2016.
All rights reserved.

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

---------------------- Page: 2 ----------------------
3 ETSI EN 302 609 V2.1.1 (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 . 6
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical requirements specifications . 8
4.1 Environmental profile . 8
4.2 Transmitter conformance requirements . 8
4.2.1 OBE TX field strength and Transmitter mask . 8
4.2.1.1 Applicability. 8
4.2.1.2 Limits . 8
4.2.1.3 Conformance . 9
4.2.1.4 Maximum Allowable Measurement Uncertainty . 9
4.2.2 OBE unwanted emissions . 9
4.2.2.1 Applicability. 9
4.2.2.2 Limits . 9
4.2.2.3 Conformance . 9
4.2.2.4 Maximum Allowable Measurement Uncertainty . 10
4.2.3 Euroloop transmitter field strength . 10
4.2.3.1 Applicability. 10
4.2.3.2 Limits . 10
4.2.3.3 Conformance . 10
4.2.4 Euroloop transmitter mask . 10
4.2.4.1 Applicability. 10
4.2.4.2 Limit . 10
4.2.4.3 Conformance . 11
4.3 Receiver Conformance requirements . 11
4.3.1 OBE Receiver sensitivity . 11
4.3.1.1 Applicability. 11
4.3.1.2 Limits . 11
4.3.1.3 Conformance . 11
4.3.2 OBE Receiver co-channel rejection . 11
4.3.2.1 Applicability. 11
4.3.2.2 Limits . 11
4.3.2.3 Conformance . 11
4.3.3 OBE Receiver blocking . 11
4.3.3.1 Applicability. 11
4.3.3.2 Limits . 11
4.3.3.3 Conformance . 11
4.3.4 OBE Receiver radio-frequency intermodulation . 11
4.3.4.1 Applicability. 11
4.3.4.2 Limits . 12
4.3.4.3 Conformance . 12
4.3.5 Euroloop Receiver sensitivity . 12
4.3.5.1 Applicability. 12
4.3.5.2 Limits . 12
4.3.5.3 Conformance . 12
ETSI

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4 ETSI EN 302 609 V2.1.1 (2016-12)
5 Testing for compliance with technical requirements . 12
5.1 Environmental conditions for testing . 12
5.2 General conditions for testing . 12
5.2.1 Test conditions . 12
5.2.2 Test power source . 12
5.2.3 Normal test conditions . 13
5.2.3.1 Normal temperature and humidity . 13
5.2.3.2 Normal test power source . 13
5.2.3.2.1 Mains voltage . 13
5.2.3.2.2 Other power sources . 13
5.2.4 Choice of equipment for test suites . 13
5.2.4.1 Choice of model . 13
5.2.4.2 Measuring receiver . 13
5.3 Interpretation of the measurement results . 14
6 Performance Test Suites . 14
6.1 Conformance methods of measurement for transmitters . 14
6.1.1 OBE Tx field strength and Transmitter Mask . 14
6.1.2 OBE Unwanted Emission . 15
6.1.3 Euroloop field strength measurements . 15
6.1.4 Euroloop transmitter conducted measurements . 16
6.2 Conformance Methods of Measurement for Receiver . 16
6.2.1 OBE receiver sensitivity . 16
6.2.2 OBE Receiver co-channel rejection . 16
6.2.3 OBE Receiver blocking . 16
6.2.4 OBE Receiver radio-frequency intermodulation . 16
6.2.5 Euroloop receiver sensitivity . 17
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 18
Annex B (normative): Field strength measurements along the Euroloop . 19
Annex C (informative): Change History . 20
History . 21


ETSI

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5 ETSI EN 302 609 V2.1.1 (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 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: 12 December 2016
Date of latest announcement of this EN (doa): 31 March 2017
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2017
Date of withdrawal of any conflicting National Standard (dow): 30 September 2018

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 Euroloop communication system is defined by the specifications [1] and [2] of the UNISIG consortia.

ETSI

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6 ETSI EN 302 609 V2.1.1 (2016-12)
1 Scope
The present document covers the technical requirements for radio transmitters and receivers used in the Euroloop
transmission system. The system is used in railway systems.
The present document applies to the following equipment:
1) The On-Board Equipment (OBE) receiving the Euroloop signal and the OBE comprises a receiver fitted with a
dedicated antenna.
2) The Track-Side Equipment (Euroloop) transmitting the Euroloop signal that is always installed in an inner or
outer foot of a rail.
The Euroloop transmission system operates in frequency bands listed in table 1 in accordance with the EC Decision
2013/752/EU [i.2], and ERC Recommendation 70-03 [i.3], annex 4.
These radio equipment types are capable of operating at the following frequencies as given below in table 1.
Table 1: Radio communications frequencies
Radio communications frequencies
OBE receive frequency band 11,1 -16,0 MHz
OBE transmit frequency band 27,09 - 27,10 MHz
Euroloop receiver frequency band 27,09 - 27,10 MHz
Euroloop transmit frequency band 11,1 -16,0 MHz
Euroloop transmit modulation BPSK, DSSS chip rate 4,516 MHz

The present document contains requirements to demonstrate that radio equipment both effectively uses and supports the
efficient use of radio spectrum in order to avoid harmful interference.
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
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
th
[1] ERTMS/ETCS: "FFFIS for Euroloop", SUBSET-044, Issue 2.4.0, 29 February 2012.
th
[2] ERTMS/ETCS: "Test Specification for Euroloop", SUBSET-103, Issue 1.1.0, 29 February 2012.
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.
ETSI

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7 ETSI EN 302 609 V2.1.1 (2016-12)
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] 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.3] CEPT/ERC/Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.4] ETSI TR 100 028-1 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 1".
[i.5] ETSI TR 100 028-2 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 2".
[i.6] ETSI EN 300 330-1 (V1.7.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
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; Part 1: Technical characteristics
and test methods".
[i.7] CENELEC EN 50121-2 (2015-03): "Railway applications - Electromagnetic compatibility -
Part 2: Emission of the whole railway system to the outside world" / Applies in conjunction with
EN 50121-1 (2000-09)".
[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
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.
euroloop: wayside transmission unit that uses the magnetic transmission technology
NOTE: Its main function is to transmit signals through the air gap. The Euroloop is a single device mounted on
the track, which communicates with a train passing over it.
magnetic transmission technology: method that uses magnetic coupling in the air gap between a transmitter and a
receiver
NOTE: In the Euroloop transmission system context, it considers systems using the band 11,1 - 16,0 MHz for
Uplink (track to train) transmission.
rf carrier: fixed radio frequency prior to modulation
uplink: transmission link from the Euroloop to the OBE
ETSI

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8 ETSI EN 302 609 V2.1.1 (2016-12)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
f Frequency
Ω Ohm
R Distance
Chip rate
RC
λ wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BPSK Binary Phase Shift Keying
CW Continous Wave
dB deciBel (logarithmic scale)
DSSS Direct Sequence Spread Spectrum
ERC European Radiocommunications Committee
LOOMO LOOp MOdem
OBE On-Board Equipment
RF Radio Frequency
RMS Root Mean Square
SRD Short Range Device
TX Transmitter
UNISIG UNion Industry of SIGnalling
VSWR Voltage Standing Wave Ratio
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 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.
NOTE: Eurobalise-OBE tele-powering is used for wake-up of the Euroloop.
4.2.1.2 Limits
The limits of figure 1 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
ETSI

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9 ETSI EN 302 609 V2.1.1 (2016-12)
+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
See table 5 in clause 5.3.
4.2.2 OBE unwanted emissions
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 4.2.1.2.
NOTE: Eurobalise-OBE tele-powering is used for wake-up of the Euroloop.
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.
ETSI

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10 ETSI EN 302 609 V2.1.1 (2016-12)
4.2.2.4 Maximum Allowable Measurement Uncertainty
See table 5 in clause 5.3.
4.2.3 Euroloop transmitter field strength
4.2.3.1 Applicability
This only applies to the Euroloop transmitter.
4.2.3.2 Limits
The transmitted magnetic field strength shall not exceed -7 dBµA/m at 10 m distance within the frequency range of
11,1 MHz to 16,0 MHz measured in a bandwidth of 10 kHz spatially averaged over any 200 m length of the loop.
4.2.3.3 Conformance
The conformance test suite for the Euroloop transmitter field strength shall be as defined in clause 6.1.4 of the present
document.
4.2.4 Euroloop transmitter mask
4.2.4.1 Applicability
This test only applies to the Euroloop transmitter consisting of out-of-band and spurious emissions outside the
frequency range 11,1 MHz to 16,0 MHz as defined in clause 4.2.3.2.
4.2.4.2 Limit
The measured spectrum (field strength) shall not exceed the relative frequency mask values of figure 2.
10
11,1MHz 16,0MHz
0dBc 0dBc
0
10
7,3MHz
20
-23dBc 23MHz
-23dBc
30MHz
30
-35dBc 1000MHz
1,0MHz -40dBc
-37dBc
40
3
.
1 10 100 1 10
Frequency, MHz

Figure 2: Euroloop transmitter spectrum and spurious mask
The limit at 1 MHz shall also apply for frequencies below 1 MHz.
ETSI
Relative Magnitude, dBc

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11 ETSI EN 302 609 V2.1.1 (2016-12)
4.2.4.3 Conformance
The conformance test suite for Euroloop transmitter mask shall be as defined in clause 6.1.3 of the present document.
4.3 Receiver Conformance requirements
4.3.1 OBE Receiver sensitivity
4.3.1.1 Applicability
This on
...

Final draft ETSI EN 302 609 V2.1.1 (2016-10)






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

---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 302 609 V2.1.1 (2016-10)



Reference
REN/ERM-TG28-508
Keywords
harmonised standard, radio, 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.

© European Telecommunications Standards Institute 2016.
All rights reserved.

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

---------------------- Page: 2 ----------------------
3 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
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 . 6
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Technical requirements specifications . 8
4.1 Environmental profile . 8
4.2 Transmitter conformance requirements . 8
4.2.1 OBE TX field strength and Transmitter mask . 8
4.2.1.1 Applicability. 8
4.2.1.2 Limits . 8
4.2.1.3 Conformance . 9
4.2.1.4 Maximum Allowable Measurement Uncertainty . 9
4.2.2 OBE unwanted emissions . 9
4.2.2.1 Applicability. 9
4.2.2.2 Limits . 9
4.2.2.3 Conformance . 10
4.2.2.4 Maximum Allowable Measurement Uncertainty . 10
4.2.3 Euroloop transmitter field strength . 10
4.2.3.1 Applicability. 10
4.2.3.2 Limits . 10
4.2.3.3 Conformance . 10
4.2.4 Euroloop transmitter mask . 10
4.2.4.1 Applicability. 10
4.2.4.2 Limit . 10
4.2.4.3 Conformance . 11
4.3 Receiver Conformance requirements . 11
4.3.1 OBE Receiver sensitivity . 11
4.3.1.1 Applicability. 11
4.3.1.2 Limits . 11
4.3.1.3 Conformance . 11
4.3.2 OBE Receiver co-channel rejection . 11
4.3.2.1 Applicability. 11
4.3.2.2 Limits . 11
4.3.2.3 Conformance . 11
4.3.3 OBE Receiver blocking . 11
4.3.3.1 Applicability. 11
4.3.3.2 Limits . 11
4.3.2.3 Conformance . 11
4.3.4 OBE Receiver radio-frequency intermodulation . 12
4.3.4.1 Applicability. 12
4.3.4.2 Limits . 12
4.3.4.3 Conformance . 12
4.3.5 Euroloop Receiver sensitivity . 12
4.3.5.1 Applicability. 12
4.3.5.2 Limits . 12
4.3.5.3 Conformance . 12
ETSI

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4 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
5 Testing for compliance with technical requirements . 12
5.1 Environmental conditions for testing . 12
5.2 General conditions for testing . 12
5.2.1 Test conditions . 12
5.2.2 Test power source . 13
5.2.3 Normal test conditions . 13
5.2.3.1 Normal temperature and humidity . 13
5.2.3.2 Normal test power source . 13
5.2.3.2.1 Mains voltage . 13
5.2.3.2.2 Other power sources . 13
5.2.4 Choice of equipment for test suites . 13
5.2.4.1 Choice of model . 13
5.2.4.2 Measuring receiver . 14
5.3 Interpretation of the measurement results . 14
6 Performance Test Suites . 15
6.1 Conformance methods of measurement for transmitters . 15
6.1.1 OBE Tx field strength and Transmitter Mask . 15
6.1.2 OBE Unwanted Emission . 15
6.1.3 Euroloop field strength measurements . 16
6.1.4 Euroloop transmitter conducted measurements . 16
6.2 Conformance Methods of Measurement for Receiver . 16
6.2.1 OBE receiver sensitivity . 16
6.2.2 OBE Receiver co-channel rejection . 17
6.2.3 OBE Receiver blocking . 17
6.2.4 OBE Receiver radio-frequency intermodulation . 17
6.2.5 Euroloop receiver sensitivity . 17
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 18
Annex B (normative): Field strength measurements along the Euroloop . 19
Annex C (informative): Change History . 20
History . 21


ETSI

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5 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
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 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.
Introduction
The Euroloop communication system is defined by the specifications [1] and [2] of the UNISIG consortia.

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6 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
1 Scope
The present document covers the technical requirements for radio transmitters and receivers used in the Euroloop
transmission system. The system is used in railway systems.
The present document applies to the following equipment:
1) The On-Board Equipment (OBE) receiving the Euroloop signal and the OBE comprises a receiver fitted with a
dedicated antenna.
2) The Track-Side Equipment (Euroloop) transmitting the Euroloop signal that is always installed in an inner or
outer foot of a rail.
The Euroloop transmission system operates in frequency bands listed in table 1 in accordance with the EC Decision
2013/752/EU [i.2], and ERC Recommendation 70-03 [i.3], annex 4.
These radio equipment types are capable of operating at the following frequencies as given below in table 1.
Table 1: Radio communications frequencies
Radio communications frequencies
OBE receive frequency band 11,1 -16,0 MHz
OBE transmit frequency band 27,09 - 27,10 MHz
Euroloop receiver frequency band 27,09 - 27,10 MHz
Euroloop transmit frequency band 11,1 -16,0 MHz
Euroloop transmit modulation BPSK, DSSS chip rate 4,516 MHz

The present document contains requirements to demonstrate that radio equipment both effectively uses and supports the
efficient use of radio spectrum in order to avoid harmful interference.
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
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
th
[1] ERTMS/ETCS: "FFFIS for Euroloop", SUBSET-044, Issue 2.4.0, 29 February 2012.
th
[2] ERTMS/ETCS: "Test Specification for Euroloop", SUBSET-103, Issue 1.1.0, 29 February 2012.
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.
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7 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
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] 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.3] CEPT/ERC/Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.4] ETSI TR 100 028-1 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 1".
[i.5] ETSI TR 100 028-2 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 2".
[i.6] ETSI EN 300 330 (V1.7.1): "Electromagnetic compatibility and Radio spectrum Matters
(ERM);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; Part 1: Technical
characteristics and test methods".
[i.7] CENELEC EN 50121-2 (2015-03): "Railway applications - Electromagnetic compatibility -
Part 2: Emission of the whole railway system to the outside world" / Applies in conjunction with
EN 50121-1 (2000-09)".
[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
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.
euroloop: wayside transmission unit that uses the magnetic transmission technology
NOTE: Its main function is to transmit signals through the air gap. The Euroloop is a single device mounted on
the track, which communicates with a train passing over it.
magnetic transmission technology: method that uses magnetic coupling in the air gap between a transmitter and a
receiver
NOTE: In the Euroloop transmission system context, it considers systems using the band 11,1 - 16,0 MHz for
Uplink (track to train) transmission.
rf carrier: fixed radio frequency prior to modulation
uplink: transmission link from the Euroloop to the OBE
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8 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
f Frequency
Ω Ohm
R Distance
Chip rate
RC
λ wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BPSK Binary Phase Shift Keying
CW Continous Wave
dB deciBel (logarithmic scale)
DSSS Direct Sequence Spread Spectrum
ERC European Radiocommunications Committee
LOOMO LOOp MOdem
OBE On-Board Equipment
RF Radio Frequency
RMS Root Mean Square
SRD Short Range Device
TX Transmitter
UNISIG UNion Industry of SIGnalling
VSWR Voltage Standing Wave Ratio
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 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.
NOTE: Eurobalise-OBE tele-powering is used for wake-up of the Euroloop.
4.2.1.2 Limits
The limits of figure 1 (expressed in dBµA/m at a distance of 10 m) shall not be exceeded.
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9 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
+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
See table 5 in clause 5.3.
4.2.2 OBE unwanted emissions
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 4.2.1.2.
NOTE: Eurobalise-OBE tele-powering is used for wake-up of the Euroloop.
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.

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10 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
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
See table 5 in clause 5.3.
4.2.3 Euroloop transmitter field strength
4.2.3.1 Applicability
This only applies to the Euroloop transmitter.
4.2.3.2 Limits
The transmitted magnetic field strength shall not exceed -7 dBµA/m at 10 m distance within the frequency range of
11,1 MHz to 16,0 MHz measured in a bandwidth of 10 kHz spatially averaged over any 200 m length of the loop.
4.2.3.3 Conformance
The conformance test suite for the Euroloop transmitter field strength shall be as defined in clause 6.1.4 of the present
document.
4.2.4 Euroloop transmitter mask
4.2.4.1 Applicability
This test only applies to the Euroloop transmitter consisting of out-of-band and spurious emissions outside the
frequency range 11,1 MHz to 16,0 MHz as defined in clause 4.2.3.2.
4.2.4.2 Limit
The measured spectrum (field strength) shall not exceed the relative frequency mask values of figure 2.
10
11,1MHz 16,0MHz
0dBc 0dBc
0
10
7,3MHz
20
-23dBc 23MHz
-23dBc
30MHz
30
-35dBc 1000MHz
1,0MHz -40dBc
-37dBc
40
3
.
1 10 100 1 10
Frequency, MHz

Figure 2: Euroloop transmitter spectrum and spurious mask
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11 Final draft ETSI EN 302 609 V2.1.1 (2016-10)
The limit at 1 MHz shall also apply for frequencies below 1 MHz.
4.2.4.3 Conformance
The conformance
...