SIST EN 303 454 V1.1.1:2018

ETSI EN 303 454 V1.1.1 (2018-01)






HARMONISED EUROPEAN STANDARD
Short Range Devices (SRD);
Metal and object detection sensors
in the frequency range 1 kHz to 148,5 kHz;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU

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2 ETSI EN 303 454 V1.1.1 (2018-01)



Reference
DEN/ERM-TG28-542
Keywords
harmonised standard, inductive, measurement,
SRD

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

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

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

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

© ETSI 2018.
All rights reserved.

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

---------------------- Page: 2 ----------------------
3 ETSI EN 303 454 V1.1.1 (2018-01)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical requirements specifications . 9
4.1 Environmental conditions . 9
4.2 General . 10
4.2.1 Wanted performance criteria. 10
4.2.2 Operational Modes . 10
4.2.3 Presentation of equipment for testing purposes . 10
4.3 Transmitter conformance requirements . 11
4.3.1 Operating Frequency Range (OFR) . 11
4.3.1.1 Applicability. 11
4.3.1.2 Description . 11
4.3.1.3 Limits . 11
4.3.1.4 Conformance . 12
4.3.2 Transmitter H-field requirements . 12
4.3.2.1 Applicability. 12
4.3.2.2 Description . 12
4.3.2.3 Limits . 12
4.3.2.4 Conformance . 13
4.3.3 Transmitter E-field requirements . 13
4.3.3.1 Applicability. 13
4.3.3.2 Description . 13
4.3.3.3 Limits . 13
4.3.3.4 Conformance . 13
4.3.4 Transmitter spurious emis sions . 13
4.3.4.1 Applicability. 13
4.3.4.2 Description . 13
4.3.4.3 Limits . 15
4.3.4.4 Conformance . 15
4.3.5 Transmitter out of band (OOB) emissions . 15
4.3.5.1 Applicability. 15
4.3.5.2 Description . 15
4.3.5.3 Limits . 15
4.3.5.4 Conformance . 15
4.4 Receiver Conformance requirements . 16
4.4.1 Introduction. 16
4.4.2 Receiver spurious emissions . 16
4.4.2.1 Applicability. 16
4.4.2.2 Description . 16
4.4.2.3 Limits . 16
4.4.2.4 Conformance . 16
4.4.3 Receiver blocking . 16
4.4.3.1 Applicability. 16
4.4.3.2 Description . 16
ETSI

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4 ETSI EN 303 454 V1.1.1 (2018-01)
4.4.3.3 Limits . 17
4.4.3.4 Conformance . 17
5 Testing for compliance with technical requirements . 17
5.1 Environmental conditions for testing . 17
5.2 General conditions for testing . 18
5.2.1 Product information . 18
5.3 Normal and extreme test conditions . 18
5.4 Test sites and general arrangements for radiated measurements . 18
5.5 Measuring receiver . 18
5.6 Measurement uncertainty . 18
5.7 Interpretation of the measurement results . 18
6 Conformance methods of measurement for transmitters and receivers . 19
6.1 General . 19
6.2 Transmitter conformance methods . 20
6.2.1 OFR . 20
6.2.2 H-field . 20
6.2.3 Transmitter unwanted emissions . 21
6.2.4 Transmitter radiated E-field . 21
6.3 Receiver conformance methods . 21
6.3.1 Receiver spurious emissions . 21
6.3.2 Receiver blocking . 21
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 24
Annex B (informative): Guidance for testing receiver blocking . 25
B.1 Introduction . 25
B.2 H-field pattern . 25
B.3 EUT and target positioning . 26
B.4 Chamber considerations . 27
B.5 Supporting structures . 27
B.6 Field verification . 27
Annex C (informative): Change history . 29
History . 30


ETSI

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5 ETSI EN 303 454 V1.1.1 (2018-01)
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.6] 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.3].
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: 18 December 2017
Date of latest announcement of this EN (doa): 31 March 2018
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2018
Date of withdrawal of any conflicting National Standard (dow): 30 September 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 303 454 V1.1.1 (2018-01)
Introduction
The present document covers metal and object detection sensors in the frequency range 1 kHz to 148,5 kHz.
The present document is structured as follows:
• Clauses 1 through 3 provide a general description on the types of equipment covered by the present document
and the definitions, symbols and abbreviations used.
• Clause 4 provides the technical requirements specifications, limits and conformance relative to transmitter and
receiver.
• Clause 5 specifies the conditions for testing of the equipment and interpretation of the measurement results
with the maximum measurement uncertainty values.
• Clause 6 specifies the required measurement methods.
• Annex A (informative) provides the relationship between the present document and the essential requirements
of Directive 2014/53/EU [i.3].

ETSI

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7 ETSI EN 303 454 V1.1.1 (2018-01)
1 Scope
The present document specifies technical characteristics and methods of measurements for metal and object detection
sensors in the frequency range 1 kHz to 148,5 kHz.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.3] under the
conditions identified in annex A.
2
The size for the inductive loops covered by the present document is limited to 3 m .
The present document does not cover other devices using the frequency range below 148,5 kHz, e.g. ETSI
EN 303 348 [i.7] (Inductive loop for hearing impaired in 0 kHz to 20 kHz), ETSI EN 303 447 [i.8] (Inductive robotic
mowers).
These radio equipment types are capable of operating in all or part of the frequency bands given in table 1.
Table 1: Permitted range of operation
Permitted range of operation
Transmit 1 kHz to 148,5 kHz
Receive 1 kHz to 148,5 kHz

NOTE: It should be noted that the frequency range between 9 kHz and 148,5 kHz is EU wide harmonised for
inductive Short Range Devices according to Decision 2017/1483 [i.2].
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 330 (V2.1.1) (02-2017): "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
Directive 2014/53/EU".
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] CEPT/ERC Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
ETSI

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8 ETSI EN 303 454 V1.1.1 (2018-01)
[i.2] Commission Implementing Decision (EU) 2017/1483 of 8 August 2017 amending
Decision 2006/771/EC on harmonisation of the radio spectrum for use by short-range devices and
repealing Decision 2006/804.
[i.3] 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.4] CEPT/ERC/REC 74-01: "Unwanted emissions in the spurious domain".
[i.5] ETSI EG 203 336: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Guide for
the selection of technical parameters for the production of Harmonised Standards covering
article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.6] 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.7] ETSI EN 303 348: "Induction loop systems intended to assist the hearing impaired in the
frequency range 10 Hz to 9 kHz; Harmonised Standard covering the essential requirements of
article 3.2 of Directive 2014/53/EU".
[i.8] ETSI EN 303 447: "Short Range Devices (SRD); Inductive loop systems for robotic mowers in the
frequency range 0 Hz to 148,5 kHz; Harmonised Standard covering the essential requirements of
article 3.2 of Directive 2014/53/EU".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI EN 300 330 [1] and the following
apply:
99 % OBW function: measurement function of a spectrum analyser
detection: means the indication of any type of objects as declared by the manufacturer
object detector: capacitive and inductive devices which detect the presence of an object within the nearfield
Occupied BandWidth (OBW): width of a frequency band such that, below the lower and above the upper frequency
limits, the mean powers emitted are each equal to 0,5 % of the total mean power of a given emission
NOTE: See figure 1.
ETSI

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9 ETSI EN 303 454 V1.1.1 (2018-01)

Figure 1: Occupied bandwidth (OBW)
3.2 Symbols
For the purposes of the present document, the symbols given in ETSI EN 300 330 [1] and the following apply:
D distance between EUT and the target during measurement
f centre frequency of the OFR
C
f highest frequency of the OFR
H
f lowest frequency of the OFR
L
f frequency for the spurious emissions test (below f )
sl C
f frequency for the spurious emission test (above f )
sh C
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI EN 300 330 [1] and the following apply:
OBW Occupied Bandwidth
OFR Operating Frequency Range
OOB Out of Band
RBW Resolution Bandwidth
4 Technical requirements specifications
4.1 Environmental conditions
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. The conditions shall be used as descripted in
clause 5.3.
ETSI

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10 ETSI EN 303 454 V1.1.1 (2018-01)
4.2 General
4.2.1 Wanted performance criteria
A metal and object detector is used to determine the presence of obscured objects made of conductive, magnetic, and/or
dielectric materials such as non-ferrous metals, ferrous metals or wood. The objects are part of an environment, i.e. they
are e.g. buried in the ground or embedded in building structures such as walls, floors, and ceilings.
The detection performance of the metal and object detector is measured in terms of the ability to detect objects from a
specific set of objects in a specific set of environments up to a given maximum detection depth.
The manufacturer shall declare the specific set of objects, the specific set of environments, and the maximum detection
depth for each of the relevant measurement modes.
The indications of objects by the EUT in the absence of objects are called false-positive indications.
For the purpose of the receiver performance tests, the EUT shall produce an appropriate output under normal conditions
as indicated below:
• the objects in the specific set of objects, in the specific set of environments, up to the maximum detection
depth/distance are indicated and no false-positive indications are observed; or
• a degradation of the detection performance is indicated by the EUT as described in the manual.
The possibilities for the indication of the degradation of the detection performance include in particular:
• indication by a dedicated means (e.g. specific light signal, specific tone signal, specific display content);
• indirect indication: the indicated detection result changes in short time intervals under otherwise stationary
conditions.
4.2.2 Operational Modes
Metal and object detectors might have several operational modes:
• multiple measurement modes (one or several sensors switched on);
• non-measurement mode (sensors switched off).
The manufacturer shall declare the set of operational modes that are representative for the equipment.
The conformance measurements shall be performed in the representative set of operational modes.
Measurement modes might be specific but not limited to materials (e.g. metal, wooden studs), object properties
(e.g. shape, diameter, depth), environments (e.g. concrete walls, dry walls), use case scenarios (e.g. finding, avoiding,
tracing), sensitivities (e.g. high sensitivity, medium sensitivity, low sensitivity) or combinations thereof (e.g. universal
mode).
The working principles of the sensors in the various modes might include continuous transmission (either stand-alone or
in parallel) and intermittent transmission (either alternating or in parallel). The receivers of the sensors might be either
switched on continuously or intermittent. In particular, receivers might at times be switched on while the respective
transmitter is switched off (receiver only operation).
4.2.3 Presentation of equipment for testing purposes
Each EUT submitted for testing shall fulfil the requirements of the present document.
The manufacturer shall declare the range of operating conditions and power requirements as applicable, to
...

Final draft ETSI EN 303 454 V1.1.1 (2017-10)






HARMONISED EUROPEAN STANDARD
Short Range Devices (SRD);
Metal and object detection sensors
in the frequency range 1 kHz to 148,5 kHz;
Harmonised Standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU

---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 303 454 V1.1.1 (2017-10)



Reference
DEN/ERM-TG28-542
Keywords
harmonised standard, inductive, measurement,
SRD

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

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3 Final draft ETSI EN 303 454 V1.1.1 (2017-10)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical requirements specifications . 9
4.1 Environmental conditions . 9
4.2 General . 10
4.2.1 Wanted performance criteria. 10
4.2.2 Operational Modes . 10
4.2.3 Presentation of equipment for testing purposes . 10
4.3 Transmitter conformance requirements . 11
4.3.1 Operating Frequency Range (OFR) . 11
4.3.1.1 Applicability. 11
4.3.1.2 Description . 11
4.3.1.3 Limits . 11
4.3.1.4 Conformance . 12
4.3.2 Transmitter H-field requirements . 12
4.3.2.1 Applicability. 12
4.3.2.2 Description . 12
4.3.2.3 Limits . 12
4.3.2.4 Conformance . 13
4.3.3 Transmitter E-field requirements . 13
4.3.3.1 Applicability. 13
4.3.3.2 Description . 13
4.3.3.3 Limits . 13
4.3.3.4 Conformance . 13
4.3.4 Transmitter spurious emis sions . 13
4.3.4.1 Applicability. 13
4.3.4.2 Description . 13
4.3.4.3 Limits . 15
4.3.4.4 Conformance . 15
4.3.5 Transmitter out of band (OOB) emissions . 15
4.3.5.1 Applicability. 15
4.3.5.2 Description . 15
4.3.5.3 Limits . 15
4.3.5.4 Conformance . 15
4.4 Receiver Conformance requirements . 16
4.4.1 Introduction. 16
4.4.2 Receiver spurious emissions . 16
4.4.2.1 Applicability. 16
4.4.2.2 Description . 16
4.4.2.3 Limits . 16
4.4.2.4 Conformance . 16
4.4.3 Receiver blocking . 16
4.4.3.1 Applicability. 16
4.4.3.2 Description . 16
ETSI

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4 Final draft ETSI EN 303 454 V1.1.1 (2017-10)
4.4.3.3 Limits . 17
4.4.3.4 Conformance . 17
5 Testing for compliance with technical requirements . 17
5.1 Environmental conditions for testing . 17
5.2 General conditions for testing . 18
5.2.1 Product information . 18
5.3 Normal and extreme test conditions . 18
5.4 Test sites and general arrangements for radiated measurements . 18
5.5 Measuring receiver . 18
5.6 Measurement uncertainty . 18
5.7 Interpretation of the measurement results . 18
6 Conformance methods of measurement for transmitters and receivers . 19
6.1 General . 19
6.2 Transmitter conformance methods . 20
6.2.1 OFR . 20
6.2.2 H-field . 20
6.2.3 Transmitter unwanted emissions . 21
6.2.4 Transmitter radiated E-field . 21
6.3 Receiver conformance methods . 21
6.3.1 Receiver spurious emissions . 21
6.3.2 Receiver blocking . 21
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 24
Annex B (informative): Guidance for testing receiver blocking . 25
B.1 Introduction . 25
B.2 H-field pattern . 25
B.3 EUT and target positioning . 26
B.4 Chamber considerations . 27
B.5 Supporting structures . 27
B.6 Field verification . 27
Annex C (informative): Change history . 29
History . 30


ETSI

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5 Final draft ETSI EN 303 454 V1.1.1 (2017-10)
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.6] 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.3].
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 303 454 V1.1.1 (2017-10)
Introduction
The present document covers metal and object detection sensors in the frequency range 1 kHz to 148,5 kHz.
The present document is structured as follows:
• Clauses 1 through 3 provide a general description on the types of equipment covered by the present document
and the definitions, symbols and abbreviations used.
• Clause 4 provides the technical requirements specifications, limits and conformance relative to transmitter and
receiver.
• Clauses 5 specifies the conditions for testing of the equipment and interpretation of the measurement results
with the maximum measurement uncertainty values.
• Clause 6 specifies the required measurement methods.
• Annex A (informative) provides the relationship between the present document and the essential requirements
of Directive 2014/53/EU [i.3].

ETSI

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7 Final draft ETSI EN 303 454 V1.1.1 (2017-10)
1 Scope
The present document specifies technical characteristics and methods of measurements for metal and object detection
sensors in the frequency range 1 kHz to 148,5 kHz.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.3] under the
conditions identified in annex A.
2
The size for the inductive loops covered by the present document is limited to 3 m .
The present document does not cover other devices using the frequency range below 148,5 kHz, e.g. ETSI
EN 303 348 [i.7] (Inductive loop for hearing impaired in 0 kHz to 20 kHz), ETSI EN 303 447 [i.8] (Inductive robotic
mowers).
These radio equipment types are capable of operating in all or part of the frequency bands given in table 1.
Table 1: Permitted range of operation
Permitted range of operation
Transmit 1 kHz to 148,5 kHz
Receive 1 kHz to 148,5 kHz

NOTE: It should be noted that the frequency range between 9 kHz and 148,5 kHz is EU wide harmonised for
inductive Short Range Devices according to Decision 2017/1483 [i.2].
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 330 (V2.1.1) (02-2017): "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
Directive 2014/53/EU".
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] CEPT/ERC Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
ETSI

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8 Final draft ETSI EN 303 454 V1.1.1 (2017-10)
[i.2] Commission Implementing Decision (EU) 2017/1483 of 8 August 2017 amending
Decision 2006/771/EC on harmonisation of the radio spectrum for use by short-range devices and
repealing Decision 2006/804.
[i.3] 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.4] CEPT/ERC/REC 74-01: "Unwanted emissions in the spurious domain".
[i.5] ETSI EG 203 336: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Guide for
the selection of technical parameters for the production of Harmonised Standards covering
article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.6] 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.7] ETSI EN 303 348: "Induction loop systems intended to assist the hearing impaired in the
frequency range 10 Hz to 9 kHz; Harmonised Standard covering the essential requirements of
article 3.2 of Directive 2014/53/EU".
[i.8] ETSI EN 303 447: "Short Range Devices (SRD); Inductive loop systems for robotic mowers in the
frequency range 0 Hz to 148,5 kHz; Harmonised Standard covering the essential requirements of
article 3.2 of Directive 2014/53/EU".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI EN 300 330 [1] and the following
apply:
99 % OBW function: measurement function of a spectrum analyser
detection: means the indication of any type of objects as declared by the manufacturer
object detector: capacitive and inductive devices which detect the presence of an object within the nearfield
Occupied BandWidth (OBW): width of a frequency band such that, below the lower and above the upper frequency
limits, the mean powers emitted are each equal to 0,5 % of the total mean power of a given emission
NOTE: See figure 1.
ETSI

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9 Final draft ETSI EN 303 454 V1.1.1 (2017-10)

Figure 1: Occupied bandwidth (OBW)
3.2 Symbols
For the purposes of the present document, the symbols given in ETSI EN 300 330 [1] and the following apply:
D distance between EUT and the target during measurement
f centre frequency of the OFR
C
f highest frequency of the OFR
H
f lowest frequency of the OFR
L
f frequency for the spurious emissions test (below f )
sl C
f frequency for the spurious emission test (above f )
sh C
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI EN 300 330 [1] and the following apply:
OBW Occupied Bandwidth
OFR Operating Frequency Range
OOB Out of Band
RBW Resolution Bandwidth
4 Technical requirements specifications
4.1 Environmental conditions
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. The conditions shall be used as descripted in
clause 5.3.
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10 Final draft ETSI EN 303 454 V1.1.1 (2017-10)
4.2 General
4.2.1 Wanted performance criteria
A metal and object detector is used to determine the presence of obscured objects made of conductive, magnetic, and/or
dielectric materials such as non-ferrous metals, ferrous metals or wood. The objects are part of an environment, i.e. they
are e.g. buried in the ground or embedded in building structures such as walls, floors, and ceilings.
The detection performance of the metal and object detector is measured in terms of the ability to detect objects from a
specific set of objects in a specific set of environments up to a given maximum detection depth.
The manufacturer shall declare the specific set of objects, the specific set of environments, and the maximum detection
depth for each of the relevant measurement modes.
The indications of objects by the EUT in the absence of objects are called false-positive indications.
For the purpose of the receiver performance tests, the EUT shall produce an appropriate output under normal conditions
as indicated below:
• the objects in the specific set of objects, in the specific set of environments, up to the maximum detection
depth/distance are indicated and no false-positive indications are observed; or
• a degradation of the detection performance is indicated by the EUT as described in the manual.
The possibilities for the indication of the degradation of the detection performance include in particular:
• indication by a dedicated means (e.g. specific light signal, specific tone signal, specific display content);
• indirect indication: the indicated detection result changes in short time intervals under otherwise stationary
conditions.
4.2.2 Operational Modes
Metal and object detectors might have several operational modes:
• multiple measurement modes (one or several sensors switched on);
• non-measurement mode (sensors switched off).
The manufacturer shall declare the set of operational modes that are representative for the equipment.
The conformance measurements shall be performed in the representative set of operational modes.
Measurement modes might be specific but not limited to materials (e.g. metal, wooden studs), object properties
(e.g. shape, diameter, depth), environments (e.g. concrete walls, dry walls), use case scenarios (e.g. finding, avoiding,
tracing), sensitivities (e.g. high sensitivity, medium sensitivity, low sensitivity) or combinations thereof (e.g. universal
mode).
The working principles of the sensors in the various modes might include continuous transmission (either stand-alone or
in parallel) and intermittent transmission (either alternating or in parallel). The receivers of the sensors might be either
switched on continuously or intermittent. In particular, receivers might at times be switched on while the respective
transmitter is switched off (receiver only operation).
4.2.3 Presentation of equipment for testing purposes
Ea
...

Draft ETSI EN 303 454 V1.1.0 (2017-03)






HARMONISED EUROPEAN STANDARD
Short Range Devices (SRD);
Metal and object detection sensors
in the frequency range 1 kHz to 148,5 kHz;
Harmonised standard covering the essential requirements
of article 3.2 of Directive 2014/53/EU

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2 Draft ETSI EN 303 454 V1.1.0 (2017-03)



Reference
DEN/ERM-TG28-542
Keywords
harmonised standard, inductive, measurement,
SRD

ETSI
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GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

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3 Draft ETSI EN 303 454 V1.1.0 (2017-03)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Technical requirements specifications . 9
4.1 Environmental conditions . 9
4.2 General . 10
4.2.1 Wanted performance criteria. 10
4.2.2 Operational Modes . 10
4.2.3 Presentation of equipment for testing purposes . 10
4.3 Transmitter conformance requirements . 11
4.3.1 Operating Frequency Range (OFR) . 11
4.3.1.1 Applicability. 11
4.3.1.2 Description . 11
4.3.1.3 Limits . 11
4.3.1.4 Conformance . 12
4.3.2 Transmitter H-field requirements . 12
4.3.2.1 Applicability. 12
4.3.2.2 Description . 12
4.3.2.3 Limits . 12
4.3.2.4 Conformance . 13
4.3.3 Transmitter E-field requirements . 13
4.3.3.1 Applicability. 13
4.3.3.2 Description . 13
4.3.3.3 Limits . 13
4.3.3.4 Conformance . 13
4.3.4 Transmitter spurious emis sions . 13
4.3.4.1 Applicability. 13
4.3.4.2 Description . 14
4.3.4.3 Limits . 15
4.3.4.4 Conformance . 15
4.3.5 Transmitter out of band (OOB) emissions . 15
4.3.5.1 Applicability. 15
4.3.5.2 Description . 15
4.3.5.3 Limits . 15
4.3.5.4 Conformance . 16
4.4 Receiver Conformance requirements . 16
4.4.1 Introduction. 16
4.4.2 Receiver spurious emissions . 16
4.4.3 Receiver blocking . 16
4.4.3.1 Applicability. 16
4.4.3.2 Description . 16
4.4.3.3 Limits . 16
4.4.3.4 Conformance . 17
5 Testing for compliance with technical requirements . 17
ETSI

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4 Draft ETSI EN 303 454 V1.1.0 (2017-03)
5.1 Environmental conditions for testing . 17
5.2 General conditions for testing . 17
5.2.1 Product information . 17
5.3 Normal and extreme test conditions . 17
5.4 Test sites and general arrangements for radiated measurements . 17
5.5 Measuring receiver . 18
5.6 Measurement uncertainty . 18
5.7 Interpretation of the measurement results . 18
6 Conformance methods of measurement for transmitters and receivers . 18
6.1 General . 18
6.2 Transmitter conformance methods . 19
6.2.1 OFR . 19
6.2.2 H-field . 20
6.2.3 Transmitter unwanted emissions . 20
6.2.4 Transmitter radiated E-field . 20
6.3 Receiver conformance methods . 20
6.3.1 Receiver spurious emissions . 20
6.3.2 Receiver blocking . 21
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 23
Annex B (informative): Change history . 24
History . 25


ETSI

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5 Draft ETSI EN 303 454 V1.1.0 (2017-03)
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.6] 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.3].
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 covers metal and object detection sensors in the frequency range 1 kHz to 148,5 kHz
The present document is structured as follows:
• Clauses 1 through 3 provide a general description on the types of equipment covered by the present document
and the definitions, symbols and abbreviations used.
• Clause 4 provides the technical requirements specifications, limits and conformance relative to transmitter and
receiver.
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6 Draft ETSI EN 303 454 V1.1.0 (2017-03)
• Clauses 5 specifies the conditions for testing of the equipment and interpretation of the measurement results
with the maximum measurement uncertainty values.
• Clause 6 specifies the required measurement methods.
• Annex A (informative) provides the relationship between the present document and the essential requirements
of Directive 2014/53/EU [i.3].

ETSI

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7 Draft ETSI EN 303 454 V1.1.0 (2017-03)
1 Scope
The present document specifies technical characteristics and methods of measurements for metal and object detection
sensors (including e.g. inductive proximity sensors, inductive cable detectors) in the frequency range 1 kHz to
148,5 kHz.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.3] under the
conditions identified in annex A.
2
The size for the inductive loops covered by the present document is limited to 3 m .
The present document does not cover other devices using the frequency range below 148,5 kHz, e.g. ETSI
EN 303 348 [i.7] (Inductive loop for hearing impaired in 0 kHz to 20 kHz), ETSI EN 303 447 [i.8] (Inductive robotic
mowers).
These radio equipment types are capable of operating in all or part of the frequency bands given in table 1.
Table 1: Permitted range of operation
Permitted range of operation
Transmit 1 kHz to 148,5 kHz
Receive 1 kHz to 148,5 kHz

NOTE: It should be noted that the frequency range between 9 kHz and 148,5 kHz is EU wide harmonised for
inductive Short Range Devices according to Directive 2013/752/EU [i.2].
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 330 (V2.1.1) (11-2016): "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".
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] CEPT/ERC Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
ETSI

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8 Draft ETSI EN 303 454 V1.1.0 (2017-03)
[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] 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.4] CEPT/ERC/REC 74-01: "Unwanted emissions in the spurious domain".
[i.5] ETSI EG 203 336: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Guide for
the selection of technical parameters for the production of Harmonised Standards covering
article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.6] 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.7] ETSI EN 303 348: "Induction loop systems intended to assist the hearing impaired in the
frequency range 10 Hz to 9 kHz; Harmonised Standard covering the essential requirements of
article 3.2 of Directive 2014/53/EU".
[i.8] ETSI EN 303 447: "Short Range Devices (SRD); Inductive loop systems for robotic mowers in the
frequency range 0 Hz to 148,5 kHz; Harmonised standard covering the essential requirements of
article 3.2 of Directive for 2014/53/EU".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI EN 300 330 [1] and the following
apply:
99% OBW function: measurement function of a spectrum analyser
object detector: capacitive and inductive sensor which detects the presence of an object. Such detector partly also
named as proximity sensor or proximity switch
Occupied BandWidth (OBW): width of a frequency band such that, below the lower and above the upper frequency
limits, the mean powers emitted are each equal to 0,5 % of the total mean power of a given emission
NOTE: See figure 1.
ETSI

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9 Draft ETSI EN 303 454 V1.1.0 (2017-03)

Figure 1: Occupied bandwidth (OBW)
3.2 Symbols
For the purposes of the present document, the symbols given in ETSI EN 300 330 [1] and the following apply:
f centre frequency of the OFR
c
f highest frequency of the OFR
H
f lowest frequency of the OFR
L
f frequency for the spurious emissions test (below f )
sl c
f frequency for the spurious emission test (above f )
sh c
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI EN 300 330 [1] and the following apply:
OBW Occupied Bandwidth
OFR Operating Frequency Range
RR Radio Regulations
4 Technical requirements specifications
4.1 Environmental conditions
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. The conditions shall be used as descripted in
clause 5.3.
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10 Draft ETSI EN 303 454 V1.1.0 (2017-03)
4.2 General
4.2.1 Wanted performance criteria
A metal and object detector is used to determine the presence of obscured objects made of conductive, magnetic, and/or
dielectric materials such as non-ferrous metals, ferrous metals or wood. The objects are part of an environment, i.e. they
are e.g. buried in the ground or embedded in building structures such as walls, floors, and ceilings.
The detection performance of the metal and object detector is measured in terms of the ability to detect objects from a
specific set of objects in a specific set of environments up to a given maximum detection depth.
The manufacturer shall declare the specific set of objects, the specific set of environments, and the maximum detection
depth for each of the relevant measurement modes.
Detection means the indication of any type of objects irrespective of its actual nature or consistency. I.e. that any
classification of the object type by the EUT might be wrong as long as the EUT indicates the presence of an object.
The indications of objects by the EUT in the absence of objects are called false-positive indications.
For the purpose of the receiver performance tests, the EUT shall produce an appropriate output under normal conditions
as indicated below:
• the objects in the specific set of objects, in the specific set of environments, up to the maximum detection are
indicated and no false-positive indications are observed; or
• a degradation of the detection performance is indicated by the EUT as described in the manual.
The possibilities for the indication of the degradation of the detection performance include in particular:
• indication by a dedicated mean (e.g. specific light signal, specific tone signal, specific display content);
• indirect indication: the indicated detection result changes in short time intervals under otherwise stationary
conditions.
4.2.2 Operational Modes
Metal and object detectors might have several operational modes:
• multiple measurement modes (one or several sensors switched on);
• non-measurement mode (sensors switched off).
The manufacturer shall declare the set of operational modes that are representative for the equipment.
The conformance measurements shall be performed in the representative set of operational modes.
Measurement modes might be specific but not limited to materials (e.g. metal, wooden studs), object properties
(e.g. shape, diameter, depth), environments (e.g. concrete walls, dry walls), use case scenarios (e.g. finding, avoiding,
tracing), sensitivities (e.g. high sensitivity, medium sensitivity, low sensitivity) or combinations thereof (e.g. universal
mode).
The working principles of the sensors in the various modes might include continuous transmission (either stand-alone or
in parallel) and intermittent transmission (either alternating or in parallel). The receivers of the sensors might be either
switched on continuously or intermittent. In particular, receivers might at times be switched on while the respective
transmitter is switched off (receiver only operation).
4.2.3 Presentation of equipment for testing purposes
Each EUT submitted for testing shall fulfil the requirements of the present document.
The manufacturer shall declare the range of operating conditions and power requirements as applicable, to establish the
appropriate test conditions.
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11 Draft ETSI EN 303 454 V1.1.0 (2017-03)
Additionally, technical documentation and operating manuals, sufficient to make the test, shall be supplied.
Measurements shall be performed for all operational modes from clause 4.2.2 on samples of equipment defined in
clause 4.2.2 of ETSI EN 300 330 [1].
4.3 Transmitter conformance requirements
4.3.1 Operating Frequency Range (OFR)
4.3.1.1 Applicability
This requirement applies to all EUT.
4.3.1.2 Description
The operating frequency range is the frequency range over which the EUT is intentionally transmitting. The operating
frequency range of the EUT is determined by the lowest (f ) and highest frequency (f ) as occupied by the power
L H
envelope.
The EUT could have more than one operating frequency range.
For a single frequency systems the OFR is equal to the occupied bandwidth (OBW) of the EUT.
For multi-frequency systems the OFR is described in figure 2.

Figure 2: OFR of a multi - frequency system
4.3.1.3 Limits
The operating frequency range shall be within the following limits:
• Upper edge of the operating frequency range: f ≤ 148,5 kHz.
H
• Lower edge of the operating frequency range: f ≥ 1 kHz.
L
For the later unwanted emission measurement procedure in clause 4.3.3.3 the OFR shall be calculated as: f - f and the
H L

centre frequency as: = .

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12 Draft ETSI EN 303 454 V1.1.0 (2017-03)
4.3.1.4 Conformance
The conformance test suite for operational frequency range is provided in clause 6.1 and clause 6.2.1.
Conformance shall be established under test conditions to be declared by the manufacturer according to clause 4.1.
The interpretation of the results for the measurements uncertai
...