ETSI EN 300 718-1 V2.1.1 (2018-01)

ETSI EN 300 718-1 V2.1.1 (2018-01)






HARMONISED EUROPEAN STANDARD
Avalanche Beacons operating at 457 kHz;
Transmitter-receiver systems;
Part 1: Harmonised Standard for access to radio spectrum

---------------------- Page: 1 ----------------------
2 ETSI EN 300 718-1 V2.1.1 (2018-01)



Reference
REN/ERM-TG28-512-1
Keywords
harmonised standard, radio, testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

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

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

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

© ETSI 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 300 718-1 V2.1.1 (2018-01)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 8
3.3 Abbreviations . 9
4 Technical requirements specifications . 9
4.1 Environmental profile . 9
4.2 Conformance requirements for transmitters . 9
4.2.1 Modulation and carrier keying . 9
4.2.1.1 Definition . 9
4.2.1.2 Method of measurement . 9
4.2.1.3 Limits . 9
4.2.2 Frequency error . 10
4.2.2.1 Definition . 10
4.2.2.2 Method of measurement . 10
4.2.2.3 Limits . 10
4.2.3 Output field strength (H-field) . 10
4.2.3.1 Definition . 10
4.2.3.2 Method of measurement . 10
4.2.3.3 Limits . 10
4.2.3.3.1 Minimum transmitted field . 10
4.2.3.3.2 Maximum transmitted field . 10
4.2.4 Transmitter spurious emis sions . 11
4.2.4.1 Definition . 11
4.2.4.2 Radiated H-field . 11
4.2.4.2.1 Method of measurement (< 30 MHz) . 11
4.2.4.2.2 Limits . 11
4.2.4.3 Effective radiated power . 11
4.2.4.3.1 Method of measurement ( ≥ 30 MHz) . 11
4.2.4.3.2 Limits . 12
4.3 Conformance requirements for receivers parameters . 12
4.3.1 Receiver sensitivity . 12
4.3.1.1 Definition . 12
4.3.1.2 Method of measurement . 12
4.3.1.3 Limits . 13
4.3.2 Receiver spurious emissions . 13
4.3.2.1 Definition . 13
4.3.2.2 Radiated H-field . 13
4.3.2.2.1 Method of measurement (< 30 MHz) . 13
4.3.2.2.2 Limits . 13
4.3.2.3 Effective radiated power . 13
4.3.2.3.1 Method of measurement ( ≥ 30 MHz) . 13
4.3.2.3.2 Limits . 14
4.3.3 Receiver blocking . 14
5 Test conditions, power sources and ambient temperatures . 15
5.1 Normal and extreme test conditions . 15
5.2 External test power source. 15
5.3 Normal test conditions . 15
ETSI

---------------------- Page: 3 ----------------------
4 ETSI EN 300 718-1 V2.1.1 (2018-01)
5.3.1 Normal temperature and humidity . 15
5.3.2 Normal test voltage . 15
5.4 Extreme test conditions . 15
5.4.1 Extreme temperatures . 15
5.4.2 Extreme test voltages . 16
5.4.2.1 General requirement . 16
5.4.2.2 Procedure for tests at extreme temperatures . 16
5.5 Measurement uncertainty . 16
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 17
Annex B (normative): Test sites and general arrangements for measurements involving the
use of radiated fields . 18
B.1 General . 18
B.1.1 Normal test signals . 18
B.1.2 Test fixture . 18
B.1.3 Measuring receiver . 18
B.2 Outdoor test site . 19
B.2.1 General requirements . 19
B.2.2 Standard position . 19
B.3 Test antenna . 20
B.3.1 Below 30 MHz . 20
B.3.2 Above 30 MHz . 20
B.4 Substitution antenna . 20
B.4.1 General . 20
B.4.2 Optional additional indoor site . 21
B.5 Guidance on the use of radiation test sites . 22
B.5.1 General . 22
B.5.2 Measuring distance . 22
B.5.3 Test antenna . 22
B.5.4 Substitution antenna . 22
B.5.5 Artificial antenna . 22
B.5.6 Auxiliary cables . 22
B.6 Further optional alternative indoor test site using an anechoic chamber . 23
B.6.1 General . 23
B.6.2 Example of the construction of a shielded anechoic chamber . 23
B.6.3 Influence of parasitic reflections in anechoic chambers . 23
B.6.4 Calibration of the shielded RF anechoic chamber . 24
Annex C (normative): Spurious limits, radiated H-field at 10 m distances . 26
Annex D (informative): E-fields in the near field at low frequencies . 27
Annex E (informative): Change history . 30
History . 31


ETSI

---------------------- Page: 4 ----------------------
5 ETSI EN 300 718-1 V2.1.1 (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.2] 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.
The present document is part 1 of a multi-part deliverable covering avalanche beacons operating at 457 kHz transmitter-
receiver systems, as identified below:
Part 1: "Harmonised Standard for access to radio spectrum";
Part 2: "Harmonised Standard for features for emergency services".

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

ETSI

---------------------- Page: 5 ----------------------
6 ETSI EN 300 718-1 V2.1.1 (2018-01)
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI

---------------------- Page: 6 ----------------------
7 ETSI EN 300 718-1 V2.1.1 (2018-01)
1 Scope
The present document specifies technical characteristics and methods of measurements for avalanche beacons operating
at 457 kHz transmitter-receiver systems.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.1] is given in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] CISPR 16-1-1 (2015): "Specification for radio disturbance and immunity measuring apparatus and
methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus".
[2] CISPR 16-1-4 (2010): "Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas
and test sites for radiated disturbance measurements".
[3] CISPR 16-1-5 (2014): "Specification for radio disturbance and immunity measuring apparatus and
methods; Part 1-5: Radio disturbance and immunity measuring apparatus - Antenna calibration
sites and reference test sites for 5 MHz to 18 GHz".
[4] ETSI EN 300 718-2 (V2.1.1) (01-2018): "Avalanche Beacons operating at 457 kHz; Transmitter-
receiver systems; Part 2: Harmonised Standard for features for emergency services".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] 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.3] ITU Radio Regulations (2012), Appendix 1 (REV.WRC-12): "Classification of emissions and
necessary bandwidths".
ETSI

---------------------- Page: 7 ----------------------
8 ETSI EN 300 718-1 V2.1.1 (2018-01)
[i.4] ETSI TR 100 028 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
avalanche beacons: portable radio systems used for locating avalanche victims, for the purpose of direct rescue
NOTE: I.e. for rescue by comrades not buried by the avalanche.
artificial antenna: tuned reduced-radiating dummy load equal to the nominal impedance specified by the manufacturer
conducted measurements: measurements which are made using a direct connection to the equipment under test
E-field: electric component of the field measured as voltage per unit length
environmental profile: range of environmental conditions under which equipment within the scope of the present
document is required to comply with the provisions of the present document
H-field: magnetic component of the field measured as current per unit length
H-field test antenna: electrically screened loop or equivalent antenna, with which the magnetic component of the field
can be measured
integral antenna: antenna designed as an indispensable part of the equipment, with or without the use of an antenna
connector
radiated measurements: measurements which involve the absolute measurement of a radiated field
(S + N)/N: ratio, expressed in Decibels, between the sum of the wanted signal plus the noise floor and the noise floor
3.2 Symbols
For the purposes of the present document, the following abbreviations apply:
A1A Class of emission
NOTE: See ITU Radio Regulations [i.3].
E Electrical field strength
Eo Reference electrical field strength
NOTE: See annex B.
f Frequency
H Magnetic field strength
Ho Reference magnetic field strength
NOTE: See annex B.
N Newton
P Power
R Distance
Ro Reference distance
NOTE: See annex B.
t Time
Z Wave impedance
ETSI

---------------------- Page: 8 ----------------------
9 ETSI EN 300 718-1 V2.1.1 (2018-01)
l Wavelength
NOTE: See annex B.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
RF Radio Frequency
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be declared by the manufacturer. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the declared operational environmental profile.
4.2 Conformance requirements for transmitters
4.2.1 Modulation and carrier keying
4.2.1.1 Definition
The modulation is the method for generating the RF carrier. The carrier keying defines the on and off times for a
non-continuous carrier.
4.2.1.2 Method of measurement
The carrier keying shall be measured by means of an oscilloscope connected to a suitable coil antenna. The
measurements shall be done under normal as well as under extreme test conditions.
4.2.1.3 Limits
The modulation shall be of type A1A, i.e. double sideband amplitude modulation with no modulating auxiliary carrier,
as used for telegraphy.
The carrier keying shall be as shown in figure 1:
• on time: 70 ms minimum;
• off time: 400 ms minimum;
• period: 1 000 ms ± 300 ms (on time plus off time).
ETSI

---------------------- Page: 9 ----------------------
10 ETSI EN 300 718-1 V2.1.1 (2018-01)

1 000 ± 300 ms
status
≥ 70 ms
≥ 400 ms
on
time
off

Figure 1
4.2.2 Frequency error
4.2.2.1 Definition
The frequency error of the transmitter system is the difference between the measured carrier frequency and the nominal
carrier frequency.
4.2.2.2 Method of measurement
The carrier frequency shall be measured by means of a test fixture (see annex B, clause B.1.2). The measurements shall
be done under normal as well as under extreme test conditions as defined in clause 5.
4.2.2.3 Limits
The frequency error shall not exceed ±80 Hz at 457 kHz.
4.2.3 Output field strength (H-field)
4.2.3.1 Definition
The H-field is measured in the direction of maximum field strength under specified conditions of measurement.
4.2.3.2 Method of measurement
The H-field produced by the equipment shall be measured on the axis of the transmitting antenna at distances of 10 m
on an outdoor test site (see annex B).
4.2.3.3 Limits
4.2.3.3.1 Minimum transmitted field
The minimum transmitted field strength at 457 kHz shall not be lower than -6 dBμA/m (0,5 μA/m) at a distance of
10 m.
4.2.3.3.2 Maximum transmitted field
The maximum transmitted field strength at 457 kHz shall not exceed 7 dBμA/m (2,23 μA/m) at a distance of 10 m.
ETSI

---------------------- Page: 10 ----------------------
11 ETSI EN 300 718-1 V2.1.1 (2018-01)
4.2.4 Transmitter spurious emissions
4.2.4.1 Definition
Spurious emissions are emissions at frequencies other than those of the carrier and sidebands associated with normal
modulation. The level of spurious emissions shall be measured at normal conditions as their effective radiated power or
field strength radiated by the cabinet and the integral antenna.
4.2.4.2 Radiated H-field
4.2.4.2.1 Method of measurement (< 30 MHz)
The field strength shall be measured for frequencies below 30 MHz. The equipment under test shall be measured at a
distance of 10 m on an outdoor test site. The test antenna shall be a calibrated shielded magnetic field antenna. The
equipment under test and test antenna shall be arranged as stated in annex B, clause B.2.
The equipment under test shall be swi
...

Draft ETSI EN 300 718-1 V2.1.0 (2017-09)






HARMONISED EUROPEAN STANDARD
Avalanche Beacons operating at 457 kHz;
Transmitter-receiver systems;
Part 1: Harmonised Standard for access to radio spectrum

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)



Reference
REN/ERM-TG28-512-1
Keywords
harmonised standard, radio, testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

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

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

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

© ETSI 2017.
All rights reserved.

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

---------------------- Page: 2 ----------------------
3 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 8
3.3 Abbreviations . 9
4 Technical requirements specifications . 9
4.1 Environmental profile . 9
4.2 Conformance requirements for transmitters . 9
4.2.1 Modulation and carrier keying . 9
4.2.1.1 Definition . 9
4.2.1.2 Method of measurement . 9
4.2.1.3 Limits . 9
4.2.2 Frequency error . 10
4.2.2.1 Definition . 10
4.2.2.2 Method of measurement . 10
4.2.2.3 Limits . 10
4.2.3 Output field strength (H-field) . 10
4.2.3.1 Definition . 10
4.2.3.2 Method of measurement . 10
4.2.3.3 Limits . 10
4.2.3.3.1 Minimum transmitted field . 10
4.2.3.3.2 Maximum transmitted field . 10
4.2.4 Transmitter spurious emis sions . 11
4.2.4.1 Definition . 11
4.2.4.2 Radiated H-field . 11
4.2.4.2.1 Method of measurement (< 30 MHz) . 11
4.2.4.2.2 Limits . 11
4.2.4.3 Effective radiated power . 11
4.2.4.3.1 Method of measurement ( ≥ 30 MHz) . 11
4.2.4.3.2 Limits . 12
4.3 Conformance requirements for receivers parameters . 12
4.3.1 Receiver sensitivity . 12
4.3.1.1 Definition . 12
4.3.1.2 Method of measurement . 12
4.3.1.3 Limits . 13
4.3.2 Receiver spurious emissions . 13
4.3.2.1 Definition . 13
4.3.2.2 Radiated H-field . 13
4.3.2.2.1 Method of measurement (< 30 MHz) . 13
4.3.2.2.2 Limits . 13
4.3.2.3 Effective radiated power . 13
4.3.2.3.1 Method of measurement ( ≥ 30 MHz) . 13
4.3.2.3.2 Limits . 14
4.3.3 Receiver blocking . 14
5 Test conditions, power sources and ambient temperatures . 15
5.1 Normal and extreme test conditions . 15
5.2 External test power source. 15
5.3 Normal test conditions . 15
ETSI

---------------------- Page: 3 ----------------------
4 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
5.3.1 Normal temperature and humidity . 15
5.3.2 Normal test voltage . 15
5.4 Extreme test conditions . 15
5.4.1 Extreme temperatures . 15
5.4.2 Extreme test voltages . 16
5.4.2.1 General requirement . 16
5.4.2.2. Procedure for tests at extreme temperatures . 16
5.5 Measurement uncertainty . 16
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 17
Annex B (normative): Test sites and general arrangements for measurements involving the
use of radiated fields . 18
B.1 General . 18
B.1.1 Normal test signals . 18
B.1.2 Test fixture . 18
B.1.3 Measuring receiver . 18
B.2 Outdoor test site . 19
B.2.1 General requirements . 19
B.2.2 Standard position . 19
B.3 Test antenna . 20
B.3.1 Below 30 MHz . 20
B.3.2 Above 30 MHz . 20
B.4 Substitution antenna . 20
B.4.1 General . 20
B.4.2 Optional additional indoor site . 21
B.5 Guidance on the use of radiation test sites . 22
B.5.1 General . 22
B.5.2 Measuring distance . 22
B.5.3 Test antenna . 22
B.5.4 Substitution antenna . 22
B.5.5 Artificial antenna . 22
B.5.6 Auxiliary cables . 22
B.6 Further optional alternative indoor test site using an anechoic chamber . 23
B.6.1 General . 23
B.6.2 Example of the construction of a shielded anechoic chamber . 23
B.6.3 Influence of parasitic reflections in anechoic chambers . 23
B.6.4 Calibration of the shielded RF anechoic chamber . 24
Annex C (normative): Spurious limits, radiated H-field at 10 m distances . 26
Annex D (informative): E-fields in the near field at low frequencies . 27
Annex E (informative): Change history . 30
History . 31


ETSI

---------------------- Page: 4 ----------------------
5 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This 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.2] 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.
The present document is part 1 of a multi-part deliverable covering avalanche beacons operating at 457 kHz transmitter-
receiver systems, as identified below:
Part 1: "Harmonised standard for access to radio spectrum;"
Part 2: "Harmonised standard for features for emergency services."

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

ETSI

---------------------- Page: 5 ----------------------
6 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI

---------------------- Page: 6 ----------------------
7 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
1 Scope
The present document specifies technical characteristics and methods of measurements for avalanche beacons operating
at 457 kHz transmitter-receiver systems.
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.1] is given in annex A.
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] CISPR 16-1-1 (2015): " Specification for radio disturbance and immunity measuring apparatus and
methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus".
[2] CISPR 16-1-4 (2010): "Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas
and test sites for radiated disturbance measurements".
[3] CISPR 16-1-5 (2014): "Specification for radio disturbance and immunity measuring apparatus and
methods; Part 1-5: Radio disturbance and immunity measuring apparatus - Antenna calibration
sites and reference test sites for 5 MHz to 18 GHz".
[4] ETSI EN 300 718-2: "Avalanche Beacons operating at 457 kHz; Transmitter-receiver systems;
Part 2: Harmonised Standard for features for emergency services".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] 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.3] ITU Radio Regulations (2012), Appendix 1 (REV.WRC-12) "Classification of emissions and
necessary bandwidths".
ETSI

---------------------- Page: 7 ----------------------
8 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
[i.4] ETSI TR 100 028 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
avalanche beacons: portable radio systems used for locating avalanche victims, for the purpose of direct rescue
NOTE: I.e. for rescue by comrades not buried by the avalanche.
artificial antenna: tuned reduced-radiating dummy load equal to the nominal impedance specified by the manufacturer
conducted measurements: measurements which are made using a direct connection to the equipment under test
E-field: electric component of the field measured as voltage per unit length
environmental profile: range of environmental conditions under which equipment within the scope of the present
document is required to comply with the provisions of the present document
H-field: magnetic component of the field measured as current per unit length
H-field test antenna: electrically screened loop or equivalent antenna, with which the magnetic component of the field
can be measured
integral antenna: antenna designed as an indispensable part of the equipment, with or without the use of an antenna
connector
radiated measurements: measurements which involve the absolute measurement of a radiated field
(S + N)/N: ratio, expressed in Decibels, between the sum of the wanted signal plus the noise floor and the noise floor
3.2 Symbols
For the purposes of the present document, the following abbreviations apply:
A1A Class of emission
NOTE: See ITU Radio Regulations [i.3].
E Electrical field strength
Eo Reference electrical field strength
NOTE: See annex B.
f Frequency
H Magnetic field strength
Ho Reference magnetic field strength
NOTE: See annex B.
N Newton
P Power
R Distance
Ro Reference distance
NOTE: See annex B
t Time
Z Wave impedance
ETSI

---------------------- Page: 8 ----------------------
9 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
l Wavelength
NOTE: See annex B
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
RF Radio Frequency
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be declared by the manufacturer. The equipment shall comply with all the technical
requirements of the present document which are identified as applicable in annex A at all times when operating within
the boundary limits of the declared operational environmental profile.
4.2 Conformance requirements for transmitters
4.2.1 Modulation and carrier keying
4.2.1.1 Definition
The modulation is the method for generating the RF carrier. The carrier keying defines the on and off times for a
non-continuous carrier.
4.2.1.2 Method of measurement
The carrier keying shall be measured by means of an oscilloscope connected to a suitable coil antenna. The
measurements shall be done under normal as well as under extreme test conditions.
4.2.1.3 Limits
The modulation shall be of type A1A, i.e. double sideband amplitude modulation with no modulating auxiliary carrier,
as used for telegraphy.
The carrier keying shall be as shown in figure 1:
• on time: 70 ms minimum;
• off time: 400 ms minimum;
• period: 1 000 ms ± 300 ms (on time plus off time).
ETSI

---------------------- Page: 9 ----------------------
10 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)

1 000 ± 300 ms
status
 70 ms
≥
≥ 400 ms
on
time
off

Figure 1
4.2.2 Frequency error
4.2.2.1 Definition
The frequency error of the transmitter system is the difference between the measured carrier frequency and the nominal
carrier frequency.
4.2.2.2 Method of measurement
The carrier frequency shall be measured by means of a test fixture (see annex B, clause B.1.2). The measurements shall
be done under normal as well as under extreme test conditions as defined in clause 5.
4.2.2.3 Limits
The frequency error shall not exceed ±80 Hz at 457 kHz.
4.2.3 Output field strength (H-field)
4.2.3.1 Definition
The H-field is measured in the direction of maximum field strength under specified conditions of measurement.
4.2.3.2 Method of measurement
The H-field produced by the equipment shall be measured on the axis of the transmitting antenna at distances of 10 m
on an outdoor test site (see annex B).
4.2.3.3 Limits
4.2.3.3.1 Minimum transmitted field
The minimum transmitted field strength at 457 kHz shall not be lower than -6 dBμA/m (0,5 μA/m) at a distance of
10 m.
4.2.3.3.2 Maximum transmitted field
The maximum transmitted field strength at 457 kHz shall not exceed 7 dBμA/m (2,23 μA/m) at a distance of 10 m.
ETSI

---------------------- Page: 10 ----------------------
11 Draft ETSI EN 300 718-1 V2.1.0 (2017-09)
4.2.4 Transmitter spurious emissions
4.2.4.1 Definition
Spurious emissions are emissions at frequencies other than those of the carrier and sidebands associated with normal
modulation. The level of spurious emissions shall be measured at normal conditions as their effective radiated power or
field strength radiated by the cabinet and the integral antenna.
4.2.4.2 Radiated H-field
4.2.4.2.1 Method of measurement (< 30 MHz)
The field strength shall be measured for frequencies below 30 MHz. The equipment under test shall be measured at a
distance of 10 m on an outdoor test site. The test antenna shall be a calibrated shielded magnetic field ante
...