SIST ETS 300 152:1999

SLOVENSKI STANDARD
01-september-1999
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Radio Equipment and Systems (RES); Maritime Emergency Position Indicating Radio
Beacons (EPIRBs) intended for use on the frequency 121.5 MHz or the frequencies
121.5 MHz and 243 MHz for homing purposes only Technical characteristics and
methods of measurement
Ta slovenski standard je istoveten z: ETS 300 152 Edition 1
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 152
TELECOMMUNICATION December 1991
STANDARD
Source: ETSI TC-RES1 Reference: DE/RES-01004 [BC]
ICS: 33.060
radio, maritime, rescue, emergency
Key words:
Radio Equipment and Systems;
Maritime Emergency Position Indicating
Radio Beacons (EPIRBs) intended for use on
the frequency 121,5 MHz or the frequencies
121,5 MHz and 243 MHz for homing purposes only
Technical characteristics and methods of measurement
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1991. All rights reserved.
New presentation - see History box

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ETS 300 152: December 1991
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 152: December 1991
Contents
Foreword .5
1 Scope .7
2 General requirements .7
2.1 Construction.7
2.2 Controls.8
2.3 Labelling.8
2.4 Requirements for conformity testing purposes .8
2.5 Battery.8
3 Test conditions, power sources and ambient temperatures .9
3.1 Test frequencies .9
3.2 Test fixture .9
3.3 Normal and extreme test conditions .9
3.4 Test power source .9
3.5 Normal test conditions .9
3.5.1 Normal temperature .9
3.5.2 Normal test voltage .9
3.6 Extreme test conditions .10
3.6.1 Extreme temperatures.10
3.6.2 Extreme test voltages.10
3.6.2.1 Upper extreme test voltage .10
3.6.2.2 Lower extreme test voltage .10
3.7 Procedure for tests at extreme temperatures.10
3.8 Environmental tests .10
3.8.1 Drop Test.11
3.8.1.1 Definition.11
3.8.1.2 Test conditions .11
3.8.1.3 Method of measurement.11
3.8.1.4 Requirements .11
3.8.1.5 Post completion state .11
4 Frequencies, class of emission, and radiation characteristics .11
4.1 Frequencies .11
4.2 Frequency error .11
4.2.1 Definition .11
4.2.2 Method of measurement .11
4.2.3 Limit.12
4.3 Class of emission.12
4.4 Modulation characteristics .12
4.4.1 Depth of modulation .12
4.4.2 Modulation duty-cycle.12
4.4.3 Method of measurement .12
4.4.4 Limits.13
4.5 Radiation characteristics.13
4.6 Radiated peak envelope power .13
4.6.1 Definition .13
4.6.2 Method of measurement .14
4.6.2.1 Method of measurement under extreme test conditions .14
4.6.3 Limit.14
4.7 Radiation produced by operation of the test facility .14
4.7.1 Definition .14
4.7.2 Method of measurement .14
4.7.3 Limit.14
4.8 Spurious emissions.15
4.8.1 Definition .15

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ETS 300 152: December 1991
4.8.2 Method of measurement. 15
4.8.3 Limit . 15
4.9 Protection of the transmitter. 15
4.9.1 Definition. 15
4.9.2 Method of measurement. 15
4.9.3 Requirement . 15
Annex A (normative): Test site and general arrangements for measurements involving the use of
radiated fields. 16
A.1 Test site . 16
A.2 Test antenna. 16
A.3 Substitution antenna . 16
A.4 Alternative indoor site . 16
History. 18

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ETS 300 152: December 1991
Foreword
This European Telecommunication Standard (ETS) has been produced by the Radio Systems and
Equipment (RES) Technical Committee of the European Telecommunications Standards Institute (ETSI) and
has undergone the ETSI approvals procedure.
This standard lays down the minimum requirements for maritime Emergency Position Indicating Radio
Beacons (EPIRBs) operating on certain frequencies, and incorporates the relevant provisions of the
International Telecommunication Union (ITU) Radio Regulations and the relevant standards of the
International Civil Aviation Organization (ICAO).
Every ETS prepared by ETSI is a voluntary standard. This ETS contains text concerning the type approval of
the equipment to which it relates. This text should be considered only as guidance and does not make this
ETS mandatory.
Annex A to this ETS is normative.

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ETS 300 152: December 1991
Blank page
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ETS 300 152: December 1991
1 Scope
This European Telecommunication Standard (ETS) states the minimum requirements for maritime
Emergency Position-Indicating Radio Beacons (EPIRBs), and incorporates the provisions of the ITU Radio
Regulations and the relevant standards of the International Civil Aviation Organisation.
EPIRBs are defined as stations in the maritime mobile service, the emissions of which are intended to
facilitate search and rescue operations.
The EPIRBs described in this ETS are intended only for transmission of radio signals on the frequency 121,5
MHz or the frequencies 121,5 MHz and 243 MHz for locating vessels and survival craft in distress.
This ETS also applies to EPIRBs intended for very short range man-overboard location applications. For this
application, both the radiated power and the length of time for operation are reduced to enable the equipment
to be sufficiently small and light to be worn comfortably at all times.
2 General requirements
2.1 Construction
In all respects, the mechanical and electrical design and the construction and finish of the equipment shall
conform with good engineering practice.
The equipment shall be designed to minimise the risk of internal and external damage during use or
stowage.
The exterior of the equipment shall have no sharp edges or projections which could easily damage inflatable
rafts or injure personnel.
The general construction and method of operation shall provide a high degree of proof against inadvertent
operation due to magnetic influences, handling, stowage and transit, whilst still providing a simple means of
operation in an emergency.
The equipment shall be portable, lightweight, and compact and be designed as one integral unit. The EPIRB
shall derive its energy from a battery forming a part of the equipment and incorporate a permanently attached
antenna which may be either fixed length or extendable.
The EPIRB may be fitted with a test facility by which the functioning of the transmitter and battery can be
easily tested without the use of any external equipment.
The equipment shall be capable of being used by an unskilled person and only be capable of manual
activation and deactivation.
The EPIRB shall be watertight and buoyant.
The equipment shall be provided with an indication that signals are being emitted. The indication to the user
shall be either an audible or visual indication, clearly discernible under all ambient conditions.
A substantial part of the equipment shall be of highly visible yellow or orange colour to assist visual location.
The equipment shall not be unduly affected by sea water or oil and shall be resistant to deterioration by
prolonged exposure to sunlight.
Necessary operating instructions shall be provided with the equipment.

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ETS 300 152: December 1991
2.2 Controls
The equipment shall be initially activated by the use of two simple, but independent mechanical actions,
neither of which on its own shall activate the equipment. For equipment relating solely to man-overboard
location applications, the second mechanical action may be replaced by a total immersion sensor.
The equipment shall not be capable of automatic activation, except in the case of the second operation for
man-overboard devices only.
Initial activation shall break a seal which shall not be replaceable by the user. This seal shall not be broken
when using the test facility.
After activation it shall be simple to de-activate the equipment.
The switch which operates any test facility (subclause 2.1, sixth paragraph), shall be so designed that it
returns automatically to the off-position when released.
2.3 Labelling
The equipment shall be provided with a label, or labels, permanently affixed to the exterior of the equipment,
containing the following information:
- type designation of the equipment;
- adequate instructions to enable the equipment to be activated and de-activated;
- the type of battery as specified by the manufacturer of the EPIRB;
- a warning to the effect that the EPIRB should not be operated except in an emergency.
- the date on which the battery will need to be replaced. Simple means shall be provided for changing
this date when the battery is replaced.
2.4 Requirements for conformity testing purposes
To assist the testing authority, complete technical and operational documentation shall be provided with the
equipment.
For the purpose of conformity testing, 3 sets of batteries shall be submitted.
2.5 Battery
The battery provided as a power source shall have sufficient capacity to operate the equipment for an
uninterrupted period of at least 24 hours, or for man-overboard devices only, at least 6 hours, under all
temperature conditions, (see subclause 3.6.1), within the requirements of this ETS.
The type of battery specified by the manufacturer for use in the equipment shall be clearly stated on the
equipment.
The battery shall be clearly and durably marked with the expiry date.
Provisions shall be made for protecting the equipment from damage due to accidental reversal of polarity of
the battery.
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ETS 300 152: December 1991
3 Test conditions, power sources and ambient temperatures
3.1 Test frequencies
For the purpose of conformity testing, the EPIRB shall be provided with the frequencies specified by the
administration of the country in which the test is carried out.
3.2 Test fixture
The manufacturer shall supply a test fixture permitting relative measurements to be made on the submitted
sample. This test fixture shall provide a 50 ohm radio frequency terminal at the working frequencies of the
equipment.
The performance characteristics of the test fixture, under normal and extreme conditions, shall be subjected
to the approval of the testing authority. The following characteristics shall apply:
- the coupling loss shall be as low as possible and in no case greater than 30 dB;
- the variation of coupling loss with frequency shall not cause measurement errors exceeding 2 dB;
- the coupling device shall not incorporate any non-linear elements;
- the power consumption of the EPIRB shall not change substantially when fitted in the test fixture.
Any connections provided on the equipment in order to facilitate relative measurements shall not affect the
performance of the equipment, neither in the test fixture nor when making measurements involving the use of
radiated fields.
3.3 Normal and extreme test conditions
Conformity testing shall be carried out under normal and extreme test conditions, unless otherwise stated.
3.4 Test power source
Where stated, the battery of the equipment shall be replaced by a test power source capable of producing
normal and extreme test voltages as specified in subcla
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