ETSI I-ETS 300 330 ed.1 (1994-12)

Radio Equipment and Systems (RES); Short Range Devices (SRDs); Technical characteristics and test methods for radio equipment in the frequency range 9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz

DI/RES-08-0104

Radijska oprema in sistemi (RES) - Naprave kratkega dosega (SRDs) - Tehnične karakteristike in preskuševalne metode za radijsko opremo v frekvenčnem območju od 9 kHz do 25 MHz in sistemi z indukcijsko zanko v frekvenčnem območju od 9 kHz do 30 MHz

General Information

• Status: Published
• Publication Date: 03-Jan-1995
• Technical Committee: RES 8 - Low Power Devices
• Current Stage: 12 - Completion
• Due Date: 28-Nov-1994
• Completion Date: 04-Jan-1995
• Ref Project: SIST I-ETS 300 330:1999 - Radio Equipment and Systems (RES); Short Range Devices (SRDs); Technical characteristics and test methods for radio equipment in the frequency range 9 kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz

Standards Content (Sample)

SLOVENSKI STANDARD
SIST I-ETS 300 330:1999
01-oktober-1999
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NDUDNWHULVWLNHLQSUHVNXãHYDOQHPHWRGH]DUDGLMVNRRSUHPRYIUHNYHQþQHP
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Radio Equipment and Systems (RES); Short Range Devices (SRDs); Technical
characteristics and test methods for radio equipment in the frequency range 9 kHz to 25
MHz and inductive loop systems in the frequency range 9 kHz to 30 MHz
Ta slovenski standard je istoveten z: I-ETS 300 330 Edition 1
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
SIST I-ETS 300 330:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST I-ETS 300 330:1999

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SIST I-ETS 300 330:1999
EUROPEAN I-ETS 300 330
TELECOMMUNICATION December 1994
STANDARD
Source: ETSI TC-RES Reference: DI/RES-08-0104
ICS: 33.060, 33.060.20
Inductive systems, short range devices, testing
Key words:
Radio Equipment and Systems (RES);
Short Range Devices (SRDs)
Technical characteristics and test methods
for radio equipment in the frequency range 9 kHz to 25 MHz
and inductive loop systems in the frequency range
9 kHz to 30 MHz
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 - [e-mail]
X.400: Internet:
Tel.: [phone] - Fax: [phone]
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 1994. All rights reserved.
New presentation - see History box

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I- ETS 300 330: December 1994
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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Contents
Foreword .7
Introduction.7
1 Scope .9
2 Normative references.9
3 Definitions, abbreviations and symbols.10
3.1 Definitions .10
3.2 Abbreviations .11
3.3 Symbols .11
4 General requirements .11
4.1 Mechanical and electrical design.11
4.1.1 General.11
4.1.2 Controls .11
4.1.3 Transmitter shut-off facility .11
4.1.4 Marking (equipment identification) .11
4.1.5 Receiver mute or squelch.12
4.2 Declarations by the applicant.12
4.3 Auxiliary test equipment.12
4.4 Interpretation of the measurement results.12
5 Test conditions, power sources and ambient temperatures .12
5.1 Normal and extreme test conditions .12
5.2 External test power source .12
5.3 Normal test conditions .13
5.3.1 Normal temperature and humidity.13
5.3.2 Normal test power source .13
5.3.2.1 Mains voltage.13
5.3.2.2 Regulated lead-acid battery power sources .13
5.3.2.3 Other power sources .13
5.4 Extreme test conditions .13
5.4.1 Extreme temperatures.13
5.4.1.1 Procedure for tests at extreme temperatures.13
5.4.1.1.1 Procedure for equipment designed for
continuous operation.14
5.4.1.1.2 Procedure for equipment designed for
intermittent operation .14
5.4.1.2 Extreme temperature ranges.14
5.4.2 Extreme test source voltages.14
5.4.2.1 Mains voltage.14
5.4.2.2 Regulated lead-acid battery power sources .15
5.4.2.3 Power sources using other types of batteries.15
5.4.2.4 Other power sources .15
6 General conditions .15
6.1 Normal test signals and test modulation.15
6.1.1 Normal test signals for analogue speech .15
6.1.2 Normal test signals for data .15
6.2 Artificial antenna .16
6.3 Test fixture .16
6.4 Test sites and general arrangements for radiated measurements.16
6.5 Modes of operation of the transmitter.16
6.6 Measuring receiver .16
6.7 Pulse modulated signal below 135 kHz .17

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7 Transmitter requirements . 19
7.1 Transmitter definitions. 19
7.1.1 The inductive loop coil transmitters . 19
7.1.2 The large size loop transmitters. 19
7.1.3 Other transmitters. 19
7.1.4 Product classes . 19
7.2 Transmitter carrier output levels. 20
7.2.1 H-field (Class 1). 20
7.2.1.1 Definition . 20
7.2.1.2 Methods of measurement . 20
7.2.1.3 Limits. 20
7.2.2 RF carrier current (Classes 2 and 3) . 21
7.2.2.1 Definition . 21
7.2.2.2 Methods of measurement . 21
7.2.2.3 Limits. 22
7.2.2.3.1 Class 2: . 22
7.2.2.3.2 Class 3 . 22
7.2.3 Radiated E-field (Class 4). 22
7.2.3.1 Definition . 22
7.2.3.2 Methods of measurement . 22
7.2.3.3 Limits. 23
7.3 Operating frequencies. 23
7.3.1 Definition. 23
7.3.2 Frequency error . 23
7.3.2.1 Definition . 23
7.3.2.2 Methods of measurement . 23
7.3.2.3 Limits. 23
7.3.3 Modulation bandwidth. 23
7.3.3.1 Definition . 23
7.3.3.2 Methods of measurement . 23
7.3.3.3 Limit. 24
7.4 Spurious emissions .24
7.4.1 Definition. 24
7.4.2 Conducted spurious emissions, subclause 7.4.1 1 a . 24
7.4.2.1 Class 2 . 24
7.4.2.1.1 Methods of measurement (< 30 MHz) . 24
7.4.2.1.2 Limits. 25
7.4.2.1.3 Methods of measurement (≥ 30 MHz) . 25
7.4.2.1.4 Limits. 25
7.4.2.2 Class 3 . 25
7.4.2.2.1 Methods of measurement . 25
7.4.2.2.2 Limits. 25
7.4.3 Field strength, subclause 7.4.1 1 b and 2. 26
7.4.3.1 Methods of measurement (< 30 MHz) . 26
7.4.3.2 Limits. 26
7.4.4 Effective radiated power, subclause 7.4.1 1 b and 2. 26
7.4.4.1 Methods of measurement (≥ 30 MHz) . 26
7.4.4.2 Limits. 27
8 Receiver requirement . 28
8.1 Receiver spurious radiation. 28
8.1.1 Definition. 28
8.1.2 Methods of measurement. 28
8.1.3 Limits . 28
8.1.3.1 Radiated emissions below 30 MHz:. 28
8.1.3.2 Radiated emissions above 30 MHz:. 28
9 Measurement uncertainty . 29
Annex A (normative): Radiated measurements. 30
A.1 Test sites and general arrangements for measurements involving the use of radiated fields . 30
A.1.1 Outdoor test site. 30

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A.1.1.1 Test support for body worn equipment.30
A.1.1.2 Standard position .31
A.1.2 Test antenna.31
A.1.2.1 Below 30 MHz .31
A.1.2.2 Above 30 MHz.31
A.1.3 Substitution antenna .31
A.1.4 Optional additional indoor site.32
A.2 Guidance on the use of radiation test sites .33
A.2.1 Measuring distance.33
A.2.2 Test antenna.33
A.2.3 Substitution antenna .33
A.2.4 Artificial antenna .33
A.2.5 Auxiliary cables .33
A.3 Further optional alternative indoor test site using an anechoic chamber .33
A.3.1 Example of the construction of a shielded anechoic chamber .34
A.3.2 Influence of parasitic reflections in anechoic chambers .34
A.3.3 Calibration of the shielded RF anechoic chamber.34
Annex B (normative): Transmitter carrier limits, radiated H-Field @ 10 m distance.37
Annex C (normative): Transmitter RF carrier current limit for large size loop .38
Annex D (normative): H-field limit correction factor for generated E-fields .39
Annex E (normative): Spurious limits, radiated H-field at 10 m distances .40
Annex F (normative): Test fixture for measuring carrier and harmonic currents by use of an artificial
antenna.41
Annex G (informative): E-fields in the near field at low frequencies.42
Annex H (informative): Category 2 - customised loop antennas.43
H.1 Carrier currents .43
History.46

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Foreword
This Interim European Telecommunication Standard (I-ETS) has been prepared by the Radio Equipment
and Systems (RES) Technical Committee of the European Telecommunications Standards Institute
(ETSI).
Annex A provides normative specifications concerning radiated measurements.
Annexes B through E are graphical representations of RF carrier current limits, H- and E-field strength
carrier limits and spurious emission limits.
Annex F is normative describing the calculation for customised antennas.
Annexes G and H are informative annexes describing E-fields, and test fixtures.
Proposed announcement date
Date of latest announcement of this I-ETS (doa): 31st March 1995
Introduction
This I-ETS is intended to specify the minimum performance and the methods of measurement of Short
Range Devices (SRDs) as specified in the scope.
Included are methods of measurement for equipment, such as inductive loop systems, fitted with antenna
connector and/or integral antennas. Equipment designed for use with an integral antenna may be supplied
with a temporary or permanent internal connector for the purpose of testing, providing the characteristics
being measured are not expected to be affected.
This I-ETS will be used by accredited test laboratories for the assessment of the performance of the
equipment. Type test measurements will be performed in one of the accredited test laboratories, accepted
by the various National Regulatory authorities in order to grant type testing, provided the National
regulatory requirements are met. This is in compliance with CEPT Recommendation T/R 71-03 [1].
If equipment, which is available on the market, is required to be checked it should be tested in accordance
with the methods of measurement specified in this I-ETS.

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1 Scope
This I-ETS is a general standard for the frequency band 9 kHz to 25 MHz for radio equipment and 9 kHz
to 30 MHz for inductive loop systems, which may be superseded by specific standards covering specific
applications.
This I-ETS covers the minimum characteristics considered necessary in order to make the best use of the
available frequencies.
It does not necessarily include all the characteristics which may be required by a user, nor does it
necessarily represent the optimum performance achievable.
It applies to SRDs as follows:
- inductive loop systems;
- with an antenna connection and/or with an integral antenna;
- for alarms, identification systems, telecommand, telemetry, etc., applications;
- with or without speech.
All types of modulation for radio devices are covered by this I-ETS.
This I-ETS covers fixed stations, mobile stations and portable stations. If the system includes
transponders, these will be measured together with the transmitter.
Two types of measuring methods are defined in this I-ETS due to the varied nature of the types of
equipment used in this band. One method measures the RF carrier current, the other measures the H-
field.
CEPT Recommendation T/R 01-04 [2], on Low Power Devices (LPDs) using an integral antenna,
mentions in the frequency range 9 kHz to 25 MHz two frequency bands, 6,765 to 6,795 MHz and 13,553
to 13,567 MHz, with a field strength limit of 65 dBμV/m measured at 30 m (which is equivalent to
42 dBμA/m at 10 m).
On non-harmonized parameters, national administrations may impose conditions on the type of
modulation, channel/frequency separations, maximum transmitter output power/effective radiated power,
equipment marking and the inclusion of an automatic transmitter shut-off facility, as a condition for the
issue of an individual or general licence, or as a condition for use under licence exemption.
Additional standards or specifications may be required for equipment such as that intended for connection
to the Public Switched Telephone Network (PSTN).
This I-ETS covers requirements for radiated emissions below 30 MHz.
2 Normative references
This I-ETS incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and publications are listed hereafter.
For dated references, subsequent amendments to or revisions of any of these publications apply to this I-
ETS only when incorporated in it by amendment or revision. For undated references the latest edition of
the publication referred to applies.
[1] CEPT Recommendation T/R 71-03: "Procedures for type testing and approval
for radio equipment intended for non-public systems".
[2] CEPT Recommendation T/R 01-04: "Use of Low Power Devices (LPD) using
integral antennas and operating in harmonized frequency bands".
[3] CCITT Recommendation O.153 (1992): "Basic parameters for the R1
measurement of error performance at bit rates below the primary rate".

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[4] CISPR 16-1: "Specification for radio disturbance and immunity measuring
apparatus and methods Part 1: Radio disturbance and immunity measuring
apparatus".
[5] ETR 028: "Radio equipment and Systems (RES); Uncertainties in the
measurement of mobile radio equipment characteristics".
3 Definitions, abbreviations and symbols
3.1 Definitions
For the purposes of this I-ETS the following definitions apply:
Alarm: the use of radio communication for indicating an alarm condition at a distant location.
Artificial antenna: a tuned reduced-radiating dummy load equal to the nominal impedance specified by
the applicant.
Assigned frequency band: the frequency band within which the device is authorised to operate.
Conducted measurements: measurements which are made using a direct connection to the equipment
under test.
Fixed station: equipment intended for use in a fixed location.
H-field test antenna: an electrically screened loop or equivalent antenna, with which the magnetic
component of the field can be measured.
Identification system: equipment consisting of a transmitter(s), receiver(s) (or a combination of the two)
and an antenna(s) to identify a transponder.
Integral antenna: an antenna designed as an indispensable part of the equipment, with or without the use
of an antenna connector.
Magnetic Moment: the product of (Number of coil turns) * (coil area) * (coil current). (Air coils only)
Mobile station: equipment normally installed in a vehicle.
Portable station: equipment intended to be carried.
Radiated measurements: measurements which involve the absolute measurement of a radiated field.
Telecommand: the use of radio communication for the transmission of signals to initiate, modify or
terminate functions of equipment at a distance.
Telemetry: the use of radio communication for indicating or recording data at a distance.
Transponder: a device, that responds to an interrogation signal.

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3.2 Abbreviations
For the purposes of this I-ETS, the following abbreviations apply:
EMC Electro-Magnetic Compatibility
ETR ETSI Technical Report
IF Intermediate Frequency
ISM Industrial, Scientific and Medical
RF Radio Frequency
Rx Receiver
Tx Transmitter
VSWR Voltage Standing Wave Ratio
3.3 Symbols
For the purposes of this I-ETS the following symbols apply:
E Electrical field strength
Eo Reference electrical field strength, (see annex A)
f Frequency
H Magnetic field strength
Ho Reference magnetic field strength, (see annex A)
P Power
R Distance
Ro Reference distance, (see annex A)
t Time
4 General requirements
4.1 Mechanical and electrical design
4.1.1 General
The equipment submitted by the applicant, should be designed, constructed and manufactured in
accordance with sound engineering practice and with the aim of minimising harmful interference to other
equipment and services.
Transmitters and receivers may be individual or combination units, but shall operate with the correct
power source.
4.1.2 Controls
Those controls which, if maladjusted, might increase the interfering potentialities of the equipment shall
not be easily accessible to the user.
4.1.3 Transmitter shut-off facility
If the transmitter is equipped with an automatic transmitter shut-off facility, it should be made inoperative
for the duration of the test.
4.1.4 Marking (equipment identification)
The equipment shall be marked in a visible place. This marking shall be legible and durable.
The marking shall be in accordance with the requirements of the National Regulatory Authority and should
include as a minimum:
- the name of the manufacturer or his trade mark;
- the type designation.

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4.1.5 Receiver mute or squelch
If the receiver is equipped with a mute, squelch or battery-saving circuit, this circuit shall be made
inoperative for the duration of the tests.
4.2 Declarations by the applicant
When submitting equipment for type testing, the applicant shall supply the necessary information
according to the appropriate application form.
The performance of the equipment submitted for type testing shall be representative of the performance
of the corresponding production model.
4.3 Auxiliary test equipment
All necessary test signal sources and set-up information shall accompany the equipment when it is
submitted for type testing.
4.4 Interpretation of the measurement results
The interpretation of the results recorded on the appropriate test report for the measurements described in
this I-ETS shall be as follows:
- the measured value relating to the corresponding limit shall be used to decide whether an
equipment meets the requirements of the I-ETS;
- the measurement uncertainty value for the measurement of each parameter shall be included in the
test report;
- the recorded value of the measurement uncertainty shall be, for each measurement, equal to, or
lower than, the figures in the table of measurement uncertainty (clause 9).
5 Test conditions, power sources and ambient temperatures
5.1 Normal and extreme test conditions
Type testing shall be made under normal test conditions, and also, where stated, under extreme test
conditions.
The test conditions and procedures shall be as specified in subclauses 5.2 to 5.4.
5.2 External test power source
During type tests, the power source of the equipment shall be replaced by an external test power source
capable of producing normal and extreme test voltages as specified in subclauses 5.3.2 and 5.4.2. The
internal impedance of the external test power source shall be low enough for its effect on the test results
to be negligible. For the purpose of the tests, the voltage of the external test power source shall be
measured at the input terminals of the equipment.
For battery-operated equipment the battery shall be removed and the external test power source shall be
suitably de-coupled and applied as close to the equipment battery terminals as practicable. For radiated
measurements any external power leads should be so arranged so as not to affect the measurements. If
necessary, the external power supply may be replaced with its own internal batteries at the required
voltage; this shall be stated on the test report. For radiated measurements on portable equipment with
integral antenna, fully charged internal batteries should be used. The batteries used should be as supplied
or recommended by the applicant.
If the equipment is powered from an external source, the test voltage shall be that measur
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