ETSI ETS 300 279 ed.1 (1996-02)

SLOVENSKI STANDARD
SIST ETS 300 279:1999
01-junij-1999
Radijska oprema in sistemi (RES) - Standard elektromagnetne združljivosti (EMC)
za zasebni mobilni radio (PMR) in pomožno opremo (govorno oziroma negovorno)

Radio Equipment and Systems (RES); ElectroMagnetic Compatibility (EMC) standard for

Private land Mobile Radio (PMR) and ancillary equipment (speech and/or non-speech)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the

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.

Foreword .......................................................................................................................................................5

1 Scope ..................................................................................................................................................7

2 Normative references..........................................................................................................................7

3 Definitions............................................................................................................................................8

4 General test conditions........................................................................................................................8

4.1 Test conditions and configurations ......................................................................................8

4.1.1 Emission tests .................................................................................................9

4.1.2 Immunity tests .................................................................................................9

4.1.2.1 Mode of operation..................................................................9

4.1.2.2 Normal test modulation..........................................................9

transmitter............................................................................10

transmitter............................................................................10

4.1.2.8 Transmitter exclusion band .................................................11

transceivers .........................................................................11

5 Performance assessment .................................................................................................................12

5.1 General ..............................................................................................................................12

5.2 Equipment which can provide a communications link .......................................................12

5.3 Equipment which does not provide a communications link ...............................................12

5.4 Ancillary equipment............................................................................................................12

5.5 Equipment classification ....................................................................................................12

6 Performance criteria..........................................................................................................................13

6.1 General ..............................................................................................................................13

6.2 Performance criteria for Continuous phenomena applied to Transmitters (CT)................13

6.3 Performance criteria for Transient phenomena applied to Transmitters (TT) ...................13

6.4 Performance criteria for Continuous phenomena applied to Receivers (CR)....................13

6.5 Performance criteria for Transient phenomena applied to Receivers (TR) .......................14

7 Applicability overview tables..............................................................................................................14

7.1 Emission ............................................................................................................................14

7.2 Immunity ............................................................................................................................15

8 Test methods and limits for emission tests.......................................................................................15

8.1 Enclosure of ancillary equipment.......................................................................................15

8.1.1 Definition .......................................................................................................15

8.1.2 Test method ..................................................................................................15

8.1.3 Limits.............................................................................................................15

8.2 DC power input/output port................................................................................................16

8.2.1 Definition .......................................................................................................16

8.2.2 Test method ..................................................................................................16

8.2.3 Limits.............................................................................................................16

8.3 AC mains power input/output port......................................................................................17

8.3.1 Definition .......................................................................................................17

8.3.2 Test method ..................................................................................................17

8.3.3 Limits.............................................................................................................17

9 Test methods and levels for immunity tests ..................................................................................... 17

9.1 Radio frequency electromagnetic field (80-1000 MHz) ..................................................... 17

9.1.1 Definition....................................................................................................... 17

9.1.2 Test method.................................................................................................. 17

9.1.3 Performance criteria ..................................................................................... 18

9.2 Electrostatic discharge ...................................................................................................... 18

9.2.1 Definition....................................................................................................... 18

9.2.2 Test method.................................................................................................. 18

9.2.3 Performance criteria ..................................................................................... 18

9.3 Fast transients common mode.......................................................................................... 19

9.3.1 Definition....................................................................................................... 19

9.3.2 Test method.................................................................................................. 19

9.3.3 Performance criteria ..................................................................................... 19

9.4 RF common mode, 0,15 MHz - 80 MHz (current clamp injection).................................... 19

9.4.1 Definition....................................................................................................... 20

9.4.2 Test method.................................................................................................. 20

9.4.3 Performance criteria ..................................................................................... 20

9.5 Transients and surges, vehicular environment ................................................................. 20

9.5.1 Definition....................................................................................................... 21

9.5.2 Test method.................................................................................................. 21

9.5.3 Performance criteria ..................................................................................... 22

9.6 Voltage dips and interruptions........................................................................................... 22

9.6.1 Definition....................................................................................................... 22

9.6.2 Test method.................................................................................................. 22

9.6.3 Performance criteria ..................................................................................... 22

9.7 Surges common and differential mode ............................................................................. 23

9.7.1 Definition....................................................................................................... 23

9.7.2 Test method.................................................................................................. 23

9.7.3 Performance criteria ..................................................................................... 23

History......................................................................................................................................................... 24

This (ETS) has been produced by the Radio Equipment and Systems (RES) Technical Committee of the

This ETS is based upon Generic Standards EN 50081-1 [1] and EN 50082-1 [2] and other standards

This ETS covers the assessment of radiocommunications and ancillary equipment in respect of

ElectroMagnetic Compatibility (EMC). Technical specifications related to the antenna port and emissions

for the enclosure port of radio equipment are found in the related product standards for the effective use

This ETS specifies the applicable EMC tests, the test methods, the limits and the minimum performance

criteria for Private land Mobile Radio (PMR) equipment (speech and/or non-speech) operating in the

The environmental classification used in this ETS refers to the environment classification used in the

Generic Standards EN 50081-1 [1], EN 50082-1 [2], except for the vehicular environment class which

The EMC requirements have been selected to ensure an adequate level of compatibility for apparatus at

residential, commercial, light industrial and vehicular environments. The levels do not cover extreme

This ETS may not cover those cases where a potential source of interference which is producing

individually repeated transient phenomena or a continuous phenomena is permanently present, e.g. a

radar or broadcast site in the near vicinity. In such a case it may be necessary to use special protection

Compliance of radio equipment to the requirements of this ETS does not signify compliance to any

Compliance to this ETS does not signify compliance to any safety requirements. However, it is the

responsibility of the assessor of the equipment that any observations regarding apparatus becoming

dangerous or unsafe as a result of the application of the tests of this ETS, should be recorded in the test

This ETS incorporates, by dated or undated reference, provisions from other publications. These

normative references are cited at the appropriate places in the text and relate to the publications listed

hereafter. For dated references, subsequent amendments to, or revisions of, any of these publications

apply to this ETS only when incorporated in it by amendment or revision. For undated references, the

[1] EN 50081-1 (1992): "Electromagnetic compatibility - generic emission standard.

[2] EN 50082-1 (1992): "Electromagnetic compatibility - generic immunity standard.

[4] CISPR Publication No. 16-1: "Specification for radio disturbance and immunity

[6] IEC 801-2 (second edition 1991); Part 2: "Electrostatic discharge requirement".

[7] IEC 801-4 (1988); Part 4: "Electrical fast transients / burst requirements".

radiocommunications equipment: An apparatus which includes one or more transmitters and/or

This type of equipment (apparatus) is used in a fixed, mobile or a portable application.

ancillary equipment: Equipment (apparatus), used in connection with a receiver, transmitter or

- the equipment is intended for use in conjunction with a receiver, transmitter or transceiver to

provide additional operational and/or control features to the radio equipment (e.g. to extend control

- the equipment cannot be used on a stand alone basis to provide user functions independently of a

- the receiver, transmitter or transceiver to which it is connected, is capable of providing some

intended operation such as transmitting and/or receiving without the ancillary equipment, i.e. it is not

a sub-unit of the main equipment essential to the main equipment basic functions.

port: A particular interface of the specified equipment (apparatus) with the external electromagnetic

enclosure port: The physical boundary of the apparatus onto which an electromagnetic field may radiate

integral antenna: An antenna designed to be connected directly to the equipment with or without the use

of an external connector and considered to be part of the equipment. An integral antenna may be fitted

This clause defines the general test configuration and is relevant for clauses 8 and 9.

The equipment shall be tested under conditions which are within the manufacturer's declared range of

Where portable (handheld) equipment is provided with a detachable integral antenna, it shall be tested

with the antenna fitted in a manner typical of normal intended use, unless specified otherwise.

If the equipment is part of a system, or can be connected to ancillary equipment, then it shall be

acceptable to test the equipment while connected to the minimum configuration of ancillary equipment

Ports which in normal operation are connected shall be connected to an ancillary equipment or to a

representative piece of cable correctly terminated to simulate the impedance of the ancillary equipment,

If the equipment has a large number of ports, then a sufficient number shall be selected to simulate actual

operation conditions and to ensure that all the different types of termination are tested.

Ports which are not connected to cables during normal intended operation, e.g. service connectors,

programming connectors, temporary connectors etc. shall not be connected to any cables for the purpose

of EMC testing. Where cables have to be connected to these ports, or interconnecting cables have to be

extended in length in order to exercise the EUT, precautions shall be taken to ensure that the evaluation

The tests shall be carried out at a point within the specified normal operating environmental range at the

The test conditions, test configuration and mode of operation shall be recorded in the test report.

This subclause defines the test conditions and configurations for the emission tests as follows:

- the measurement shall be made in the operation mode producing the largest emission in the

- an attempt shall be made to maximise the detected radiated emission for example by moving the

This subclause defines the test conditions and configurations for the immunity tests as follows:

- the measurement shall be made in the mode of operation as required in subclause 4.1.2.1;

- for the immunity tests of ancillary equipment without separate pass/fail criteria, the receiver,

transmitter or transceiver coupled to the ancillary equipment, shall be used to judge whether the

For the immunity tests of transmitters, the transmitter shall be operated at its maximum rated output

power, modulated with normal test modulation (subclauses 4.1.2.2 and 4.1.2.3). A communication link

shall be established (subclause 4.1.2.4) at the start of the test and maintained during the test.

For the immunity tests of receivers, the wanted input signal, coupled to the receiver, shall be modulated

with normal test modulation (subclauses 4.1.2.2 and 4.1.2.5). A communication link shall be established

For the immunity tests of duplex transceivers, the EUT may be configured in the repeater mode,

- the receiver wanted input signal shall be set to the nominal frequency of the receiver modulated

with a sinusoidal audio frequency of 1 000 Hz to a deviation of 60 % peak system deviation for

- the transmitter of the EUT shall be modulated with a sinusoidal audio frequency of 1 000 Hz at a

- the receiver wanted input signal shall be set to the nominal frequency of the receiver modulated

with a test signal specified by the manufacturer which represents normal operation;

- the transmitter shall be modulated with a test signal which represents normal operation as specified

- the manufacturer may have to supply the test modulation/de-modulation equipment.

- the receiver wanted input signal shall be set to the nominal frequency of the receiver modulated

with a test signal specified by the manufacturer which represents normal operation;

- the transmitter shall be modulated with a test signal which represents normal operation as specified

- the manufacturer may have to supply the test modulation/de-modulation equipment.

The test signal generator (modulation) shall be able to produce a continuous stream of data or a repetitive

The test signal receiver (de-modulator) shall be able to produce a readout of Bit Error Ratio (BER) of a

The transmitter should be modulated with normal test modulation, by an internal or external signal source

For equipment without an antenna connector, the wanted signal to establish a communication link shall be

delivered from the equipment to an antenna located within the test environment. The measuring

equipment for the wanted signal shall be located outside of the test environment. Adequate measures

shall be taken to avoid the effect of the unwanted signal on the measuring equipment

For equipment with an antenna connector, the wanted signal to establish a communication link shall be

delivered from the antenna connector by a coaxial cable. The measuring equipment for the wanted signal

shall be located outside of the test environment. Adequate measures shall be taken to avoid the effect of

For equipment without an antenna connector, the wanted input signal to establish a communication link

shall be presented to the equipment from an antenna located within the test environment. It shall be

approximately 40 dB above the minimum level necessary to achieve the performance criteria, measured

while the power amplifiers generating the EMC disturbance are switched on but without excitation. This

level of the wanted input signal is expected to represent a normal operation signal level and should be

sufficient to avoid the broad band noise from the power amplifiers generating the EMC disturbance from

influencing the measurement. The source of the wanted input signal shall be located outside of the test

For equipment with an antenna connector, the wanted input signal to establish a communication link shall

be presented to the antenna connector by a coaxial cable. The source of the wanted input signal shall be

located outside of the test environment and shall be approximately 40 dB above the minimum level

necessary to achieve the performance criteria, measured while the power amplifiers generating the EMC

For speech equipment the audio frequency output of the equipment should be coupled via an electrically

non-conductive acoustic tube to an audio distortion meter or other measuring equipment outside of the

test environment. Where it is not practical to use an electrically non-conductive acoustic tube, then other

means of connecting the receiver output to an audio distortion meter or other measuring equipment shall

be provided and recorded in the test report. Precautions shall be taken to ensure that any effect on the

For non-speech equipment the output of the receiver shall be coupled via an electrically non-conductive

means to the test equipment outside the test environment. If the equipment has an output connector or

port providing the receiver output then this port shall be used via a cable, consistent with the standard

cable used in normal operation, connected to the test equipment outside the test environment. The test

equipment may be supplied by the manufacturer. Precautions shall be taken to ensure that any effect on

The exclusion band for receivers and receivers of transceivers is the frequency range determined by the

- the lower frequency of the exclusion band is the lower frequency of the switching range, minus 5 %

of the centre frequency of the switching range, or minus 10 MHz, whichever will result in the lowest

- the upper frequency of the exclusion band is the upper frequency of the switching range, plus 5 %

of the centre frequency of the switching range, or plus 10 MHz, which ever will result in the highest

The switching range is the maximum frequency range over which the receiver can be operated without

The exclusion band for transmitters extends ± 25 kHz from the nominal operating frequency of the

Responses on receivers or receivers of transceivers occurring during the test at discrete frequencies

which are narrow band responses (spurious responses) are identified by the following method.

If during the test an unwanted signal creates a degradation of the audio or data output, it is necessary to

establish whether the degradation is due to a narrow band response or to a wide band phenomena.

Therefore, the unwanted signal frequency is increased by an amount equal to twice the bandwidth of the

receiver IF filter immediately preceding the demodulator, as declared by the manufacturer. The test is

If the degradation disappears, then the response is considered as a narrow band response. If the

degradation remains, this may be due to the fact that the offset has made the frequency of the unwanted

signal correspond to the frequency of another narrow band response. Under these circumstances the

procedure is repeated with the increase and decrease of the frequency of the unwanted signal adjusted

If the degradation remains, the phenomena is considered wide band and therefore an EMC problem and

The manufacturer shall at the time of submission of the equipment for test, supply the following