IEC 60489-6:1999

INTERNATIONAL IEC
STANDARD
60489-6
Third edition
1999-07
Radio equipment used in mobile services –
Methods of measurement –
Part 6:
Data equipment
Matériel de radiocommunication utilisé dans les services
mobiles – Méthodes de mesure –
Partie 6:
Matériel numérique
Reference number
Numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series.
Consolidated publications
Consolidated versions of some IEC publications including amendments are
available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the
base publication, the base publication incorporating amendment 1 and the base
publication incorporating amendments 1 and 2.
Validity of this publication
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology.
Information relating to the date of the reconfirmation of the publication is available
in the IEC catalogue.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is to be found at the following IEC sources:
• IEC web site*
•
Catalogue of IEC publications
Published yearly with regular updates
(On-line catalogue)*
• IEC Bulletin
Available both at the IEC web site* and as a printed periodical
Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International
Electrotechnical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols
for diagrams.
* See web site address on title page.

INTERNATIONAL IEC
STANDARD
60489-6
Third edition
1999-07
Radio equipment used in mobile services –
Methods of measurement –
Part 6:
Data equipment
Matériel de radiocommunication utilisé dans les services
mobiles – Méthodes de mesure –
Partie 6:
Matériel numérique
 IEC 1999  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
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International Electrotechnical Commission
For price, see current catalogue

– 2 – 60489-6 © IEC:1999(E)
CONTENTS
Page
FOREWORD . 4
Clause
1 General.5
1.1 Scope and object . 5
1.2 Emission characteristics.5
1.3 System characteristics.6
1.4 Normative references.7
2 Terms and definitions. 7
3 Test conditions.12
3.1 Standard test conditions. 12
3.2 Supplementary test conditions. 12
3.3 Characteristics of the measuring equipment . 18
4 Measurements of receiver-decoder radio-frequency parameters . 22
4.1 Sensitivity (data).22
4.2 Adjacent radio-frequency signal selectivity (data). 24
4.3 Co-channel interference rejection (data) . 28
4.4 Adjacent-channel selectivity (data) . 28
4.5 Spurious response immunity (data) . 28
4.6 Intermodulation immunity (data) . 32
4.7 Sensitivity under multipath propagation conditions (data) . 36
4.8 Acceptable radio-frequency displacement (data). 39
4.9 Impulsive-noise tolerance (data). 41
5 Measurements of receiver-decoder radio-frequency parameters (selective calling only). 45
5.1 Protection from radio-frequency intermodulation false operation (selective calling). 45
5.2 False responses due to noise (selective calling) . 46
5.3 Signalling attack time (selective calling) . 48
5.4 Recovery time (selective calling) . 48
5.5 Required protection time (selective calling). 49
5.6 Signal-to-residual output-power ratio (selective calling). 49
6 Measurements of receiver-decoder conducted and radiated spurious components . 50
6.1 Conducted spurious components (data and selective calling). 50
6.2 Radiated spurious components (data) . 51
7 Measurements of encoder-transmitters radio-frequency parameters . 51
7.1 Frequency error (data) . 51
7.2 Average radio-frequency output power (data) . 55
7.3 Spurious narrow bandwidth radio-frequency emission power (data). 56
7.4 Adjacent and alternate channel power (data) . 58
8 Audio-frequency band measurements of encoder output characteristics
(selective calling) . 6 5
8.1 Tone pulse-rise time (selective calling). 65
8.2 Tone pulse duration (selective calling). 65
8.3 Tone pulse-decay time (selective calling) . 66

60489-6 © IEC:1999(E) – 3 –
Clause Page
8.4 Frequency of tone(s) (selective calling) . 66
8.5 RMS voltage of tone(s) (selective calling) . 67
8.6 Encoder overall operate time (selective calling) . 67
9 Audio-frequency band measurements of decoder characteristics (selective calling). 68
9.1 Decoder operation level range (selective calling) . 68
9.2 Decoder attack time (selective calling) . 68
9.3 Decoder recovery time (selective calling). 68
9.4 Decoder required protection time (selective calling) . 69
9.5 Decoder alarm time (selective calling) . 69
10 Overall measurements in simulated systems (selective calling). 70
10.1 General.70
10.2 Supplementary conditions of measurement for system response times . 70
10.3 System overall operate time (selective calling). 70
10.4 System recovery time (selective calling) . 70
11 Measurements of receiver-decoder radio-frequency parameter (integral antenna) . 71
11.1 Radiation sensitivity (data) . 71
11.2 Selectivity (data).74
11.3 Acceptable radio-frequency displacement. 74
11.4 Impulsive-noise tolerance (integral antenna). 74
12 Measurements of encoder-transmitters radio-frequency parameters (integral antenna) . 75
12.1 Radiated radio-frequency power (data) . 75
Annex A (normative) Examples of combining networks. 89
Annex B (normative) Recommended characteristics of measuring equipment
and methods of test. 92
Annex C (normative) Rayleigh fading simulator . 94
Annex D (informative) Intermodulation response . 100
Annex E (normative) Accuracy and dispersion of methods of measurement and compliance
tests for sensitivity (data and selective calling) and degradation
measurements (data and selective calling) . 101
Annex F (normative) Mean time between false calling responses (M) (selective calling) . 133
Annex G (normative) General information on impulsive noise and random impulse
generator . 136
Annex H (informative) Example of a mains power line impedance stabilization network . 142
Annex I (informative) Measuring error of the occupied bandwidth centre frequency
using spectrum analyser. 145

– 4 – 60489-6 © IEC:1999(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
RADIO EQUIPMENT USED IN MOBILE SERVICES –
METHODS OF MEASUREMENT –
Part 6: Data equipment
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two organization.
2) The formal decisions or agreements of the IEC on technical matters express. as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
form all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extend possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60489-6 has been prepared by IEC technical committee 102:
Equipment used in radio communications for mobile services and for satellite communication
systems.
This third edition of IEC 60489-6 cancels and replaces the second edition, published in 1987,
amendment 1 (1989) and amendment 2 (1991). This third edition constitutes a technical
revision.
The text of this standard is based on the following documents:
FDIS Report on voting
102/44/FDIS 102/54/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
IEC 60489-6 forms one of a series of publications under the general title: Radio equipment
used in mobile services – Methods of measurement. Future standards in this series will carry
the new general title as cited above. Titles of existing standards in this series will be updated at
the time of the next revision.
Annexes A, B, C, E, F and G form an integral part of this standard.
Annexes D, H and I are for information only.
A bilingual version of this standard may be issued at a later date.

60489-6 © IEC:1999(E) – 5 –
RADIO EQUIPMENT USED IN MOBILE SERVICES –
METHODS OF MEASUREMENT –
Part 6: Data equipment
1 General
1.1 Scope and obj
...