ISO/TS 21609:2014
(Main)Road vehicles — (EMC) guidelines for installation of aftermarket radio frequency transmitting equipment
Road vehicles — (EMC) guidelines for installation of aftermarket radio frequency transmitting equipment
ISO/TS 21609:2014 gives requirements and recommendations for the installation in road vehicles of radio frequency (RF) transmitting and receiving equipment, "in-road-vehicle" mounting kits for transportable and hand-held RF equipment, and ancillary equipment associated with these. As well as methods for installation, it establishes methods for minimizing the possibility of electromagnetic interference (EMI) between the installed equipment and the vehicle electrical and electronic systems.
Véhicules routiers — Guide sur la compatibilité électromagnétique (CEM) pour l'installation en seconde monte d'équipements radio-téléphone
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TECHNICAL ISO/TS
SPECIFICATION 21609
Second edition
2014-04-15
Road vehicles — (EMC) guidelines
for installation of aftermarket radio
frequency transmitting equipment
Véhicules routiers — Guide sur la compatibilité électromagnétique
(CEM) pour l’installation en seconde monte d’équipements radio-
téléphone
Reference number
©
ISO 2014
© ISO 2014
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Published in Switzerland
ii © ISO 2014 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 General . 2
4.1 Customer liaison and installation requirements . 3
5 Installation . 7
5.1 Installation process . 7
5.2 Antenna . 7
5.3 Antenna cable . 9
5.4 Installation of radio equipment . 9
6 Test and final inspection .11
6.1 Antenna basic checks .11
6.2 Test calls.11
6.3 Disturbance checks .12
Bibliography .13
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical
and electronic equipment.
This second edition cancels and replaces the first edition (ISO/TS 21609:2003), which has been
technically revised.
iv © ISO 2014 – All rights reserved
TECHNICAL SPECIFICATION ISO/TS 21609:2014(E)
Road vehicles — (EMC) guidelines for installation of
aftermarket radio frequency transmitting equipment
1 Scope
This Technical Specification gives requirements and recommendations for the installation in road
vehicles of
— radio frequency (RF) transmitting and receiving equipment,
— “in-road-vehicle” mounting kits for transportable and hand-held RF equipment, and
— ancillary equipment associated with these.
As well as methods for installation, it establishes methods for minimizing the possibility of
electromagnetic interference (EMI) between the installed equipment and the vehicle electrical and
electronic systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable to its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050 (all parts), International Electrotechnical Vocabulary (IEV)
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050 (all parts) and the
following terms, definitions and abbreviated terms apply.
3.1.1
mobile equipment
receiver, transmitter or transmitter/receiver (transceiver) that is intended for installation and use in a
vehicle, and powered by the main battery of the vehicle
3.1.2
ancillary equipment
any equipment required as part of the installation in addition to the radio
EXAMPLE Voltage converter
3.1.3
equipment supplier
supplier of the equipment to the installer
Note 1 to entry: The equipment supplier may be a dealer, distributor or manufacturer.
3.1.4
floating system
isolated ground return
3.1.5
ground plane
conducting plane of a minimum dimension proportional to the wavelength λ on which a panel mount
antenna is fitted
3.1.6
installer
radio equipment installation technician
3.1.7
radiating element
part of an antenna which radiates the signal
3.1.8
vehicle supplier
supplier of the vehicle, who may be a dealer or the manufacturer/importer of the vehicle
3.2 Abbreviated terms
ABS anti-blocking system
CB citizen band
ECU electronic control unit
EMC electromagnetic compatibility
EMI electromagnetic interference
HT high tension (i.e. the high voltage circuits of the ignition system)
ICE in-car entertainment
PMR private mobile radio
RF radio frequency
RFI radio frequency interference
VSWR voltage standing wave ratio
4 General
Installation of RF-transmitting equipment shall be performed by competent personnel. The vehicle and
RF transmitting equipment manufacturers’ instruction manuals and installation notes shall be followed.
NOTE Vehicle manufacturer’s instructions take priority in case of conflict.
It is the responsibility of the competent personnel to ensure the installation complies with national legal
requirements for the installation and use of RF equipment in vehicles.
Installation shall be checked for possible interference between the RF-transmitting equipment and the
vehicle electric systems in accordance with 6.3.
2 © ISO 2014 – All rights reserved
4.1 Customer liaison and installation requirements
4.1.1 General
The customer shall
— be advised to use a suitable antenna for the particular application and optimum position,
— be made aware of the various fixing locations and mounts available for the items to be fitted, and
— be asked whether or not an ignition switched supply to the equipment is required.
4.1.2 EMC requirements
After-market RF-transmitting equipment for installation in road vehicles shall fulfil the requirements of
RF-product relevant EMC standards and road vehicle standards. Contact the road vehicle manufacturer
and/or equipment supplier if necessary to ensure that the latest version is used.
The purpose of road vehicle EMC standards (see Table 1) and legal requirements (Table 2) is to ensure
— the protection of broadcast receivers in a residential environment from radio disturbances from
vehicles at distances greater than 10 m,
— that vehicle RF-receivers have sufficient protection from unwanted emissions of other electric
systems (RF-systems included) installed in the same vehicle, and
— that no vehicle functions are affected because of the susceptibility of RF-systems to radiated or
conducted disturbances.
Table 1 — ISO and IEC/CISPR EMC and RFI standards for road vehicles
Standard Title
ISO 7637 (all parts) Road vehicles — Electrical disturbances from conduction and coupling
ISO 10605 Road vehicles — Test methods for electrical disturbances from electrostatic discharge
ISO 11451 Road vehicles — Vehicle test methods for electrical disturbances from narrowband radiated
electromagnetic energy
ISO 11452 Road vehicles — Component test methods for electrical disturbances from narrowband radi-
ated electromagnetic energy
ISO 13766 Earth-moving machinery — Electromagnetic compatibility
ISO 14982 Agricultural and forestry machinery — Electromagnetic compatibility — Test methods and
acceptance criteria
CISPR 12 Vehicles, boats and internal combustion engines — Radio disturbance characteristics — Lim-
its and methods of measurement for the protection of off-board receivers
CISPR 25 Vehicles, boats and internal combustion engines — Radio disturbance characteristics — Lim-
its and methods of measurement for the protection of on-board receivers
Table 2 — Selection of EMC regulations for vehicles and equipment
Standard Title
ECE-R 10 Agreement concerning the adoption of uniform technical prescriptions for wheeled
vehicles, equipment and parts which can be fitted and/or be used on wheeled vehicles
and the conditions for reciprocal recognition of approvals granted on the basis of these
prescriptions
Uniform provisions concerning the approval of vehicles with regard to electromagnetic
compatibility
1999/5/EC Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on
radio equipment and telecommunications terminal equipment and the mutual recogni-
tion of their conformity
ECE-R 116 Agreement concerning the Adoption of Uniform Technical Prescriptions for Wheeled
Vehicles, Equipment and Parts which can be Fitted and/or be Used on Wheeled Vehicles
and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these
Prescriptions
Uniform technical prescriptions concerning the protection of motor vehicles against
unauthorised use
CFR Title 47 Part 15 Telecommunication, Radio Frequency Devices
In addition to vehicle standards, RF-product specific EMC standards (see Table 3) are designed to ensure
that
— the RF-system operates in environments specified in the applicable radio EMC standard, and
— unwanted emissions are controlled to a specific level.
4.1.3 Vehicle supplier’s warranty
Installation of mobile radio equipment to any part of the vehicle, other than an authorized connection or
mounting location, might invalidate the vehicle warranty. If in doubt, the vehicle or equipment supplier
shall be consulted.
4.1.4 Electromagnetic and radio frequency interference
Full consideration shall be given to the positioning of mobile RF-transmitting equipment such that
electromagnetic interference (EMI) and radio frequency interference (RFI) is minimized between the
RF transmitting equipment being installed and the vehicle electrical and electronic systems.
Mobile equipment might include radio equipment, ancillary eq
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