ISO/TS 21609:2003
(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 21609:2003 gives requirements and recommendations for the installation in road vehicles of radio frequency transmitting and receiving equipment, "in-road-vehicle" mounting kits for transportable and handheld 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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Standards Content (Sample)
TECHNICAL ISO/TS
SPECIFICATION 21609
First edition
2003-10-15
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/TS 21609:2003(E)
©
ISO 2003
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ISO/TS 21609:2003(E)
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ii © ISO 2003 — All rights reserved
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ISO/TS 21609:2003(E)
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of normative document:
an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
ISO/TS 21609 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronic equipment.
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TECHNICAL SPECIFICATION ISO/TS 21609:2003(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 handheld 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 referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
IEC 60050, International Electrotechnical Vocabulary (IEV)
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms and definitions given in IEC 60050 and the following terms,
definitions and abbreviated terms apply.
3.1 Definitions
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 The equipment supplier could be a dealer, distributor or manufacturer.
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ISO/TS 21609:2003(E)
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 could 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.
The installation shall comply 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.
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ISO/TS 21609:2003(E)
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 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 Road vehicles — Electrical disturbances by 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 radiated
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, motorboats and spark-ignited engine-driven devices — Radio disturbance
characteristics — Limits and methods of measurement
CISPR 25 Radio disturbance characteristics for the protection of receivers used on board vehicles, boats,
and on devices — Limits and methods of measurement
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ISO/TS 21609:2003(E)
Table 2 — Selection of EMC regulations for vehicles and equipment
Standard Title
Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council
95/54/EC
Directive 72/245/EEC on the approximation of the laws of the Member States relating to the
suppression of radio interference produced by spark-ignition engines fitted to motor vehicles
and amending Directive 70/156/EEC on the approximation of the laws of the Member States
relating to the type-approval of motor vehicles and their trailers
ECE-R 10 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 recognition of
their conformity
ECE-R 97 Uniform provisions concerning the approval of vehicle alarm systems and of vehicles with
regard to their alarm systems
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, may 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 may include radio equipment, ancillary equipment, antenna and feeder cable.
4.1.5 Radio equipment and ancillary items
Prior to the installation of the radio equipment or any other ancillary items, it is essential that the vehicle
manufacturer’s and equipment supplier’s instructions be followed, in order to ensure that the safe operation of
the vehicle is not impaired.
Care shall be taken when planning the installation that any additional equipment used does not constitute a
safety hazard and does not contravene safety regulations.
Care shall be taken to ensure that any microphone/handset lead is not installed such that the lead can
interfere with the vehicle controls or driver.
Where a hand portable or transportable unit is installed in road vehicles, the correct car adapter kit specified
for the product shall be used.
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ISO/TS 21609:2003(E)
Table 3 — Selection of EMC product standards for RF-equipment
Standard Title
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-1
Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical
requirements
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-3 Compatibility (EMC) standard for radio equipment and services; Part 3: Specific conditions for
Short-Range Devices (SRD) operating on frequencies between 9 kHz and 40 GHz
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-5 Compatibility (EMC) standard for radio equipment and services; Part 5: Specific conditions for
Private land Mobile Radio (PMR) and ancillary equipment (speech and non-speech)
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-6 Compatibility (EMC) standard for radio equipment and services; Part 6: Specific conditions for
Digital Enhanced Cordless Telecommunications (DECT) equipment
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-7 Compatibility (EMC) standard for radio equipment and services; Part 7: Specific conditions for
mobile and portable radio and ancillary equipment of digital cellular radio telecommunications
systems (GSM and DCS)
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-12 Compatibility (EMC) standard for radio equipment and services; Part 12: Specific conditions for
Very Small Aperture Terminal, Satellite Interactive Earth Stations operated in the frequency
ranges between 4 GHz and 30 GHz in the Fixed Satellite Service (FSS)
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-13 Compatibility (EMC) standard for radio equipment and services; Part 13: Specific conditions for
Citizens' Band (CB) radio and ancillary equipment (speech and non-speech)
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-15 Compatibility (EMC) standard for radio equipment and services; Part 15: Specific conditions for
commercially available amateur radio equipment
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic
EN 301 489-16 Compatibility (EMC) standard for radio equipment and services; Part 16: Specific conditions for
analogue cellular radio communications equipment, mobile and portable
Draft Electromagnetic compatibility and Radio spectrum Matters (ERM); El
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