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Council Directive 72/245/EEC (repealed)Show full title
Council Directive 72/245/EEC of 20 June 1972 relating to the radio interference (electromagnetic compatibility) of vehicles (repealed)
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Changes over time for: ANNEX IV
Version Superseded: 01/11/2014
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EU Directives are published on this site to aid cross referencing from UK legislation. Since IP completion day (31 December 2020 11.00 p.m.) no amendments have been applied to this version.
[F1ANNEX IV U.K. METHOD OF MEASUREMENT OF RADIATED BROADBAND ELECTROMAGNETIC EMISSIONS FROM VEHICLES
Textual Amendments
F1 Substituted by Commission Directive 2004/104/EC of 14 October 2004 adapting to technical progress Council Directive 72/245/EEC relating to the radio interference (electromagnetic compatibility) of 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 (Text with EEA relevance).
1. General U.K.
1.1. The test method described in this Annex shall only be applied to vehicles. U.K.
1.2. Test method U.K.
This test is intended to measure the broadband emissions generated by electrical or electronic systems fitted to the vehicle (e.g. ignition system or electric motors).
If not otherwise stated in this Annex the test shall be performed according to CISPR 12 (5th edition 2001).
2. Vehicle state during tests U.K.
2.1. Engine U.K.
The engine shall be in operation according to CISPR 12 (5th edition 2001) clause 5.3.2.
2.2. Other vehicle systems U.K.
All equipment capable of generating broadband emissions which can be switched on permanently by the driver or passenger should be in operation in maximum load, e.g. wiper motors or fans. The horn and electric window motors, etc., are excluded because they are not used continuously.
3. Test requirements U.K.
3.1. The limits apply throughout the frequency range 30 to 1 000 MHz for measurements performed in a semi anechoic chamber or an outdoor test site. U.K.
3.2. Measurements can be performed with either quasi-peak or peak detectors. The limits given in Annex I, paragraphs 6.2 and 6.5 are for quasi-peak detectors. If peak detectors are used a correction factor of 20 dB as defined in CISPR 12 (5th edition 2001) shall be applied. U.K.
3.3. Measurements U.K.
The technical service shall perform the test at the intervals specified in the CISPR 12 (5th edition 2001) standard throughout the frequency range 30 to 1 000 MHz.
Alternatively, if the manufacturer provides measurement data for the whole frequency band from a test laboratory accredited to the applicable parts of ISO 17025 (1st edition 1999) and recognised by the Approval Authority, the technical service may divide the frequency range in 14 frequency bands 30-34, 34-45, 45-60, 60-80, 80-100, 100-130, 130-170, 170-225, 225-300, 300-400, 400-525, 525-700, 700-850, 850- 1 000 MHz and perform tests at the 14 frequencies giving the highest emission levels within each band to confirm that the vehicle meets the requirements of this Annex.
In the event that the limit is exceeded during the test, investigations shall be made to ensure that this is due to the vehicle and not to background radiation.
3.4. Readings U.K.
The maximum of the readings relative to the limit (horizontal and vertical polarisation and antenna location on the left and right-hand sides of the vehicle) in each of the 14 frequency bands shall be taken as the characteristic reading at the frequency at which the measurements were made.]
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