CISPR 25:2002/ISH1:2007

Publication CISPR 25 (Second edition – 2002) I-SH 01

Radio disturbance characteristics for the protection of receivers used on board

vehicles, boats, and on devices – Limits and methods of measurement

INTERPRETATION SHEET
This interpretation sheet has been prepared by CISPR subcommittee D: Electro-magnetic

disturbances related to electric/electronic equipment on vehicles and internal combustion
engine powered devices.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
CISPR/D/335/ISH CISPR/D/338/RVD

Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
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There is a specific need for standards to define acceptable radio frequency performance of all
electrical/electronic products. CISPR 12 and CISPR 25 have been developed to serve the
road vehicle and related industries with test methods and limits that provide satisfactory
protection for radio reception.
CISPR 12 has been used for many years as a regulatory requirement in numerous countries,
to provide protection for radio receivers in the residential environment. It has been extremely
effective in protecting the radio environment outside the vehicle.
CISPR 25 controls the radio environment within the vehicle and was developed in response to
the variety of radio receivers that can be installed and/or used in modern motor vehicles. The
Subcommittee holds the view that interference to on-board radio reception caused by
equipment on the same vehicle is a quality, or customer satisfaction issue, rather than a
matter fo
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