GB 18655-2002
Limits and methods of measurement of radio disturbance characteristics for the protection of receivers used on board vehicles (English Version)

Standard No.

GB 18655-2002

Language

Chinese, Available in English version

Release Date

2002

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2011-06

Replace By

GB/T 18655-2010

Latest

GB/T 18655-2018

Scope

This standard specifies the radio disturbance limits D and measurement methods in the frequency range from 150 kHz to 1 000 MHz. This standard applies to any electronic/electrical components used in vehicles and large installations. Details of frequency distributions in this standard are referred to International Telecommunication Union (ITU) publications. The limits in this standard are used to protect vehicle-mounted receivers from disturbances generated by components/modules in the same vehicle. The second part provides the measurement method and limit value of the whole vehicle, and the third part provides the measurement method and limit value of the component/module. The types of receivers requiring protection are: sound and television receivers, land mobile communications, radiotelephony, amateur and civilian radio equipment. A vehicle in this standard is a self-propelled machine. Vehicles include, but are not limited to, passenger cars, trucks, farm tractors, and snowmobiles. ' The limits of this standard can be selected by agreement between the vehicle manufacturer and the component supplier. The application objects of this standard are automobile manufacturers and suppliers of automotive electronic and electrical components. This standard does not cover the protection of electronic control systems from radio frequency (rF) emissions, transient voltage, impulse voltage fluctuations. These are covered in IS0 publications. Since the installation location, vehicle body structure and wiring harness design will affect the coupling of radio disturbances to vehicle receivers, the third part of this standard defines various limit levels. The limit level used (as a function of the frequency band) needs to be agreed by the car manufacturer and the component supplier. In 1979, the World Regulatory Radiocommunication Conference (WARC) lowered the low frequency limit of the first region to l48.5kHz. For vehicles, a 150kHz test is sufficient. In this standard, the test frequency range has covered radio service frequencies all over the world. It is expected that in most cases radio reception on adjacent frequencies will be protected. It was inferred that if the limits for service frequencies above 30 MHz were observed, it would be likely to provide protection for service frequencies below 30 MHz.

GB 18655-2002 history

• 2018 GB/T 18655-2018 Vehicles, boats and internal combustion engines—Radio disturbance characteristics—Limits and methods of measurement for the protection of on-board receivers
• 2010 GB/T 18655-2010 Vehicles,boats and internal combustion engines.Radio disturbance characteristics.Limits and methods of measurement for the protection of on-board receivers
• 2002 GB 18655-2002 Limits and methods of measurement of radio disturbance characteristics for the protection of receivers used on board vehicles

GB 18655-2002 Limits and methods of measurement of radio disturbance characteristics for the protection of receivers used on board vehicles was changed to GB/T 18655-2010 Vehicles,boats and internal combustion engines.Radio disturbance characteristics.Limits and methods of measurement for the protection of on-board receivers.