IEEE/ANSI C63.4:1988

New IEEE Standard - Superseded.
Uniform methods of measurement of radio noise emitted from low-voltage electrical and electronic equipment, including digital and other information technology equipment, in the frequency range of 9 kHz to 40 GHz are set forth. Both unintentional and certain intentional radiators are included. Methods for the measurement of radiated and powerline conducted radio noise are covered and may be applied to any such equipment unless otherwise specified by individual equipment requirements.

This standard sets forth uniform methods of measurement of radio noise emitted from low voltage electrical and electronic equipment in the frequency range of 10 kHz to 1 GHz. Methods for the measurement of radiated and power-line conducted radio noise are covered and may be applied to any such equipment unless otherwise specified by individual equipment requirements.
These methods apply to the measurement of individual components, units, or systems comprising components and units. Additional methods may be added to this standard to fulfill future requirements as needed. Unless specifically called out, this standard is not intended for certification or approval of avionic equipment. The method for validation of test sites such as open area sites and absorber-lined chambers for frequencies in the range of 30 MHz-1000 MHz is contained in this standard.