IEEE Std C63.4-2009 American National Standard for Methods of Measurement of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz
This standard specifies U.S. consensus standard methods, instrumentation, and facilities for measurement
of radio-frequency (RF) signals and noise emitted from electrical and electronic devices in the frequency
range 9 kHz to 40 GHz. It does not include generic nor product-specific emission limits. Where possible,
the specifications herein are harmonized with other national and international standards used for similar
purposes.
Uses of the word shall in this standard indicate a mandatory requirement that must be met to satisfy this
standard. The word should is used to indicate that a requirement is recommended but not mandatory.
Tolerances on dimensions and distances are based on good engineering practice where not specified. The
word may is used to indicate a recommendation that is at the discretion of the user. In addition, notes in this
document are informative and are not part of the requirements. In this standard, the text takes precedence
over the figures because the text is complete and the figures are illustrative of a typical application of the
text. Notes are used in the text for emphasis or to offer informative suggestions about the technical content
of the standard, and these notes provide additional information to assist the reader with a particular passage
but do not include mandatory requirements. Footnotes in text are included only for information,clarification, and/or aid applicable to the use of the standard, but mandatory requirements are not included
in text footnotes.
Measurement methods are included for radiated and line-conducted emissions that can be generated by a
variety of devices, as described in 1.2. Definitions are provided for terms and phrases contained in the text,
in which the words do not represent obvious or common usage. Measurement instrumentation, facilities,
and test sites are specified and characterized, including open-area test sites (OATS) and RF absorber-lined,
metal chambers used for radiated emission measurement. Transverse electromagnetic (TEM) wave devices
used for radiated emission measurement are treated in normative Annex F. The requirements of Annex F,
when such tests are performed, shall take precedence in this standard. In most cases, measurement
instrumentation and calibration requirements are only generally characterized in deference to standards
dedicated to these subjects, which should be used in conjunction with this standard. The requirements for
operation of test samples during measurements are presented for devices in general, as well as for specific
types of devices that are frequently measured. Specific requirements for emission test data recording and
reporting are presented with reference to general requirements contained in documents dedicated to
standard laboratory practices, which should be used in conjunction with this standard. The main text is
augmented by a series of annexes that provide details for certain measurement methods and facilities.
Annex A provides an index of main text clauses to be used when testing particular equipment under test
(EUT) types.
IEEE Std C63.4-2009 history
2014IEEE Std C63.4-2014 American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz
2009IEEE Std C63.4-2009 American National Standard for Methods of Measurement of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz
2003IEEE Std C63.4-2003 Methods of measurement of radio-noise emissions from low-voltage electrical and electronic equipment in the range of 9 kHz to 40 GHz
2001IEEE C63.4-2001 American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz (Revision of ANSI C63.4-1992)
2000IEEE Std C63.4-2000 Methods of measurement of radio-noise emissions from low-voltage electrical and electronic equipment in the range of 9 kHz to 40 GHz
1992IEEE Std C63.4-1992 Methods of measurement of radio-noise emissions from low-voltage electrical and electronic equipment in the range of 9 kHz to 40 GHz
1991IEEE C63.4-1991 METHODS OF MEASUREMENT OF RADIO-NOISE EMISSIONS FROM LOW-VOLTAGE ELECTRICAL AND ELECTRONIC EQUIPMENT IN THE RANGE OF 9 KHZ TO 40 GHZ; CORRECTION SHEET - 1991
1988IEEE C63.4-1988 ELECTROMAGNETIC COMPATIBILITY - RADIO- NOISE EMISSIONS FROM LOW-VOLTAGE ELECTRICAL AND ELECTRONIC EQUIPMENT IN THE RANGE OF 10 KHZ TO 1 GHZ - METHODS OF MEASUREMENT
1970IEEE Std C63.4-1981 American National Standard methods of measurement of readio-noise emissions from low-voltage electrical and electronic equipment in the range of 10 kHz to 1 GHz