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Topic: CISPR

	CISPR
		CISPR standard are oriented primarily toward electromagnetic emissions and electromagnetic emissions measurements.
		This is one of the more-well known standards in the CISPR family.
		CISPR is actively working on several standards both in generating new ones and revising existing standards.
	www.cclab.com /cispr.htm (485 words)

	NTIA: Office of Spectrum Management
		The International Special Committee on Radio Interference (CISPR) was established in 1934 by a group of international organizations to address radio interference.
		CISPR is a non-governmental group composed of National Committees of the International Electrotechnical Commission (IEC), as well as numerous international organizations.
		NTIA's primary interest in CISPR currently lies in the development of emission limits to protect radiocommunication equipment, which is the focus of Subcommittee H.
	www.ntia.doc.gov /osmhome/international/cispr.html (138 words)

	List of EMC directives - Wikipedia, the free encyclopedia
		CISPR 12, Vehicles, boats and internal combustion engine driven devices - Radio disturbance characteristics - Limits and methods of measurement for the protection of receivers except those installed in the vehicle/boat/device itself or in adjacent vehicles/boats/devices.
		CISPR 16-1, Specification for radio disturbance and immunity measurement apparatus and methods - Part 1: Radio disturbance and immunity measuring apparatus
		CISPR 16-2, Specification for radio disturbance and immunity measurement apparatus and methods - Part 2: Methods of measurement of disturbances and immunity
	en.wikipedia.org /wiki/List_of_EMC_directives (832 words)

	A Comparison of the First Three Editions of CISPR 22
		A comparison of the first and second editions of CISPR 22 (see sidebar) shows that all additional changes not covered in the CO papers are insignificant or irrelevant to the issue at hand.
		For radiated-disturbance measurements, receivers with peak detectors and passbands in accordance with Clauses 2 and 3 of CISPR 16-1 are permitted instead of QP detectors (introduction to Section 10 of the third edition).
		For example, a reference to CISPR 16 (1975) in the first edition was updated to the 1987 version in the second edition, and a reference to CCITT V.24 (1993) was added.
	www.ce-mag.com /archive/2000/novdec/roleson.html (3392 words)

	CISPR 22
		Equipment, for which all disturbance requirements in the frequency range are explicitly formulated in other IEC or CISPR publications, are excluded from the scope of this publication.
		Either the voltage limits or the current limits in table 3 or 4, as applicable, shall be met except for the measurement method of C.1.3 of CISPR 22 where both limits shall be met.
		If the average limit is met when using a quasi-peak detector receiver, the EUT shall be deemed to meet both limits and measurement with the average detector receiver is unnecessary.
	www.atlasce.com /requirements/cispr_22.htm (961 words)

	Practical Papers: The Quasi-Peak Detector
		CISPR Publication 1 was the specification for this radio-noise meter.
		Currently, CISPR radio-noise meters use the QP detector from 9 kHz to 1 GHz; and, there is discussion of extending it into the GHz frequency range.
		The dynamic range of the first CISPR meters was less than 15 dB, whereas the first Stoddart meters had a dynamic range of 40 dB.
	www.ieee.org /organizations/pubs/newsletters/emcs/summer01/pp.bronaugh.htm (1484 words)

	PlanetAnalog.com - EMI from the Ground Up: Maxwell to CISPR (Site not responding. Last check: 2007-11-06)
		This variation is referred to in the standards as an 'inverse linear distance extrapolation factor' of '20 dB per decade' (a decade of distance, not of frequency or amplitude!).
		CISPR 22 also says that if the ambient noise levels are too high at 10m, we can do the measurement at 3m, and basically add 10.5 dB uniformly to the 10m limits.
		In fact even as of now, many of the big telecom equipment manufacturers, on their own volition, routinely comply with CISPR 22 limits on both the inputs and outputs of their telecom power supplies.
	www.planetanalog.com /printableArticle.jhtml?articleID=15201507 (4924 words)

	EMC Compliance Club – The new CISPR 16, its Structure and Contents and the Current Projects of CISPR Subcommittee ...
		CISPR Publication 16 is the basic standard for the measurement of radio disturbance in the frequency range of 9 kHz to 18 GHz.
		CISPR 16 was divided in three parts: 16-1:1993 with 220 pages, 16-2:1996 with 151 pages and 16-3:2000 with 239 pages.
		The measurement uncertainty caused by the influence factors effective in conducted and radiated emission measurements and in measurements using the absorbing clamp are described in CISPR 16-4-2.
	www.compliance-club.com /archive/print_article.asp?artid=51 (1967 words)

	Book Supply Bureau - Standards Online (Site not responding. Last check: 2007-11-06)
		This part of CISPR 16 is designated a basic standard, which specifies the characteristics and performance of equipment for the measurement of radio disturbance voltages, currents and fields in the frequency range 9 kHz to 18 GHz.
		This part of CISPR 16 is designated a basic standard, which specifies the characteristics and calibration of the absorbing clamp for the measurement of radio disturbance power in the frequency range 30 MHz to 1 GHz.
		This part of CISPR 16 is designated a basic standard, which specifies the methods of measurement of disturbance phenomena in general in the frequency range 9 kHz to 18 GHz and especially of conducted disturbance phenomena in the frequency range 9 kHz to 30 MHz.
	www.standardsindia.com /snbdec03.asp (11879 words)

	A Comparison of CNS 13438: 1997 and CISPR 22: 1993
		CNS 13438 is similar to CISPR 22: 1993 (Amendments 1 and 2), but some differences may affect achieving EMC approval of a product before it can be marketed in Taiwan (Republic of China).
		For ITE, CNS 13438 and CISPR 22 both specify limits at a distance of 10 m for Class A and for Class B equipment.
		Sections 7 and 12 of CISPR 22 provide the disturbance power requirements that are currently under consideration.
	www.ce-mag.com /archive/1999/novdec/Lin.html (1134 words)

	[No title]
		We note that the standards contained in CISPR Publication 22 (1997) on the amount of energy allowed to be conducted onto the public utility (AC) power lines or radiated from a device are the same as those contained in CISPR Publication 22 (1985) as amended by the 1992 Draft International Standards.
		Thus, amending the rules to reference CISPR Publication 22 (1997) would not result in a change to the regulations and would simplify the task of obtaining copies of this publication.
		We also note that the existing references within the Commission’s rules to the CISPR Publication 22 standards apply only to the levels of emissions conducted onto AC power lines and to the levels of emissions radiated from a digital device.
	www.fcc.gov /ftp/Bureaus/Engineering_Technology/Orders/2001/da010446.doc (820 words)

	Products -- LISN's (Site not responding. Last check: 2007-11-06)
		The model FCC-LISN-50-25-2 is produced in accord with the required schematic of CISPR 16-1 and meets the frequency requirements.
		The impedance versus frequency curve of this LISN is superimposed on the impedance curve of for the 50Ω50 µH configuration.
		CISPR 16-1 defines this LISN as 50Ω50 µH + 5 W. This type of LISN is often used when testing equipment with switch mode power supplies.
	www.fischercc.com /instrumentation/product_lisns.shtml (941 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		CISPR 22 deals with the requirements for radiated and conducted emissions for Information Technology Equipment (equipment that transmits/receives digital data via wire).
		Measurement techniques given in CISPR 22 for conducted common mode emissions testing on AC Mains and telecommunications cables have been an ongoing source of concern and confusion.
		He has been supporting the CISPR I and A Subcommittees in the areas of application and calibration of ISNs, ferrite clamps and capacitive voltage probes, as well as the development of non-invasive test techniques.
	www.ieee-seattle.org /emc0403.html (411 words)

	IHS - BS EN 55022:1998 CISPR 22:1997 - Information technology equipment -Radio disturbance characteristics -Limits and ... (Site not responding. Last check: 2007-11-06)
		The combined text of edition 3 of CISPR 22, the common modifications in amendment A2:1997 to EN 55022:1994 and those for CISPR/G/121/FDIS were approved by CENELEC as EN 55022 on 1998-08-01.
		In this standard, Annex A, Annex B, Annex C and Annex ZA are normative and Annex D and Annex E are informative.
		Foreword to amendment A1 The text of document CISPR/G/177/FDIS, future amendment 1 to CISPR 22:1997, prepared by CISPR SC G, Interference relating to information technology equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 55022:1998 on 2000-08-01.
	engineers.ihs.com /abstracts/bs-en-55022.jsp (1064 words)

	Appendix 3 (Site not responding. Last check: 2007-11-06)
		The aims of the CISPR (the International Special Committee on Radio Interference) are to promote international agreement on the aspects of radio interference set out hereafter, thereby facilitating international trade.
		These standards appear in the "Official Journal" from CISPR (for equipment not to cause interference) or from IEC Technical Committee (TC) 77 (for equipment to be resilient to interference).
		This is carried out by one of the CISPR Committees, typically within a Task Group or Working Group, to produce a Committee Draft (CD) to go to National Committees.
	www.ursi.org /SCT_App3.htm (635 words)

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