This is the third edition of CAN/CSA-CISPR 22, Information technology equipment — Radio disturbance characteristics — Limits and methods of measurement, which is an adoption with Canadian deviations of the identically titled IEC (International Electrotechnical Commission) Standard CISPR (International Special Committee on Radio Interference) 22 (sixth edition, 2008-09). It supersedes the previous edition, published in 2002 as CAN/CSA-CEI/IEC CISPR 22 (adopted CEI/IEC CISPR 22:1997). This Standard establishes the limits and methods of measurement of conducted and radiated electromagnetic emissions from information technology equipment. The intent of this Standard is to limit conducted and radiated emissions from equipment for the protection of radio services and allow other apparatus to operate as intended at a reasonable distance. This third edition includes additional limits and methods of measurement for radiated emissions between 1 GHz and 6 GHz. A transition period is required before Industry Canada’s Interference Causing Equipment Standard (ICES-003 Digital Apparatus) introduces the new radiated emissions between 1 GHz and 6 GHz as a mandatory requirement. The CSA Subcommittee on Electromagnetic Compatibility recommends a transition period of at least one to two years beyond the initial publication date of this CSA Standard. The actual implementation date will be defined by Industry Canada in a future revision of ICES-003. For requirements in effect, see Industry Canada’s ICES-003. This Standard was reviewed for Canadian adoption by the CSA Subcommittee on Electromagnetic Compatibility of Information Technology Equipment, Multimedia Equipment, and Receivers, under the jurisdiction of the CSA Technical Committee on Electromagnetic Compatibility and the Strategic Steering Committee on Power Engineering and Electromagnetic Compatibility, and has been formally approved by the Technical Committee. This Standard has been approved as a National Standard of Canada by the Standards Council of Canada. Scope and object This International Standard applies to ITE as defined in 3.1. Procedures are given for the measurement of the levels of spurious signals generated by the ITE and limits are specified for the frequency range 9 kHz to 400 GHz for both class A and class B equipment. No measurements need be performed at frequencies where no limits are specified. The intention of this publication is to establish uniform requirements for the radio disturbance level of the equipment contained in the scope, to fix limits of disturbance, to describe methods of measurement and to standardize operating conditions and interpretation of results.

CSA CISPR 22 : 2010