CISPR 22:2008

FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Definitions
4 Classification of ITE
   4.1 Class B ITE
   4.2 Class A ITE
5 Limits for conducted disturbance at mains terminals and
   telecommunication ports
   5.1 Limits of mains terminal disturbance voltage
   5.2 Limits of conducted common mode (asymmetric mode)
        disturbance at telecommunication ports
6 Limits for radiated disturbance
   6.1 Limits below 1 GHz
   6.2 Limits above 1 GHz
7 Interpretation of CISPR radio disturbance limit
   7.1 Significance of a CISPR limit
   7.2 Application of limits in tests for conformity of
        equipment in series production
8 General measurement conditions
   8.1 Ambient noise
   8.2 General arrangement
   8.3 EUT arrangement
   8.4 Operation of the EUT
9 Method of measurement of conducted disturbance at
   mains terminals and telecommunication ports
   9.1 Measurement detectors
   9.2 Measuring receivers
   9.3 Artificial mains network (AMN)
   9.4 Ground reference plane
   9.5 EUT arrangement
   9.6 Measurement of disturbances at telecommunication
        ports
   9.7 Recording of measurements
10 Method of measurement of radiated disturbance
   10.1 Measurement detectors
   10.2 Measuring receiver below 1 GHz
   10.3 Antenna below 1 GHz
   10.4 Measurement site below 1 GHz
   10.5 EUT arrangement below 1 GHz
   10.6 Radiated emission measurements above 1 GHz
   10.7 Recording of measurements
   10.8 Measurement in the presence of high ambient signals
   10.9 User installation testing
11 Measurement uncertainty
Annex A (normative) Site attenuation measurements of
        alternative test sites
Annex B (normative) Decision tree for peak detector
        measurements
Annex C (normative) Possible test set-ups for common mode
        measurements
Annex D (informative) Schematic diagrams of examples of
        impedance stabilization networks (ISN)
Annex E (informative) Parameters of signals at
        telecommunication ports
Annex F (informative) Rationale for disturbance
        measurements and methods on telecommunications
        ports
Annex G (informative) Operational modes for some types of
        ITE
Bibliography

CISPR 22:2008 is available as CISPR 22:2008 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

CISPR 22:2008 applies to information technology equipment (ITE). 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. This sixth edition of CISPR 22 cancels and replaces the fifth edition published in 2005, its Amendment 1 (2005) and Amendment 2 (2006). This edition constitutes a minor revision.