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Radiated emissions and susceptibility requirements imposed in bands where intentional RF reception or transmission does not occur is problematical. It is often desired to compare radiated emissions with radiated susceptibility performance to assess system level compatibility. For both theoretical and practical measurement limitations, this is not realistic. A limit and test method are proposed which work around the present limitations and provide direct comparison of radiated emissions and radiated susceptibility performance, in those cases where only unintentional emissions and reception are of interest (nontunable electronics).

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Radiated emissions and susceptibility requirements imposed in bands where intentional RF reception or transmission does not occur is problematical. It is often desired to compare radiated emissions with radiated susceptibility performance to assess system level compatibility. For reasons purely theoretical and because of practical measurement limitations, this is not realistic. McCollum and Clark[ 11 proposed a limit and test method that provided a direct comparison of radiated emissions and radiated susceptibility p e r f o m c e in those cases where only unintentional emissions and reception are of interest (nontunable electronics). This test method, referred to as bulk current emissions (BCE) testing, and its associated limit is a complimentary test method to bulk current injection testing and radiated susceptibility testing. Previous work utilized victim and culprit circuits with low common-mode loop impedance. Forward work identified in this publication was to determine how different loop impedance on culprit and victim circuits affected cable-to-cable coupling and the corresponding BCE test limit. Cable coupling factors for victim and culprit circuits with different loop impedance are investigated.

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