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What are some common sources of radiated interference?

April 26, 2017common interference radiated sources

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What are some common sources of radiated interference?

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The most common offender in the radiation of EMI is the electrical power cord of the electronic device itself. Since the powercord can act as an antenna, conducted EMI can also become radiated interference.

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The most common offender in the radiation of EMI is the ac power cord of the electronic device itself. This phenomenon is not limited to ac powered devices; it may be seen on the electronic conductors of dc devices as well. Any conducted interference generated by an electronic device may be radiated by the power cord, or unit wiring, if the conductor length is close to 25% of the wavelength of the offending signal.