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How does a shielded window work?

April 26, 2017shielded window

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How does a shielded window work?

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First and foremost, the purpose of a shielded window is to be able to see through it to the display behind. The emi shielding element acts in two ways. Depending on the frequency the wire mesh or conductive coating absorbs and conducts the interference signal. The effectiveness of the shield, measured in dB, is determined by testing the level of the signal passing through the aperture both before and after fitting the shield and taking the difference.