ACdesign's Profile

Display Name: ACdesign
Member Since: 10/18/10

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As an electrical engineer who did a lot of EMF related design, this is the physics of electro magnetic wave : if a part is fully enclosed in a metallic barrier, then EMF cannot go in and out of the metallic enclosure. Realistically, if the part is enclosed in a 50+% metal barrier, then the reception will be affected. If the metal back is somehow in contact with the band attenna, it will only increase the attenna's reception ability. So either way, the metallic back is safe to use


Add a Metal Back to Your iPhone 4
10/18/10 02:48 PM