Long Description: Internal components of a cell phone including the transmitter and antenna, that are sources of EM interference.

http://www.howstuffworks.com/cell-phone-radiation1.htm

Cell Phone Electronics

• Display

• Keyboard

• Battery

• Circuit board

Sources of Interference: Microphone vs Telecoil

Sources of Magnetic Interference to Telecoil Only

Source of EM Interference to Microphone and Telecoil

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