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Definition: smartphone radios


There are five transmission systems in modern smartphones as follows. See smartphone.

   System      Direction       Transmission

   Cellular  Transmit/Receive   Radio (RF)

   Wi-Fi     Transmit/Receive   Radio (RF)

   Bluetooth Transmit/Receive   Radio (RF)

   GPS       Receive            Radio (RF)

   NFC       Transmit/Receive   Magnetic