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Chapter 11. Communicating Wirelessly wit... > Enable and Disable Bluetooth

Enable and Disable Bluetooth

Similar to the mobile radio that sends and receives wireless voice and data on your Treo, there's a Bluetooth radio that is responsible for wireless communication via Bluetooth. Also like the mobile radio, you can turn the Bluetooth radio on and off whenever you want. The Bluetooth radio has an impact on your device's battery charge, so that's one reason you might consider not leaving the Bluetooth radio on all the time. Another reason has to do with security, which you learn about later in the chapter in the section “Assessing Bluetooth Security Issues.”

Note

The only immediate competitor to Bluetooth is Infrared Data Association (IrDA), which is the infrared technology often found on notebook and handheld computers that enables you to communicate wirelessly with another computer or printer. Although IrDA currently enjoys a much larger install base than Bluetooth, the tide is rapidly turning. The major drawback to IrDA is that it requires a clear line of sight and a distance of no more than about a meter between the two devices that are communicating. Compare this to Bluetooth, which requires no line of sight and a communication distance typically in the 10-meter range.



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