| The networking standards of Bluetooth
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| | interfere with each other, although it's
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| will transmit data via low power radio
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| | very unlikely. Bluetooth utilizes a
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| frequency. Bluetooth communicates on a
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| | technique known as low frequency hopping,
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| 2.45 GHz frequency. This very band of
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| | which makes it harder for more than one
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| frequency has been set aside by
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| | device to transmit on the same frequency
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| international agreement for the use of
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| | at the same time.
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| industrial and medical devices.
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| | With this technique, a device will use 79
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| Many devices that you already known and
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| | individual, randomly chosen frequencies
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| use take advantage of this frequency
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| | within a designated range, which change
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| band. Garage door openers, baby
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| | from one another on a regular basis.
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| monitors, and the next generation of
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| | In the case of Bluetooth, the
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| mobile phones all use this frequency
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| | transmitters will change frequency 1,600
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| within the ISM band. Ensuring that
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| | times or more every second, meaning that
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| Bluetooth and the other devices don't
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| | more devices can make full use of the
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| interfere with each other is a crucial
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| | radio spectrum. Since every transmitter
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| part of the design process.
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| | of Bluetooth will use spread spectrum
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| One of the ways Bluetooth will avoid
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| | automatically, it's very unlikely that
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| interfering with other electronic devices
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| | two transmitters will be on the same
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| is by sending out weak signals of around
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| | frequency at the exact same time.
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| 1 mw. In comparison, even the most
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| | When the Bluetooth devices come within
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| powerful of cell phones can transmit a
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| | close range of each other, an electronic
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| signal of 3 watts.
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| | conversation will occur to determine
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| The low power signals will limit the
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| | whether or not they have data to share or
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| range of a Bluetooth device to around 32
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| | whether one needs to take total control.
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| feet, which cut the chances of
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| | The user doesn't have any buttons to
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| interference between your computer and
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| | press or commands to give - as the
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| other electronic devices. Even though it
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| | conversation will occur automatically.
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| has low power, Bluetooth doesn't require
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| | Once the conversation has occured, the
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| a line of sight between the communicating
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| | devices will form a network. Bluetooth
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| devices. The walls in your home won't
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| | devices will create a PAN (Personal Area
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| stop the signal, making it great for
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| | Network) or piconet that may fill a room.
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| rooms throughout the house.
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| | Once the piconet has been established,
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| Bluetooth can connect 8 devices at the
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| | the devices will randomly hop in
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| same time. With each of those devices on
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| | frequencies.
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| the same radius, you may think they would
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