2.1.5 work of Bluetooth?
Bluetooth uses high frequency radio signals 2.4 GHz. (moisture), but will digest Herz. ตามแต่ละ countries. As in Europe and America, will use the 2.400 to 2.4835 GHz.Divided into 79 channel. And will use the channel at this break. To send information back and forth 1 600 switch channels, once per 1 seconds. The government will use frequency 2.402 to 2.480 GHz.Divided into 23 channel range of Bluetooth is 5-10 meters. By using the protected code entry before the connection and anti jamming Communication between The system will switch the channel back and forth.Without sorted by channel number. The wire or steal information, it is difficult to smuggle the principle of Bluetooth are designed to be used with the equipment with small. Due to transport data in much.The sound,Applications, and can be moved easily. Ask within defined only (about 5-10 meters) is also a low energy consumption, low power consumption, and can be used for a long time without the need to charge more often. With the size smaller.The energy consumption is much less than in the 0.1 watts, if compared to the signal. Also separated several times too
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