This circuitry shifts the carrier wave to a higher frequency when it wants to send a 1 or to a lower frequency when it wants to send a 0.

当该电路要发送 1 时，它会将高频率；当该电路要发送 0 时，它会将低频率。

Note that the comparison to a traffic light which emits one color and then another is a little inaccurate because your smartphone's circuitry generates one frequency, called a carrier wave.

请注意， 与发出一种颜色然后发出另一种颜色的交通信号灯的比较有点不准确， 因为智能手机的电路会产生一种频率，称为。