modulator - Definition & Meaning

a device or circuit that converts an audio or video signal into a carrier signal suitable for transmission over a specific medium, such as radio waves or cablea device or circuit that converts an audio or video signal into a carrier signal suitable for transmission over a specific medium, such as radio waves or cable

A modulator is a device used to combine a signal, such as video or audio, with a radio or TV wave to make it suitable for transmission over long distances, like through radio, television, or cable networks. It works by changing the wave’s properties, such as its frequency, to carry the original signal. Modulators are commonly used in broadcasting to send signals to televisions or radios. They are also used in communication systems, like satellite or cable television, to send content over the air or through cables.A modulator is a device used to combine a signal, such as video or audio, with a radio or TV wave to make it suitable for transmission over long distances, like through radio, television, or cable networks. It works by changing the wave’s properties, such as its frequency, to carry the original signal. Modulators are commonly used in broadcasting to send signals to televisions or radios. They are also used in communication systems, like satellite or cable television, to send content over the air or through cables.

例句

The technician adjusted the modulator to improve the signal quality for the broadcast.
技术人员调整了调制器以提高广播的信号质量。
The satellite uses a modulator to send TV signals to cable providers.
卫星使用调制器向有线电视提供商发送电视信号。
During the setup, the engineer connected the modulator to the transmitter to ensure a smooth broadcast.
在设置过程中，工程师将调制器连接到发射机，以确保广播的顺利进行。