中继器和放大器的区别

中继器和放大器都是电子设备。
中继器：
如果发现先前传输的信号较弱，则中继器用于重新生成信号然后传输。中继器需要高输入功率并提供低输出功率。信号的噪声也可以通过再生信号来降低。

放大器：
如果发现先前传输的信号较弱，则放大器用于增加信号的幅度或强度。它需要低输入功率并提供高输出功率。

中继器和放大器的区别：
中继器和放大器之间的主要区别在于，中继器用作信号的再生，而放大器只是增加信号的幅度。

S.NO	Repeater	Amplifier
1.	Repeater regenerates the signal, if the provided original signal is weak.	Amplifier increases the amplitude of the signal.
2.	Repeater takes high input power and provides low output power.	Amplifier takes low input power and provides high output power.
3.	Repeater is generally used in static(stationary) environment.	Amplifier is generally used in Mobile and Remote area network.
4.	Repeater regenerates the signal so that the noise can be reduced or eliminated.	Amplifier increases the amplitude of the signal with the noise.
5.	Repeater works on the physical layer of OSI model.	Generally Amplifier is used in wireless communication.