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The GainorsGain (electronics) Gain (electronics) Ability of a circuit to increase the power or amplitude of a signal Not to be confused with Antenna gain. In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port[1][2][3][4] by adding energy converted from some power supply to the signal. It is usually defined as the mean ratio of the signal amplitude or power at the output port to the amplitude or power at the input port.[1] It is often expressed using the logarithmic decibel (dB) units ("dB gain").[4] A gain greater than one (greater than zero dB), that is, amplification, is the… (Source: Wikipedia)
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