NEW 2MHz - 80MHz 5W Frequency amplifier RF Wideband Amplifiers power amplifier The RF power amplifier is a linear amplifier with a small distortion, wide frequency range of characteristics that can be applied in various forms of signal amplification. Such acts as the communications and remote control in the final stage amplifier , strengthen the transmission power , increase the transmission distance can also be used as a driver amplifier to drive the last stage power amplifier.