What is the function of low noise amplifier in satellite receiver?
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What type of low noise amplifiers(LNA) are used in satellitecommunication systems? The communication satellites have several transponders with 36 MHz bandwidth each. Satellitereceives the signal from earth station and re-transmits it. At thereceiver front end, a low noisefigure amplifier is used.
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- Low Noise Amplifier (LNA) A low-noise amplifier (LNA) is an electronic amplifier that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio. An amplifier increases the power of both the signal and the noise present at its input. It does not add additional noise.
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