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1.2.2
1.2.2

Noise figure (NF) and noise factor (F) are measures of degradation of the signal-to-noise ratio (SNR), caused by components in a radio frequency (RF) signal chain. It is a number by which the performance of an amplifier or a radio receiver can be specified, with lower values indicating better performance.

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The noise figure is simply the noise factor expressed in decibels (dB).

 


                                           NF  NF = 10*log10(F)                                                                                   (Eq. 3)