Which of the statements given below are correct? 1. The author of the novel 'Atonement' is Ian McEwan. 2. The author of the novel 'The Sound and the Fury' is L. Ron Hubbard. 3. The author of the novel 'White Teeth' is Zadie Smith.
"Noise figure" is one critical parameter for determining the "quality" of a low-noise, small-signal, amplifier, and perhaps more importantly, the sensitivity of the overall receiver system. It is especially important for VHF (very high frequency) - and higher frequency - designs where most of the undesired "noise" (noise that masks or overpowers the desired signals) is generated internal to the electronics itself. In HF (high frequency) applications, atmospheric noise plays a much larger role in determining overall useful sensitivity, so a circuit's "noise figure" is less important.