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Communication SystemsNoise Figure

A receiver has noise figure F=2 as a linear ratio. Its noise figure in decibels is approximately?

  • A1 dB
  • B3.01 dB
  • C6.02 dB
  • D20 dB
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Correct Answer: B. 3.01 dB
Explanation: NF(dB)=10log10(F)=10log10(2)≈3.01 dB.
Reference: Standard communication systems: noise figure
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