Question
If receiver noise floor is 2 dB, signal-to-noise ratio
is 3 dB then what is the receiver sensitivity?Solution
Receiver sensitivity is defined as the minimum input signal power  required by the receiver to achieve a specified signal-to-noise ratio (SNR)  at the output. Mathematically,
Receiver Sensitivity = Noise Floor + Required SNR Here, Noise Floor = 2 dB SNR = 3 dB So, Receiver Sensitivity = 2 dB + 3 dB = 5 dB
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