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Signal to Noise Ratio
Interactive Calculator

A SNR of 2.5 dB means there might be reduction in data speed. In digital communication SNR of 16.48 dB means the data speed is clearly readable. Communication engineer always try to design their system to get maximum SNR

Practice:
The output signal is 2 microvolt and the input signal is 0.3 microvolt , solve for the signal to noise ratio in dB.

Ar

=

20 *Log

Ao output Ai input

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Practice:
Given the SNR is 16.48 dB and the given input is 0.3 microvolt, solve for the output signal in microvolt.

dB

=

20 *Log

Ao output Ai input

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