// multi-utility computation suite · offline · instant · precise
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eng.signal-snr Calculator
Calculates Signal-to-Noise Ratio (SNR) in dB, dynamic range, and noise floor from signal power and noise power. SNR above 40 dB is excellent for audio; communications systems typically require minimum SNR of 10–20 dB depending on the modulation scheme.
Inputs
Signal Dbm
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.
Noise Dbm
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.
Bandwidth Khz
Horizontal extent perpendicular to the length.
Results
SNR
Sample size or count used in the calculation.
SNR (linear)
Sample size or count used in the calculation.
dynamic range
The difference between the maximum and minimum values.
quality
A qualitative assessment of how the result compares to the desired standard or benchmark.