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Thermal-Noise Receiver Sensitivity

Estimate receiver sensitivity from bandwidth, noise figure, and required signal-to-noise ratio.

Inputs

Inputs

Range: 1–10,000,000,000 Hz

Enter receiver noise bandwidth in Hz, not necessarily occupied channel bandwidth.

Range: 0–40 dB

Enter receiver noise figure in dB at the operating frequency and temperature.

Range: -10–60 dB

Enter minimum required SNR in dB for the selected demodulation/error target.

Result

Noise floor after noise figure (dBm)
-99.000
Estimated receiver sensitivity (dBm)
-89.000
Thermal noise floor at 290 K (dBm)
-104.000

Formula

Calculation logic

Formula definitions and substituted values.

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Screening tool. Verify the result against the manufacturer's published rating, the actual equipment, route, floor, and applicable local requirements before ordering, installing, or relying on it.