THE FEUTEX TOOLKIT

Receiver Thermal Sensitivity Budget

Combine thermal noise, noise figure and required SNR into input sensitivity.

Communications workspace● Runs in your browser

01 Your input

Reference temperatureKNoise bandwidthHzReceiver noise figuredBRequired SNRdB

02 Your result

View or copy raw result data

Result data

FormulaPmin=kTB × F × SNRlinear

Sources and model references

https://www.analog.com/media/en/training-seminars/tutorials/MT-006.pdf

Worked example

Inputs

Reference temperature: 290 K
Noise bandwidth: 1000000 Hz
Receiver noise figure: 5 dB
Required SNR: 10 dB

Expected results

Thermal input noise: -113.9751872 dBm
Required input signal: -98.97518719 dBm

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

Enter the labeled inputs in the indicated units.
Calculate and compare every output against the stated model assumptions.

Try this example

{
  "t": 290,
  "b": 1000000,
  "nf": 5,
  "snr": 10
}

Accuracy and scope

Noise figure reference and source temperature must be consistent; no interference, implementation loss or fading. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.