Examples
Examples
Try the starting example
- Stage power gains (dB)
- 10,10
- Stage noise figures (dB)
- 2,5
- Cascade noise figure (dB)
- 2.555429
Try another scenario
- Stage power gains (dB)
- [15, 10]
- Stage noise figures (dB)
- [2, 5]
- Cascade noise figure (dB)
- 2.183439
Calculation method
Calculation method
Cascade noise figure (dB)
Friis noise factor: F1+(F2−1)/G1+…; gains in linear power units.
Symbols and units
- a
- Stage power gains (dB)
- b
- Stage noise figures (dB)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Stage gains and noise figures. Returns Cascade noise figure. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Stage power gains (dB): minimum None, maximum 1000000000000.0. Stage noise figures (dB): minimum 0, maximum 100.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.