Examples
Examples
Try the starting example
- Fundamental output per tone (dBm)
- 0
- Third-order output intermodulation (dBm)
- -40
- Small-signal stage gain (dB)
- 10
- Output third-order intercept (dBm)
- 20
- Input third-order intercept (dBm)
- 10
Try another scenario
- Fundamental output per tone (dBm)
- 1
- Third-order output intermodulation (dBm)
- -40
- Small-signal stage gain (dB)
- 10
- Output third-order intercept (dBm)
- 21.5
- Input third-order intercept (dBm)
- 11.5
Calculation method
Calculation method
Output third-order intercept (dBm)
Fundamental + (fundamental−IM3)/2 under two-tone small-signal model.
Input third-order intercept (dBm)
Output intercept minus gain.
Symbols and units
- a
- Fundamental output per tone (dBm)
- b
- Third-order output intermodulation (dBm)
- c
- Small-signal stage gain (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
- Measured tones-products, input-output convention. Returns Estimated intercept point. 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. Fundamental output per tone (dBm): minimum None, maximum 1000000000000.0. Third-order output intermodulation (dBm): minimum None, maximum 1000000000000.0. Small-signal stage gain (dB): minimum None, maximum 1000000000000.0.
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.