Examples
Examples
Try the starting example
- Received signal (dBm)
- -80
- Thermal noise (dBm)
- -105
- Independent interference (dBm)
- -100
- Combined noise and interference (dBm)
- -98.80669
- Signal-to-noise-plus-interference ratio (dB)
- 18.80669
Try another scenario
- Received signal (dBm)
- -88
- Thermal noise (dBm)
- -105
- Independent interference (dBm)
- -100
- Combined noise and interference (dBm)
- -98.80669
- Signal-to-noise-plus-interference ratio (dB)
- 10.80669
Calculation method
Calculation method
Combined noise and interference (dBm)
Add thermal and interference powers in linear milliwatts.
Signal-to-noise-plus-interference ratio (dB)
Signal minus combined disturbance dBm.
Symbols and units
- a
- Received signal (dBm)
- b
- Thermal noise (dBm)
- c
- Independent interference (dBm)
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
- Signal level, noise estimate, interference assumptions. Returns SNR scenario. 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. Received signal (dBm): minimum None, maximum 1000000000000.0. Thermal noise (dBm): minimum None, maximum 1000000000000.0. Independent interference (dBm): 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.