Examples
Examples
Try the starting example
- Transmitted power (W)
- 1000
- Transmit linear gain
- 100
- Receive linear gain
- 100
- Wavelength (m)
- 0.03
- Target radar cross section (m²)
- 1
- Target range (m)
- 10000
- Ideal monostatic echo power (W)
- 0
- Ideal echo power (dBm)
- -123.433871
Try another scenario
- Transmitted power (W)
- 1100
- Transmit linear gain
- 100
- Receive linear gain
- 100
- Wavelength (m)
- 0.03
- Target radar cross section (m²)
- 1
- Target range (m)
- 10000
- Ideal monostatic echo power (W)
- 0
- Ideal echo power (dBm)
- -123.019944
Calculation method
Calculation method
Ideal monostatic echo power (W)
Pt Gt Gr wavelength² cross-section / ((4pi)³ range⁴), no losses or clutter.
Ideal echo power (dBm)
10 log10(power W×1000).
Symbols and units
- a
- Transmitted power (W)
- b
- Transmit linear gain
- c
- Receive linear gain
- d
- Wavelength (m)
- e
- Target radar cross section (m²)
- f
- Target range (m)
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
- Transmit power, gains, wavelength, target cross-section, range. Returns Ideal received echo power. 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. Transmitted power (W): minimum 1e-12, maximum 1000000000000.0. Transmit linear gain: minimum 1e-12, maximum 1000000000000.0. Receive linear gain: minimum 1e-12, maximum 1000000000000.0. Wavelength (m): minimum 1e-12, maximum 1000000000000.0. Target radar cross section (m²): minimum 1e-12, maximum 1000000000000.0. Target range (m): minimum 1e-12, 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.