Radar Calculator
This CalcTown calculates the various parameters related to radio detection and ranging.

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Where,
Pt = Transmitted Power
Pr1 = Power returning to the Receiver Antenna (1-way radar equation)
Pr2 = Power returning to the Receiver Antenna (2-way radar equation)
Prefl = Reflected signal from target
Gt = Gain of the Transmitting Antenna
Ga = Target Gain Factor or Gain of RCS
Gr = Effective Aperture of the Receiving Antenna
σ = Radar Cross-section or Scattering co-efficient of target
F = Pattern Propagation Factor
λ = Wavelength
R = Range (distance from transmitter or receiver to target)