State RADAR range equation and write factor influencing maximum range.
Free Space RADAR range Equation: 1.RADAR range equation relates the range of a RADAR to the chara. Of Tx, Rx, Antenna, target & environment. 2.Free space means RADAR and target are isolated in an unbound empty space. 3.There is no obstacle between RADAR antenna & the target. 4.There will be No absorption of EM waves.