Self-Screening Range

Equation:

RSS = ((PR x GR x δ x BWJ x GP)    /    (PJ x GJ x 4 x pi x BWR x S/N))0.5
 RSS    = Range Self Screening (m)
 PR       = Radar Transmitted RF Power (Watt)
 GR      = Radar Antenna Gain (Figure, LOPAR Pencil Beam)
 λ        = Radar Cross Section of Jammer (sq. m)
 BWJ    = Bandwidth of Jamming (Hz)
 Gp      = Gain Processing (MTI, Integration etc.)
 PJ       = Transmitted Jamming Power (Watt)
 GJ       = Antenna Gain of Jammer
 BWR    = IF Bandwidth of Radar
 S/N     = Necessary Signal to Noise Ratio
   
                 PR               GR         δ    BWJ     GP         PJ        GJ    pi         BWR      S/N
RSS    = (( 1 000 000 x 3162 x  3  x  16  x  1 )   /  ( 200  x   4 x 12.57 x 16    x    1  ))0.5 

   =  971 m
 

Under the above conditions the LOPAR could not detect the target early enough for an engagement!