Mutual Screening Range (Fremdmaskierungsgrenze) Equation:  RS    = (( PR x GR x GR x  δ x R2J  x BWJ x GP)    / (PJ x GJ x GRJ x 4 x pi x BWR x S/N x L))0.25    RS      = Range Screening (m)  PR       = Radar Transmitted RF Power (Watt)  GR      = Radar Antenna Gain (Figure, LOPAR Pencil Beam)  δ        = Radar Cross Section of Jammer (sq. m)  R        = Range to Jammer (m)  BWJ    = Bandwidth of Jamming (Hz)  Gp      = Gain Processing,MTI, Integration etc.. (Figure)  PJ       = Transmitted Jamming Power (Watt)  GJ       = Antenna Gain of Jammer (Figure)  GRJ     = Radar Antenna Gain in the Direction of Jammer (Figure)  BWR    = IF Bandwidth of Radar (Hz)  S/N     = Necessary Signal to Noise Ratio (Figure)  L         = Jammer Losses (Figure) Example: Target will be screened by a Jammer. Target and Jammer are in the main beam of the LOPAR antenna.                                     PR            GR x GR    δ     R2J        BWJ     GP          PJ       GJ    GRJ               BWR  S/N  L RS    =    ((1 000 000 x 10 000 000 x 3 x 1.08911 x  16    x  1)  /  (1 000 x 4 x 3162 x 12.58  x  16 x 1  x  1))0.25 The Target will be visible at =   11 970 m That is to close and within the clutter area of the RADAR.