5. A bi-static radar has identical antennas at 35 GHz which have gain of 30 dB. Radar parameters include: e P= 50 kW BN = 12 MHz (Sr/Nr) = 20 Tsys

= 425 K LTotal 2.8 R1 = 1.63-R2 k=1.38x10-23 J/K Assume a target with a radar cross section of 5 m². What are the target ranges R1 and R2?