A radar receiver has a detection SNR threshold of 10 dB for a 4 MHz bandwidth signal at 300 MHz frequency. If the transmit EIRP of the radar is 40 dBW and receive G/T is 10 dB/K, what is the minimum Radar Cross section (in dB-meter square) detectable at 10 km range?(Given: 10 log (4π) = 11, log 10 (k) = -228.6, k is Boltzmann constant)

A radar receiver has a detection SNR threshold of 10 dB for a 4 MHz ba

1.	A radar receiver has a detection SNR threshold of 10 dB for a 4 MHz bandwidth signal at 300 MHz frequency. If the transmit EIRP of the radar is 40 dBW and receive G/T is 10 dB/K, what is the minimum Radar Cross section (in dB-meter square) detectable at 10 km range?(Given: 10 log (4π) = 11, log 10 (k) = -228.6, k is Boltzmann constant)
A.	-15.6 dBm2
B.	-8.6 dBm2
C.	-9.6 dBm2
D.	-5.6 dBm2
Answer» D. -5.6 dBm2

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