A fixed radar station transmits 100 kW at 3 GHz. The smallest ocean-going ship has a radar cross-section of 200m2. The radar antenna gain is 16 dB. If detection requires a minimum of 1 nW /m2 at the radar antenna, the effective range of the radar is nearly

A fixed radar station transmits 100 kW at 3 GHz. The smallest ocean-go

1.	A fixed radar station transmits 100 kW at 3 GHz. The smallest ocean-going ship has a radar cross-section of 200m2. The radar antenna gain is 16 dB. If detection requires a minimum of 1 nW /m2 at the radar antenna, the effective range of the radar is nearly
A.	7.1 km
B.	8.4 km
C.	70.7 km
D.	84.0 km
Answer» C. 70.7 km

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A fixed radar station transmits 100 kW at 3 GHz. The smallest ocean-going ship has a radar cross-section of 200m2. The radar antenna gain is 16 dB. If detection requires a minimum of 1 nW /m2 at the radar antenna, the effective range of the radar is nearly

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