The directivity of a prime-focal parabolic reflector antenna is 30 dBi – McqOptions

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1.	The directivity of a prime-focal parabolic reflector antenna is 30 dBi. If the efficiency of the antenna is 50%, the gain of the antenna is:
A.	27 dBi
B.	33 dBi
C.	25 dBi
D.	80 dBi
Answer» B. 33 dBi

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