A parabolic dish antenna has a conical beam 2 wide. The directivity of the antenna is approximately

A parabolic dish antenna has a conical beam 2 wide. The directivity o

1.	A parabolic dish antenna has a conical beam 2 wide. The directivity of the antenna is approximately
A.	20 dB
B.	30 dB
C.	40 dB
D.	50 dB
Answer» E.

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A parabolic dish antenna has a conical beam 2 wide. The directivity of the antenna is approximately

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