My antenna system is designed as a top-loaded dipoles with gain of 2dBi, what is the gain in dBd?


A. -0.115 dB

B. 4.15 dB

C. -0.15

D. 2dB


The answer is C, 0.15 dB. The gain of a dipole antenna is 2.15 dB, compared to an isotropic antenna. Thus, dBd = dBi – 2.15 = -0.15

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