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Amateur Extra Class (Element 4) • 2024-2028

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Question E9B07

From subelement E9 - E9B

E9B07
Answer: C

What is the difference in radiated power between a lossless antenna with gain and an isotropic radiator driven by the same power?

AThe power radiated from the directional antenna is increased by the gain of the antenna
BThe power radiated from the directional antenna is stronger by its front-to-back ratio
CThey are the same
DThe power radiated from the isotropic radiator is 2.15 dB greater than that from the directional antenna