Extra exam question E9A05
Subelement E9, ANTENNAS AND TRANSMISSION LINES· Group E9A
What does the term “ground gain” mean?
- A.The change in signal strength caused by grounding the antenna
- B.The gain of the antenna with respect to a dipole at ground level
- C.To force net gain to 0 dB by grounding part of the antenna
- D.An increase in signal strength from ground reflections in the environment of the antenna (correct answer)
Why"Ground gain" means an increase in signal strength from ground reflections in the antenna's environment. Ground gain refers to an increase in signal strength that comes from constructive reflections off the ground in the antenna's immediate environment, effectively adding to the direct radiated signal in certain directions, answer D. It isn't a change caused specifically by grounding the antenna itself, isn't gain relative to a ground-level dipole, and isn't a technique for forcing net gain to 0 dB, those don't describe what "ground gain" actually means.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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