Extra exam question E9A11
Subelement E9, ANTENNAS AND TRANSMISSION LINES· Group E9A
Which of the following determines ground losses for a ground-mounted vertical antenna operating on HF?
- A.The standing wave ratio
- B.Distance from the transmitter
- C.Soil conductivity (correct answer)
- D.Take-off angle
WhySoil conductivity determines ground losses for a ground-mounted vertical antenna operating on HF. Ground losses for a ground-mounted HF vertical are primarily determined by soil conductivity, since current returning through the earth encounters more resistive loss in poorly conducting soil than in highly conductive soil (or seawater), answer C. SWR, distance from the transmitter, and take-off angle don't determine how much power is actually lost to ground resistance near the antenna's base.
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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