73·STUDY

Extra exam question E4A11

Subelement E4, AMATEUR PRACTICES· Group E4A

E4A11

Which of the following can be measured with an antenna analyzer?

  • A.Velocity factor
  • B.Cable length
  • C.Resonant frequency of a tuned circuit
  • D.All these choices are correct (correct answer)

WhyAn antenna analyzer can measure velocity factor, cable length, and the resonant frequency of a tuned circuit. An antenna analyzer can measure a feed line's velocity factor, determine cable length from a time-domain-style reflection measurement, and find the resonant frequency of a tuned circuit, all by sweeping frequency and observing impedance or reflection behavior, answer D. Since it genuinely performs all three of these measurements, no single one alone captures everything an antenna analyzer can do.

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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