Technician exam question T9A02
Subelement T9, ANTENNAS AND FEED LINES· Group T9A
Which of the following describes a type of antenna loading?
- A.Electrically lengthening by inserting inductors in radiating elements (correct answer)
- B.Inserting a resistor in the radiating portion of the antenna to make it resonant
- C.Installing a spring in the base of a mobile vertical antenna to make it more flexible
- D.Strengthening the radiating elements of a beam antenna to better resist wind damage
WhyAntenna loading, in one common form, means electrically lengthening an antenna by inserting inductors in its radiating elements. Antenna loading electrically lengthens a physically short antenna by adding inductance (a loading coil) in series with the radiating element, letting a shorter-than-quarter-wave antenna still appear resonant, answer A. A resistor in the radiating element (B) would dissipate power rather than help resonance, a mechanical spring at a mobile antenna's base (C) is a physical flex joint, not electrical loading, and reinforcing beam elements against wind (D) is a structural, not electrical, consideration.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
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