Technician exam question T9A01
Subelement T9, ANTENNAS AND FEED LINES· Group T9A
T9A01
What is a beam antenna?
- A.An antenna built from square aluminum beams
- B.An omnidirectional antenna invented by Clarence Beam
- C.An antenna that concentrates signals in one direction (correct answer)
- D.An antenna that focuses the signal into two intense rays
WhyA beam antenna is an antenna that concentrates signals in one direction. A beam antenna uses multiple elements arranged to concentrate radiated energy in a preferred direction, at the cost of reduced radiation elsewhere, answer C. It has nothing to do with square aluminum construction (A) or an inventor named Clarence Beam (B), and it doesn't focus into two separate rays (D), a directional antenna produces one main lobe, not a pair of them.
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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