Technician exam question T7C04
Subelement T7, PRACTICAL CIRCUITS· Group T7C
What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?
- A.50:50
- B.Zero
- C.1:1 (correct answer)
- D.Full Scale
WhyAn SWR meter reading of 1:1 indicates a perfect impedance match between the antenna and the feed line. An SWR of 1:1 means the antenna system's impedance is perfectly matched to the feed line, so no power is reflected back toward the transmitter, answer C. "50:50" (A) isn't how SWR is expressed, a reading of zero (B) isn't physically meaningful for SWR (the scale starts at 1:1, not 0), and a full-scale reading (D) would indicate a severe mismatch, the opposite of a good match.
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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