General exam question G4B11
Subelement G4, AMATEUR RADIO PRACTICES· Group G4B
Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?
- A.Receiver
- B.Transmitter
- C.Antenna and feed line (correct answer)
- D.All these choices are correct
WhyAn antenna analyzer being used for SWR measurements must be connected to the antenna and feed line. An antenna analyzer generates its own low-power test signal and measures how the connected load reflects it, so for an SWR measurement it must be connected directly to the actual antenna and feed line being tested, answer C. It doesn't need a receiver or transmitter connected at all, it supplies its own signal source, which rules out A, B, and D.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2023-2027 NCVEC Element 3 pool (public domain); the explanation above is original writing, see our methodology.
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