Technician exam question T4A02
Subelement T4, AMATEUR RADIO PRACTICES· Group T4A
Which of the following should be considered when selecting an accessory SWR meter?
- A.The frequency and power level at which the measurements will be made (correct answer)
- B.The distance that the meter will be located from the antenna
- C.The maximum SWR anticipated on the transmission line
- D.The ability of the meter to compensate for a poor transmission line match to the antenna
WhyThe frequency and power level at which measurements will be made should be considered when selecting an accessory SWR meter. An SWR meter's internal bridge circuit is only accurate over the frequency range and power range it was designed for, so those two specs are what to check before buying one, answer A. How far the meter sits from the antenna (B) doesn't affect the meter itself, an SWR meter doesn't compensate for a mismatch (D), it only measures one, and the SWR you expect to see (C) isn't a property of the meter you're choosing.
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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