Extra exam question E4B09
Subelement E4, AMATEUR PRACTICES· Group E4B
Which of the following can be measured by a two-port vector network analyzer?
- A.Phase noise
- B.Filter frequency response (correct answer)
- C.Pulse rise time
- D.Forward power
WhyA two-port vector network analyzer can measure a filter's frequency response. A two-port vector network analyzer can measure a filter's frequency response, sweeping frequency and recording how much the filter passes or attenuates at each point, exactly the kind of characterization a VNA is built for, answer B. Phase noise, pulse rise time, and forward power are each measured with other, more specialized instruments rather than a standard two-port VNA sweep.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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