Technician exam question T9B07
Subelement T9, ANTENNAS AND FEED LINES· Group T9B
Which of the following is true of PL-259 type coax connectors?
- A.They are preferred for microwave operation
- B.They are watertight
- C.They are commonly used at HF and VHF frequencies (correct answer)
- D.They are a bayonet-type connector
WhyPL-259 type coax connectors are commonly used at HF and VHF frequencies. PL-259 connectors are the traditional, widely used connector for HF and VHF amateur equipment, answer C. They aren't preferred for microwave work (A), where their impedance discontinuity becomes a real problem, they aren't inherently watertight (B), and they're a threaded, screw-on design rather than a bayonet-style connector (D, that describes connectors like BNC).
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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