General exam question G3A07
Subelement G3, RADIO WAVE PROPAGATION· Group G3A
At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?
- A.At the summer solstice
- B.Only at the maximum point
- C.Only at the minimum point
- D.At any point (correct answer)
WhyThe 20-meter band usually supports worldwide daytime propagation at any point in the solar cycle. 20 meters is reliable enough that it supports worldwide daytime propagation at essentially any point in the roughly 11-year solar cycle, unlike the higher bands that need a solar maximum to open reliably, answer D. It isn't tied to a particular season, and it doesn't need either a solar maximum or minimum specifically, that's exactly what makes 20 meters such a dependable workhorse band.
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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