General exam question G3B02
Subelement G3, RADIO WAVE PROPAGATION· Group G3B
G3B02
What factors affect the MUF?
- A.Path distance and location
- B.Time of day and season
- C.Solar radiation and ionospheric disturbances
- D.All these choices are correct (correct answer)
WhyThe maximum usable frequency is affected by path distance and location, time of day and season, and solar radiation and ionospheric disturbances. The maximum usable frequency depends on the specific path's distance and geography, the time of day and season (which control ionization levels), and current solar and geomagnetic conditions, all of these genuinely shift the MUF, answer 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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