Technician exam question T3A12
Subelement T3, RADIO WAVE PROPAGATION· Group T3A
What effect does fog or rain have on 10-meter and 6-meter band signals?
- A.Absorption
- B.Little effect (correct answer)
- C.Deflection
- D.Increased range
WhyFog or rain has little effect on 10-meter and 6-meter band signals. 10-meter and 6-meter signals are long enough in wavelength, and low enough in frequency, that fog and rain droplets are far too small to significantly scatter or absorb them the way they affect microwave signals, so the practical effect is little to none, answer B. Absorption (A) and deflection (C) describe effects that matter far more at microwave frequencies, and there's no mechanism by which precipitation would increase range (D).
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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