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General exam question G3B09

Subelement G3, RADIO WAVE PROPAGATION· Group G3B

G3B09

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?

  • A.180 miles
  • B.1,200 miles
  • C.2,500 miles (correct answer)
  • D.12,000 miles

WhyA single hop using the F2 region normally covers a maximum of about 2,500 miles along the Earth's surface. A single hop via the F2 region, the highest and most far-reaching ionospheric layer, can cover roughly 2,500 miles along the Earth's surface, answer C. The E region (lower and closer to Earth) covers less distance per hop, and 180 miles is far too short while 12,000 miles is far too long for a single hop by any region.

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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