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G3C11:Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

G3C11G3C

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G3C11 is The D region.

The key fact is The D region. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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