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G3C05: Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?

G3C05G3C

Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?

Answer choices for G3C05
Why this wins

The reason is the D region absorbs signals at these frequencies during daylight hours. Connect the cause in the question to this direct result instead of memorizing the answer letter.

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G3C05 is The D region absorbs signals at these frequencies during daylight hours.

The reason is the D region absorbs signals at these frequencies during daylight hours. Connect the cause in the question to this direct result instead of memorizing the answer letter.

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