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E3B11: At what time of day is sporadic-E propagation most likely to occur?

E3B11E3B

At what time of day is sporadic-E propagation most likely to occur?

Answer choices for E3B11
Why this wins

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

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E3B11 is Between sunrise and sunset.

The key fact is Between sunrise and sunset. 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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More questions in E3B

E3B01Where is transequatorial propagation (TEP) most likely to occur?E3B02What is the approximate maximum range for signals using transequatorial propagation?E3B03At what time of day is transequatorial propagation most likely to occur?E3B04What are “extraordinary” and “ordinary” waves?E3B05Which of the following paths is most likely to support long-distance propagation on 160 meters?E3B06On which of the following amateur bands is long-path propagation most frequent?