Amateur Extra › E3 Radio Wave Propagation › E3B05
E3B05
Which of the following paths is most likely to support long-distance propagation on 160 meters?
Pick an answer to check it.
Answer: D. A path entirely in darkness
160 meters suffers heavy D-layer absorption in daylight, so long-distance contacts work best when the whole path is in darkness.
Tip: 160 m DX: whole path in the dark.