Question Pool -- Category G3C
What is the main reason the 160-, 80- and 40-meter amateur bands tend
to be useful only for short-distance communications during daylight
hours?
-
A.
- Because of a lack of activity
-
B.
- Because of auroral propagation
-
C.
- Because of D-region absorption
-
D.
- Because of magnetic flux
See answer.
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