G3A02 : What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?
A
It enhances propagation on all HF frequencies
B
It disrupts signals on lower frequencies more than those on higher frequencies
C
It disrupts communications via satellite more than direct communications
D
None, because only areas on the night side of the Earth are affected
Correct Answer: It disrupts signals on lower frequencies more than those on higher frequencies