Question

what is sky wave communication?

Answer 1

Ionospheric reflection of radio waves, back towards the earth, is known as sky wave communication. The ionospheric layers act as a reflector for a certian range of frequencies (3-30 MHz). Electromagnetic waves of frequencies higher than 30MHz (or few up to 40 MHz) penetrate the ionosphere and escape.

Answer 2

In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere....