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Ground waves: At lower ⎽⎽⎽⎽⎽⎽⎽⎽ below 2 MHz, in the medium wave and longwave bands, due to diffraction vertically polarized radio waves can bend over hills and mountains, and propagate beyond the horizon, traveling as surface waves which follow the contour of the Earth.

Belongs to subject Radio waves

Ground waves: At lower ⎽⎽⎽⎽⎽⎽⎽⎽ below 2 MHz, in the medium wave and longwave bands, due to diffraction vertically polarized radio waves can bend over hills and mountains, and propagate beyond the horizon, traveling as surface waves which follow the contour of the Earth.