Assertion: radio wave | /r/CapableOf | travel hundreds of kilometers
Facets:
value: beyond the horizon
type: LOCATION
Source sentences:
text: Unlike AM broadcasting which uses the LF and MF bands where radio waves can travel hundreds of kilometers beyond the horizon as ground waves which follow the contour of the Earth, FM and TV transmitters used the VHF band, in which radio waves travel by line of sight, so they are limited by the visual horizon, requiring higher elevation antennas to cover the same area.