Assertion: radio wave's frequency | /r/HasProperty | suitable
Facets:
Source sentences:
text: Because radio waves in this band can be reflected back to Earth by the ionosphere layer in the atmosphere – a method known as "skip" or "skywave" propagation – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent line-of-sight communications.
text: If the current generates an electromagnetic field or wave at a frequency that is suitable for broadcasting television or radio signals, then it is considered a radio frequency.