Assertion: antenna's radio wave | /r/HasProperty | typical
Facets:
value: for skywave
type: OTHER
value: for indirect paths
type: CAUSE
value: for medium or longwave broadcasting
type: OTHER
Source sentences:
text: However if the radio waves travel by ground wave as is typical for medium or longwave broadcasting, skywave, or indirect paths play a part in transmission, the waves will suffer additional attenuation which depends on the terrain between the antennas, so these formulas are not valid.