Assertion: radio wave's amplitude | /r/CapableOf | remain constant
Facets:
value: in frequency modulation
type: OTHER
Source sentences:
text: In frequency modulation, the amplitude (maximum extent) of the signal remains constant while the frequency is varied higher or lower at a rate and magnitude corresponding to the audio or data signal.
text: If the relative amplitude of oscillation at different points in the field remains constant, the wave is said to be a standing wave.