Communicating Information Flashcards
1
Q
Define modulation
A
The process of using one wave form to alter the frequency, amplitude or phase of another wave form (to carry information)
2
Q
Amplitude modulation
A
Amplitude of carrier wave made to vary in sync with displacement of information signal.
Frequency unchanged
3
Q
Frequency modulation
A
Frequency of carrier wave made to vary in sync with displacement of information signal.
Amplitude constant
