modulation means...\n○ to change key.\n○ to change color.\n○ to change address.
modulation means...\n○ to change key.\n○ to change color.\n○ to change address.
Answer
Answer:
None of the above options are correct. In general, modulation in communication - related fields means to change some characteristics of a carrier wave (such as amplitude, frequency, or phase) according to the information - bearing signal.
Brief Explanations:
Modulation in communication technology is about altering carrier - wave properties for signal transmission, not about changing key, color, or address as presented in the options.