Signal modulation

Signal modulation is a technique used in communication systems to transmit information by altering a carrier signal's properties, such as its amplitude, frequency, or phase. This process encodes data onto the high-frequency carrier wave, allowing signals to travel over distances efficiently and accurately. Think of it like tuning a radio; changing the frequency allows you to access different stations. Modulation enables multiple signals to share the same medium without interference, increasing the capacity and reliability of communication channels like radio, TV, and internet networks.