What is the Difference Between Modulation and Demodulation?

Modulation and demodulation are essential processes in data communication that involve the transmission and extraction of information from a carrier signal. Here are the key differences between the two:

• Purpose: Modulation is the process of encoding information in a transmitted signal, while demodulation is the process of extracting information from the transmitted signal.
• Implementation: In modulation, the message signal is mixed with a carrier signal, which is a signal of high frequency used to carry the message signal. In demodulation, the carrier signal is processed to recover the original message signal.
• Direction: Modulation is performed at the transmitter end, while demodulation is performed at the receiver end.
• Device: A device that performs both modulation and demodulation is called a modem.

In summary, modulation is the process of adding information to a carrier signal for transmission, while demodulation is the process of extracting the original information from the carrier signal at the receiving end. Both processes are crucial for efficient data communication and are performed by a device called a modem.

Comparative Table: Modulation vs Demodulation

Here is a table highlighting the differences between modulation and demodulation:

Both modulation and demodulation are essential processes in data communication, ensuring the efficient transfer of data and information with minimal losses.