What is typically the main benefit of using FSK in digital communication?

The primary benefit of using Frequency Shift Keying (FSK) in digital communication lies in its robustness against noise and interference. FSK works by varying the frequency of the carrier signal to represent different data states. This frequency modulation makes it less susceptible to the effects of noise, which is particularly valuable in environments where signal quality can be compromised.

Because FSK signals occupy specific frequency bands, the technique can differentiate between the intended signal and unwanted noise more effectively than some other modulation methods. As a result, FSK can maintain data integrity over longer distances and through various types of obstructions or electronic disturbances, making it a preferred choice in many digital communication applications.

While other aspects such as bandwidth efficiency and simplicity in circuit design are important considerations in the overall communication system design, the standout feature of FSK is undeniably its resilience in the face of external interference. This characteristic serves to enhance the reliability of data transmission, making it an essential benefit in digital communication systems.