Identify one advantage of using digital modulation techniques.

The advantage of using digital modulation techniques is that they provide increased resistance to noise and interference. Digital signals are inherently more robust compared to analog signals. This robustness arises from the way digital data is represented, using discrete levels (usually two levels corresponding to binary 0 and 1), which makes it less susceptible to changes in amplitude that can occur due to noise during transmission.

In practical terms, digital modulation techniques utilize error detection and correction algorithms, which further enhance the reliability of the transmitted data. When a signal does encounter interference, the discrete nature of digital information allows for better recovery of the intended message, ensuring that the integrity of the communication is maintained. This capability is particularly important in environments with significant electrical noise or when signals need to be transmitted over long distances, where the likelihood of degradation is higher.