To comply with manufacturer noise and distortion specifications, the modulator output level should be:

The correct choice emphasizes the importance of operating within the manufacturer's specified range for output levels. This range is established based on rigorous testing to ensure the modulator performs in an optimal manner, minimizing noise and distortion. Operating within these parameters helps ensure that the signal remains clear and that the quality of the transmitted data meets the necessary standards for effective communication.

Maintaining the output within the specified range is crucial for preventing issues such as signal degradation, which can occur if the output level is too low or too high. A low output might result in insufficient signal strength, leading to poor reception or data loss, while a high output can induce distortion, complicating the demodulation process and affecting overall system performance.

By adhering to the manufacturer's specified range, engineers and technicians can effectively manage system performance, ensuring reliability and adherence to standards that support operational integrity. This approach displays a commitment to quality and efficiency in communication systems.