What is a common issue that can affect downstream signal quality during a sweep?

Improper amplitude settings can significantly affect downstream signal quality during a sweep because it dictates how strong or weak a signal is being transmitted. If the amplitude is set too low, the signal might not be adequately received, leading to a weak downstream signal that can result in errors and inconsistencies in the data being transmitted. Conversely, if the amplitude is too high, it could cause distortion or clipping of the signal, which also negatively impacts the quality and clarity of the downstream signal.

Setting the correct amplitude ensures that the signal remains within acceptable levels, providing a clearer and more stable connection. This balance is essential for maintaining the integrity of the downstream signal and achieving optimal performance in any communication system. The other options, while potentially relevant to signal quality, do not directly pertain to the immediate effects of amplitude settings during the sweep process.