What can an improperly configured radar system lead to?

An improperly configured radar system can lead to confusion for the radar operator because incorrect settings or calibrations can cause the radar display to provide misleading or inaccurate information. This confusion might manifest as difficulty in distinguishing between actual targets and noise, misinterpretation of the radar returns, or difficulty in tracking moving objects. Effectively, when the radar system is not optimized or properly tuned, the operator may struggle to make logical decisions based on distorted data, leading to potential operational errors.

In comparison, accurate target tracking, increased detection range, and reliable echo readings depend on proper configuration of the radar system, which is the opposite outcome of what occurs with improper settings. Therefore, while the other options suggest beneficial outcomes of a well-functioning radar system, confusion for the operator highlights the negative consequences of misconfiguration.