What is indicated by a multi-path return on the AN/TPQ-50?

A multi-path return on the AN/TPQ-50 indicates signal degradation. This phenomenon occurs when a signal reflects off various surfaces, such as buildings or terrain, causing multiple signals to arrive at the radar at different times. The result is a complex signal environment that can distort the radar's ability to accurately determine the target's parameters.

In practical terms, signal degradation affects the clarity and reliability of the data the radar system provides. This can complicate the identification of enemy artillery and other target tracking, potentially leading to inaccurate assessments or location errors. Understanding multi-path returns is crucial for operators, as recognizing and mitigating these effects improves the overall effectiveness and accuracy of the radar system in determining the locations of threats.