Radar Sensitivity Time Control

Radar Sensitivity Time Control (STC) is a feature found in radar systems that allows for the adjustment of the receiver sensitivity as a function of time. It is used to compensate for the varying strength of radar echoes that are received at different ranges.

The main purpose of STC is to maintain a consistent level of displayed radar echoes, regardless of the distance from the radar antenna. Without STC, radar echoes from targets at different ranges would appear with varying levels of brightness on the radar display.

STC works by automatically adjusting the receiver sensitivity based on the range of the target being detected. As the radar signal travels further from the antenna, it becomes weaker due to the inverse square law. STC compensates for this by increasing the receiver sensitivity at longer ranges, allowing for a more consistent display of radar echoes.

By using STC, radar operators can effectively detect and track targets at different ranges without having to manually adjust the receiver sensitivity. This feature is particularly useful in situations where there are significant variations in target distances, such as in maritime or aviation applications.

Overall, Radar Sensitivity Time Control is an important feature in radar systems that helps to ensure accurate and consistent detection and display of radar echoes at different ranges.