What does RADAR stand for?

RADAR stands for Radio Detection and Ranging. This term reflects the fundamental principles of how radar technology operates. The "radio" aspect refers to the use of electromagnetic waves in the radio frequency range to detect objects. "Detection" describes the capability of radar systems to sense the presence of these objects, while "ranging" pertains to determining the distance to those objects by measuring the time it takes for the emitted radio waves to reflect off the object and return to the radar system.

The correct answer highlights the important combination of detection and distance measurement that is central to all radar functions, allowing operators to assess the location and movement of various objects, such as vehicles or aircraft. Understanding this terminology is essential for anyone involved in radar operations, as it lays the groundwork for the principles and practices that follow in the field.