What is the purpose of radar calibration targets?

• A. To provide visual targets for pilots
• B. To calibrate the radar's color scale
• C. To verify and adjust the radar’s range, bearing, and scale accuracy
• D. To measure wind shear

Answer: (C)

Radar calibration targets provide fixed, known reference points so the system’s measurements can be checked and corrected. By comparing the radar’s reported range and bearing to a target whose position is precisely known, technicians can adjust timing, antenna alignment, and processing so the displayed range, azimuth, and overall scale are accurate. This keeps radar measurements reliable for tracking and safety. They aren’t about giving pilots visual cues, calibrating color displays, or measuring wind shear, which is why those options don’t fit.