A calibration check after maintenance is performed primarily to verify that the radar meets specifications for which aspects?

• A. Range, Bearing, and Track Performance
• B. Antenna Tilt
• C. Display Brightness
• D. Power Consumption

Answer: (A)

After maintenance, a calibration check focuses on confirming that the radar’s measurement and tracking outputs match the system’s specifications. The most important aspects are how accurately it can determine distance (range), the direction to a target (bearing), and how reliably it can acquire and maintain a target as it moves (track performance). Range accuracy ensures the displayed distance corresponds to actual distance; bearing accuracy makes sure the azimuth reference is correct so targets appear where they truly are on the display; and track performance verifies that once a target is detected, the radar consistently follows it through scans, updates its position correctly, and maintains the track without drifting. Antenna tilt, display brightness, and power consumption matter for alignment and usability, but they are not the primary focus of a post-maintenance calibration aimed at confirming the radar’s fundamental measurement and tracking capabilities.