What is the primary difference between a surveillance radar mode and a tracking radar mode?

What is the primary difference between a surveillance radar mode and a tracking radar mode?

• A. Surveillance uses high-precision tracking to predict future positions; tracking has broad area coverage.
• B. Surveillance is only used for calibration tasks; tracking is used for training.
• C. Surveillance scans broad areas to detect targets with coarser resolution and fast sweep; tracking concentrates on single/few targets with higher precision and updates.
• D. Surveillance operates in infrared; tracking operates in microwave.

Answer: (C)

Surveillance radar modes are built for catching what’s out there over a wide area. They sweep quickly across large sectors, using coarser angular and range resolution so you can cover more space and detect multiple targets. Tracking radar modes, in contrast, narrow the focus to one or a few targets, providing higher precision in position and updates to maintain an accurate track. This combination—broad-area detection with fast scanning for surveillance, versus high-precision, frequent updates for tracking—best captures the primary difference. The other statements either misstate the role (calibration or training) or imply a wavelength difference, which isn’t the core distinction.

Surveillance radar modes are built for catching what’s out there over a wide area. They sweep quickly across large sectors, using coarser angular and range resolution so you can cover more space and detect multiple targets. Tracking radar modes, in contrast, narrow the focus to one or a few targets, providing higher precision in position and updates to maintain an accurate track. This combination—broad-area detection with fast scanning for surveillance, versus high-precision, frequent updates for tracking—best captures the primary difference. The other statements either misstate the role (calibration or training) or imply a wavelength difference, which isn’t the core distinction.