When using radar for collision avoidance, which of the following is not a radar-provided capability?

When using radar for collision avoidance, which of the following is not a radar-provided capability?

• A. Detecting other vessels.
• B. Providing range and bearing to targets.
• C. Helping assess collision risk.
• D. Displaying weather forecasts.

Answer: (D)

Radar used for collision avoidance detects objects by their echoes, giving you range and bearing to targets. By watching how those targets move relative to your own vessel, the system helps you assess risk and predict potential conflicts, including calculating where and when your paths might intersect (Closest Point of Approach and time to CPA). Weather forecasts, on the other hand, are not produced by this radar system. Some setups can display weather-related echoes if a weather radar is installed, but forecasting weather relies on meteorological data and models provided by weather services, not on the collision-avoidance radar’s echoes.

Radar used for collision avoidance detects objects by their echoes, giving you range and bearing to targets. By watching how those targets move relative to your own vessel, the system helps you assess risk and predict potential conflicts, including calculating where and when your paths might intersect (Closest Point of Approach and time to CPA). Weather forecasts, on the other hand, are not produced by this radar system. Some setups can display weather-related echoes if a weather radar is installed, but forecasting weather relies on meteorological data and models provided by weather services, not on the collision-avoidance radar’s echoes.