What does a radar beacon do?

• A. Reflects radar signals back to the source
• B. Tracks aircraft movements
• C. Communicates with ground control
• D. Scans weather patterns

Answer: (A)

A radar beacon primarily functions by reflecting radar signals back to the source. This is essential for identification and tracking purposes in air traffic control. When a radar system emits a radar signal, the beacon responds by sending back a signal that can convey important information about the aircraft's position and identity. This process enhances situational awareness for air traffic controllers and helps in ensuring safe and efficient air traffic management.

Other options, while related to radar and aviation, describe different functions. For instance, tracking aircraft movements encompasses a broader range of technologies and methods, including various radar types and GPS. Communicating with ground control typically involves radio transmissions rather than the direct reflection provided by a beacon. Scanning weather patterns relates more to weather radars and systems designed specifically for meteorological purposes rather than the reflective capabilities of a radar beacon.