What does "ADS-B" stand for?

• A. Automated Data Surveillance–Broadcast
• B. Automatic Data System–Broadcast
• C. Automatic Dependent Surveillance–Broadcast
• D. Advanced Dependent Surveillance–Broadcast

Answer: (C)

The term "ADS-B" stands for "Automatic Dependent Surveillance–Broadcast." This system represents a pivotal advancement in aviation surveillance technology. In ADS-B, "Automatic" signifies that the system functions without the need for pilot or air traffic controller interaction; it operates automatically based on data from the aircraft. "Dependent" refers to the reliance on onboard navigation systems, such as GPS, to determine the aircraft's precise position. The "Surveillance" aspect indicates that the system monitors the position and other parameters of aircraft. Finally, "Broadcast" means that the information is transmitted to ground stations and other aircraft, providing real-time situational awareness.

Choosing this answer reflects an understanding of how modern surveillance systems improve air traffic management and safety by enabling more accurate tracking of aircraft positions. The other options fail to accurately capture the essence of what ADS-B stands for, as they either misinterpret the terms or introduce incorrect terminology that does not exist in the context of current aviation standards.