What task does the receiver section of the transponder perform?

The receiver section of a transponder is responsible for receiving and amplifying signals. Transponders operate by reacting to signals they receive, typically from radar systems or other communication sources. Upon receiving these signals, the receiver section processes them to ensure they are strong enough to be useful before forwarding them to the appropriate circuit for additional processing or action.

Amplifying the received signals is crucial because radar signals can be weak when they reach the transponder. The transponder must ensure it can detect and respond accurately to these signals, which is essential for effective communication with air traffic control and other aircraft. This process is fundamental for accurate identification and tracking in navigation systems, particularly in aviation, where safety and precision are paramount.

The other tasks listed do not pertain to the receiver section of the transponder; generating signals pertains to a different component, determining airspeed relates to other equipment, and encrypting data does not specifically apply to the primary function of the receiver section.