What is the function of the frequency and beacon code information in an air traffic clearance?

The function of frequency and beacon code information in an air traffic clearance is to provide communication details. This is essential for pilots to establish and maintain contact with air traffic control (ATC). The specific frequency allows the pilot to tune their radio to the correct channel for communicating with ATC, ensuring that they receive instructions, updates, and important information regarding their flight.

Additionally, the beacon code, often referred to as the transponder code, is used to assist ATC in tracking the aircraft on radar. When pilots enter this code into their transponder, it sends a signal that allows ATC to accurately identify the aircraft's position and altitude on their radar screens. This information is crucial for maintaining safe separation between aircraft and for managing traffic effectively.

In contrast, while the other options suggest relevant functions—such as emergency procedures, navigation aids, and flight plan updates—they do not directly pertain to the specific purpose of frequency and beacon code details outlined in the clearance communication.