Final answer:
Transmissions with aircraft on surveillance final approach usually occur approximately every 5 minutes to ensure effective communication between the pilot and the air traffic controller.
Step-by-step explanation:
Transmissions with aircraft on surveillance final approach usually occur approximately every 5 minutes. This is to ensure effective communication between the pilot and the air traffic controller during this critical phase of flight. Regular transmissions at shorter intervals allow for real-time updates and coordination, reducing the risk of collisions and enhancing safety.