Which squawk code is associated with NORDO?

The squawk code associated with NORDO (No Radio) communications is 7600. This code is specifically designated for aircraft that are experiencing a total radio failure and are unable to communicate with air traffic control or other aircraft. When a pilot transmits this code, it signals to controllers that the aircraft is unable to establish radio contact, which affects how air traffic control manages the aircraft's movements and safety.

Understanding the significance of squawk codes is essential for ensuring effective communication and maintaining safety in airspace. Each code has a specific purpose: 7500 is used for hijacking situations, 7700 signifies an emergency, and 7400 does not apply as a standard squawk code. The choice of 7600 for NORDO ensures that all parties involved are informed of the aircraft's communication limitations, facilitating appropriate actions by air traffic control.