What is the Outbound ground frequency at O'Hare?

The correct designation for the Outbound ground frequency at O'Hare Airport is indeed 121.750. This frequency is specifically utilized for coordination of ground traffic as aircraft are preparing for departure. It facilitates communication between pilots and ground control to ensure safe and efficient taxiing of aircraft, which is particularly crucial in a busy airport environment like O'Hare.

This frequency allows for clear and precise instructions to be communicated to pilots regarding their movements on the taxiways and runways, helping to prevent collisions and streamline the flow of air traffic. Maintaining awareness of the appropriate ground frequency is essential for pilots and ground personnel alike to ensure operational safety and efficiency.