How do you initiate a DME hold?

To initiate a DME hold, it is crucial to set the desired frequency in the active position. This process involves selecting the specific frequency associated with the DME you wish to hold. By ensuring this frequency is active, the system can accurately identify the DME signal, allowing the aircraft to navigate effectively to the specified waypoint while holding its position.

Setting the appropriate frequency serves as the foundation for executing a DME hold, as it enables the aircraft's navigation system to communicate with the ground-based DME station. Once the frequency is active, the pilot can then engage in the appropriate procedures, including pressing the HOLD button, if available, to establish the hold.

Understanding this sequence highlights the importance of the frequency selection as the first step in successfully conducting a DME hold.