What can be said to establish a frequency change for the pilot of an aircraft?

To establish a frequency change for the pilot of an aircraft, communicating the instruction clearly is essential for ensuring that the pilot understands which facility to contact and on which frequency. The correct choice involves specifying the facility and the new frequency, making it straightforward for the pilot to shift their communications as needed.

This choice effectively contains both the necessary information that a pilot requires to make a successful frequency change: the name of the facility and the specific frequency for them to turn to. It clarifies the action the pilot should take and helps prevent any potential confusion or miscommunication during a critical phase of flight communication.

In contrast, other options may lack specificity or clarity. For instance, suggesting a frequency change without naming the facility may leave the pilot unsure of where to direct their communication. Meanwhile, more vague instructions might lead to delays in coordination or misunderstandings, as the pilot may not be entirely clear about the new operational context. Ultimately, the context provided in the correct choice supports effective and safe air traffic communication practices.