What information must be specified when transferring radio communications?

When transferring radio communications, it is essential to specify the facility name or location name along with the terminal facility to be contacted. This ensures that the communication is directed to the correct entity responsible for managing the airspace or providing services relevant to the aircraft. Properly identifying the facility helps avoid confusion and maintains the efficiency of communication, which is crucial for safety and operational effectiveness in aviation.

While other options may contain relevant information for various contexts, they do not capture the core requirement of clearly identifying the facility involved in the communication transfer. Flight numbers, aircraft registrations, or weather updates are important pieces of information but are not central to the act of transferring the actual radio communication itself. The focus is on establishing contact with the appropriate terminals or facilities to facilitate the continuing coordination of the flight.