In the context of radio communication, what does "OVER" indicate?

The term "OVER" in radio communication indicates that the transmission has concluded and the sender is expecting a response from the recipient. This term serves as a clear signal that the speaker has finished their message and is inviting the other party to reply. It helps prevent misunderstandings in communication, which is vital in aviation and other fields where clarity is crucial.

The use of "OVER" ensures that both parties are aware of the state of communication; one party is finished speaking, and the other is prompted to respond. In contrast, other phrases or indicators may suggest different stages of communication, such as a complete end of the conversation or a clarification request, which do not convey the same expectation of an immediate response.