What is the proper way to communicate with another amateur operator using a repeater?

When communicating with another amateur operator using a repeater, the proper procedure is to send your callsign first, followed by the callsign of the repeater, if necessary. This establishes who is transmitting and ensures that the repeater is identified in a way that is consistent with amateur radio practices. Using the repeater’s ID is also a good practice since it helps confirm the specific repeater being utilized and adheres to the legal requirement of identifying your station.

Proper communication protocols are essential in amateur radio to maintain etiquette and ensure that all operators are aware of the active communication channels. Sending just an audio signal, speaking directly to the operator without using the repeater, or transmitting only in simplex mode does not follow the standard methods of communication necessary for using repeaters effectively.