What is an appropriate way to call another station on a repeater if you know the other station's call sign?

The appropriate way to call another station on a repeater when you know their call sign is to directly say the station's call sign followed by your own call sign. This method is straightforward and conforms to the standard practices of amateur radio communication. By stating the other station's call sign first, you are indicating to everyone on the repeater whom you intend to communicate with. You then identify yourself, allowing others listening to know who is attempting the contact.

Using this approach not only adheres to proper etiquette but also helps to minimize confusion in communications, especially in busy environments where multiple operators might be transmitting. Being clear and concise ensures that your call is recognized and can facilitate an efficient exchange.

In contrast, methods such as using "break, break" or waiting for a station to call CQ can lead to misunderstandings and are not the most effective way to initiate a contact with a known station.