What phrase indicates that the TPT is set up on the correct channel?

The phrase "Channel xx is announced" indicates that the Tactical Communications Procedure (TPT) is set up on the correct channel because it directly communicates that the specific channel has been identified and is ready for use. This confirmation is essential in ensuring that all personnel are aware of the channel being utilized for communications, which is crucial for effective coordination during operations. Announcing the channel provides clear and unambiguous information to all team members, ensuring that there is no confusion about which communication pathway is in use.

Other phrases might imply readiness or monitoring status, but they do not specifically confirm the activation of a particular channel like the announcement does. Announcing the channel is a key step in operational communications, especially in the context of the Coast Guard, where precise and clear communication is vital for safety and efficacy during missions.