How can you join a digital repeater’s “talkgroup”?
Register with the local Frequency Coordinator
Register with the digital repeater control operator
Program your radio with the group’s ID or code✓Bonne réponse
Program your radio with the DTMF tone used by the talkgroup
Explication
A talkgroup is identified by a number that your radio includes in its transmissions, so joining one is a matter of programming that ID into the channel. No registration with a coordinator is involved, and talkgroups are not selected by DTMF.