I think he means that the Duke system broadcasts radio aliases. If you are using DSDPlus Fast Lane (and maybe you are not) and are using the latest version, you should see radio aliases pop up for certain radio IDs that end up communicating on various talkgroups. And in those cases, although the talkgroups may be known (and not necessarily new), it would be very handy to know any radio aliases tied to any particular radio IDs.The ones listed is only ones I see on dsd.