Question about Motorola TLKR T82 Extreme Quadpack

I don't have the T80 but both are 100% compatible in terms of frequencies. The T82s have a sync button (group mode on the T80). I'm not sure if this is compatible by pressing a button. In any case, it is possible manually.

8 channels? We have 16 available now, and are allowed a removable antenna, too.