Currently Phase 1 but there are Phase 2 systems out there and if your going to upgrade might be best to cover that as well, a BCD996P2 or a BCD325P2 would be good choices and not have to worry about learning cure of the latest Uniden Models 536HP or the 436HP. Also a good candidate is the Whistler TRX series with the ability to do DMR and NXDN without upgrade fee's.