no it works with analogue i use all conventional channels. It is used to group channels from different groups in to one on the fly ie. when you are on an incident and don't have access to the software. to use it it must be enabled in the software in the common->common->security menu. once it is enabled you can go to the channel you want to ad then turn the radio off. next hold down the p1 and p3 buttons while turning it on the press p0 to copy that channel into the tactical zone. do this for as many channles as needed. to erase do the same but go to the channel in the tactical group.