I am a Premium member been here for years. What I am looking for say Zone 1 what channels are in Zone 1 and so forth. I know what I am looking for, someone a while ago posted up a channel matrix of each zone and what was in them channel wise. for SDPD. Short of reading a radio which is not going to happen in my lifetime, and NOT by me, I would not even if I could. I was just asking if there is one around. I do know fire does have a print out of zones and channel line up they give to the guys. SDPD did the same thing awhile ago with their officers, so when told to go to a certain channel they looked at the paper and found the correct zone and channel to go to. But I do thank you for your help in posting the RCS system.