For the 396, program it as Motorola (MOT on the menu screen) and then P25. Then just program the frequencies and talk groups and it will work. You don't program any base frequencies, offset channels or spacing for a P25 Standard System in the 396. Manchester Twp. is the same type of system and I programmed it that way and it works fine. As a matter of fact, when you program a system as MOT P25 in the 396, there is nothing on the menu that will allow you to program the base, offset or spacing, so you really can't screw it up.