Old MARCS two steps, new MARCS-IP one step
MARCS (old Moto Type II system):
1.You need to update the CC's (remove the old 86X, add the new 85X)
2. You also need to add/set the rebanding tables in your scanner.
MARCS-IP (new Project 25 system)
1. For 800 Mhz sites you only need to update the CC's (remove the old 86X, add the new 85X) . Project 25 systems can include the rebanded channel information within the CC data. Marcs has implemented that feature.