I am currently adding the IHP on my BCD536HP using sentinel. Will be traveling in the west side of the state. In programming with sentinel, I have 5 sites/towers listed using RR. While editing the sites I noticed that the location is 40 miles for all of them. I am inclined that the miles need to be less then that. The reason that I think so is because it will slowed down my scanning speed? I know that the P25 systems in Missouri it makes a difference. I see that Iowa patrol is going to upgrade there system this year, anybody know what they will be using?