Hey guys, its been a really long time since I have done anything with my scanner. I have a pro-90 that was given to me by my grandmother. I found this awesome site not too long ago, but I am having a small problem understanding some of the stuff. Like, I was looking at the Camp Lejeune System and I got the primary numbers input and I can get stuff from that. But I start to look at the other stuff on the page, such as the Camp Johnson schools or better known as MCCSSS, and I am trying to figure out, what the DEC is for. Do I input that in my scanner? Or do I have to input another number in front of that? Or what? Im somewhat confused by that. Can anyone help me with that? I would be most gracious. Thanks