I was looking around in the MPSCS database and found myself looking at FCC database information for the Washtenaw County simulcast site. I was looking at the licenses and frequencies and basically got completely confused. I see three call signs with a total of 8 street addresses for a total of 7 sites comprising the system and not all exactly the same frequencies listed for each given call sign. I'm not trying to solve a problem with anything scanning wise, just trying to understand what makes that system tick. I had thought I had a basic understanding of a simulcast system, multiple towers broadcasting on one FR frequency but is it still that simple in practice despite there seeming to be more to it as observed above?