No, the system is programmed on a per talk group basis, and can be changed dynamically depending on the tactical situation. The site programming depends on agency needs and their areas of service. For example. the state police barrack in Worcester County can be heard on the two neighboring sites, Ocean City and Wicomico. The state police barrack in Salisbury can be heard on the neighboring Worcester and Dorchester sites. It also depends on individual subscriber affiliations, so it can get complex.I just recently put MD first into my Unication G4. I've been in King George, VA and Charles Co, MD more recently. I am currently receiving off the Charles site now in Spotsylvania, VA. I am amazed on what I am hearing. Does every talkgroup in the state simulcast on every site?