I've studied multiple Wikis on how P25 trunking systems work but I don't quite get how everything relates. In the Portland Public Safety system, there are eleven sites. Does that mean that some talk groups use certain sites exclusively?
And there's the "Simulcast Backbone" site. Does that mean that everything on the other sites is also broadcast on this site?
Tri-met is especially confusing. They're on this system yet they also have a separate 100% digital system that they also use. Are they for different purposes?
And there's the "Simulcast Backbone" site. Does that mean that everything on the other sites is also broadcast on this site?
Tri-met is especially confusing. They're on this system yet they also have a separate 100% digital system that they also use. Are they for different purposes?