When trying to import a large statewide system, such as MPSCS, you can choose which transmit sites you want, as well as which departments (agencies, cities or counties, fire & police departments, among others) and import them into a programming file. For sites, only program the ones in range of your location. For talkgroups, import only those within range, in your local area. Generally, each site only carries radio traffic for areas that the signal covers. So, while you can see talkgroups for a different city or county, well away from your area, when looking at your import options, there is no point importing their talkgroups. The only time you might hear out of area traffic is when a unit from that distant area has come into your vicinity, usually on official business like dropping off or picking up a prisoner or documents. In that limited scenario, if he or she has their radio still set on their local talkgroup, that traffic would also show up in your area until they either left the area, or changed their radio to a YGID local to you.