You'll be able to hear whatever is in range of your antenna. In the hills you're probably looking at four to five mile range on a good day. Up here on the flat land I can easily hit fifteen miles range. This is contingent upon the broadcast equipment, too, but you don't have any control of that. You can get more range with a different antenna, like one mounted to your car or home. Those options, however, will limit to some degree the scanner's usefulness while railfanning.