People forget about frequencies especially in the vhf and uhf bands which 600, 700, 800 mhz after apart of. Every now and then when the atmosphere charges up especially in the e-layer, you get a bounce off radio waves called skip. And during the right tone, those radio waves will carry for miles. Not unheard of hearing or seeing tv and radio signals miles from where the were. It that frequency range, signals have a habit of traveling several states because of e-skip. Propagation always has play in it. There is no defeating physics.