Really confused on which crystals i need for columbus and surrounding communities, would like police, fire, weather, i understand most have gone digital but there are some that arent any help would be grateful, just need a list of whixh crystals to get and what setting to have them on, L,H, or U/T i have a bearcat 4, just want to receive some type of transmission, thankyou, my email cjmpvb@gmail.com