hey, I'm new to this site, so I apologize if this is not the correct forum. I just acquired a realistic pro-2006 scanner and I can pick up the local sheriffs dept. fairly well, but I'm having a hard time picking up ems or anything else. I believe the police dept. is digital so I know I'm out of luck there, but I was thinking about getting an external antenna to receive the ems (and whoever else I can) better. The sheriff dept. frequency is 453.475, the ems is 151.055 and 155.325, other frequencies are mainly in the 151-155 range. Would a j-pole or slim jim antenna help? I live out the country so there are plenty of trees. I live about 13 miles southeast from downtown Natchez. Thanks in advance