Hi. I live in Wilmington and like to listen to Sector 1 and 3 dispatch and the DELCo. fireboard. I tend to loose them around the city. I actually live in Talleyville. About 2 miles from the PA/DE Border. I just bought a 5db 490-512 mobile antenna. I was wondering how good this antenna would work. i tend to loose Sector 1 in the city. though i am using a Wilson Cell Antenna with a BNC connector on it. I'm wondering if my range will increase. Thanks?