I decided to run with a cb but heres the problem. Uniden 78 elite with 18 ft cable hook to a wilson 2000 and can't get swr below 3.1. Even tried a 9 ft cable with worse results. I got good ground even hook it to my car but still no luck. Just a couple times got it lower the same day I took it to Bobs cb and he said good to go. Next day back up over 3.1 Any help would be great!!