Brad dont give up on it. I have the 320 with the DC40's and love them. Got the long range antennas from Buzzards roost with the mag mount truck antenna ( makes a big differnece with the truck antenna). Getting anywhere from 3 to 5 miles with no troubles. I would recommend buying any of your stuff from the buzzards roost though. His cutomer service has been second to none.I still put the regular tracking collars on cause my heathens tend to get out of range on a regular basis. Just helps getting them back on the GPS a whole lot quicker and easier. Hope you get them worked out.