I installed a sportser 4 a month ago. No matter where I was my signal was always maxed out. Over that time period signal strenght has been going down, and finally started going away all together. I now only show one bar for signal strength when I have a signal. The rest of the time it just shows aquiring signal. Another funny thing happened. Sitting in my work place parking lot I noticed I had two bars, with the third going in and out. I unplugged the antenna just to check the plug condition, and my signal strength stayed the same. I left it like that and it stayed good for about 15 minutes. I live about 35 miles south of Little Rock and also have noticed the further away from Little Rock the worse the signal is. My wife has an older srortster that I installed in her car two years ago and it works just great. I am wondering if this is an issue with the sportster 4 model.