On calm, windless days, I get strong signals from 61.5, 110 and 119 satellites. On windy days, 61.5 and 110 are good, but 119 is extremely erratic, at times losing the signal altogether. What I can't figure out, is that 110 and 119 are on the same dish. If the dish is loose, shouldn't it affect both 110 and 119? Is their something I can do to rectify this? If I put in a service call, I would be charged $29. Any comments or ideas would be appreciated.