Why does the signal strength meter on my ViP 722 in the Point Dish screen, go all the way up to 125? Is the number next to "Signal" the percentage? It's usually around 70-80 on a cloudy day on the 119 satellite, and 60-ish (on a cloudy day) on the 129 satellite. Same numbers on the 110 satellite (70-80 on a cloudy day)