I decided to buy a digital satellite receiver to get better television quality in the bedroom, I connected it to an old Sky dish that has been not in use for a few years now but the signal strength is around 83% and the signal quality is 0%, how do I raise the signal quality? 

I took the box to a relatives house to see if it was the box that had the problem, but it worked perfectly fine at the other house but not at mine and I am doing the same thing.

Any help would be grateful