I am having an issue with a satellite. I have the mast plum, I set the dish to the desired skew and elevation. My meter reads 110 & 119 with solid signal. When I do a check switch only 119 shows and the next ports display conn w/ x and conn w/ x. I tried replacing using DP LNB with the same results; also replaced all fittings, and did a line by-pass all with the same results. Any ideas...I am thinking this is the receiver?