Have you tilted your lnb? For certain locations the lnb needs to be tilted a certain number for degrees. If you go to
sadoun.com and click on
installation support and then click on dish calculator. Then just pick what satellite you want and where your located and it will give you the lnb tilt. Depending where your at theres clockwise tilt and counterclockwise tilt. Think of it like this:
IF you dont tilt the lnb this is what could happen.
You set your dish so that when the signal comes down it hits a certain spot on the dish and it bounces off that spot to hit the lnb, if you dont have the lnb pointed correctly, the signal could sidswip the lnb and not be transmitted into your receiver. Thus you wont get any quality.