I previously bought a Slimline system system that just didn't work right. The signal strengths were way down. Lots of trial and error testing including replacing the LNB. Others who bought this system complained about the exact same thing. Nothing helped. I finally determined that the shape of the reflector or arm geometry was wrong. I bought the current system and couldn't be happier. It is a lot more than just changing out the reflector mechanically. The LNB, arm, and mounting assembly must be exactly matched to the reflector or it just won't work. Trust what I am saying. Been there, done that. Best of luck to you HTElectrical.