i`m trying to install new dish for a friend and having a hell of a time.let me explain.it`s a new dish and swm 3 lnb from solid signal and i`m using a tarcker lite meter.i can`t get a signal no matter what i try ,different lnbs different location and many hours of searching. i even took the dish to my house and tried it on my mount with my receiver and still can`t get it . i have a slimline dish at my house with 3lnb swm, i swapped out the dish and used my lnb ,nothing.i then noticed that the lnb arm is about 3/4 of an inch longer then the arm on my dish and the dish itself is slightly bigger in width and height, i`m thinking this is the problem and the focal point has to be different.my dish has slimline printed on it the new one does not.got any ideas?thanks for any help