YOU MUST HAVE A DISHPRO COMPATABLE RECEIVER TO USE THE DISHPRO LNB. IF YOUR RECEIVER MODEL NUMBER HAS THREE DIGITS (111, 301,311, 322, 501, 508, 510, 522, ECT.) IT WILL WORK WITH THE DISHPRO
DISH 500. IF YOUR RECEIVER MODEL NUMBER HAS FOUR DIGITS (1000, 2800, 3000, 3900, 4900, ECT) IT WILL NOT WORK WITH A DISHPRO LNB UNLESS YOU PURCHASE AN ADAPTER. (IT IS NOT CHEAP) SOMETIMES EVEN WITH THE PROPER RECEIVER WITH THE PROPER LNB YOU WILL GET A SIGNAL OF ZERO EVEN THOUGH YOU ARE ALIGNED ON THE 119 SAT. RUNNING THE CHECK SWITCH TEST WILL USUALLY CORRECT THAT. BE SURE WHEN ALIGNING DISH AND DOING CHECK SWITCH THAT YOU HAVE SELECTED THE 119 SAT AND TP 11.