4 Pack DirecTV Slimline Back Assembly Bau4r2 for Kaku Slimline Dish

The back assembly unit is responsible for the fine-tuning of the DIRECTV Slimline Dish. Connect the dish Slimline Reflector to the J-mount. The BAUhas fine-tuning adjustments for azimuth, tilt elevation to lock in multiple satellites at once. The back assembly hardware is what goes between the mast and a satellite dish to fine-fine position for a solid satellite signal Compatible with masts that have a 2" outer diamter Uses marked adjustment knobs with numbers so you have full control of the small tuning needed for great signal