Hi, I'm a newbie to this FTA stuff. I currently have DirecTV and intend on keeping it. I would like to add a FTA receiver to simply add more channels to my current programming. The housing association where I live requires that we use a shared dish for DirecTV. This means I will not have any access to the dish and, therefore, can not move it or point it in another direction. Will this prevent me from truly being able to use an FTA receiver effectively?