Be sure to consider what Helmsey
posted. I've read about several who got so frustrated with HD attempts, they jettisoned their equipment. Some gave up completely; some dropped back to SD. Whatever you choose, your equipment must match... receivers, antenna, etc. I studied my home LNB and other components and ordered a matching antenna, etc., for RV travel. All that stuff has to be right BEFORE a person even attempts assembly and alignment. In another DIRECTV thread (do a search), I posted a link to the antenna package I intended to buy and got "approval/confirmation" from an expert here. I suggest the same for you.