I looked up my channels on antennaweb.org and to get most of the channels in my area it states that I need to get a large directional w/ preamp. How large is large? I am only 10 miles from the towers but I still need a large antenna? Just doesn't seem right. Would getting a medium antenna with a booster help? I have to point the antenna towards southwest, south, and southeast all at the same time to get the channels. I know I can get a rotator but would a multidirectional antenna help out in thie situation? Too confused on what antenna I actually need.