You will be extremely happy with this antenna. Its size is about 18" x 24" so it is easy to mount. Putting it together took about three minutes, could have taken less, but who read the directions. Before mounting I just had it resting on a couch in the general direction of the towers 30 miles away. Each channel hit the high 80's on my Dish Network 811. Outside, never any problems. Wait on the pre-amp until after you install. If you buy their J-Mount, it takes about 5 minutes to install. Good Luck