The following is a Teleview recommendation for broadcast Tv reception.
Move the HD7000R antenna to above the roof.
Aim the HD7000R at about 350 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
It is best to use a compass out in the open , A compass often does not indicate correctly inside of buildings.
(do not use any of the other antennas).
For 1 Tv connected use no splitter. And use no amplifier.
For 2 Tv' connected use a Channel Master CM3412 distribution amplifier.
For 3 or 4 Tv's connected use a CM3414 distribution amplifier.
As always , trees and tree leaves do a real fine job of reducing or blocking reception and so do buildings and other obstructions and so does your own house.
It is best to install the HD7000R antenna in a manner that , trees , tree leaves , buildings and other obstructions and your own house have the least amount to no amount obstructions to the , north east , north . north west.
Here are some antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com ,
http://www.channelmasterstore.com.
Here is the Federal Antenna Law that says Yes you can install , use , maintain , Tv antennas of any size above the roof or other places on your property.
http://www.fcc.gov/mb/facts/otard.html