The following response is a continuation of posts #2 and #6 and #8 and # 10 in this thread.
Another aim direction to try is about 18 degree magnetic compass direction.
The aim directions are to get the most amount of Digital Tv stations/channels with out using a antenna rotator or more then one antenna.
Directional antennas such as and not limited to the HD7000R antenna receive the best at the front of the antenna and also receive to a lesser degree at , front angles , back of the antenna and back angles to the antenna.
The least amount of reception is directly on the sides of the antenna.
It is a balance of Tv station locations and signal strengths.
As always , the starting aim direction of a antenna is --> the starting aim direction.
The antenna can be , turned , moved up and down and newlocated to find the best reception.
Most Digital Tv's have a signal strength meter and some Digital Tv's also have a signal quality meter.
As always , trees and tree leaves do a real fine job of reducing or blocking Digital Tv reception and so do buildings and other obstructions including your own house.
It is best to locate the antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including your own house.
THe Digital Tv Must Channel Scan for the Broadcast Tv Channels , often named the 'Air Channels' or 'Antenna Channels' in the Tv setup menu because the Digital Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT channel scan for cable tv channels.
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If you like you can install a antenna rotator , a Channel Master CM9521A antenna rotator.
Antenna rotators Are Not Channel Surfing Friendly , must wait for antenna to rotate and not every one in the house will agree with direction the antenna is aimed.
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You can also install more then one antenna.
I recommend 2 HD7000R antennas.
The first one aimed at about 40 degree magnetic compass direction and second one aimed at about 320 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
If the 2 HD7000R antennas are on the same mast , separate the two antennas by 3 feet , one above the other.
The 2 HD7000R antennas Will Not be connected together on to one coax.
The 2 HD7000R antennas will have Separate coax and splitters and etc. All the way to the location/s of the Tv/s and be connected to a Remote control A/B antenna coax switch at each Tv/s location.
http://www.mcmelectronics.com #32-4425. , or ,
http://www.radioshack.com #15-1968.
Remote control A/B antenna switching is Channel Surfing Friendly , press the button on the hand held remote control , change antennas and keep on channel surfing.
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Or you can optimize the aim direction of one antenna and call it Ok.
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Here is the Federal Antenna Law that says Yes you can install a Broadcast Tv Antenna of any size so as to have reliable reception above the roof.
http://www.fcc.gov/mb/facts/otard.html.
Hoa's , housing coven-nuts , deeb restricted housing , and etc. , are well aware of the Federal Antenna Law that says yes you can install a broadcast Tv antenna of any size above the roof so as to have reliable Tv reception.
Some keep their mouth shut about it , Some straight out Lie and say there is no Law , and some say the truth that Yes you can install antennas above the roof.
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I have provided clear and easy to understand information and facts.
It is also true that you can do research and believe what ever you choose and install the antenna of your choice.