To receive all the networks , NBC , CBS , ABC , PBS , FOX , MyNetwork , The CW , Antenna Tv , This Tv , and more.
Here is the Federal Antenna Law that says Yes you can , Install , Use , Maintain , Tv antennas of any size above the roof so as to get reliable reception.
http://www.fcc.gov/mb/facts/otard.html.
Here are 2 antennas to try at your location.
The first one is the ANT751 antenna with a Antennas direct CPA-19 preamp , Above the roof , aimed at about 220 degree magnetic compass direction.
The ANT751 is not a very directional antenna , it does have some forward gain and also receives good in all directions.
I recommend try the ANT751 first.
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The second one is , Above the roof install a Antennas Direct Clear Stream 2 Complete UHF/VHF Antenna with a Antennas Direct CPA-19 preamp.
http://www.antennasdirect.com/store/...VHF-Combo.html.
Aimed at about 220 degree magnetic compass direction.
Remove the Reflector Screen from the CS2 Complete antenna and the CS2 Complete will receive Tv stations/channels to the , west , south west , south east , east.
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Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
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For one Tv connection use no splitter.
For 2 Tv connections use a HFS-2D , 2 way splitter.
For 3 Tv's connected use a HFS-3D , 3 way splitter.
Buy the HFS splitters at ,
http://www.hollandelectronics.com , also at ,
http://www.solidsignal.com.
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So that you understand , I will clearly state your reception situation.
The Tv signals at your location are Weak.
NO you can not hide the antenna.
NO you can not put the antenna in the attic.
As always trees and tree leaves do a real fine job of reducing or blocking Tv reception and so do buildings and other obstructions.
Yes the ANT751 or Clear Stream 2 Complete UHF/VHF Antenna need to be Up High and in the Clear for reception to the , west , south west , south east , east.