A simple reception situation.
Install a ANT751 antenna Above the roof aimed at about 300 degree magnetic compass direction.
Here is how aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
http://www.solidsignal.com has the ANT751 antenna that comes with a J mount antenna mount.
For 1 Tv connection use no splitter and no amplifier.
For 2 Tv's connected use a Channel Master CM3412 distribution amplifier.
For 3 or 4 Tv's connected use a CM3414 distribution amplifier.
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Do not use any of the Satellite , splitters , diplexers , etc. .
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Mount the ANT751 , Up High.
As always trees and tree leaves do a real fine job of , reflecting , reducing , blocking Tv reception and so do buildings and other obstructions.
Install/mount the ANT751 where there is the least amount to no amount of obstructions of the directions , north west , west , south west.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.channelmasterstore.com.
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The Tv's Must Channel Scan for the Digital Broadcast Tv Channels , sometimes named the 'Air Channels' or 'Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT channel scan for cable tv channels.