A Winegard HD7696P antenna with No preamp , aimed at about 185 degree magnetic compass direction will receive All of network channels , NBC , CBS , ABC , PBS , FOX , The CW , My Network , ION , and -> Many More <- digital main channels and digital sub channels.
For 1 Tv connected use no splitter.
For 2 Tv's connected use a 2 way splitter.
For 3 Tv's connected use a 3 way splitter.
Here are some above the roof antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com.
But 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.winegarddirect.com ,
http://www.amazon.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.
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As always , trees and tree leaves and buildings that are close and in the direction of reception will reduce or block reception.
Locate the HD7696P antenna where there is the least amount of trees and tree leaves and buildings in the direction of reception.