I expect that Current Plus Pending Applications Included of Digital Tv stations/channels in the the Green and Yellow reception zones will be received with antenna in the attic.
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Here is the Federal Antenna Law that says Yes , a Large and Larger Antenna can be , installed , Used , Maintained , Above the Roof so as to have Reliable Reception.
http://www.fcc.gov/mb/facts/otard.html.
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If there are reception issues with the HD7696P antenna in the attic with the Green and Yellow zones Tv stations/channels.
Move the HD7696P antenna to Above the roof.
The HD7696P antenna is a , Heavy Duty , Strong and Sturdy Antenna.
Here are some antenna mounts that do not put holes in the roof.
http://www.ronard.com/34424560.html.
http://www.ronard.com/ychim.html.
Buy the ronard antenna mounts at ,
http://www.solidsignal.com , by typing the word ronard in the solidsignal search box.
As always , Attics ARE NOT a reception friendly environment , And never will be a reception friendly environment.