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http://forum.tvfool.com/showthread.php?t=14064.
Attics and inside of buildings Are Not a reception friendly environment and Never Will Be a reception friendly environment.
Yes start with the HBU22 antenna in the attic aimed at about 260 degree magnetic compass direction.
If reception situations happen in the attic that are not resolvable with antenna aim adjustments and antenna location adjustments in the attic.
Then move the HBU22 antenna to Above the Peak of the Roof in such a manner that the Roof and Attic and Building are Not , obstructing , impeding , blocking , reception in the directions of , South West , West , North West , North.
Install a ,
http://www.antennacraft.com.
HBU22 antenna.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing.html.
Use a Real and Actual magnetic compass to aim antenna , do not trust a cell phone compass.