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Attic and Inside of Buildings Are Not a reception friendly environment and Never Will Be a reception friendly environment.
Start the Reliable Reception Process with a , HBU11K antenna in the attic.
http://www.antennacraft.net.
Aim the HBU11K antenna at about 300 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointong/pointing.html.
Use a Real and Actual magnetic compass to aim antenna.
If you have reception issues/problems that are not resolvable with antenna aim and location adjustments in the attic.
Then move the HBU11K antenna to Above the Peak of the Roof in such a manner that reception is not , obstructed , impeded , blocked , buy the , attic , roof , building , in the directions of , North North West , West.
As always , trees and tree leaves , plants and plant leaves , have a Negative Effect on Broadcast Tv Reception and so do buildings and other obstructions including your own roof and building.
Some and not all Negative Effects are.
Absorbing and Blocking Reception.
Multi-Path Reflecting Tv Signals Bouncing All Around.
For Reliable Reception the Best Practice is to install a antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including your own , attic , roof , building.
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The reception signal strengths are strong in the Green reception zone of the tvfool radar report and channel list.
A antenna system amplifier is not required.
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.
For 4 Tv's connected use a 4 way splitter.
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To keep Weather/Water out of outside coax and connections.
For coax that is outside use the RG-6 coax that has the Compression type connectors on the ends of the coax , not the crimp type connectors on the ends of the coax.
To make double sure that water does not get into coax and connections outside , wrap with ,
http://www.coaxseal.com.
To keep water out of the matching transformer (balun) that connects the antenna to the coax.
Remove and discard the Rubber Boot that is often supplied with a outside type matching transformer.
Rubber boots take in and hold water at the connections , holding water at outside connections is not good.
To keep weather/water out of the matching transformer , wrap the matching transformer and both ends of matching transformer with coax seal.
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Digital Tuners can develop -Digital Glitches- that are not cleared out with simple channel scans.
To clear tuner do Double Rescan.
http://www.wchstv.com/DoubleReScanAlert.pdf
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Here is the Federal Antenna Law that says Yes you can install the antenna above the roof so as to have reliable reception.
http://www.fcc.gov/mb/facts/otard.html
