+=>
As always , attics and the inside of buildings Are Not a reception friendly environment and Never Will Be a reception friendly environment.
Many houses in Texas have Metal Covered Insulation Panels in the attic.
Metal covered insulation panels do a great job of , obstructing , impeding , blocking , Tv reception.
And other obstructions.
And electric wiring noise and the wiring reflects Tv signals.
And electronic devices that generate noise in the attic.
--------If You Must Install a Antenna In The Attic.--------
Then install a.
http://www.antennacraft.net.
HD1200 , All Channel Antenna.
Aim the HD1200 All Channel Antenna at about 180 degree magnetic compass direction.
180 degree is South.
------------
Here is how to aim antennas.
http://www.kyes.com/antenna/pointing/pointing.html.
Use a Real and Actual magnetic compass to aim antenna , do not trust a , cell phone , tablet and etc. compass.
To Assist Best Tv Reception , most Digital Tv's have Signal Strength Meter and some Digital Tv's also have a Signal Quality Meter.
As always , Tv antenna aim and location can adjusted for best reception.
------------
----------->Test Reception Without A Antenna System Amplifier.<------------
Then can Test reception with a.
http://www.winegarddirect.com.
LNA-100 Boost , antenna system amplifier.
Most houses have a electric outlet / light in the attic , so as to plug in the amplifier.
------------
The Major Networks , NBC , CBS , ABC , PBS Networks , FOX , MyNetwork , and more should be received.
------------
The Tv's Must Channel Scan for the , OTA=Over The Air , ATSC Digital Broadcast Tv Stations/Channels , often named the ~ Antenna Channels ~ ATSC Channels ~ DTV Channels ~ Air 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.