+=>
Above the Peak of the Roof in such a manner that reception is not , obstructed , impeded , blocked , by the , attic , roof , building , in the directions of , North East , North , North West.
Install a , ANT751 antenna.
Or
http://www.antennacraft.net.
HBU11K antenna.
----------
Aimed at about , 0 degree magnetic compass direction , North.
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.
----------
A antenna system amplifier is not required.
----------
To Prove Reception connect a New Continues Length of RG-6 coax to the antenna and run the New Continues length of coax through a open door or window direct to 1 Tv.
No couplers , No splitters.
----------
Also Know This.
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 , attic , roof , building in the directions of reception.
At the reception location that is , North East , North , North West.
Some and not all Negative Effects are.
Absorbing Blocking Reception.
Multi=Path Reflecting Tv Signals Bouncing All Around.
The Best Practice for Reliable Reception is to install the antenna at a location that has the least amount to no amount of obstructions in the directions of reception including your own , attic , roof , building , in the directions of reception.
----------
Digital Tv 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.