Antenna height and location is Important.
The best reception will take place with the antenna at a height and location that has the least amount or no obstructions in the way of the directions of the Tv stations transmitting antenna.
Such as , trees , buildings , hills , mountains , and etc. .
Under the word Path in the tvfool radar report are.
LOS=Line Of Sight.
1 edge = 1 hill or mountain in the way of LOS reception.
2 edge = 2 hills or mountains in the way of LOS reception.
Diffraction is the bending of the Tv transmissions that come across the hills / mountains that are in the way of LOS reception.
Moving the antenna to a location that has the most diffraction will improve signal strength.
That could be moving the antenna 1 inch , up , down , forward , backward , left , right , Or moving the antenna , feet in any direction.
Or even further distance.
Here are some but not all antenna mounts.
http://www.ronard.com/909911.html ,
http://www.ronard.com/Tripods%200703/4712.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.
http://www.solidsignal.com.
Here are some antenna towers ,
http://www.palcoelectronics.com/pe300.aspx.
Here are more but not all antenna masts.
http://www.3starinc.com/telescopic_masts_and_more.html