For reception of the groups of digital tv stations/channels to the , north , north west , south - south east. Install a Antennas Direct C2V antenna with a Antennas Direct CPA-19 preamp aimed at about 145 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. Remove the reflector screen from the C2V antenna so the antenna will receive tv stations/channels at the back and front of the antenna.
http://antennasdirect.com. The C2V antenna and preamp will be mounted above the roof. Here are some antenna mounts,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com. Type the word ronard in the
http://www.solidsignal.com search box or buy from ronard.