A outside roof top Winegard HD7000R antenna aimed at about 317 degree magnetic compass will lock in the reception of digital channel 5. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. Here are some roof top antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com. Here are some places to buy antennas and etc. ,
http://www.winegarddirect.com ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.ramelectronics.net. To buy the ronard mounts from solidsignal , type the word - ronard - in the solidsignal search box or buy from ronard.