Make two new radar reports with the antenna at 25 feet and 40 feet. The NBC transmission is weak at your location. For reception a Winegard HD7698P antenna with a Antennas Direct CPA-19 preamp will be installed and aimed at about 143 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. Here are Strong and Sturdy antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html. Here are places to buy antennas and etc. ,
http://www.winegarddirect.com ,
http://www.antennasdirect.com ,
http://www.solidsignal.com ,
http://www.amazon.com