Install a Channel Master CM3679 antenna ,
http://www.saveandreplay.com. Aim the CM3679 antenna at about 195 degree magnetic compass , Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html . Mount the CM3679 antenna above the roof. Also install a Antennas Direct CPA-19 preamp , saveandreplay now stocks the Antennas Direct ,
http://antennasdirect.com , CPA-19 preamp. Also use new RG-6 coax on the outside , standard RG-6 coax will be fine. No need to use quad shield coax RG-6 coax. Yes you can use quad shield if you decide to. For normal low interference reception situations , quad shield is not needed but yes you can use it if you like.