I recommend give the Antenna Craft U4000 a try , no preamplifier needed , aim the antenna at about , 270 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. Also the U4000 has metal reflector rods behind the V shaped metal receptor wires. The metal reflector rods have metal clips that hold the metal receptor rods in the horizontal position , lift the clips and turn the metal reflector rods to a vertical position. This gets the metal reflector rods out of the way so more signal can be received by the V shaped metal receptor wires through the back side of the U4000. Radio Shack sells Antenna Craft antennas and might have the U4000 in stock. Also here are places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.starkelectronic.com ,
http://www.3starinc.com