Here is how to point indoor and out door Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html . Point the antenna at about 130 degree magnetic compass. Exclusive use of the balcony means that the balcony is connected only to your apt.. That means you can put a antenna on the balcony. The DB4 antenna can be mounted on a tripod mount , the tripod mount will stand on the floor of the balcony and can be made stable with a weight. A flat antenna cable can be instaled at a window or door ,
http://www.parts-express.com/pe/show...number=180-206 . Here are some places to buy Tv antennas and etc. ,
http://www.solidsignal.com ,
http://www.3starinc.com ,
http://www.starkelectronic.com ,
http://www.amazon.com