Raising the antenna height did not bring any VHF high band channels into reception range , so all the receivable channels are UHF channels. I recommend mounting a antenna as close to 40 feet as possible. And higher would be good. So install a Antennas Direct 91XG antenna with a Antennas Direct PA-18 preamp. Aimed at about 145 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. If you do not already have a way to get the antenna up high. Then install a
http://www.ronard.com/Tripods%200703/4712.html on the roof. If mounted on the roof of a one story house , this will get the antenna up to about 35 feet. Be careful up on the roof , falling off the roof is real close to zero fun. Big antennas are not "old school" , big antennas are recommended every day and night here at tvfool. Why?? Because Big antennas receive weak tv signals. Small antennas do not. Here are places to buy antennas and etc. ,
http://www.antennasdirect.com ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.starkelectronic.com ,
http://www.3starinc.com