If the attic construction is wood with standard composition flat singles , No metal backed insulation , No metal roof , No solar panels , No thick roof tiles.
Mount a Winegard HD7082P antenna , with no antenna amplifier, in the attic aimed at about 70 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Your location has Receivable Digital Tv Channels in ALL 3 Tv channel bands.
VHF low band Digital channels 2 thru 6.
VHF high band Digital channels 7 thru 13.
UHF band Digital channels 14 thru 51.
The HD7082P antenna receives ALL 3 Tv Digital Bands.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.winegarddirect.com ,
http://www.amazon.com.