jimguzowski,
Without a link to a tvfool analysis for your exact location, none of us are able to tell how many broadcasts are reaching you and how strong the signals are. Without this information, we cannot tell what size/type/configuration of antenna is appropriate for you.
The Terk HDTVa is an indoor amplified antenna. That may or may not be the right antenna for you. If your signals are too weak, an indoor antenna might not be good enough to pick them up. If your signals are too strong, it might overload the built-in amp of this antenna and end up causing signal distortion. It would really help if you could post your tvfool analysis so that we can see what kind of signals you're getting.
If you need help trying to use the tvfool signal analysis tool, try reading the tutorial posted
here.