Hello. I am new to this. I live in Texas, USA, not Canada. Anyhow, I hope you can help. I cut the cable and had a square RCA antenna in the attic. It was ok, but had a hard time picking up the local PBS (public television), That is VHF. So I built a 4 bowtie antenna which was better. Now I get PBS and another new station, and quite a few stations actually. However, everything still has 2 out of 5 bars. Most stations are less than 30 miles away.The antenna is pointed in the direction of most stations. I have the antenna in the attic. See photo. I adjusted the reflector since I took this photo. I moved the radiant barrier in that spot so it is not in the way. So where do I go from here to get a better signal strength? Thank you.