Thanks for the photos.
You are not going to get WPBA PBS, real channel 21, virtual channel 30.1 with those buildings in the way.
You need to be happy with WGTV PBS, real channel 8, virtual channel 8.1, because it has Create and WPBA doesn't.
The only way you
might have a chance for WPBA is if you:
1. Bought an Antennas Direct DB8e or 91XG
2. Mounted it much higher, maybe on your roof, to clear those buildings
3. Aimed both panels of the DB8e or the 91XG at an azimuth of 236 degrees magnetic to try to reject the co-channel interference from WHNS Fox also on the same channel
(looks like we were posting at the same time again, so the OP gets a second opinion)
