Repaired TVFool link:
http://www.tvfool.com/?option=com_wr...d2434bc37a8965
KJWP transmits from Roxborough, same as all the other Philly stations. Same tower as WCAU, among other stations. That's where the antenna needs to be aimed.
Why do you have a 'PS-1403 signal booster' installed? A PS-1403 is a power inserter for a Winegard pre-amp, it's not a "signal booster".