 In early 2007, WPEN was able to increase its daytime power from 5,000 to 25,000 watts.Previously nondirectional during daylight hours, it switched to directional operation, using the three towers it had previously used for nighttime broadcasting at its longtime transmitter site in the Overbrook Park section of Philadelphia.In June 2008, WPEN was granted a construction permit for a second daytime power increase, this time to 43,000 watts.