getting a signal from abc headquarters in new york city was a challenge in the early days with no access to satellites. as a result, wilk set up a microwave tower in effort, about east of wilkes-barre. from there, the network signal was bounced to the penobscot knob transmitter site. often, station engineers had to adjust the effort transmitter to accept a signal from wfil-tv (now abc o&o wpvi-tv) in philadelphia if they were unable to receive the new york feed.