They had a powerful transmitter and it truly was heard up and down the coast.
Now that transmitter is wasted on sports talk radio, blech.
Wikipedia:
Thus, while WWKB can be heard across most of the eastern half of North America at night, its signal is spotty only 20 miles (32 km) southwest of Buffalo. Local residents remain largely unaware that the antenna array is internationally famous for sending WWKB's nighttime signal to all over Nordic countries on a regular basis. The directional nighttime signal has resulted the station being commonly heard in parts of Finland and Sweden using special DX equipment during winter months. A group of Scandinavian radio reception enthusiasts visited for conference at a Camp Road motel, to view the transmitter array, apparently to photograph and measure it.