The station began broadcasting with a 250-watt non-directional signal, only heard in and around Nassau County, New York. In 1960, the Federal Communications Commission (FCC) gave permission for WHLI to raise its power to the current 10,000 watts, using a two-tower directional signal.
In 1960, the Federal Communications Commission (FCC) granted permission for WHLI to raise its transmission power from 250 watts to 10,000 watts, enabling it to broadcast a directional signal that could be heard throughout Nassau County, New York.