On the Garden State Parkway, milepost 153, there is the NJ State Police tower. Anybody know what the nearby set of 4 towers is for? They appear to be some sort of Rhombic setup...?
That would be the broadcast array of WPAT 930 AM, Clifton, NJ. The circular rings at the top of each tower are "capacitance hats", used for tuning each radiator to the proper frequency. By adjusting the signal phase fed to each tower, the radiation pattern of the signal can be altered. One of the towers also supports smaller antennas used for the stations FM operations. Pics of the array and some station history available at:
http://hawkins.pair.com/wpat.shtml
