The AN/FPS-35 was so powerful that it disrupted local TV and radio broadcasts, and had to be shut down several times and re-calibrated. The problems caused this radar to be taken out of service temporarily in 1961. With the problems resolved, the radar was operational again in 1962 and by 1963 an AN/FPS-26 had replaced one of the AN/FPS-6 height-finder radars.
In December 1960 the large, high-power AN/FPS-35 radar became operational at Montauk. The reflector was  long and  tall, weighing 40 tons, and was supposedly only the second ever built. It was able to detect airborne objects at distances of well over .