 Likewise, WNTQ's Height Above Average Terrain (HAAT) of 201 meters (660 feet) exceeds the FCC maximum for a Class B facility of 150 meters (492 feet).The FCC rules determining the power and height maxima for Class B stations were not formed until 1964.Because WNTQ was operating at powers in excess of the FCC rules when they were adopted in 1964, WNTQ, and other stations were grandfathered to be permitted to operate with power and height larger than what is permitted by today's rules.