Businesses located in a nonresidential zone which use satellite earth station antennas in the conduct of their business shall be permitted to install one satellite earth station antenna on the roof of their buildings subject to the requirements of Subsection
a hereinabove. One satellite earth station antenna shall be permitted per business entity. Such satellite earth station antennas shall be no higher than 12 feet above the roof elevation of the building on which it is located. Such antennas shall be screened from the view of any adjacent property or public street.