(a) Any county ordinance or order concerning the regulation or placement of amateur radio antennas must:
(1) Comply with all Federal Communications Commission regulations and its rulings and orders;
(2) Reasonably accommodate amateur radio communications; and
(3) Represent the minimum practicable regulation to accomplish the county's legitimate purpose.
(b) Nothing in this section shall be deemed to prohibit a county commission from taking action to protect or preserve historic buildings, structures, sites and districts that have been established by federal, state or local law.