Antennas which extend above the wireless communications support structure shall not be calculated as part of the height of the monopole I wireless communication support structure. For example, a monopole I, as defined in this chapter, may be up to 60 feet in height, and a macro facility affixed thereto, as defined in this chapter, may be up to 15 in height, thereby allowing a maximum combined height for the monopole I wireless communication support structure and any affixed macro facility antennas of 75 feet.