A. Except as provided in Section 9-12-2, no person shall construct any building, construct an addition to any building that increases the gross floor area of the building by more than twenty percent (20%), change the occupancy classification of more than fifty percent (50%) of the floor area of any building or cause the same to be done to a building, if such building fails to support adequate radio coverage for the Minnesota Regional Radio Communications System, including but not limited to firefighters and police officers.
B. Except as provided in Section 9-12-2, all existing buildings shall have adequate radio coverage within the building for the City’s public safety employees, which may require improvement of the building’s existing radio coverage levels in the following circumstances:
1. When the existing radio coverage system cannot be repaired; or
2. When the existing radio coverage system is being replaced.
C. For the purposes of this Chapter, parking garages, parking ramps, stair shafts, elevators and stairwells are included in the definition of the term “building.” For purposes of this Chapter, adequate radio coverage shall be an average received field strength of no less than ninety-three (93) dBm, or one percent (1%) BER, measured at thirty to thirty-six inches (30" - 36") above the floor over ninety percent (90%) of the area of each floor including the basement in the building and other critical areas determined by the Fire Chief or the Fire Chief’s designee such as fire command centers, stairwells, elevators, high hazard areas, basements and parking garages and ramps. Without an in-building radio system, only the received signal level standard must be achieved, as the talk-out path is equivalent to the talk-in path in this regional radio system.