Sec.  22.913   Effective radiated power limits.

   The effective radiated power (ERP) of transmitters in the Cellular
   Radiotelephone Service must not exceed the limits in this section.

   (a) Maximum ERP. In general, the effective radiated power (ERP) of base
   transmitters and cellular repeaters must not exceed 500 Watts. However, for
   those systems operating in areas more than 72 km (45 miles) from
   international borders that:

   (1) Are located in counties with population densities of 100 persons or
   fewer per square mile, based upon the most recently available population
   statistics from the Bureau of the Census; or,

   (2) Extend coverage on a secondary basis into cellular unserved areas, as
   those areas are defined in  Sec. 22.949, the ERP of base transmitters and
   cellular repeaters of such systems must not exceed 1000 Watts. The ERP of
   mobile transmitters and auxiliary test transmitters must not exceed 7 Watts.

   (b) Height-power limit. The ERP of base transmitters must not exceed the
   amount that would result in an average distance to the service area boundary
   of 79.1 kilometers (49 miles) for cellular systems authorized to serve the
   Gulf of Mexico MSA and 40.2 kilometers (25 miles) for all other cellular
   systems. The average distance to the service area boundary is calculated by
   taking the arithmetic mean of the distances determined using the procedures
   specified in  Sec. 22.911 for the eight cardinal radial directions.

   (c) Coordination exemption. Licensees need not comply with the height-power
   limit in paragraph (b) of this section if the proposed operation is
   coordinated with the licensees of all affected cellular systems on the same
   channel block within 121 kilometers (75 miles) and concurrence is obtained.

   [ 59 FR 59507 , Nov. 17, 1994, as amended at  69 FR 75171 , Dec. 15, 2004]