Code of Federal Regulations (alpha)

CFR /  Title 47  /  Part 90  /  Sec. 90.635 Limitations on power and antenna height.

(a) The effective radiated power and antenna height for base stations may not exceed 1 kilowatt (30 dBw) and 304 m. (1,000 ft.) above average terrain (AAT), respectively, or the equivalent thereof as determined from the Table. These are maximum values, and applicants will be required to justify power levels and antenna heights requested.

(b) The maximum output power of the transmitter for mobile stations is 100 watts (20 dBw). Table--Equivalent Power and Antenna Heights for Base Stations in the 851-

869 MHz and 935-940 MHz Bands Which Have a Requirement for a 32 km (20

mi) Service Area Radius------------------------------------------------------------------------

Effective

radiated power

Antenna height (ATT) meters (feet) (watts) \1 2

4\------------------------------------------------------------------------Above 1,372 (4,500)..................................... 65Above 1,220 (4,000) to 1,372 (4,500).................... 70Above 1,067 (3,500) to 1,220 (4,000).................... 75Above 915 (3,000) to 1,067 (3,500)...................... 100Above 763 (2,500) to 915 (3,000)........................ 140Above 610 (2,000) to 763 (2,500)........................ 200Above 458 (1,500) to 610 (2,000)........................ 350Above 305 (1,000) to 458 (1,500)........................ 600Up to 305 (1,000)....................................... \3\ 1,000------------------------------------------------------------------------\1\ Power is given in terms of effective radiated power (ERP).\2\ Applicants in the Los Angeles, CA, area who demonstrate a need to

serve both the downtown and fringe areas will be permitted to utilize

an ERP of 1 kw at the following mountaintop sites: Santiago Park,

Sierra Peak, Mount Lukens, and Mount Wilson.\3\ Stations with antennas below 305 m (1,000 ft) (AAT) will be

restricted to a maximum power of 1 kw (ERP).\4\ Licensees in San Diego, CA, will be permitted to utilize an ERP of

500 watts at the following mountaintop sites: Palomar, Otay, Woodson

and Miguel. [70 FR 61062, Oct. 20, 2005]