47 C.F.R. § 24.232 Power and antenna height limits.
Title 47 - Telecommunication
(a) Base stations are limited to 1640 watts peak equivalent isotropically radiated power (EIRP) with an antenna height up to 300 meters HAAT, except as described in paragraph (b) below. See §24.53 for HAAT calculation method. Base station antenna heights may exceed 300 meters with a corresponding reduction in power; see Table 1 of this section. The service area boundary limit and microwave protection criteria specified in §§24.236 and 24.237 apply. (b) Base stations that 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, are limited to 3280 watts peak equivalent isotropically radiated power (EIRP) with an antenna height up to 300 meters HAAT; See §24.53 for HAAT calculation method. Base station antenna heights may exceed 300 meters with a corresponding reduction in power; see Table 2 of this section. The service area boundary limit and microwave protection criteria specified in §§24.236 and 24.237 apply. Operation under this paragraph must be coordinated in advance with all PCS licensees within 120 kilometers (75 miles) of the base station and is limited to base stations located more than 120 kilometers (75 miles) from the Canadian border and more than 75 kilometers (45 miles) from the Mexican border. (c) Mobile/portable stations are limited to 2 watts EIRP peak power and the equipment must employ means to limit the power to the minimum necessary for successful communications. (d) Peak transmit power must be measured over any interval of continuous transmission using instrumentation calibrated in terms of an rms-equivalent voltage. The measurement results shall be properly adjusted for any instrument limitations, such as detector response times, limited resolution bandwidth capability when compared to the emission bandwidth, sensitivity, etc., so as to obtain a true peak measurement for the emission in question over the full bandwidth of the channel. [70 FR 61059, Oct. 20, 2005]
Title 47: Telecommunication
PART 24—PERSONAL COMMUNICATIONS SERVICES
Subpart E—Broadband PCS
§ 24.232 Power and antenna height limits.
Table 1_Reduced Power for Base Station Antenna Heights Over 300 Meters------------------------------------------------------------------------ Maximum HAAT in meters EIRP watts------------------------------------------------------------------------[le] 300................................................... 1640[le] 500................................................... 1070[le] 1000.................................................. 490[le] 1500.................................................. 270[le] 2000.................................................. 160------------------------------------------------------------------------
Table 2_Reduced Power for Base Station Antenna Heights Over 300 Meters------------------------------------------------------------------------ Maximum HAAT in meters EIRP watts------------------------------------------------------------------------[le] 300................................................... 3280[le] 500................................................... 2140[le] 1000.................................................. 980[le] 1500.................................................. 540[le] 2000.................................................. 320------------------------------------------------------------------------
